From 370f048214b4e9aa2102fa3c454ae1374da287c5 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 2 Jul 2009 00:09:33 -0500 Subject: xfs: add more statics & drop some unused functions A lot more functions could be made static, but they need forward declarations; this does some easy ones, and also found a few unused functions in the process. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 36fb8a6..de59378 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -687,7 +687,7 @@ xfs_barrier_test( return error; } -void +STATIC void xfs_mountfs_check_barriers(xfs_mount_t *mp) { int error; diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index b619d6b..fbf3e02 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -740,21 +740,6 @@ __xfs_inode_clear_reclaim_tag( XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG); } -void -xfs_inode_clear_reclaim_tag( - xfs_inode_t *ip) -{ - xfs_mount_t *mp = ip->i_mount; - xfs_perag_t *pag = xfs_get_perag(mp, ip->i_ino); - - read_lock(&pag->pag_ici_lock); - spin_lock(&ip->i_flags_lock); - __xfs_inode_clear_reclaim_tag(mp, pag, ip); - spin_unlock(&ip->i_flags_lock); - read_unlock(&pag->pag_ici_lock); - xfs_put_perag(mp, pag); -} - STATIC int xfs_reclaim_inode_now( struct xfs_inode *ip, diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h index 2a10301..23e7e7e 100644 --- a/fs/xfs/linux-2.6/xfs_sync.h +++ b/fs/xfs/linux-2.6/xfs_sync.h @@ -48,7 +48,6 @@ int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode); int xfs_reclaim_inodes(struct xfs_mount *mp, int mode); void xfs_inode_set_reclaim_tag(struct xfs_inode *ip); -void xfs_inode_clear_reclaim_tag(struct xfs_inode *ip); void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag, struct xfs_inode *ip); diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h index f24b50b..af3cfeb 100644 --- a/fs/xfs/xfs_ag.h +++ b/fs/xfs/xfs_ag.h @@ -91,9 +91,6 @@ typedef struct xfs_agf { #define XFS_AGF_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp)) #define XFS_BUF_TO_AGF(bp) ((xfs_agf_t *)XFS_BUF_PTR(bp)) -extern int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp, - xfs_agnumber_t agno, int flags, struct xfs_buf **bpp); - /* * Size of the unlinked inode hash table in the agi. */ diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 2cf944e..6316004 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2248,7 +2248,7 @@ xfs_alloc_put_freelist( /* * Read in the allocation group header (free/alloc section). */ -int /* error */ +STATIC int /* error */ xfs_read_agf( struct xfs_mount *mp, /* mount point structure */ struct xfs_trans *tp, /* transaction pointer */ diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 7928b99..9759724 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -3713,7 +3713,7 @@ done: * entry (null if none). Else, *lastxp will be set to the index * of the found entry; *gotp will contain the entry. */ -xfs_bmbt_rec_host_t * /* pointer to found extent entry */ +STATIC xfs_bmbt_rec_host_t * /* pointer to found extent entry */ xfs_bmap_search_multi_extents( xfs_ifork_t *ifp, /* inode fork pointer */ xfs_fileoff_t bno, /* block number searched for */ diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index 1b8ff92..56f62d2 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -392,17 +392,6 @@ xfs_bmap_count_blocks( int whichfork, int *count); -/* - * Search the extent records for the entry containing block bno. - * If bno lies in a hole, point to the next entry. If bno lies - * past eof, *eofp will be set, and *prevp will contain the last - * entry (null if none). Else, *lastxp will be set to the index - * of the found entry; *gotp will contain the entry. - */ -xfs_bmbt_rec_host_t * -xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *, - xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *); - #endif /* __KERNEL__ */ #endif /* __XFS_BMAP_H__ */ diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c index 5c1ade0..eb7b702 100644 --- a/fs/xfs/xfs_bmap_btree.c +++ b/fs/xfs/xfs_bmap_btree.c @@ -202,16 +202,6 @@ xfs_bmbt_get_state( ext_flag); } -/* Endian flipping versions of the bmbt extraction functions */ -void -xfs_bmbt_disk_get_all( - xfs_bmbt_rec_t *r, - xfs_bmbt_irec_t *s) -{ - __xfs_bmbt_get_all(get_unaligned_be64(&r->l0), - get_unaligned_be64(&r->l1), s); -} - /* * Extract the blockcount field from an on disk bmap extent record. */ @@ -816,6 +806,16 @@ xfs_bmbt_trace_key( *l1 = 0; } +/* Endian flipping versions of the bmbt extraction functions */ +STATIC void +xfs_bmbt_disk_get_all( + xfs_bmbt_rec_t *r, + xfs_bmbt_irec_t *s) +{ + __xfs_bmbt_get_all(get_unaligned_be64(&r->l0), + get_unaligned_be64(&r->l1), s); +} + STATIC void xfs_bmbt_trace_record( struct xfs_btree_cur *cur, diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h index 0e8df00..5549d49 100644 --- a/fs/xfs/xfs_bmap_btree.h +++ b/fs/xfs/xfs_bmap_btree.h @@ -220,7 +220,6 @@ extern xfs_fsblock_t xfs_bmbt_get_startblock(xfs_bmbt_rec_host_t *r); extern xfs_fileoff_t xfs_bmbt_get_startoff(xfs_bmbt_rec_host_t *r); extern xfs_exntst_t xfs_bmbt_get_state(xfs_bmbt_rec_host_t *r); -extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r); extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r); diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index e9df995..cde5a26 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -646,46 +646,6 @@ xfs_btree_read_bufl( } /* - * Get a buffer for the block, return it read in. - * Short-form addressing. - */ -int /* error */ -xfs_btree_read_bufs( - xfs_mount_t *mp, /* file system mount point */ - xfs_trans_t *tp, /* transaction pointer */ - xfs_agnumber_t agno, /* allocation group number */ - xfs_agblock_t agbno, /* allocation group block number */ - uint lock, /* lock flags for read_buf */ - xfs_buf_t **bpp, /* buffer for agno/agbno */ - int refval) /* ref count value for buffer */ -{ - xfs_buf_t *bp; /* return value */ - xfs_daddr_t d; /* real disk block address */ - int error; - - ASSERT(agno != NULLAGNUMBER); - ASSERT(agbno != NULLAGBLOCK); - d = XFS_AGB_TO_DADDR(mp, agno, agbno); - if ((error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d, - mp->m_bsize, lock, &bp))) { - return error; - } - ASSERT(!bp || !XFS_BUF_GETERROR(bp)); - if (bp != NULL) { - switch (refval) { - case XFS_ALLOC_BTREE_REF: - XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, refval); - break; - case XFS_INO_BTREE_REF: - XFS_BUF_SET_VTYPE_REF(bp, B_FS_INOMAP, refval); - break; - } - } - *bpp = bp; - return 0; -} - -/* * Read-ahead the block, don't wait for it, don't return a buffer. * Long-form addressing. */ @@ -2951,7 +2911,7 @@ error0: * inode we have to copy the single block it was pointing to into the * inode. */ -int +STATIC int xfs_btree_kill_iroot( struct xfs_btree_cur *cur) { diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index 4f852b7..7fa0706 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -379,20 +379,6 @@ xfs_btree_read_bufl( int refval);/* ref count value for buffer */ /* - * Get a buffer for the block, return it read in. - * Short-form addressing. - */ -int /* error */ -xfs_btree_read_bufs( - struct xfs_mount *mp, /* file system mount point */ - struct xfs_trans *tp, /* transaction pointer */ - xfs_agnumber_t agno, /* allocation group number */ - xfs_agblock_t agbno, /* allocation group block number */ - uint lock, /* lock flags for read_buf */ - struct xfs_buf **bpp, /* buffer for agno/agbno */ - int refval);/* ref count value for buffer */ - -/* * Read-ahead the block, don't wait for it, don't return a buffer. * Long-form addressing. */ @@ -432,7 +418,6 @@ int xfs_btree_decrement(struct xfs_btree_cur *, int, int *); int xfs_btree_lookup(struct xfs_btree_cur *, xfs_lookup_t, int *); int xfs_btree_update(struct xfs_btree_cur *, union xfs_btree_rec *); int xfs_btree_new_iroot(struct xfs_btree_cur *, int *, int *); -int xfs_btree_kill_iroot(struct xfs_btree_cur *); int xfs_btree_insert(struct xfs_btree_cur *, int *); int xfs_btree_delete(struct xfs_btree_cur *, int *); int xfs_btree_get_rec(struct xfs_btree_cur *, union xfs_btree_rec **, int *); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 1f22d65..2dcb3d7 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -641,7 +641,7 @@ xfs_iformat_btree( return 0; } -void +STATIC void xfs_dinode_from_disk( xfs_icdinode_t *to, xfs_dinode_t *from) @@ -1237,7 +1237,7 @@ xfs_isize_check( * In that case the pages will still be in memory, but the inode size * will never have been updated. */ -xfs_fsize_t +STATIC xfs_fsize_t xfs_file_last_byte( xfs_inode_t *ip) { @@ -3827,7 +3827,7 @@ xfs_iext_inline_to_direct( /* * Resize an extent indirection array to new_size bytes. */ -void +STATIC void xfs_iext_realloc_indirect( xfs_ifork_t *ifp, /* inode fork pointer */ int new_size) /* new indirection array size */ @@ -3852,7 +3852,7 @@ xfs_iext_realloc_indirect( /* * Switch from indirection array to linear (direct) extent allocations. */ -void +STATIC void xfs_iext_indirect_to_direct( xfs_ifork_t *ifp) /* inode fork pointer */ { diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 7701670..a0b2da6 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -526,7 +526,6 @@ void xfs_ipin(xfs_inode_t *); void xfs_iunpin(xfs_inode_t *); int xfs_iflush(xfs_inode_t *, uint); void xfs_ichgtime(xfs_inode_t *, int); -xfs_fsize_t xfs_file_last_byte(xfs_inode_t *); void xfs_lock_inodes(xfs_inode_t **, int, uint); void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint); @@ -594,8 +593,6 @@ int xfs_itobp(struct xfs_mount *, struct xfs_trans *, struct xfs_buf **, uint); int xfs_iread(struct xfs_mount *, struct xfs_trans *, struct xfs_inode *, xfs_daddr_t, uint); -void xfs_dinode_from_disk(struct xfs_icdinode *, - struct xfs_dinode *); void xfs_dinode_to_disk(struct xfs_dinode *, struct xfs_icdinode *); void xfs_idestroy_fork(struct xfs_inode *, int); @@ -614,8 +611,6 @@ void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int); void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int); void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int); void xfs_iext_realloc_direct(xfs_ifork_t *, int); -void xfs_iext_realloc_indirect(xfs_ifork_t *, int); -void xfs_iext_indirect_to_direct(xfs_ifork_t *); void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t); void xfs_iext_inline_to_direct(xfs_ifork_t *, int); void xfs_iext_destroy(xfs_ifork_t *); diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index aeb2d22..c471122 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -39,7 +39,7 @@ #include "xfs_error.h" #include "xfs_btree.h" -int +STATIC int xfs_internal_inum( xfs_mount_t *mp, xfs_ino_t ino) diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index 1fb04e7..20792bf 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -99,11 +99,6 @@ xfs_bulkstat_one( void *dibuff, int *stat); -int -xfs_internal_inum( - xfs_mount_t *mp, - xfs_ino_t ino); - typedef int (*inumbers_fmt_pf)( void __user *ubuffer, /* buffer to write to */ const xfs_inogrp_t *buffer, /* buffer to read from */ diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index bcad5f4..679c7c4 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -451,8 +451,6 @@ extern int xlog_find_tail(xlog_t *log, extern int xlog_recover(xlog_t *log); extern int xlog_recover_finish(xlog_t *log); extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int); -extern void xlog_recover_process_iunlinks(xlog_t *log); - extern struct xfs_buf *xlog_get_bp(xlog_t *, int); extern void xlog_put_bp(struct xfs_buf *); diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 47da2fb..1099395 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3263,7 +3263,7 @@ xlog_recover_process_one_iunlink( * freeing of the inode and its removal from the list must be * atomic. */ -void +STATIC void xlog_recover_process_iunlinks( xlog_t *log) { diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 5c6f092..8b6c9e8 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1568,7 +1568,7 @@ xfs_mod_sb(xfs_trans_t *tp, __int64_t fields) * * The m_sb_lock must be held when this routine is called. */ -int +STATIC int xfs_mod_incore_sb_unlocked( xfs_mount_t *mp, xfs_sb_field_t field, diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index a512238..a6c023b 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -414,13 +414,10 @@ typedef struct xfs_mod_sb { extern int xfs_log_sbcount(xfs_mount_t *, uint); extern int xfs_mountfs(xfs_mount_t *mp); -extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); extern void xfs_unmountfs(xfs_mount_t *); extern int xfs_unmountfs_writesb(xfs_mount_t *); extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); -extern int xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t, - int64_t, int); extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, uint, int); extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); diff --git a/fs/xfs/xfs_mru_cache.c b/fs/xfs/xfs_mru_cache.c index afee7eb..4b0613d 100644 --- a/fs/xfs/xfs_mru_cache.c +++ b/fs/xfs/xfs_mru_cache.c @@ -564,35 +564,6 @@ xfs_mru_cache_lookup( } /* - * To look up an element using its key, but leave its location in the internal - * lists alone, call xfs_mru_cache_peek(). If the element isn't found, this - * function returns NULL. - * - * See the comments above the declaration of the xfs_mru_cache_lookup() function - * for important locking information pertaining to this call. - */ -void * -xfs_mru_cache_peek( - xfs_mru_cache_t *mru, - unsigned long key) -{ - xfs_mru_cache_elem_t *elem; - - ASSERT(mru && mru->lists); - if (!mru || !mru->lists) - return NULL; - - spin_lock(&mru->lock); - elem = radix_tree_lookup(&mru->store, key); - if (!elem) - spin_unlock(&mru->lock); - else - __release(mru_lock); /* help sparse not be stupid */ - - return elem ? elem->value : NULL; -} - -/* * To release the internal data structure spinlock after having performed an * xfs_mru_cache_lookup() or an xfs_mru_cache_peek(), call xfs_mru_cache_done() * with the data store pointer. diff --git a/fs/xfs/xfs_mru_cache.h b/fs/xfs/xfs_mru_cache.h index dd58ea1..5d439f3 100644 --- a/fs/xfs/xfs_mru_cache.h +++ b/fs/xfs/xfs_mru_cache.h @@ -49,7 +49,6 @@ int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key, void * xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key); void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key); void *xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key); -void *xfs_mru_cache_peek(struct xfs_mru_cache *mru, unsigned long key); void xfs_mru_cache_done(struct xfs_mru_cache *mru); #endif /* __XFS_MRU_CACHE_H__ */ diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h index f76c003..ae65f0d 100644 --- a/fs/xfs/xfs_rw.h +++ b/fs/xfs/xfs_rw.h @@ -78,10 +78,4 @@ extern int xfs_read_buf(struct xfs_mount *mp, xfs_buftarg_t *btp, extern void xfs_ioerror_alert(char *func, struct xfs_mount *mp, xfs_buf_t *bp, xfs_daddr_t blkno); -/* - * Prototypes for functions in xfs_vnodeops.c. - */ -extern int xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip, - int flags); - #endif /* __XFS_RW_H__ */ diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index c4eca5e..1dd7068 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -716,7 +716,7 @@ xfs_fsync( * when the link count isn't zero and by xfs_dm_punch_hole() when * punching a hole to EOF. */ -int +STATIC int xfs_free_eofblocks( xfs_mount_t *mp, xfs_inode_t *ip, -- cgit v0.10.2 From ab8b9baac3f48fb3fc3d47790950c0eec134e678 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 2 Jul 2009 21:35:43 -0500 Subject: un-static xfs_read_agf CONFIG_XFS_DEBUG builds still need xfs_read_agf to be non-static, oops. Signed-off-by: Eric Sandeen Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h index af3cfeb..f24b50b 100644 --- a/fs/xfs/xfs_ag.h +++ b/fs/xfs/xfs_ag.h @@ -91,6 +91,9 @@ typedef struct xfs_agf { #define XFS_AGF_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp)) #define XFS_BUF_TO_AGF(bp) ((xfs_agf_t *)XFS_BUF_PTR(bp)) +extern int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_agnumber_t agno, int flags, struct xfs_buf **bpp); + /* * Size of the unlinked inode hash table in the agi. */ diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 6316004..2cf944e 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2248,7 +2248,7 @@ xfs_alloc_put_freelist( /* * Read in the allocation group header (free/alloc section). */ -STATIC int /* error */ +int /* error */ xfs_read_agf( struct xfs_mount *mp, /* mount point structure */ struct xfs_trans *tp, /* transaction pointer */ -- cgit v0.10.2 From b56063453881a6d94cf5718c6769de6e35e67753 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sun, 5 Jul 2009 12:23:35 -0500 Subject: xfs: remove XFS_INO64_OFFSET Commit a19d9f887d81106d52cacbc9930207b487e07e0e removed the ino64 option but left the XFS_INO64_OFFSET define it used in place - just remove it. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_inum.h b/fs/xfs/xfs_inum.h index 7a28191..b8e4ee4 100644 --- a/fs/xfs/xfs_inum.h +++ b/fs/xfs/xfs_inum.h @@ -72,7 +72,6 @@ struct xfs_mount; #if XFS_BIG_INUMS #define XFS_MAXINUMBER ((xfs_ino_t)((1ULL << 56) - 1ULL)) -#define XFS_INO64_OFFSET ((xfs_ino_t)(1ULL << 32)) #else #define XFS_MAXINUMBER ((xfs_ino_t)((1ULL << 32) - 1ULL)) #endif -- cgit v0.10.2 From 5c04c78afba4805846519f29f0b55ac8759e0d48 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sun, 26 Jul 2009 21:52:01 -0500 Subject: xfs: reduce bmv_count in xfs_vn_fiemap commit 6321e3ed2acf3ee9643cdd403e1c88605d7944ba caused the full bmv_count's worth of getbmapx structures to get allocated; telling it to do MAXEXTNUM was a bit insane, resulting in ENOMEM every time. Chop it down to something reasonable, the number of slots in the caller's input buffer. If this is too large the caller may get ENOMEM but the reason should not be a mystery, and they can try again with something smaller. We add 1 to the value because in the normal getbmap world, bmv_count includes the header and xfs_getbmap does: nex = bmv->bmv_count - 1; if (nex <= 0) return XFS_ERROR(EINVAL); Signed-off-by: Eric Sandeen Reviewed-by: Olaf Weber Reviewed-by: Christoph Hellwig Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 58973bb..8070b34 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -680,8 +680,8 @@ xfs_vn_fiemap( else bm.bmv_length = BTOBB(length); - /* our formatter will tell xfs_getbmap when to stop. */ - bm.bmv_count = MAXEXTNUM; + /* We add one because in getbmap world count includes the header */ + bm.bmv_count = fieinfo->fi_extents_max + 1; bm.bmv_iflags = BMV_IF_PREALLOC; if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) bm.bmv_iflags |= BMV_IF_ATTRFORK; -- cgit v0.10.2 From ede58517ca93277547a0d054728c352618212d85 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 27 Jul 2009 18:15:25 +0200 Subject: fs/xfs: Correct redundant test bp was tested for NULL a few lines before, followed by a return, and there is no intervening modification of its value. A simplified version of the semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @r exists@ local idexpression x; expression E; position p1,p2; @@ if (x == NULL || ...) { ... when forall return ...; } ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\) ( *x == NULL | *x != NULL ) // Signed-off-by: Julia Lawall Acked-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 8ee2f8c..218829e 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -307,7 +307,7 @@ xfs_trans_read_buf( return (flags & XFS_BUF_TRYLOCK) ? EAGAIN : XFS_ERROR(ENOMEM); - if ((bp != NULL) && (XFS_BUF_GETERROR(bp) != 0)) { + if (XFS_BUF_GETERROR(bp) != 0) { xfs_ioerror_alert("xfs_trans_read_buf", mp, bp, blkno); error = XFS_BUF_GETERROR(bp); @@ -315,7 +315,7 @@ xfs_trans_read_buf( return error; } #ifdef DEBUG - if (xfs_do_error && (bp != NULL)) { + if (xfs_do_error) { if (xfs_error_target == target) { if (((xfs_req_num++) % xfs_error_mod) == 0) { xfs_buf_relse(bp); -- cgit v0.10.2 From a81655ae5a9da16a08ba14637dc6c10217e57492 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Fri, 31 Jul 2009 00:02:17 -0500 Subject: xfs: bump up nr_to_write in xfs_vm_writepage VM calculation for nr_to_write seems off. Bump it way up, this gets simple streaming writes zippy again. To be reviewed again after Jens' writeback changes. Signed-off-by: Christoph Hellwig Signed-off-by: Eric Sandeen Cc: Chris Mason Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 7ec89fc..aecf251 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -1268,6 +1268,14 @@ xfs_vm_writepage( if (!page_has_buffers(page)) create_empty_buffers(page, 1 << inode->i_blkbits, 0); + + /* + * VM calculation for nr_to_write seems off. Bump it way + * up, this gets simple streaming writes zippy again. + * To be reviewed again after Jens' writeback changes. + */ + wbc->nr_to_write *= 4; + /* * Convert delayed allocate, unwritten or unmapped space * to real space and flush out to disk. -- cgit v0.10.2 From efe1f30e8f05a3836dfcf6302774707b3b47193f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:53 -0400 Subject: xfs: avoid memory allocation under m_peraglock in growfs code Allocate the memory for the larger m_perag array before taking the per-AG lock as the per-AG lock can be taken under the i_lock which can be taken from reclaim context. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index cbd451b..2d0b3e1 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -167,17 +167,25 @@ xfs_growfs_data_private( new = nb - mp->m_sb.sb_dblocks; oagcount = mp->m_sb.sb_agcount; if (nagcount > oagcount) { + void *new_perag, *old_perag; + xfs_filestream_flush(mp); + + new_perag = kmem_zalloc(sizeof(xfs_perag_t) * nagcount, + KM_MAYFAIL); + if (!new_perag) + return XFS_ERROR(ENOMEM); + down_write(&mp->m_peraglock); - mp->m_perag = kmem_realloc(mp->m_perag, - sizeof(xfs_perag_t) * nagcount, - sizeof(xfs_perag_t) * oagcount, - KM_SLEEP); - memset(&mp->m_perag[oagcount], 0, - (nagcount - oagcount) * sizeof(xfs_perag_t)); + memcpy(new_perag, mp->m_perag, sizeof(xfs_perag_t) * oagcount); + old_perag = mp->m_perag; + mp->m_perag = new_perag; + mp->m_flags |= XFS_MOUNT_32BITINODES; nagimax = xfs_initialize_perag(mp, nagcount); up_write(&mp->m_peraglock); + + kmem_free(old_perag); } tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); tp->t_flags |= XFS_TRANS_RESERVE; -- cgit v0.10.2 From 1ec2b8a777d6ac5464a836b3c5520b1a5190194c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:54 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_getbmap xfs_getbmap allocates memory with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 9759724..8971fb0 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -6009,7 +6009,7 @@ xfs_getbmap( */ error = ENOMEM; subnex = 16; - map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL); + map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL | KM_NOFS); if (!map) goto out_unlock_ilock; -- cgit v0.10.2 From 0043dd88af762d3a9154317d351400b5b941ec8d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:55 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_da_state_alloc xfs_da_state_alloc is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c index 9ff6e57..bd0bb6d 100644 --- a/fs/xfs/xfs_da_btree.c +++ b/fs/xfs/xfs_da_btree.c @@ -2201,7 +2201,7 @@ kmem_zone_t *xfs_dabuf_zone; /* dabuf zone */ xfs_da_state_t * xfs_da_state_alloc(void) { - return kmem_zone_zalloc(xfs_da_state_zone, KM_SLEEP); + return kmem_zone_zalloc(xfs_da_state_zone, KM_NOFS); } /* -- cgit v0.10.2 From eeb6f67ba1176a141b6802b2ec8505835482f631 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:56 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make i_lock is taken in the reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c index bd0bb6d..2847bbc 100644 --- a/fs/xfs/xfs_da_btree.c +++ b/fs/xfs/xfs_da_btree.c @@ -2261,9 +2261,9 @@ xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra) int off; if (nbuf == 1) - dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_SLEEP); + dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_NOFS); else - dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_SLEEP); + dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_NOFS); dabuf->dirty = 0; #ifdef XFS_DABUF_DEBUG dabuf->ra = ra; -- cgit v0.10.2 From ea78cd5e6b6ebe123641382d5040252d19829332 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:57 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_dir_cilookup_result xfs_dir_cilookup_result is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c index c657bec..bb1d58eb 100644 --- a/fs/xfs/xfs_dir2.c +++ b/fs/xfs/xfs_dir2.c @@ -256,7 +256,7 @@ xfs_dir_cilookup_result( !(args->op_flags & XFS_DA_OP_CILOOKUP)) return EEXIST; - args->value = kmem_alloc(len, KM_MAYFAIL); + args->value = kmem_alloc(len, KM_NOFS | KM_MAYFAIL); if (!args->value) return ENOMEM; -- cgit v0.10.2 From 837273b8a150a3761467573c5eb477791cf19268 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:58 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_buf_associate_memory xfs_buf_associate_memory is used for setting up the spare buffer for the log wrap case in xlog_sync which can happen under i_lock when called from xfs_fsync. The i_lock mutex is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. There are a couple more uses of xfs_buf_associate_memory in the log recovery code that are also affected by this, but I'd rather keep the code simple than passing on a gfp_mask argument. Longer term we should just stop requiring the memoery allocation in xlog_sync by some smaller rework of the buffer layer. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index e28800a..da3b666 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -770,7 +770,7 @@ xfs_buf_associate_memory( bp->b_pages = NULL; bp->b_addr = mem; - rval = _xfs_buf_get_pages(bp, page_count, 0); + rval = _xfs_buf_get_pages(bp, page_count, XBF_DONT_BLOCK); if (rval) return rval; -- cgit v0.10.2 From f56ebd66df411446030e2cc820554c6ce4ba0836 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:14:59 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_set xfs_attr_rmtval_set is always called with i_lock held, and i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c index db15feb..bfb5837 100644 --- a/fs/xfs/xfs_attr.c +++ b/fs/xfs/xfs_attr.c @@ -2141,8 +2141,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args) dblkno = XFS_FSB_TO_DADDR(mp, map.br_startblock), blkcnt = XFS_FSB_TO_BB(mp, map.br_blockcount); - bp = xfs_buf_get_flags(mp->m_ddev_targp, dblkno, - blkcnt, XFS_BUF_LOCK); + bp = xfs_buf_get_flags(mp->m_ddev_targp, dblkno, blkcnt, + XFS_BUF_LOCK | XBF_DONT_BLOCK); ASSERT(bp); ASSERT(!XFS_BUF_GETERROR(bp)); -- cgit v0.10.2 From 5a25f1abb26f5ab7c6c72fe0b3807c137ee484bb Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:15:00 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_readlink_bmap xfs_readlink_bmap is called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 1dd7068..ceecafd 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -538,7 +538,9 @@ xfs_readlink_bmap( d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock); byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount); - bp = xfs_buf_read(mp->m_ddev_targp, d, BTOBB(byte_cnt), 0); + bp = xfs_buf_read_flags(mp->m_ddev_targp, d, BTOBB(byte_cnt), + XBF_LOCK | XBF_MAPPED | + XBF_DONT_BLOCK); error = XFS_BUF_GETERROR(bp); if (error) { xfs_ioerror_alert("xfs_readlink", -- cgit v0.10.2 From 7509ee34a365c041718d0b676e5ee255b58b5dda Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 18 Jul 2009 18:15:01 -0400 Subject: xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get xfs_attr_rmtval_get is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c index bfb5837..4ece190 100644 --- a/fs/xfs/xfs_attr.c +++ b/fs/xfs/xfs_attr.c @@ -2010,7 +2010,9 @@ xfs_attr_rmtval_get(xfs_da_args_t *args) dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock); blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount); error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno, - blkcnt, XFS_BUF_LOCK, &bp); + blkcnt, + XFS_BUF_LOCK | XBF_DONT_BLOCK, + &bp); if (error) return(error); -- cgit v0.10.2 From 583e0e41ee29478e2147aeffeb772657f8db767a Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Mon, 20 Jul 2009 10:52:15 -0500 Subject: use XFS_CORRUPTION_ERROR in xfs_btree_check_sblock In Red Hat Bug 512552 - Can't write to XFS mount during raid5 resync a user ran into corruption while resyncing a raid, and we failed a consistency test, but didn't get much more info; it'd be nice to call XFS_CORRUPTION_ERROR here so we can see the buffer contents. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index cde5a26..52b5f14 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -120,8 +120,8 @@ xfs_btree_check_sblock( XFS_RANDOM_BTREE_CHECK_SBLOCK))) { if (bp) xfs_buftrace("SBTREE ERROR", bp); - XFS_ERROR_REPORT("xfs_btree_check_sblock", XFS_ERRLEVEL_LOW, - cur->bc_mp); + XFS_CORRUPTION_ERROR("xfs_btree_check_sblock", + XFS_ERRLEVEL_LOW, cur->bc_mp, block); return XFS_ERROR(EFSCORRUPTED); } return 0; -- cgit v0.10.2 From 16715dbe64ccac265010ab8b60848d212d002521 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 10 Aug 2009 11:32:18 -0300 Subject: xfs: check for dinode realtime flag corruption Ramon tested XFS with a modified version of fsfuzzer and hit a NULL pointer dereference in __xfs_get_blocks due to the RT device target pointer being NULL. To fix this reject inode with the realtime bit set on a a filesystem without an RT subvolume during inode read. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen Reviewed-by: Felix Blyakher Reported-by: Ramon de Carvalho Valle Tested-by: Ramon de Carvalho Valle Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 2dcb3d7..c1dc7ef 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -343,6 +343,16 @@ xfs_iformat( return XFS_ERROR(EFSCORRUPTED); } + if (unlikely((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) && + !ip->i_mount->m_rtdev_targp)) { + xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount, + "corrupt dinode %Lu, has realtime flag set.", + ip->i_ino); + XFS_CORRUPTION_ERROR("xfs_iformat(realtime)", + XFS_ERRLEVEL_LOW, ip->i_mount, dip); + return XFS_ERROR(EFSCORRUPTED); + } + switch (ip->i_d.di_mode & S_IFMT) { case S_IFIFO: case S_IFCHR: -- cgit v0.10.2 From 79dd43bb85d64ba14a781f940c858d7bbe8c9a6d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 10 Aug 2009 11:32:44 -0300 Subject: xfs: fix spin_is_locked assert on uni-processor builds Without SMP or preemption spin_is_locked always returns false, so we can't do an assert with it. Instead use assert_spin_locked, which does the right thing on all builds. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Sandeen Reported-by: Johannes Engel Tested-by: Johannes Engel Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 3750f04..9dbdff3 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -3180,7 +3180,7 @@ try_again: STATIC void xlog_state_want_sync(xlog_t *log, xlog_in_core_t *iclog) { - ASSERT(spin_is_locked(&log->l_icloglock)); + assert_spin_locked(&log->l_icloglock); if (iclog->ic_state == XLOG_STATE_ACTIVE) { xlog_state_switch_iclogs(log, iclog, 0); -- cgit v0.10.2 From a022fe09700365c51d1f55884bca9754eb96a802 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 16 Aug 2009 20:36:34 -0400 Subject: xfs: fix locking in xfs_iget_cache_hit The locking in xfs_iget_cache_hit currently has numerous problems: - we clear the reclaim tag without i_flags_lock which protects modifications to it - we call inode_init_always which can sleep with pag_ici_lock held (this is oss.sgi.com BZ #819) - we acquire and drop i_flags_lock a lot and thus provide no consistency between the various flags we set/clear under it This patch fixes all that with a major revamp of the locking in the function. The new version acquires i_flags_lock early and only drops it once we need to call into inode_init_always or before calling xfs_ilock. This patch fixes a bug seen in the wild where we race modifying the reclaim tag. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Reviewed-by: Eric Sandeen Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index fbf3e02..320be6a 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -708,6 +708,16 @@ xfs_reclaim_inode( return 0; } +void +__xfs_inode_set_reclaim_tag( + struct xfs_perag *pag, + struct xfs_inode *ip) +{ + radix_tree_tag_set(&pag->pag_ici_root, + XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino), + XFS_ICI_RECLAIM_TAG); +} + /* * We set the inode flag atomically with the radix tree tag. * Once we get tag lookups on the radix tree, this inode flag @@ -722,8 +732,7 @@ xfs_inode_set_reclaim_tag( read_lock(&pag->pag_ici_lock); spin_lock(&ip->i_flags_lock); - radix_tree_tag_set(&pag->pag_ici_root, - XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG); + __xfs_inode_set_reclaim_tag(pag, ip); __xfs_iflags_set(ip, XFS_IRECLAIMABLE); spin_unlock(&ip->i_flags_lock); read_unlock(&pag->pag_ici_lock); diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h index 23e7e7e..27920eb 100644 --- a/fs/xfs/linux-2.6/xfs_sync.h +++ b/fs/xfs/linux-2.6/xfs_sync.h @@ -48,6 +48,7 @@ int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode); int xfs_reclaim_inodes(struct xfs_mount *mp, int mode); void xfs_inode_set_reclaim_tag(struct xfs_inode *ip); +void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip); void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag, struct xfs_inode *ip); diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index 76c540f..91adfab 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -134,80 +134,82 @@ xfs_iget_cache_hit( int flags, int lock_flags) __releases(pag->pag_ici_lock) { + struct inode *inode = VFS_I(ip); struct xfs_mount *mp = ip->i_mount; - int error = EAGAIN; + int error; + + spin_lock(&ip->i_flags_lock); /* - * If INEW is set this inode is being set up - * If IRECLAIM is set this inode is being torn down - * Pause and try again. + * If we are racing with another cache hit that is currently + * instantiating this inode or currently recycling it out of + * reclaimabe state, wait for the initialisation to complete + * before continuing. + * + * XXX(hch): eventually we should do something equivalent to + * wait_on_inode to wait for these flags to be cleared + * instead of polling for it. */ - if (xfs_iflags_test(ip, (XFS_INEW|XFS_IRECLAIM))) { + if (ip->i_flags & (XFS_INEW|XFS_IRECLAIM)) { XFS_STATS_INC(xs_ig_frecycle); + error = EAGAIN; goto out_error; } - /* If IRECLAIMABLE is set, we've torn down the vfs inode part */ - if (xfs_iflags_test(ip, XFS_IRECLAIMABLE)) { - - /* - * If lookup is racing with unlink, then we should return an - * error immediately so we don't remove it from the reclaim - * list and potentially leak the inode. - */ - if ((ip->i_d.di_mode == 0) && !(flags & XFS_IGET_CREATE)) { - error = ENOENT; - goto out_error; - } + /* + * If lookup is racing with unlink return an error immediately. + */ + if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) { + error = ENOENT; + goto out_error; + } + /* + * If IRECLAIMABLE is set, we've torn down the VFS inode already. + * Need to carefully get it back into useable state. + */ + if (ip->i_flags & XFS_IRECLAIMABLE) { xfs_itrace_exit_tag(ip, "xfs_iget.alloc"); /* - * We need to re-initialise the VFS inode as it has been - * 'freed' by the VFS. Do this here so we can deal with - * errors cleanly, then tag it so it can be set up correctly - * later. + * We need to set XFS_INEW atomically with clearing the + * reclaimable tag so that we do have an indicator of the + * inode still being initialized. */ - if (!inode_init_always(mp->m_super, VFS_I(ip))) { - error = ENOMEM; - goto out_error; - } + ip->i_flags |= XFS_INEW; + ip->i_flags &= ~XFS_IRECLAIMABLE; + __xfs_inode_clear_reclaim_tag(mp, pag, ip); - /* - * We must set the XFS_INEW flag before clearing the - * XFS_IRECLAIMABLE flag so that if a racing lookup does - * not find the XFS_IRECLAIMABLE above but has the igrab() - * below succeed we can safely check XFS_INEW to detect - * that this inode is still being initialised. - */ - xfs_iflags_set(ip, XFS_INEW); - xfs_iflags_clear(ip, XFS_IRECLAIMABLE); + spin_unlock(&ip->i_flags_lock); + read_unlock(&pag->pag_ici_lock); - /* clear the radix tree reclaim flag as well. */ - __xfs_inode_clear_reclaim_tag(mp, pag, ip); - } else if (!igrab(VFS_I(ip))) { + error = -inode_init_always(mp->m_super, inode); + if (error) { + /* + * Re-initializing the inode failed, and we are in deep + * trouble. Try to re-add it to the reclaim list. + */ + read_lock(&pag->pag_ici_lock); + spin_lock(&ip->i_flags_lock); + + ip->i_flags &= ~XFS_INEW; + ip->i_flags |= XFS_IRECLAIMABLE; + __xfs_inode_set_reclaim_tag(pag, ip); + goto out_error; + } + inode->i_state = I_LOCK|I_NEW; + } else { /* If the VFS inode is being torn down, pause and try again. */ - XFS_STATS_INC(xs_ig_frecycle); - goto out_error; - } else if (xfs_iflags_test(ip, XFS_INEW)) { - /* - * We are racing with another cache hit that is - * currently recycling this inode out of the XFS_IRECLAIMABLE - * state. Wait for the initialisation to complete before - * continuing. - */ - wait_on_inode(VFS_I(ip)); - } + if (!igrab(inode)) { + error = EAGAIN; + goto out_error; + } - if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) { - error = ENOENT; - iput(VFS_I(ip)); - goto out_error; + /* We've got a live one. */ + spin_unlock(&ip->i_flags_lock); + read_unlock(&pag->pag_ici_lock); } - /* We've got a live one. */ - read_unlock(&pag->pag_ici_lock); - if (lock_flags != 0) xfs_ilock(ip, lock_flags); @@ -217,6 +219,7 @@ xfs_iget_cache_hit( return 0; out_error: + spin_unlock(&ip->i_flags_lock); read_unlock(&pag->pag_ici_lock); return error; } -- cgit v0.10.2 From d96f8f891f69ac1dc8c7bd82e27525de220c04e1 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 2 Jul 2009 00:09:33 -0500 Subject: xfs: add more statics & drop some unused functions A lot more functions could be made static, but they need forward declarations; this does some easy ones, and also found a few unused functions in the process. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index a220d36..c709ed6 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -687,7 +687,7 @@ xfs_barrier_test( return error; } -void +STATIC void xfs_mountfs_check_barriers(xfs_mount_t *mp) { int error; diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index 98ef624..320be6a 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -749,21 +749,6 @@ __xfs_inode_clear_reclaim_tag( XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG); } -void -xfs_inode_clear_reclaim_tag( - xfs_inode_t *ip) -{ - xfs_mount_t *mp = ip->i_mount; - xfs_perag_t *pag = xfs_get_perag(mp, ip->i_ino); - - read_lock(&pag->pag_ici_lock); - spin_lock(&ip->i_flags_lock); - __xfs_inode_clear_reclaim_tag(mp, pag, ip); - spin_unlock(&ip->i_flags_lock); - read_unlock(&pag->pag_ici_lock); - xfs_put_perag(mp, pag); -} - STATIC int xfs_reclaim_inode_now( struct xfs_inode *ip, diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h index 5912060..27920eb 100644 --- a/fs/xfs/linux-2.6/xfs_sync.h +++ b/fs/xfs/linux-2.6/xfs_sync.h @@ -49,7 +49,6 @@ int xfs_reclaim_inodes(struct xfs_mount *mp, int mode); void xfs_inode_set_reclaim_tag(struct xfs_inode *ip); void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip); -void xfs_inode_clear_reclaim_tag(struct xfs_inode *ip); void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag, struct xfs_inode *ip); diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h index f24b50b..af3cfeb 100644 --- a/fs/xfs/xfs_ag.h +++ b/fs/xfs/xfs_ag.h @@ -91,9 +91,6 @@ typedef struct xfs_agf { #define XFS_AGF_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp)) #define XFS_BUF_TO_AGF(bp) ((xfs_agf_t *)XFS_BUF_PTR(bp)) -extern int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp, - xfs_agnumber_t agno, int flags, struct xfs_buf **bpp); - /* * Size of the unlinked inode hash table in the agi. */ diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 2cf944e..6316004 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2248,7 +2248,7 @@ xfs_alloc_put_freelist( /* * Read in the allocation group header (free/alloc section). */ -int /* error */ +STATIC int /* error */ xfs_read_agf( struct xfs_mount *mp, /* mount point structure */ struct xfs_trans *tp, /* transaction pointer */ diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 8ee5b5a..8971fb0 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -3713,7 +3713,7 @@ done: * entry (null if none). Else, *lastxp will be set to the index * of the found entry; *gotp will contain the entry. */ -xfs_bmbt_rec_host_t * /* pointer to found extent entry */ +STATIC xfs_bmbt_rec_host_t * /* pointer to found extent entry */ xfs_bmap_search_multi_extents( xfs_ifork_t *ifp, /* inode fork pointer */ xfs_fileoff_t bno, /* block number searched for */ diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index 1b8ff92..56f62d2 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -392,17 +392,6 @@ xfs_bmap_count_blocks( int whichfork, int *count); -/* - * Search the extent records for the entry containing block bno. - * If bno lies in a hole, point to the next entry. If bno lies - * past eof, *eofp will be set, and *prevp will contain the last - * entry (null if none). Else, *lastxp will be set to the index - * of the found entry; *gotp will contain the entry. - */ -xfs_bmbt_rec_host_t * -xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *, - xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *); - #endif /* __KERNEL__ */ #endif /* __XFS_BMAP_H__ */ diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c index 5c1ade0..eb7b702 100644 --- a/fs/xfs/xfs_bmap_btree.c +++ b/fs/xfs/xfs_bmap_btree.c @@ -202,16 +202,6 @@ xfs_bmbt_get_state( ext_flag); } -/* Endian flipping versions of the bmbt extraction functions */ -void -xfs_bmbt_disk_get_all( - xfs_bmbt_rec_t *r, - xfs_bmbt_irec_t *s) -{ - __xfs_bmbt_get_all(get_unaligned_be64(&r->l0), - get_unaligned_be64(&r->l1), s); -} - /* * Extract the blockcount field from an on disk bmap extent record. */ @@ -816,6 +806,16 @@ xfs_bmbt_trace_key( *l1 = 0; } +/* Endian flipping versions of the bmbt extraction functions */ +STATIC void +xfs_bmbt_disk_get_all( + xfs_bmbt_rec_t *r, + xfs_bmbt_irec_t *s) +{ + __xfs_bmbt_get_all(get_unaligned_be64(&r->l0), + get_unaligned_be64(&r->l1), s); +} + STATIC void xfs_bmbt_trace_record( struct xfs_btree_cur *cur, diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h index 0e8df00..5549d49 100644 --- a/fs/xfs/xfs_bmap_btree.h +++ b/fs/xfs/xfs_bmap_btree.h @@ -220,7 +220,6 @@ extern xfs_fsblock_t xfs_bmbt_get_startblock(xfs_bmbt_rec_host_t *r); extern xfs_fileoff_t xfs_bmbt_get_startoff(xfs_bmbt_rec_host_t *r); extern xfs_exntst_t xfs_bmbt_get_state(xfs_bmbt_rec_host_t *r); -extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r); extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r); diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c index 2671738..52b5f14 100644 --- a/fs/xfs/xfs_btree.c +++ b/fs/xfs/xfs_btree.c @@ -646,46 +646,6 @@ xfs_btree_read_bufl( } /* - * Get a buffer for the block, return it read in. - * Short-form addressing. - */ -int /* error */ -xfs_btree_read_bufs( - xfs_mount_t *mp, /* file system mount point */ - xfs_trans_t *tp, /* transaction pointer */ - xfs_agnumber_t agno, /* allocation group number */ - xfs_agblock_t agbno, /* allocation group block number */ - uint lock, /* lock flags for read_buf */ - xfs_buf_t **bpp, /* buffer for agno/agbno */ - int refval) /* ref count value for buffer */ -{ - xfs_buf_t *bp; /* return value */ - xfs_daddr_t d; /* real disk block address */ - int error; - - ASSERT(agno != NULLAGNUMBER); - ASSERT(agbno != NULLAGBLOCK); - d = XFS_AGB_TO_DADDR(mp, agno, agbno); - if ((error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d, - mp->m_bsize, lock, &bp))) { - return error; - } - ASSERT(!bp || !XFS_BUF_GETERROR(bp)); - if (bp != NULL) { - switch (refval) { - case XFS_ALLOC_BTREE_REF: - XFS_BUF_SET_VTYPE_REF(bp, B_FS_MAP, refval); - break; - case XFS_INO_BTREE_REF: - XFS_BUF_SET_VTYPE_REF(bp, B_FS_INOMAP, refval); - break; - } - } - *bpp = bp; - return 0; -} - -/* * Read-ahead the block, don't wait for it, don't return a buffer. * Long-form addressing. */ @@ -2951,7 +2911,7 @@ error0: * inode we have to copy the single block it was pointing to into the * inode. */ -int +STATIC int xfs_btree_kill_iroot( struct xfs_btree_cur *cur) { diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h index 4f852b7..7fa0706 100644 --- a/fs/xfs/xfs_btree.h +++ b/fs/xfs/xfs_btree.h @@ -379,20 +379,6 @@ xfs_btree_read_bufl( int refval);/* ref count value for buffer */ /* - * Get a buffer for the block, return it read in. - * Short-form addressing. - */ -int /* error */ -xfs_btree_read_bufs( - struct xfs_mount *mp, /* file system mount point */ - struct xfs_trans *tp, /* transaction pointer */ - xfs_agnumber_t agno, /* allocation group number */ - xfs_agblock_t agbno, /* allocation group block number */ - uint lock, /* lock flags for read_buf */ - struct xfs_buf **bpp, /* buffer for agno/agbno */ - int refval);/* ref count value for buffer */ - -/* * Read-ahead the block, don't wait for it, don't return a buffer. * Long-form addressing. */ @@ -432,7 +418,6 @@ int xfs_btree_decrement(struct xfs_btree_cur *, int, int *); int xfs_btree_lookup(struct xfs_btree_cur *, xfs_lookup_t, int *); int xfs_btree_update(struct xfs_btree_cur *, union xfs_btree_rec *); int xfs_btree_new_iroot(struct xfs_btree_cur *, int *, int *); -int xfs_btree_kill_iroot(struct xfs_btree_cur *); int xfs_btree_insert(struct xfs_btree_cur *, int *); int xfs_btree_delete(struct xfs_btree_cur *, int *); int xfs_btree_get_rec(struct xfs_btree_cur *, union xfs_btree_rec **, int *); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index da428b3..c1dc7ef 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -651,7 +651,7 @@ xfs_iformat_btree( return 0; } -void +STATIC void xfs_dinode_from_disk( xfs_icdinode_t *to, xfs_dinode_t *from) @@ -1247,7 +1247,7 @@ xfs_isize_check( * In that case the pages will still be in memory, but the inode size * will never have been updated. */ -xfs_fsize_t +STATIC xfs_fsize_t xfs_file_last_byte( xfs_inode_t *ip) { @@ -3837,7 +3837,7 @@ xfs_iext_inline_to_direct( /* * Resize an extent indirection array to new_size bytes. */ -void +STATIC void xfs_iext_realloc_indirect( xfs_ifork_t *ifp, /* inode fork pointer */ int new_size) /* new indirection array size */ @@ -3862,7 +3862,7 @@ xfs_iext_realloc_indirect( /* * Switch from indirection array to linear (direct) extent allocations. */ -void +STATIC void xfs_iext_indirect_to_direct( xfs_ifork_t *ifp) /* inode fork pointer */ { diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 65f24a3..00e8505 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -504,7 +504,6 @@ void xfs_ipin(xfs_inode_t *); void xfs_iunpin(xfs_inode_t *); int xfs_iflush(xfs_inode_t *, uint); void xfs_ichgtime(xfs_inode_t *, int); -xfs_fsize_t xfs_file_last_byte(xfs_inode_t *); void xfs_lock_inodes(xfs_inode_t **, int, uint); void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint); @@ -572,8 +571,6 @@ int xfs_itobp(struct xfs_mount *, struct xfs_trans *, struct xfs_buf **, uint); int xfs_iread(struct xfs_mount *, struct xfs_trans *, struct xfs_inode *, xfs_daddr_t, uint); -void xfs_dinode_from_disk(struct xfs_icdinode *, - struct xfs_dinode *); void xfs_dinode_to_disk(struct xfs_dinode *, struct xfs_icdinode *); void xfs_idestroy_fork(struct xfs_inode *, int); @@ -592,8 +589,6 @@ void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int); void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int); void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int); void xfs_iext_realloc_direct(xfs_ifork_t *, int); -void xfs_iext_realloc_indirect(xfs_ifork_t *, int); -void xfs_iext_indirect_to_direct(xfs_ifork_t *); void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t); void xfs_iext_inline_to_direct(xfs_ifork_t *, int); void xfs_iext_destroy(xfs_ifork_t *); diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index aeb2d22..c471122 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -39,7 +39,7 @@ #include "xfs_error.h" #include "xfs_btree.h" -int +STATIC int xfs_internal_inum( xfs_mount_t *mp, xfs_ino_t ino) diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index 1fb04e7..20792bf 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -99,11 +99,6 @@ xfs_bulkstat_one( void *dibuff, int *stat); -int -xfs_internal_inum( - xfs_mount_t *mp, - xfs_ino_t ino); - typedef int (*inumbers_fmt_pf)( void __user *ubuffer, /* buffer to write to */ const xfs_inogrp_t *buffer, /* buffer to read from */ diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index bcad5f4..679c7c4 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -451,8 +451,6 @@ extern int xlog_find_tail(xlog_t *log, extern int xlog_recover(xlog_t *log); extern int xlog_recover_finish(xlog_t *log); extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int); -extern void xlog_recover_process_iunlinks(xlog_t *log); - extern struct xfs_buf *xlog_get_bp(xlog_t *, int); extern void xlog_put_bp(struct xfs_buf *); diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 47da2fb..1099395 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3263,7 +3263,7 @@ xlog_recover_process_one_iunlink( * freeing of the inode and its removal from the list must be * atomic. */ -void +STATIC void xlog_recover_process_iunlinks( xlog_t *log) { diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 5c6f092..8b6c9e8 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1568,7 +1568,7 @@ xfs_mod_sb(xfs_trans_t *tp, __int64_t fields) * * The m_sb_lock must be held when this routine is called. */ -int +STATIC int xfs_mod_incore_sb_unlocked( xfs_mount_t *mp, xfs_sb_field_t field, diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index a512238..a6c023b 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -414,13 +414,10 @@ typedef struct xfs_mod_sb { extern int xfs_log_sbcount(xfs_mount_t *, uint); extern int xfs_mountfs(xfs_mount_t *mp); -extern void xfs_mountfs_check_barriers(xfs_mount_t *mp); extern void xfs_unmountfs(xfs_mount_t *); extern int xfs_unmountfs_writesb(xfs_mount_t *); extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); -extern int xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t, - int64_t, int); extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, uint, int); extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); diff --git a/fs/xfs/xfs_mru_cache.c b/fs/xfs/xfs_mru_cache.c index afee7eb..4b0613d 100644 --- a/fs/xfs/xfs_mru_cache.c +++ b/fs/xfs/xfs_mru_cache.c @@ -564,35 +564,6 @@ xfs_mru_cache_lookup( } /* - * To look up an element using its key, but leave its location in the internal - * lists alone, call xfs_mru_cache_peek(). If the element isn't found, this - * function returns NULL. - * - * See the comments above the declaration of the xfs_mru_cache_lookup() function - * for important locking information pertaining to this call. - */ -void * -xfs_mru_cache_peek( - xfs_mru_cache_t *mru, - unsigned long key) -{ - xfs_mru_cache_elem_t *elem; - - ASSERT(mru && mru->lists); - if (!mru || !mru->lists) - return NULL; - - spin_lock(&mru->lock); - elem = radix_tree_lookup(&mru->store, key); - if (!elem) - spin_unlock(&mru->lock); - else - __release(mru_lock); /* help sparse not be stupid */ - - return elem ? elem->value : NULL; -} - -/* * To release the internal data structure spinlock after having performed an * xfs_mru_cache_lookup() or an xfs_mru_cache_peek(), call xfs_mru_cache_done() * with the data store pointer. diff --git a/fs/xfs/xfs_mru_cache.h b/fs/xfs/xfs_mru_cache.h index dd58ea1..5d439f3 100644 --- a/fs/xfs/xfs_mru_cache.h +++ b/fs/xfs/xfs_mru_cache.h @@ -49,7 +49,6 @@ int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key, void * xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key); void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key); void *xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key); -void *xfs_mru_cache_peek(struct xfs_mru_cache *mru, unsigned long key); void xfs_mru_cache_done(struct xfs_mru_cache *mru); #endif /* __XFS_MRU_CACHE_H__ */ diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h index f76c003..ae65f0d 100644 --- a/fs/xfs/xfs_rw.h +++ b/fs/xfs/xfs_rw.h @@ -78,10 +78,4 @@ extern int xfs_read_buf(struct xfs_mount *mp, xfs_buftarg_t *btp, extern void xfs_ioerror_alert(char *func, struct xfs_mount *mp, xfs_buf_t *bp, xfs_daddr_t blkno); -/* - * Prototypes for functions in xfs_vnodeops.c. - */ -extern int xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip, - int flags); - #endif /* __XFS_RW_H__ */ diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 492d75b..ceecafd 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -718,7 +718,7 @@ xfs_fsync( * when the link count isn't zero and by xfs_dm_punch_hole() when * punching a hole to EOF. */ -int +STATIC int xfs_free_eofblocks( xfs_mount_t *mp, xfs_inode_t *ip, -- cgit v0.10.2 From fef1111ecdd2b5198afe91537a5cd4c6be80a255 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Thu, 2 Jul 2009 21:35:43 -0500 Subject: un-static xfs_read_agf CONFIG_XFS_DEBUG builds still need xfs_read_agf to be non-static, oops. Signed-off-by: Eric Sandeen Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h index af3cfeb..f24b50b 100644 --- a/fs/xfs/xfs_ag.h +++ b/fs/xfs/xfs_ag.h @@ -91,6 +91,9 @@ typedef struct xfs_agf { #define XFS_AGF_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_AGF_DADDR(mp)) #define XFS_BUF_TO_AGF(bp) ((xfs_agf_t *)XFS_BUF_PTR(bp)) +extern int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_agnumber_t agno, int flags, struct xfs_buf **bpp); + /* * Size of the unlinked inode hash table in the agi. */ diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 6316004..2cf944e 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2248,7 +2248,7 @@ xfs_alloc_put_freelist( /* * Read in the allocation group header (free/alloc section). */ -STATIC int /* error */ +int /* error */ xfs_read_agf( struct xfs_mount *mp, /* mount point structure */ struct xfs_trans *tp, /* transaction pointer */ -- cgit v0.10.2 From eb00457d624c70a2492c319e7e05ed7e067b2794 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Sun, 5 Jul 2009 12:23:35 -0500 Subject: xfs: remove XFS_INO64_OFFSET Commit a19d9f887d81106d52cacbc9930207b487e07e0e removed the ino64 option but left the XFS_INO64_OFFSET define it used in place - just remove it. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_inum.h b/fs/xfs/xfs_inum.h index 7a28191..b8e4ee4 100644 --- a/fs/xfs/xfs_inum.h +++ b/fs/xfs/xfs_inum.h @@ -72,7 +72,6 @@ struct xfs_mount; #if XFS_BIG_INUMS #define XFS_MAXINUMBER ((xfs_ino_t)((1ULL << 56) - 1ULL)) -#define XFS_INO64_OFFSET ((xfs_ino_t)(1ULL << 32)) #else #define XFS_MAXINUMBER ((xfs_ino_t)((1ULL << 32) - 1ULL)) #endif -- cgit v0.10.2 From a0f7bfd3429fc48f4d1aa5364b9428d75798ba04 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 27 Jul 2009 18:15:25 +0200 Subject: fs/xfs: Correct redundant test bp was tested for NULL a few lines before, followed by a return, and there is no intervening modification of its value. A simplified version of the semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @r exists@ local idexpression x; expression E; position p1,p2; @@ if (x == NULL || ...) { ... when forall return ...; } ... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\) ( *x == NULL | *x != NULL ) // Signed-off-by: Julia Lawall Acked-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 8ee2f8c..218829e 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -307,7 +307,7 @@ xfs_trans_read_buf( return (flags & XFS_BUF_TRYLOCK) ? EAGAIN : XFS_ERROR(ENOMEM); - if ((bp != NULL) && (XFS_BUF_GETERROR(bp) != 0)) { + if (XFS_BUF_GETERROR(bp) != 0) { xfs_ioerror_alert("xfs_trans_read_buf", mp, bp, blkno); error = XFS_BUF_GETERROR(bp); @@ -315,7 +315,7 @@ xfs_trans_read_buf( return error; } #ifdef DEBUG - if (xfs_do_error && (bp != NULL)) { + if (xfs_do_error) { if (xfs_error_target == target) { if (((xfs_req_num++) % xfs_error_mod) == 0) { xfs_buf_relse(bp); -- cgit v0.10.2 From 85c0b2ab5e69ca6133380ead1c50e0840d136b39 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 31 Aug 2009 20:56:51 -0300 Subject: xfs: factor out inode initialisation Factor out code to initialize new inode clusters into a function of it's own. This keeps xfs_ialloc_ag_alloc smaller and better structured and enables a future inode cluster initialization transaction. Also initialize the agno variable earlier in xfs_ialloc_ag_alloc to avoid repeated byte swaps. [hch: The original patch is from Dave from his unpublished inode create transaction patch series, with some modifcations by me to apply stand-alone] Signed-off-by: Dave Chinner Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 3120a3a..ce9edf7 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -153,6 +153,87 @@ xfs_inobt_get_rec( } /* + * Initialise a new set of inodes. + */ +STATIC void +xfs_ialloc_inode_init( + struct xfs_mount *mp, + struct xfs_trans *tp, + xfs_agnumber_t agno, + xfs_agblock_t agbno, + xfs_agblock_t length, + unsigned int gen) +{ + struct xfs_buf *fbuf; + struct xfs_dinode *free; + int blks_per_cluster, nbufs, ninodes; + int version; + int i, j; + xfs_daddr_t d; + + /* + * Loop over the new block(s), filling in the inodes. + * For small block sizes, manipulate the inodes in buffers + * which are multiples of the blocks size. + */ + if (mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(mp)) { + blks_per_cluster = 1; + nbufs = length; + ninodes = mp->m_sb.sb_inopblock; + } else { + blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) / + mp->m_sb.sb_blocksize; + nbufs = length / blks_per_cluster; + ninodes = blks_per_cluster * mp->m_sb.sb_inopblock; + } + + /* + * Figure out what version number to use in the inodes we create. + * If the superblock version has caught up to the one that supports + * the new inode format, then use the new inode version. Otherwise + * use the old version so that old kernels will continue to be + * able to use the file system. + */ + if (xfs_sb_version_hasnlink(&mp->m_sb)) + version = 2; + else + version = 1; + + for (j = 0; j < nbufs; j++) { + /* + * Get the block. + */ + d = XFS_AGB_TO_DADDR(mp, agno, agbno + (j * blks_per_cluster)); + fbuf = xfs_trans_get_buf(tp, mp->m_ddev_targp, d, + mp->m_bsize * blks_per_cluster, + XFS_BUF_LOCK); + ASSERT(fbuf); + ASSERT(!XFS_BUF_GETERROR(fbuf)); + + /* + * Initialize all inodes in this buffer and then log them. + * + * XXX: It would be much better if we had just one transaction + * to log a whole cluster of inodes instead of all the + * individual transactions causing a lot of log traffic. + */ + xfs_biozero(fbuf, 0, ninodes << mp->m_sb.sb_inodelog); + for (i = 0; i < ninodes; i++) { + int ioffset = i << mp->m_sb.sb_inodelog; + uint isize = sizeof(struct xfs_dinode); + + free = xfs_make_iptr(mp, fbuf, i); + free->di_magic = cpu_to_be16(XFS_DINODE_MAGIC); + free->di_version = version; + free->di_gen = cpu_to_be32(gen); + free->di_next_unlinked = cpu_to_be32(NULLAGINO); + xfs_trans_log_buf(tp, fbuf, ioffset, ioffset + isize - 1); + } + xfs_trans_inode_alloc_buf(tp, fbuf); + } +} + +/* * Allocate new inodes in the allocation group specified by agbp. * Return 0 for success, else error code. */ @@ -164,24 +245,15 @@ xfs_ialloc_ag_alloc( { xfs_agi_t *agi; /* allocation group header */ xfs_alloc_arg_t args; /* allocation argument structure */ - int blks_per_cluster; /* fs blocks per inode cluster */ xfs_btree_cur_t *cur; /* inode btree cursor */ - xfs_daddr_t d; /* disk addr of buffer */ xfs_agnumber_t agno; int error; - xfs_buf_t *fbuf; /* new free inodes' buffer */ - xfs_dinode_t *free; /* new free inode structure */ - int i; /* inode counter */ - int j; /* block counter */ - int nbufs; /* num bufs of new inodes */ + int i; xfs_agino_t newino; /* new first inode's number */ xfs_agino_t newlen; /* new number of inodes */ - int ninodes; /* num inodes per buf */ xfs_agino_t thisino; /* current inode number, for loop */ - int version; /* inode version number to use */ int isaligned = 0; /* inode allocation at stripe unit */ /* boundary */ - unsigned int gen; args.tp = tp; args.mp = tp->t_mountp; @@ -202,12 +274,12 @@ xfs_ialloc_ag_alloc( */ agi = XFS_BUF_TO_AGI(agbp); newino = be32_to_cpu(agi->agi_newino); + agno = be32_to_cpu(agi->agi_seqno); args.agbno = XFS_AGINO_TO_AGBNO(args.mp, newino) + XFS_IALLOC_BLOCKS(args.mp); if (likely(newino != NULLAGINO && (args.agbno < be32_to_cpu(agi->agi_length)))) { - args.fsbno = XFS_AGB_TO_FSB(args.mp, - be32_to_cpu(agi->agi_seqno), args.agbno); + args.fsbno = XFS_AGB_TO_FSB(args.mp, agno, args.agbno); args.type = XFS_ALLOCTYPE_THIS_BNO; args.mod = args.total = args.wasdel = args.isfl = args.userdata = args.minalignslop = 0; @@ -258,8 +330,7 @@ xfs_ialloc_ag_alloc( * For now, just allocate blocks up front. */ args.agbno = be32_to_cpu(agi->agi_root); - args.fsbno = XFS_AGB_TO_FSB(args.mp, - be32_to_cpu(agi->agi_seqno), args.agbno); + args.fsbno = XFS_AGB_TO_FSB(args.mp, agno, args.agbno); /* * Allocate a fixed-size extent of inodes. */ @@ -282,8 +353,7 @@ xfs_ialloc_ag_alloc( if (isaligned && args.fsbno == NULLFSBLOCK) { args.type = XFS_ALLOCTYPE_NEAR_BNO; args.agbno = be32_to_cpu(agi->agi_root); - args.fsbno = XFS_AGB_TO_FSB(args.mp, - be32_to_cpu(agi->agi_seqno), args.agbno); + args.fsbno = XFS_AGB_TO_FSB(args.mp, agno, args.agbno); args.alignment = xfs_ialloc_cluster_alignment(&args); if ((error = xfs_alloc_vextent(&args))) return error; @@ -294,85 +364,30 @@ xfs_ialloc_ag_alloc( return 0; } ASSERT(args.len == args.minlen); - /* - * Convert the results. - */ - newino = XFS_OFFBNO_TO_AGINO(args.mp, args.agbno, 0); - /* - * Loop over the new block(s), filling in the inodes. - * For small block sizes, manipulate the inodes in buffers - * which are multiples of the blocks size. - */ - if (args.mp->m_sb.sb_blocksize >= XFS_INODE_CLUSTER_SIZE(args.mp)) { - blks_per_cluster = 1; - nbufs = (int)args.len; - ninodes = args.mp->m_sb.sb_inopblock; - } else { - blks_per_cluster = XFS_INODE_CLUSTER_SIZE(args.mp) / - args.mp->m_sb.sb_blocksize; - nbufs = (int)args.len / blks_per_cluster; - ninodes = blks_per_cluster * args.mp->m_sb.sb_inopblock; - } - /* - * Figure out what version number to use in the inodes we create. - * If the superblock version has caught up to the one that supports - * the new inode format, then use the new inode version. Otherwise - * use the old version so that old kernels will continue to be - * able to use the file system. - */ - if (xfs_sb_version_hasnlink(&args.mp->m_sb)) - version = 2; - else - version = 1; /* + * Stamp and write the inode buffers. + * * Seed the new inode cluster with a random generation number. This * prevents short-term reuse of generation numbers if a chunk is * freed and then immediately reallocated. We use random numbers * rather than a linear progression to prevent the next generation * number from being easily guessable. */ - gen = random32(); - for (j = 0; j < nbufs; j++) { - /* - * Get the block. - */ - d = XFS_AGB_TO_DADDR(args.mp, be32_to_cpu(agi->agi_seqno), - args.agbno + (j * blks_per_cluster)); - fbuf = xfs_trans_get_buf(tp, args.mp->m_ddev_targp, d, - args.mp->m_bsize * blks_per_cluster, - XFS_BUF_LOCK); - ASSERT(fbuf); - ASSERT(!XFS_BUF_GETERROR(fbuf)); + xfs_ialloc_inode_init(args.mp, tp, agno, args.agbno, args.len, + random32()); - /* - * Initialize all inodes in this buffer and then log them. - * - * XXX: It would be much better if we had just one transaction to - * log a whole cluster of inodes instead of all the individual - * transactions causing a lot of log traffic. - */ - xfs_biozero(fbuf, 0, ninodes << args.mp->m_sb.sb_inodelog); - for (i = 0; i < ninodes; i++) { - int ioffset = i << args.mp->m_sb.sb_inodelog; - uint isize = sizeof(struct xfs_dinode); - - free = xfs_make_iptr(args.mp, fbuf, i); - free->di_magic = cpu_to_be16(XFS_DINODE_MAGIC); - free->di_version = version; - free->di_gen = cpu_to_be32(gen); - free->di_next_unlinked = cpu_to_be32(NULLAGINO); - xfs_trans_log_buf(tp, fbuf, ioffset, ioffset + isize - 1); - } - xfs_trans_inode_alloc_buf(tp, fbuf); - } + /* + * Convert the results. + */ + newino = XFS_OFFBNO_TO_AGINO(args.mp, args.agbno, 0); be32_add_cpu(&agi->agi_count, newlen); be32_add_cpu(&agi->agi_freecount, newlen); - agno = be32_to_cpu(agi->agi_seqno); down_read(&args.mp->m_peraglock); args.mp->m_perag[agno].pagi_freecount += newlen; up_read(&args.mp->m_peraglock); agi->agi_newino = cpu_to_be32(newino); + /* * Insert records describing the new inode chunk into the btree. */ -- cgit v0.10.2 From 2e287a731e0607e0371dc6165b7dd3ebc67fa8e1 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 31 Aug 2009 20:56:58 -0300 Subject: xfs: improve xfs_inobt_get_rec prototype Most callers of xfs_inobt_get_rec need to fill a xfs_inobt_rec_incore_t, and those who don't yet are fine with a xfs_inobt_rec_incore_t, instead of the three individual variables, too. So just change xfs_inobt_get_rec to write the output into a xfs_inobt_rec_incore_t directly. Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index ce9edf7..72fa3bf 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -135,9 +135,7 @@ xfs_inobt_update( int /* error */ xfs_inobt_get_rec( struct xfs_btree_cur *cur, /* btree cursor */ - xfs_agino_t *ino, /* output: starting inode of chunk */ - __int32_t *fcnt, /* output: number of free inodes */ - xfs_inofree_t *free, /* output: free inode mask */ + xfs_inobt_rec_incore_t *irec, /* btree record */ int *stat) /* output: success/failure */ { union xfs_btree_rec *rec; @@ -145,9 +143,9 @@ xfs_inobt_get_rec( error = xfs_btree_get_rec(cur, &rec, stat); if (!error && *stat == 1) { - *ino = be32_to_cpu(rec->inobt.ir_startino); - *fcnt = be32_to_cpu(rec->inobt.ir_freecount); - *free = be64_to_cpu(rec->inobt.ir_free); + irec->ir_startino = be32_to_cpu(rec->inobt.ir_startino); + irec->ir_freecount = be32_to_cpu(rec->inobt.ir_freecount); + irec->ir_free = be64_to_cpu(rec->inobt.ir_free); } return error; } @@ -746,8 +744,8 @@ nextag: goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); do { - if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino, - &rec.ir_freecount, &rec.ir_free, &i))) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); freecount += rec.ir_freecount; @@ -766,8 +764,7 @@ nextag: if ((error = xfs_inobt_lookup_le(cur, pagino, 0, 0, &i))) goto error0; if (i != 0 && - (error = xfs_inobt_get_rec(cur, &rec.ir_startino, - &rec.ir_freecount, &rec.ir_free, &j)) == 0 && + (error = xfs_inobt_get_rec(cur, &rec, &j)) == 0 && j == 1 && rec.ir_freecount > 0) { /* @@ -799,10 +796,8 @@ nextag: goto error1; doneleft = !i; if (!doneleft) { - if ((error = xfs_inobt_get_rec(tcur, - &trec.ir_startino, - &trec.ir_freecount, - &trec.ir_free, &i))) + error = xfs_inobt_get_rec(tcur, &trec, &i); + if (error) goto error1; XFS_WANT_CORRUPTED_GOTO(i == 1, error1); } @@ -813,10 +808,8 @@ nextag: goto error1; doneright = !i; if (!doneright) { - if ((error = xfs_inobt_get_rec(cur, - &rec.ir_startino, - &rec.ir_freecount, - &rec.ir_free, &i))) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) goto error1; XFS_WANT_CORRUPTED_GOTO(i == 1, error1); } @@ -876,11 +869,9 @@ nextag: goto error1; doneleft = !i; if (!doneleft) { - if ((error = xfs_inobt_get_rec( - tcur, - &trec.ir_startino, - &trec.ir_freecount, - &trec.ir_free, &i))) + error = xfs_inobt_get_rec( + tcur, &trec, &i); + if (error) goto error1; XFS_WANT_CORRUPTED_GOTO(i == 1, error1); @@ -896,11 +887,9 @@ nextag: goto error1; doneright = !i; if (!doneright) { - if ((error = xfs_inobt_get_rec( - cur, - &rec.ir_startino, - &rec.ir_freecount, - &rec.ir_free, &i))) + error = xfs_inobt_get_rec( + cur, &rec, &i); + if (error) goto error1; XFS_WANT_CORRUPTED_GOTO(i == 1, error1); @@ -919,8 +908,7 @@ nextag: be32_to_cpu(agi->agi_newino), 0, 0, &i))) goto error0; if (i == 1 && - (error = xfs_inobt_get_rec(cur, &rec.ir_startino, - &rec.ir_freecount, &rec.ir_free, &j)) == 0 && + (error = xfs_inobt_get_rec(cur, &rec, &j)) == 0 && j == 1 && rec.ir_freecount > 0) { /* @@ -938,10 +926,8 @@ nextag: goto error0; ASSERT(i == 1); for (;;) { - if ((error = xfs_inobt_get_rec(cur, - &rec.ir_startino, - &rec.ir_freecount, &rec.ir_free, - &i))) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); if (rec.ir_freecount > 0) @@ -975,8 +961,8 @@ nextag: if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) goto error0; do { - if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino, - &rec.ir_freecount, &rec.ir_free, &i))) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); freecount += rec.ir_freecount; @@ -1084,8 +1070,8 @@ xfs_difree( if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) goto error0; do { - if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino, - &rec.ir_freecount, &rec.ir_free, &i))) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) goto error0; if (i) { freecount += rec.ir_freecount; @@ -1107,8 +1093,8 @@ xfs_difree( goto error0; } XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - if ((error = xfs_inobt_get_rec(cur, &rec.ir_startino, &rec.ir_freecount, - &rec.ir_free, &i))) { + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) { cmn_err(CE_WARN, "xfs_difree: xfs_inobt_get_rec() returned an error %d on %s. Returning error.", error, mp->m_fsname); @@ -1187,10 +1173,8 @@ xfs_difree( if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) goto error0; do { - if ((error = xfs_inobt_get_rec(cur, - &rec.ir_startino, - &rec.ir_freecount, - &rec.ir_free, &i))) + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) goto error0; if (i) { freecount += rec.ir_freecount; @@ -1312,9 +1296,7 @@ xfs_imap( chunk_agbno = agbno - offset_agbno; } else { xfs_btree_cur_t *cur; /* inode btree cursor */ - xfs_agino_t chunk_agino; /* first agino in inode chunk */ - __int32_t chunk_cnt; /* count of free inodes in chunk */ - xfs_inofree_t chunk_free; /* mask of free inodes in chunk */ + xfs_inobt_rec_incore_t chunk_rec; xfs_buf_t *agbp; /* agi buffer */ int i; /* temp state */ @@ -1337,8 +1319,7 @@ xfs_imap( goto error0; } - error = xfs_inobt_get_rec(cur, &chunk_agino, &chunk_cnt, - &chunk_free, &i); + error = xfs_inobt_get_rec(cur, &chunk_rec, &i); if (error) { xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " "xfs_inobt_get_rec() failed"); @@ -1356,7 +1337,7 @@ xfs_imap( xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); if (error) return error; - chunk_agbno = XFS_AGINO_TO_AGBNO(mp, chunk_agino); + chunk_agbno = XFS_AGINO_TO_AGBNO(mp, chunk_rec.ir_startino); offset_agbno = agbno - chunk_agbno; } diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h index aeee827..52e72fe 100644 --- a/fs/xfs/xfs_ialloc.h +++ b/fs/xfs/xfs_ialloc.h @@ -166,7 +166,7 @@ int xfs_inobt_lookup_le(struct xfs_btree_cur *cur, xfs_agino_t ino, /* * Get the data from the pointed-to record. */ -extern int xfs_inobt_get_rec(struct xfs_btree_cur *cur, xfs_agino_t *ino, - __int32_t *fcnt, xfs_inofree_t *free, int *stat); +extern int xfs_inobt_get_rec(struct xfs_btree_cur *cur, + xfs_inobt_rec_incore_t *rec, int *stat); #endif /* __XFS_IALLOC_H__ */ diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index c471122..3ec13e8 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -353,9 +353,6 @@ xfs_bulkstat( int end_of_ag; /* set if we've seen the ag end */ int error; /* error code */ int fmterror;/* bulkstat formatter result */ - __int32_t gcnt; /* current btree rec's count */ - xfs_inofree_t gfree; /* current btree rec's free mask */ - xfs_agino_t gino; /* current btree rec's start inode */ int i; /* loop index */ int icount; /* count of inodes good in irbuf */ size_t irbsize; /* size of irec buffer in bytes */ @@ -442,6 +439,8 @@ xfs_bulkstat( * we need to get the remainder of the chunk we're in. */ if (agino > 0) { + xfs_inobt_rec_incore_t r; + /* * Lookup the inode chunk that this inode lives in. */ @@ -449,33 +448,33 @@ xfs_bulkstat( if (!error && /* no I/O error */ tmp && /* lookup succeeded */ /* got the record, should always work */ - !(error = xfs_inobt_get_rec(cur, &gino, &gcnt, - &gfree, &i)) && + !(error = xfs_inobt_get_rec(cur, &r, &i)) && i == 1 && /* this is the right chunk */ - agino < gino + XFS_INODES_PER_CHUNK && + agino < r.ir_startino + XFS_INODES_PER_CHUNK && /* lastino was not last in chunk */ - (chunkidx = agino - gino + 1) < + (chunkidx = agino - r.ir_startino + 1) < XFS_INODES_PER_CHUNK && /* there are some left allocated */ xfs_inobt_maskn(chunkidx, - XFS_INODES_PER_CHUNK - chunkidx) & ~gfree) { + XFS_INODES_PER_CHUNK - chunkidx) & + ~r.ir_free) { /* * Grab the chunk record. Mark all the * uninteresting inodes (because they're * before our start point) free. */ for (i = 0; i < chunkidx; i++) { - if (XFS_INOBT_MASK(i) & ~gfree) - gcnt++; + if (XFS_INOBT_MASK(i) & ~r.ir_free) + r.ir_freecount++; } - gfree |= xfs_inobt_maskn(0, chunkidx); - irbp->ir_startino = gino; - irbp->ir_freecount = gcnt; - irbp->ir_free = gfree; + r.ir_free |= xfs_inobt_maskn(0, chunkidx); + irbp->ir_startino = r.ir_startino; + irbp->ir_freecount = r.ir_freecount; + irbp->ir_free = r.ir_free; irbp++; - agino = gino + XFS_INODES_PER_CHUNK; - icount = XFS_INODES_PER_CHUNK - gcnt; + agino = r.ir_startino + XFS_INODES_PER_CHUNK; + icount = XFS_INODES_PER_CHUNK - r.ir_freecount; } else { /* * If any of those tests failed, bump the @@ -501,6 +500,8 @@ xfs_bulkstat( * until we run out of inodes or space in the buffer. */ while (irbp < irbufend && icount < ubcount) { + xfs_inobt_rec_incore_t r; + /* * Loop as long as we're unable to read the * inode btree. @@ -518,43 +519,47 @@ xfs_bulkstat( * If ran off the end of the ag either with an error, * or the normal way, set end and stop collecting. */ - if (error || - (error = xfs_inobt_get_rec(cur, &gino, &gcnt, - &gfree, &i)) || - i == 0) { + if (error) { + end_of_ag = 1; + break; + } + + error = xfs_inobt_get_rec(cur, &r, &i); + if (error || i == 0) { end_of_ag = 1; break; } + /* * If this chunk has any allocated inodes, save it. * Also start read-ahead now for this chunk. */ - if (gcnt < XFS_INODES_PER_CHUNK) { + if (r.ir_freecount < XFS_INODES_PER_CHUNK) { /* * Loop over all clusters in the next chunk. * Do a readahead if there are any allocated * inodes in that cluster. */ - for (agbno = XFS_AGINO_TO_AGBNO(mp, gino), - chunkidx = 0; + agbno = XFS_AGINO_TO_AGBNO(mp, r.ir_startino); + for (chunkidx = 0; chunkidx < XFS_INODES_PER_CHUNK; chunkidx += nicluster, agbno += nbcluster) { - if (xfs_inobt_maskn(chunkidx, - nicluster) & ~gfree) + if (xfs_inobt_maskn(chunkidx, nicluster) + & ~r.ir_free) xfs_btree_reada_bufs(mp, agno, agbno, nbcluster); } - irbp->ir_startino = gino; - irbp->ir_freecount = gcnt; - irbp->ir_free = gfree; + irbp->ir_startino = r.ir_startino; + irbp->ir_freecount = r.ir_freecount; + irbp->ir_free = r.ir_free; irbp++; - icount += XFS_INODES_PER_CHUNK - gcnt; + icount += XFS_INODES_PER_CHUNK - r.ir_freecount; } /* * Set agino to after this chunk and bump the cursor. */ - agino = gino + XFS_INODES_PER_CHUNK; + agino = r.ir_startino + XFS_INODES_PER_CHUNK; error = xfs_btree_increment(cur, 0, &tmp); cond_resched(); } @@ -820,9 +825,7 @@ xfs_inumbers( int bufidx; xfs_btree_cur_t *cur; int error; - __int32_t gcnt; - xfs_inofree_t gfree; - xfs_agino_t gino; + xfs_inobt_rec_incore_t r; int i; xfs_ino_t ino; int left; @@ -870,9 +873,8 @@ xfs_inumbers( continue; } } - if ((error = xfs_inobt_get_rec(cur, &gino, &gcnt, &gfree, - &i)) || - i == 0) { + error = xfs_inobt_get_rec(cur, &r, &i); + if (error || i == 0) { xfs_buf_relse(agbp); agbp = NULL; xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); @@ -881,10 +883,12 @@ xfs_inumbers( agino = 0; continue; } - agino = gino + XFS_INODES_PER_CHUNK - 1; - buffer[bufidx].xi_startino = XFS_AGINO_TO_INO(mp, agno, gino); - buffer[bufidx].xi_alloccount = XFS_INODES_PER_CHUNK - gcnt; - buffer[bufidx].xi_allocmask = ~gfree; + agino = r.ir_startino + XFS_INODES_PER_CHUNK - 1; + buffer[bufidx].xi_startino = + XFS_AGINO_TO_INO(mp, agno, r.ir_startino); + buffer[bufidx].xi_alloccount = + XFS_INODES_PER_CHUNK - r.ir_freecount; + buffer[bufidx].xi_allocmask = ~r.ir_free; bufidx++; left--; if (bufidx == bcount) { -- cgit v0.10.2 From afabc24a73bfee2656724b0a70395f1693eaa62b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 31 Aug 2009 20:57:03 -0300 Subject: xfs: improve xfs_inobt_update prototype Both callers of xfs_inobt_update have the record in form of a xfs_inobt_rec_incore_t, so just pass a pointer to it instead of the individual variables. Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 72fa3bf..8819cda 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -110,22 +110,19 @@ xfs_inobt_lookup_le( } /* - * Update the record referred to by cur to the value given - * by [ino, fcnt, free]. + * Update the record referred to by cur to the value given. * This either works (return 0) or gets an EFSCORRUPTED error. */ STATIC int /* error */ xfs_inobt_update( struct xfs_btree_cur *cur, /* btree cursor */ - xfs_agino_t ino, /* starting inode of chunk */ - __int32_t fcnt, /* free inode count */ - xfs_inofree_t free) /* free inode mask */ + xfs_inobt_rec_incore_t *irec) /* btree record */ { union xfs_btree_rec rec; - rec.inobt.ir_startino = cpu_to_be32(ino); - rec.inobt.ir_freecount = cpu_to_be32(fcnt); - rec.inobt.ir_free = cpu_to_be64(free); + rec.inobt.ir_startino = cpu_to_be32(irec->ir_startino); + rec.inobt.ir_freecount = cpu_to_be32(irec->ir_freecount); + rec.inobt.ir_free = cpu_to_be64(irec->ir_free); return xfs_btree_update(cur, &rec); } @@ -946,8 +943,8 @@ nextag: ino = XFS_AGINO_TO_INO(mp, agno, rec.ir_startino + offset); rec.ir_free &= ~XFS_INOBT_MASK(offset); rec.ir_freecount--; - if ((error = xfs_inobt_update(cur, rec.ir_startino, rec.ir_freecount, - rec.ir_free))) + error = xfs_inobt_update(cur, &rec); + if (error) goto error0; be32_add_cpu(&agi->agi_freecount, -1); xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT); @@ -1149,12 +1146,14 @@ xfs_difree( } else { *delete = 0; - if ((error = xfs_inobt_update(cur, rec.ir_startino, rec.ir_freecount, rec.ir_free))) { + error = xfs_inobt_update(cur, &rec); + if (error) { cmn_err(CE_WARN, - "xfs_difree: xfs_inobt_update() returned an error %d on %s. Returning error.", + "xfs_difree: xfs_inobt_update returned an error %d on %s.", error, mp->m_fsname); goto error0; } + /* * Change the inode free counts and log the ag/sb changes. */ -- cgit v0.10.2 From 0b48db80ba689edfd96ed06c3124d6cf1146de3f Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 31 Aug 2009 20:57:09 -0300 Subject: xfs: factor out debug checks from xfs_dialloc and xfs_difree Factor out a common helper from repeated debug checks in xfs_dialloc and xfs_difree. [hch: split out from Dave's dynamic allocation policy patches] Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 8819cda..18bf6ee 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -148,6 +148,47 @@ xfs_inobt_get_rec( } /* + * Verify that the number of free inodes in the AGI is correct. + */ +#ifdef DEBUG +STATIC int +xfs_check_agi_freecount( + struct xfs_btree_cur *cur, + struct xfs_agi *agi) +{ + if (cur->bc_nlevels == 1) { + xfs_inobt_rec_incore_t rec; + int freecount = 0; + int error; + int i; + + error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i); + if (error) + return error; + + do { + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) + return error; + + if (i) { + freecount += rec.ir_freecount; + error = xfs_btree_increment(cur, 0, &i); + if (error) + return error; + } + } while (i == 1); + + if (!XFS_FORCED_SHUTDOWN(cur->bc_mp)) + ASSERT(freecount == be32_to_cpu(agi->agi_freecount)); + } + return 0; +} +#else +#define xfs_check_agi_freecount(cur, agi) 0 +#endif + +/* * Initialise a new set of inodes. */ STATIC void @@ -548,6 +589,7 @@ nextag: } } + /* * Visible inode allocation functions. */ @@ -733,27 +775,11 @@ nextag: */ if (!pagino) pagino = be32_to_cpu(agi->agi_newino); -#ifdef DEBUG - if (cur->bc_nlevels == 1) { - int freecount = 0; - if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - do { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - freecount += rec.ir_freecount; - if ((error = xfs_btree_increment(cur, 0, &i))) - goto error0; - } while (i == 1); + error = xfs_check_agi_freecount(cur, agi); + if (error) + goto error0; - ASSERT(freecount == be32_to_cpu(agi->agi_freecount) || - XFS_FORCED_SHUTDOWN(mp)); - } -#endif /* * If in the same a.g. as the parent, try to get near the parent. */ @@ -951,25 +977,11 @@ nextag: down_read(&mp->m_peraglock); mp->m_perag[tagno].pagi_freecount--; up_read(&mp->m_peraglock); -#ifdef DEBUG - if (cur->bc_nlevels == 1) { - int freecount = 0; - if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) - goto error0; - do { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - freecount += rec.ir_freecount; - if ((error = xfs_btree_increment(cur, 0, &i))) - goto error0; - } while (i == 1); - ASSERT(freecount == be32_to_cpu(agi->agi_freecount) || - XFS_FORCED_SHUTDOWN(mp)); - } -#endif + error = xfs_check_agi_freecount(cur, agi); + if (error) + goto error0; + xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, -1); *inop = ino; @@ -1060,26 +1072,11 @@ xfs_difree( * Initialize the cursor. */ cur = xfs_inobt_init_cursor(mp, tp, agbp, agno); -#ifdef DEBUG - if (cur->bc_nlevels == 1) { - int freecount = 0; - if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) - goto error0; - do { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error0; - if (i) { - freecount += rec.ir_freecount; - if ((error = xfs_btree_increment(cur, 0, &i))) - goto error0; - } - } while (i == 1); - ASSERT(freecount == be32_to_cpu(agi->agi_freecount) || - XFS_FORCED_SHUTDOWN(mp)); - } -#endif + error = xfs_check_agi_freecount(cur, agi); + if (error) + goto error0; + /* * Look for the entry describing this inode. */ @@ -1165,26 +1162,10 @@ xfs_difree( xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, 1); } -#ifdef DEBUG - if (cur->bc_nlevels == 1) { - int freecount = 0; + error = xfs_check_agi_freecount(cur, agi); + if (error) + goto error0; - if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) - goto error0; - do { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error0; - if (i) { - freecount += rec.ir_freecount; - if ((error = xfs_btree_increment(cur, 0, &i))) - goto error0; - } - } while (i == 1); - ASSERT(freecount == be32_to_cpu(agi->agi_freecount) || - XFS_FORCED_SHUTDOWN(mp)); - } -#endif xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); return 0; -- cgit v0.10.2 From 4254b0bbb1c0826b7443ffa593576696bc591aa2 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 31 Aug 2009 20:57:14 -0300 Subject: xfs: untangle xfs_dialloc Clarify the control flow in xfs_dialloc. Factor out a helper to go to the next node from the current one and improve the control flow by expanding composite if statements and using gotos. The xfs_ialloc_next_rec helper is borrowed from Dave Chinners dynamic allocation policy patches. Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 18bf6ee..7679c16 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -589,6 +589,37 @@ nextag: } } +/* + * Try to retrieve the next record to the left/right from the current one. + */ +STATIC int +xfs_ialloc_next_rec( + struct xfs_btree_cur *cur, + xfs_inobt_rec_incore_t *rec, + int *done, + int left) +{ + int error; + int i; + + if (left) + error = xfs_btree_decrement(cur, 0, &i); + else + error = xfs_btree_increment(cur, 0, &i); + + if (error) + return error; + *done = !i; + if (i) { + error = xfs_inobt_get_rec(cur, rec, &i); + if (error) + return error; + XFS_WANT_CORRUPTED_RETURN(i == 1); + } + + return 0; +} + /* * Visible inode allocation functions. @@ -644,8 +675,8 @@ xfs_dialloc( int j; /* result code */ xfs_mount_t *mp; /* file system mount structure */ int offset; /* index of inode in chunk */ - xfs_agino_t pagino; /* parent's a.g. relative inode # */ - xfs_agnumber_t pagno; /* parent's allocation group number */ + xfs_agino_t pagino; /* parent's AG relative inode # */ + xfs_agnumber_t pagno; /* parent's AG number */ xfs_inobt_rec_incore_t rec; /* inode allocation record */ xfs_agnumber_t tagno; /* testing allocation group number */ xfs_btree_cur_t *tcur; /* temp cursor */ @@ -781,186 +812,140 @@ nextag: goto error0; /* - * If in the same a.g. as the parent, try to get near the parent. + * If in the same AG as the parent, try to get near the parent. */ if (pagno == agno) { - if ((error = xfs_inobt_lookup_le(cur, pagino, 0, 0, &i))) + int doneleft; /* done, to the left */ + int doneright; /* done, to the right */ + + error = xfs_inobt_lookup_le(cur, pagino, 0, 0, &i); + if (error) + goto error0; + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); + + error = xfs_inobt_get_rec(cur, &rec, &j); + if (error) goto error0; - if (i != 0 && - (error = xfs_inobt_get_rec(cur, &rec, &j)) == 0 && - j == 1 && - rec.ir_freecount > 0) { + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); + + if (rec.ir_freecount > 0) { /* * Found a free inode in the same chunk - * as parent, done. + * as the parent, done. */ + goto alloc_inode; } + + /* - * In the same a.g. as parent, but parent's chunk is full. + * In the same AG as parent, but parent's chunk is full. */ - else { - int doneleft; /* done, to the left */ - int doneright; /* done, to the right */ - if (error) - goto error0; - ASSERT(i == 1); - ASSERT(j == 1); - /* - * Duplicate the cursor, search left & right - * simultaneously. - */ - if ((error = xfs_btree_dup_cursor(cur, &tcur))) - goto error0; - /* - * Search left with tcur, back up 1 record. - */ - if ((error = xfs_btree_decrement(tcur, 0, &i))) - goto error1; - doneleft = !i; - if (!doneleft) { - error = xfs_inobt_get_rec(tcur, &trec, &i); - if (error) - goto error1; - XFS_WANT_CORRUPTED_GOTO(i == 1, error1); + /* duplicate the cursor, search left & right simultaneously */ + error = xfs_btree_dup_cursor(cur, &tcur); + if (error) + goto error0; + + /* search left with tcur, back up 1 record */ + error = xfs_ialloc_next_rec(tcur, &trec, &doneleft, 1); + if (error) + goto error1; + + /* search right with cur, go forward 1 record. */ + error = xfs_ialloc_next_rec(cur, &rec, &doneright, 0); + if (error) + goto error1; + + /* + * Loop until we find an inode chunk with a free inode. + */ + while (!doneleft || !doneright) { + int useleft; /* using left inode chunk this time */ + + /* figure out the closer block if both are valid. */ + if (!doneleft && !doneright) { + useleft = pagino - + (trec.ir_startino + XFS_INODES_PER_CHUNK - 1) < + rec.ir_startino - pagino; + } else { + useleft = !doneleft; } - /* - * Search right with cur, go forward 1 record. - */ - if ((error = xfs_btree_increment(cur, 0, &i))) - goto error1; - doneright = !i; - if (!doneright) { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error1; - XFS_WANT_CORRUPTED_GOTO(i == 1, error1); + + /* free inodes to the left? */ + if (useleft && trec.ir_freecount) { + rec = trec; + xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); + cur = tcur; + goto alloc_inode; } - /* - * Loop until we find the closest inode chunk - * with a free one. - */ - while (!doneleft || !doneright) { - int useleft; /* using left inode - chunk this time */ - /* - * Figure out which block is closer, - * if both are valid. - */ - if (!doneleft && !doneright) - useleft = - pagino - - (trec.ir_startino + - XFS_INODES_PER_CHUNK - 1) < - rec.ir_startino - pagino; - else - useleft = !doneleft; - /* - * If checking the left, does it have - * free inodes? - */ - if (useleft && trec.ir_freecount) { - /* - * Yes, set it up as the chunk to use. - */ - rec = trec; - xfs_btree_del_cursor(cur, - XFS_BTREE_NOERROR); - cur = tcur; - break; - } - /* - * If checking the right, does it have - * free inodes? - */ - if (!useleft && rec.ir_freecount) { - /* - * Yes, it's already set up. - */ - xfs_btree_del_cursor(tcur, - XFS_BTREE_NOERROR); - break; - } - /* - * If used the left, get another one - * further left. - */ - if (useleft) { - if ((error = xfs_btree_decrement(tcur, 0, - &i))) - goto error1; - doneleft = !i; - if (!doneleft) { - error = xfs_inobt_get_rec( - tcur, &trec, &i); - if (error) - goto error1; - XFS_WANT_CORRUPTED_GOTO(i == 1, - error1); - } - } - /* - * If used the right, get another one - * further right. - */ - else { - if ((error = xfs_btree_increment(cur, 0, - &i))) - goto error1; - doneright = !i; - if (!doneright) { - error = xfs_inobt_get_rec( - cur, &rec, &i); - if (error) - goto error1; - XFS_WANT_CORRUPTED_GOTO(i == 1, - error1); - } - } + /* free inodes to the right? */ + if (!useleft && rec.ir_freecount) { + xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR); + goto alloc_inode; } - ASSERT(!doneleft || !doneright); + + /* get next record to check */ + if (useleft) { + error = xfs_ialloc_next_rec(tcur, &trec, + &doneleft, 1); + } else { + error = xfs_ialloc_next_rec(cur, &rec, + &doneright, 0); + } + if (error) + goto error1; } + ASSERT(!doneleft || !doneright); } + /* - * In a different a.g. from the parent. + * In a different AG from the parent. * See if the most recently allocated block has any free. */ else if (be32_to_cpu(agi->agi_newino) != NULLAGINO) { - if ((error = xfs_inobt_lookup_eq(cur, - be32_to_cpu(agi->agi_newino), 0, 0, &i))) + error = xfs_inobt_lookup_eq(cur, be32_to_cpu(agi->agi_newino), + 0, 0, &i); + if (error) goto error0; - if (i == 1 && - (error = xfs_inobt_get_rec(cur, &rec, &j)) == 0 && - j == 1 && - rec.ir_freecount > 0) { - /* - * The last chunk allocated in the group still has - * a free inode. - */ + + if (i == 1) { + error = xfs_inobt_get_rec(cur, &rec, &j); + if (error) + goto error0; + + if (j == 1 && rec.ir_freecount > 0) { + /* + * The last chunk allocated in the group + * still has a free inode. + */ + goto alloc_inode; + } } + /* - * None left in the last group, search the whole a.g. + * None left in the last group, search the whole AG */ - else { + error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i); + if (error) + goto error0; + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); + + for (;;) { + error = xfs_inobt_get_rec(cur, &rec, &i); if (error) goto error0; - if ((error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i))) + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); + if (rec.ir_freecount > 0) + break; + error = xfs_btree_increment(cur, 0, &i); + if (error) goto error0; - ASSERT(i == 1); - for (;;) { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - if (rec.ir_freecount > 0) - break; - if ((error = xfs_btree_increment(cur, 0, &i))) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - } + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); } } + +alloc_inode: offset = xfs_ialloc_find_free(&rec.ir_free); ASSERT(offset >= 0); ASSERT(offset < XFS_INODES_PER_CHUNK); -- cgit v0.10.2 From 2187550525d7bcb8c87689e4eca41b1955bf9ac3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 31 Aug 2009 20:58:21 -0300 Subject: xfs: rationalize xfs_inobt_lookup* Currenly we have a xfs_inobt_lookup* variant for each comparism direction, and all these get all three fields of the inobt records passed, while the common case is just looking for the inode number and we have only marginally more callers than xfs_inobt_lookup* variants. So opencode a direct call to xfs_btree_lookup for the single case where we need all fields, and replace xfs_inobt_lookup* with a xfs_inobt_looku that just takes the inode number and the direction for all other callers. Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 7679c16..748637c 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -57,56 +57,19 @@ xfs_ialloc_cluster_alignment( } /* - * Lookup the record equal to ino in the btree given by cur. + * Lookup a record by ino in the btree given by cur. */ STATIC int /* error */ -xfs_inobt_lookup_eq( +xfs_inobt_lookup( struct xfs_btree_cur *cur, /* btree cursor */ xfs_agino_t ino, /* starting inode of chunk */ - __int32_t fcnt, /* free inode count */ - xfs_inofree_t free, /* free inode mask */ + xfs_lookup_t dir, /* <=, >=, == */ int *stat) /* success/failure */ { cur->bc_rec.i.ir_startino = ino; - cur->bc_rec.i.ir_freecount = fcnt; - cur->bc_rec.i.ir_free = free; - return xfs_btree_lookup(cur, XFS_LOOKUP_EQ, stat); -} - -/* - * Lookup the first record greater than or equal to ino - * in the btree given by cur. - */ -int /* error */ -xfs_inobt_lookup_ge( - struct xfs_btree_cur *cur, /* btree cursor */ - xfs_agino_t ino, /* starting inode of chunk */ - __int32_t fcnt, /* free inode count */ - xfs_inofree_t free, /* free inode mask */ - int *stat) /* success/failure */ -{ - cur->bc_rec.i.ir_startino = ino; - cur->bc_rec.i.ir_freecount = fcnt; - cur->bc_rec.i.ir_free = free; - return xfs_btree_lookup(cur, XFS_LOOKUP_GE, stat); -} - -/* - * Lookup the first record less than or equal to ino - * in the btree given by cur. - */ -int /* error */ -xfs_inobt_lookup_le( - struct xfs_btree_cur *cur, /* btree cursor */ - xfs_agino_t ino, /* starting inode of chunk */ - __int32_t fcnt, /* free inode count */ - xfs_inofree_t free, /* free inode mask */ - int *stat) /* success/failure */ -{ - cur->bc_rec.i.ir_startino = ino; - cur->bc_rec.i.ir_freecount = fcnt; - cur->bc_rec.i.ir_free = free; - return xfs_btree_lookup(cur, XFS_LOOKUP_LE, stat); + cur->bc_rec.i.ir_freecount = 0; + cur->bc_rec.i.ir_free = 0; + return xfs_btree_lookup(cur, dir, stat); } /* @@ -162,7 +125,7 @@ xfs_check_agi_freecount( int error; int i; - error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i); + error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i); if (error) return error; @@ -431,13 +394,17 @@ xfs_ialloc_ag_alloc( for (thisino = newino; thisino < newino + newlen; thisino += XFS_INODES_PER_CHUNK) { - if ((error = xfs_inobt_lookup_eq(cur, thisino, - XFS_INODES_PER_CHUNK, XFS_INOBT_ALL_FREE, &i))) { + cur->bc_rec.i.ir_startino = thisino; + cur->bc_rec.i.ir_freecount = XFS_INODES_PER_CHUNK; + cur->bc_rec.i.ir_free = XFS_INOBT_ALL_FREE; + error = xfs_btree_lookup(cur, XFS_LOOKUP_EQ, &i); + if (error) { xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); return error; } ASSERT(i == 0); - if ((error = xfs_btree_insert(cur, &i))) { + error = xfs_btree_insert(cur, &i); + if (error) { xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); return error; } @@ -818,7 +785,7 @@ nextag: int doneleft; /* done, to the left */ int doneright; /* done, to the right */ - error = xfs_inobt_lookup_le(cur, pagino, 0, 0, &i); + error = xfs_inobt_lookup(cur, pagino, XFS_LOOKUP_LE, &i); if (error) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); @@ -904,8 +871,8 @@ nextag: * See if the most recently allocated block has any free. */ else if (be32_to_cpu(agi->agi_newino) != NULLAGINO) { - error = xfs_inobt_lookup_eq(cur, be32_to_cpu(agi->agi_newino), - 0, 0, &i); + error = xfs_inobt_lookup(cur, be32_to_cpu(agi->agi_newino), + XFS_LOOKUP_EQ, &i); if (error) goto error0; @@ -926,7 +893,7 @@ nextag: /* * None left in the last group, search the whole AG */ - error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &i); + error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i); if (error) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); @@ -1065,9 +1032,9 @@ xfs_difree( /* * Look for the entry describing this inode. */ - if ((error = xfs_inobt_lookup_le(cur, agino, 0, 0, &i))) { + if ((error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i))) { cmn_err(CE_WARN, - "xfs_difree: xfs_inobt_lookup_le returned() an error %d on %s. Returning error.", + "xfs_difree: xfs_inobt_lookup returned() an error %d on %s. Returning error.", error, mp->m_fsname); goto error0; } @@ -1277,10 +1244,10 @@ xfs_imap( } cur = xfs_inobt_init_cursor(mp, tp, agbp, agno); - error = xfs_inobt_lookup_le(cur, agino, 0, 0, &i); + error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i); if (error) { xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: " - "xfs_inobt_lookup_le() failed"); + "xfs_inobt_lookup() failed"); goto error0; } diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h index 52e72fe..bb53854 100644 --- a/fs/xfs/xfs_ialloc.h +++ b/fs/xfs/xfs_ialloc.h @@ -150,18 +150,10 @@ xfs_ialloc_pagi_init( xfs_agnumber_t agno); /* allocation group number */ /* - * Lookup the first record greater than or equal to ino - * in the btree given by cur. + * Lookup a record by ino in the btree given by cur. */ -int xfs_inobt_lookup_ge(struct xfs_btree_cur *cur, xfs_agino_t ino, - __int32_t fcnt, xfs_inofree_t free, int *stat); - -/* - * Lookup the first record less than or equal to ino - * in the btree given by cur. - */ -int xfs_inobt_lookup_le(struct xfs_btree_cur *cur, xfs_agino_t ino, - __int32_t fcnt, xfs_inofree_t free, int *stat); +int xfs_inobt_lookup(struct xfs_btree_cur *cur, xfs_agino_t ino, + xfs_lookup_t dir, int *stat); /* * Get the data from the pointed-to record. diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 3ec13e8..b68f910 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -444,7 +444,8 @@ xfs_bulkstat( /* * Lookup the inode chunk that this inode lives in. */ - error = xfs_inobt_lookup_le(cur, agino, 0, 0, &tmp); + error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, + &tmp); if (!error && /* no I/O error */ tmp && /* lookup succeeded */ /* got the record, should always work */ @@ -492,7 +493,7 @@ xfs_bulkstat( /* * Start of ag. Lookup the first inode chunk. */ - error = xfs_inobt_lookup_ge(cur, 0, 0, 0, &tmp); + error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &tmp); icount = 0; } /* @@ -511,8 +512,8 @@ xfs_bulkstat( if (XFS_AGINO_TO_AGBNO(mp, agino) >= be32_to_cpu(agi->agi_length)) break; - error = xfs_inobt_lookup_ge(cur, agino, 0, 0, - &tmp); + error = xfs_inobt_lookup(cur, agino, + XFS_LOOKUP_GE, &tmp); cond_resched(); } /* @@ -858,7 +859,8 @@ xfs_inumbers( continue; } cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno); - error = xfs_inobt_lookup_ge(cur, agino, 0, 0, &tmp); + error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_GE, + &tmp); if (error) { xfs_btree_del_cursor(cur, XFS_BTREE_ERROR); cur = NULL; -- cgit v0.10.2 From bd169565993b39b9b4b102cdac8b13e0a259ce2f Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Mon, 31 Aug 2009 20:58:28 -0300 Subject: xfs: speed up free inode search Don't search too far - abort if it is outside a certain radius and simply do a linear search for the first free inode. In AGs with a million inodes this can speed up allocation speed by 3-4x. [hch: ported to the new xfs_ialloc.c world order] Signed-off-by: Dave Chinner Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h index f24b50b..a5d54bf 100644 --- a/fs/xfs/xfs_ag.h +++ b/fs/xfs/xfs_ag.h @@ -198,6 +198,15 @@ typedef struct xfs_perag xfs_agino_t pagi_count; /* number of allocated inodes */ int pagb_count; /* pagb slots in use */ xfs_perag_busy_t *pagb_list; /* unstable blocks */ + + /* + * Inode allocation search lookup optimisation. + * If the pagino matches, the search for new inodes + * doesn't need to search the near ones again straight away + */ + xfs_agino_t pagl_pagino; + xfs_agino_t pagl_leftrec; + xfs_agino_t pagl_rightrec; #ifdef __KERNEL__ spinlock_t pagb_lock; /* lock for pagb_list */ diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index 748637c..d12d805 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -587,6 +587,30 @@ xfs_ialloc_next_rec( return 0; } +STATIC int +xfs_ialloc_get_rec( + struct xfs_btree_cur *cur, + xfs_agino_t agino, + xfs_inobt_rec_incore_t *rec, + int *done, + int left) +{ + int error; + int i; + + error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_EQ, &i); + if (error) + return error; + *done = !i; + if (i) { + error = xfs_inobt_get_rec(cur, rec, &i); + if (error) + return error; + XFS_WANT_CORRUPTED_RETURN(i == 1); + } + + return 0; +} /* * Visible inode allocation functions. @@ -766,6 +790,8 @@ nextag: */ agno = tagno; *IO_agbp = NULL; + + restart_pagno: cur = xfs_inobt_init_cursor(mp, tp, agbp, be32_to_cpu(agi->agi_seqno)); /* * If pagino is 0 (this is the root inode allocation) use newino. @@ -782,8 +808,10 @@ nextag: * If in the same AG as the parent, try to get near the parent. */ if (pagno == agno) { + xfs_perag_t *pag = &mp->m_perag[agno]; int doneleft; /* done, to the left */ int doneright; /* done, to the right */ + int searchdistance = 10; error = xfs_inobt_lookup(cur, pagino, XFS_LOOKUP_LE, &i); if (error) @@ -813,15 +841,33 @@ nextag: if (error) goto error0; - /* search left with tcur, back up 1 record */ - error = xfs_ialloc_next_rec(tcur, &trec, &doneleft, 1); - if (error) - goto error1; + /* + * Skip to last blocks looked up if same parent inode. + */ + if (pagino != NULLAGINO && + pag->pagl_pagino == pagino && + pag->pagl_leftrec != NULLAGINO && + pag->pagl_rightrec != NULLAGINO) { + error = xfs_ialloc_get_rec(tcur, pag->pagl_leftrec, + &trec, &doneleft, 1); + if (error) + goto error1; - /* search right with cur, go forward 1 record. */ - error = xfs_ialloc_next_rec(cur, &rec, &doneright, 0); - if (error) - goto error1; + error = xfs_ialloc_get_rec(cur, pag->pagl_rightrec, + &rec, &doneright, 0); + if (error) + goto error1; + } else { + /* search left with tcur, back up 1 record */ + error = xfs_ialloc_next_rec(tcur, &trec, &doneleft, 1); + if (error) + goto error1; + + /* search right with cur, go forward 1 record. */ + error = xfs_ialloc_next_rec(cur, &rec, &doneright, 0); + if (error) + goto error1; + } /* * Loop until we find an inode chunk with a free inode. @@ -829,6 +875,17 @@ nextag: while (!doneleft || !doneright) { int useleft; /* using left inode chunk this time */ + if (!--searchdistance) { + /* + * Not in range - save last search + * location and allocate a new inode + */ + pag->pagl_leftrec = trec.ir_startino; + pag->pagl_rightrec = rec.ir_startino; + pag->pagl_pagino = pagino; + goto newino; + } + /* figure out the closer block if both are valid. */ if (!doneleft && !doneright) { useleft = pagino - @@ -843,12 +900,20 @@ nextag: rec = trec; xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); cur = tcur; + + pag->pagl_leftrec = trec.ir_startino; + pag->pagl_rightrec = rec.ir_startino; + pag->pagl_pagino = pagino; goto alloc_inode; } /* free inodes to the right? */ if (!useleft && rec.ir_freecount) { xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR); + + pag->pagl_leftrec = trec.ir_startino; + pag->pagl_rightrec = rec.ir_startino; + pag->pagl_pagino = pagino; goto alloc_inode; } @@ -863,14 +928,28 @@ nextag: if (error) goto error1; } - ASSERT(!doneleft || !doneright); + + /* + * We've reached the end of the btree. because + * we are only searching a small chunk of the + * btree each search, there is obviously free + * inodes closer to the parent inode than we + * are now. restart the search again. + */ + pag->pagl_pagino = NULLAGINO; + pag->pagl_leftrec = NULLAGINO; + pag->pagl_rightrec = NULLAGINO; + xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR); + xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR); + goto restart_pagno; } /* * In a different AG from the parent. * See if the most recently allocated block has any free. */ - else if (be32_to_cpu(agi->agi_newino) != NULLAGINO) { +newino: + if (be32_to_cpu(agi->agi_newino) != NULLAGINO) { error = xfs_inobt_lookup(cur, be32_to_cpu(agi->agi_newino), XFS_LOOKUP_EQ, &i); if (error) @@ -889,27 +968,27 @@ nextag: goto alloc_inode; } } + } - /* - * None left in the last group, search the whole AG - */ - error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i); + /* + * None left in the last group, search the whole AG + */ + error = xfs_inobt_lookup(cur, 0, XFS_LOOKUP_GE, &i); + if (error) + goto error0; + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); + + for (;;) { + error = xfs_inobt_get_rec(cur, &rec, &i); + if (error) + goto error0; + XFS_WANT_CORRUPTED_GOTO(i == 1, error0); + if (rec.ir_freecount > 0) + break; + error = xfs_btree_increment(cur, 0, &i); if (error) goto error0; XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - - for (;;) { - error = xfs_inobt_get_rec(cur, &rec, &i); - if (error) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - if (rec.ir_freecount > 0) - break; - error = xfs_btree_increment(cur, 0, &i); - if (error) - goto error0; - XFS_WANT_CORRUPTED_GOTO(i == 1, error0); - } } alloc_inode: -- cgit v0.10.2 From 13e6d5cdde0e785aa943810f08b801cadd0935df Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 31 Aug 2009 21:00:31 -0300 Subject: xfs: merge fsync and O_SYNC handling The guarantees for O_SYNC are exactly the same as the ones we need to make for an fsync call (and given that Linux O_SYNC is O_DSYNC the equivalent is fdadatasync, but we treat both the same in XFS), except with a range data writeout. Jan Kara has started unifying these two path for filesystems using the generic helpers, and I've started to look at XFS. The actual transaction commited by xfs_fsync and xfs_write_sync_logforce has a different transaction number, but actually is exactly the same. We'll only use the fsync transaction going forward. One major difference is that xfs_write_sync_logforce never issues a cache flush unless we commit a transaction causing that as a side-effect, which is an obvious bug in the O_SYNC handling. Second all the locking and i_update_size vs i_update_core changes from 978b7237123d007b9fa983af6e0e2fa8f97f9934 never made it to xfs_write_sync_logforce, so we add them back. To make xfs_fsync easily usable from the O_SYNC path, the filemap_fdatawait call is moved up to xfs_file_fsync, so that we don't wait on the whole file after we already waited for our portion in xfs_write. We'll also use a plain call to filemap_write_and_wait_range instead of the previous sync_page_rang which did it in two steps including an half-hearted inode write out that doesn't help us. Once we're done with this also remove the now useless i_update_size tracking. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index aecf251..d5e5559 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -216,7 +216,6 @@ xfs_setfilesize( if (ip->i_d.di_size < isize) { ip->i_d.di_size = isize; ip->i_update_core = 1; - ip->i_update_size = 1; xfs_mark_inode_dirty_sync(ip); } diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c index 0542fd5..988d8f8 100644 --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -172,12 +172,21 @@ xfs_file_release( */ STATIC int xfs_file_fsync( - struct file *filp, - struct dentry *dentry, - int datasync) + struct file *file, + struct dentry *dentry, + int datasync) { - xfs_iflags_clear(XFS_I(dentry->d_inode), XFS_ITRUNCATED); - return -xfs_fsync(XFS_I(dentry->d_inode)); + struct inode *inode = dentry->d_inode; + struct xfs_inode *ip = XFS_I(inode); + int error; + + /* capture size updates in I/O completion before writing the inode. */ + error = filemap_fdatawait(inode->i_mapping); + if (error) + return error; + + xfs_iflags_clear(ip, XFS_ITRUNCATED); + return -xfs_fsync(ip); } STATIC int diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c index 7078974..49e4a6a 100644 --- a/fs/xfs/linux-2.6/xfs_lrw.c +++ b/fs/xfs/linux-2.6/xfs_lrw.c @@ -812,18 +812,21 @@ write_retry: /* Handle various SYNC-type writes */ if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) { + loff_t end = pos + ret - 1; int error2; xfs_iunlock(xip, iolock); if (need_i_mutex) mutex_unlock(&inode->i_mutex); - error2 = sync_page_range(inode, mapping, pos, ret); + + error2 = filemap_write_and_wait_range(mapping, pos, end); if (!error) error = error2; if (need_i_mutex) mutex_lock(&inode->i_mutex); xfs_ilock(xip, iolock); - error2 = xfs_write_sync_logforce(mp, xip); + + error2 = xfs_fsync(xip); if (!error) error = error2; } diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index ecbf8b4..3323826 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -82,7 +82,6 @@ xfs_inode_alloc( memset(&ip->i_df, 0, sizeof(xfs_ifork_t)); ip->i_flags = 0; ip->i_update_core = 0; - ip->i_update_size = 0; ip->i_delayed_blks = 0; memset(&ip->i_d, 0, sizeof(xfs_icdinode_t)); ip->i_size = 0; diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index 00e8505..ed566c2 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -261,7 +261,6 @@ typedef struct xfs_inode { /* Miscellaneous state. */ unsigned short i_flags; /* see defined flags below */ unsigned char i_update_core; /* timestamps/size is dirty */ - unsigned char i_update_size; /* di_size field is dirty */ unsigned int i_delayed_blks; /* count of delay alloc blks */ xfs_icdinode_t i_d; /* most of ondisk inode */ diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 977c4ae..2e69412 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -263,14 +263,6 @@ xfs_inode_item_format( } /* - * We don't have to worry about re-ordering here because - * the update_size field is protected by the inode lock - * and we have that held in exclusive mode. - */ - if (ip->i_update_size) - ip->i_update_size = 0; - - /* * Make sure to get the latest atime from the Linux inode. */ xfs_synchronize_atime(ip); diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c index fea6861..3f816ad 100644 --- a/fs/xfs/xfs_rw.c +++ b/fs/xfs/xfs_rw.c @@ -88,90 +88,6 @@ xfs_write_clear_setuid( } /* - * Handle logging requirements of various synchronous types of write. - */ -int -xfs_write_sync_logforce( - xfs_mount_t *mp, - xfs_inode_t *ip) -{ - int error = 0; - - /* - * If we're treating this as O_DSYNC and we have not updated the - * size, force the log. - */ - if (!(mp->m_flags & XFS_MOUNT_OSYNCISOSYNC) && - !(ip->i_update_size)) { - xfs_inode_log_item_t *iip = ip->i_itemp; - - /* - * If an allocation transaction occurred - * without extending the size, then we have to force - * the log up the proper point to ensure that the - * allocation is permanent. We can't count on - * the fact that buffered writes lock out direct I/O - * writes - the direct I/O write could have extended - * the size nontransactionally, then finished before - * we started. xfs_write_file will think that the file - * didn't grow but the update isn't safe unless the - * size change is logged. - * - * Force the log if we've committed a transaction - * against the inode or if someone else has and - * the commit record hasn't gone to disk (e.g. - * the inode is pinned). This guarantees that - * all changes affecting the inode are permanent - * when we return. - */ - if (iip && iip->ili_last_lsn) { - error = _xfs_log_force(mp, iip->ili_last_lsn, - XFS_LOG_FORCE | XFS_LOG_SYNC, NULL); - } else if (xfs_ipincount(ip) > 0) { - error = _xfs_log_force(mp, (xfs_lsn_t)0, - XFS_LOG_FORCE | XFS_LOG_SYNC, NULL); - } - - } else { - xfs_trans_t *tp; - - /* - * O_SYNC or O_DSYNC _with_ a size update are handled - * the same way. - * - * If the write was synchronous then we need to make - * sure that the inode modification time is permanent. - * We'll have updated the timestamp above, so here - * we use a synchronous transaction to log the inode. - * It's not fast, but it's necessary. - * - * If this a dsync write and the size got changed - * non-transactionally, then we need to ensure that - * the size change gets logged in a synchronous - * transaction. - */ - tp = xfs_trans_alloc(mp, XFS_TRANS_WRITE_SYNC); - if ((error = xfs_trans_reserve(tp, 0, - XFS_SWRITE_LOG_RES(mp), - 0, 0, 0))) { - /* Transaction reserve failed */ - xfs_trans_cancel(tp, 0); - } else { - /* Transaction reserve successful */ - xfs_ilock(ip, XFS_ILOCK_EXCL); - xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); - xfs_trans_ihold(tp, ip); - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - xfs_trans_set_sync(tp); - error = xfs_trans_commit(tp, 0); - xfs_iunlock(ip, XFS_ILOCK_EXCL); - } - } - - return error; -} - -/* * Force a shutdown of the filesystem instantly while keeping * the filesystem consistent. We don't do an unmount here; just shutdown * the shop, make sure that absolutely nothing persistent happens to diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h index ae65f0d..f5e4874 100644 --- a/fs/xfs/xfs_rw.h +++ b/fs/xfs/xfs_rw.h @@ -68,7 +68,6 @@ xfs_get_extsz_hint( * Prototypes for functions in xfs_rw.c. */ extern int xfs_write_clear_setuid(struct xfs_inode *ip); -extern int xfs_write_sync_logforce(struct xfs_mount *mp, struct xfs_inode *ip); extern int xfs_bwrite(struct xfs_mount *mp, struct xfs_buf *bp); extern int xfs_bioerror(struct xfs_buf *bp); extern int xfs_bioerror_relse(struct xfs_buf *bp); diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index 775249a..ed47fc7 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -68,7 +68,7 @@ typedef struct xfs_trans_header { #define XFS_TRANS_GROWFS 14 #define XFS_TRANS_STRAT_WRITE 15 #define XFS_TRANS_DIOSTRAT 16 -#define XFS_TRANS_WRITE_SYNC 17 +/* 17 was XFS_TRANS_WRITE_SYNC */ #define XFS_TRANS_WRITEID 18 #define XFS_TRANS_ADDAFORK 19 #define XFS_TRANS_ATTRINVAL 20 diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index ceecafd..03d3100 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -611,7 +611,7 @@ xfs_fsync( xfs_inode_t *ip) { xfs_trans_t *tp; - int error; + int error = 0; int log_flushed = 0, changed = 1; xfs_itrace_entry(ip); @@ -619,14 +619,9 @@ xfs_fsync( if (XFS_FORCED_SHUTDOWN(ip->i_mount)) return XFS_ERROR(EIO); - /* capture size updates in I/O completion before writing the inode. */ - error = xfs_wait_on_pages(ip, 0, -1); - if (error) - return XFS_ERROR(error); - /* * We always need to make sure that the required inode state is safe on - * disk. The vnode might be clean but we still might need to force the + * disk. The inode might be clean but we still might need to force the * log because of committed transactions that haven't hit the disk yet. * Likewise, there could be unflushed non-transactional changes to the * inode core that have to go to disk and this requires us to issue @@ -638,7 +633,7 @@ xfs_fsync( */ xfs_ilock(ip, XFS_ILOCK_SHARED); - if (!(ip->i_update_size || ip->i_update_core)) { + if (!ip->i_update_core) { /* * Timestamps/size haven't changed since last inode flush or * inode transaction commit. That means either nothing got -- cgit v0.10.2 From aa72a5cf00001d0b952c7c755be404b9118ceb2e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 31 Aug 2009 21:51:52 -0300 Subject: xfs: simplify xfs_trans_iget xfs_trans_iget is a wrapper for xfs_iget that adds the inode to the transaction after it is read. Except when the inode already is in the inode cache, in which case it returns the existing locked inode with increment lock recursion counts. Now, no one in the tree every decrements these lock recursion counts, so any user of this gets a potential double unlock when both the original owner of the inode and the xfs_trans_iget caller unlock it. When looking back in a git bisect in the historic XFS tree there was only one place that decremented these counts, xfs_trans_iput. Introduced in commit ca25df7a840f426eb566d52667b6950b92bb84b5 by Adam Sweeney in 1993, and removed in commit 19f899a3ab155ff6a49c0c79b06f2f61059afaf3 by Steve Lord in 2003. And as long as it didn't slip through git bisects cracks never actually used in that time frame. A quick audit of the callers of xfs_trans_iget shows that no caller really relies on this behaviour fortunately - xfs_ialloc allows this inode from disk so it must not be there before, and all the RT allocator routines only every add each RT bitmap inode once. In addition to removing lots of code and reducing the size of the inode item this patch also avoids the double inode cache lookup in each create/mkdir/mknod transaction. Signed-off-by: Christoph Hellwig Reviewed-by: Alex Elder Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index 3323826..80e5264 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -455,32 +455,6 @@ out_error_or_again: return error; } - -/* - * Look for the inode corresponding to the given ino in the hash table. - * If it is there and its i_transp pointer matches tp, return it. - * Otherwise, return NULL. - */ -xfs_inode_t * -xfs_inode_incore(xfs_mount_t *mp, - xfs_ino_t ino, - xfs_trans_t *tp) -{ - xfs_inode_t *ip; - xfs_perag_t *pag; - - pag = xfs_get_perag(mp, ino); - read_lock(&pag->pag_ici_lock); - ip = radix_tree_lookup(&pag->pag_ici_root, XFS_INO_TO_AGINO(mp, ino)); - read_unlock(&pag->pag_ici_lock); - xfs_put_perag(mp, pag); - - /* the returned inode must match the transaction */ - if (ip && (ip->i_transp != tp)) - return NULL; - return ip; -} - /* * Decrement reference count of an inode structure and unlock it. * diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index ed566c2..0b38b9a 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -467,8 +467,6 @@ static inline void xfs_ifunlock(xfs_inode_t *ip) /* * xfs_iget.c prototypes. */ -xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t, - struct xfs_trans *); int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, uint, uint, xfs_inode_t **, xfs_daddr_t); void xfs_iput(xfs_inode_t *, uint); diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 2e69412..47d5b66 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -704,8 +704,6 @@ xfs_inode_item_unlock( * Clear out the fields of the inode log item particular * to the current transaction. */ - iip->ili_ilock_recur = 0; - iip->ili_iolock_recur = 0; iip->ili_flags = 0; /* diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h index a52ac12..65bae4c 100644 --- a/fs/xfs/xfs_inode_item.h +++ b/fs/xfs/xfs_inode_item.h @@ -137,8 +137,6 @@ typedef struct xfs_inode_log_item { struct xfs_inode *ili_inode; /* inode ptr */ xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ - unsigned short ili_ilock_recur; /* lock recursion count */ - unsigned short ili_iolock_recur; /* lock recursion count */ unsigned short ili_flags; /* misc flags */ unsigned short ili_logged; /* flushed logged data */ unsigned int ili_last_fields; /* fields when flushed */ diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c index 23d276a..785ff10 100644 --- a/fs/xfs/xfs_trans_inode.c +++ b/fs/xfs/xfs_trans_inode.c @@ -49,30 +49,7 @@ xfs_trans_inode_broot_debug( /* - * Get and lock the inode for the caller if it is not already - * locked within the given transaction. If it is already locked - * within the transaction, just increment its lock recursion count - * and return a pointer to it. - * - * For an inode to be locked in a transaction, the inode lock, as - * opposed to the io lock, must be taken exclusively. This ensures - * that the inode can be involved in only 1 transaction at a time. - * Lock recursion is handled on the io lock, but only for lock modes - * of equal or lesser strength. That is, you can recur on the io lock - * held EXCL with a SHARED request but not vice versa. Also, if - * the inode is already a part of the transaction then you cannot - * go from not holding the io lock to having it EXCL or SHARED. - * - * Use the inode cache routine xfs_inode_incore() to find the inode - * if it is already owned by this transaction. - * - * If we don't already own the inode, use xfs_iget() to get it. - * Since the inode log item structure is embedded in the incore - * inode structure and is initialized when the inode is brought - * into memory, there is nothing to do with it here. - * - * If the given transaction pointer is NULL, just call xfs_iget(). - * This simplifies code which must handle both cases. + * Get an inode and join it to the transaction. */ int xfs_trans_iget( @@ -84,62 +61,11 @@ xfs_trans_iget( xfs_inode_t **ipp) { int error; - xfs_inode_t *ip; - - /* - * If the transaction pointer is NULL, just call the normal - * xfs_iget(). - */ - if (tp == NULL) - return xfs_iget(mp, NULL, ino, flags, lock_flags, ipp, 0); - - /* - * If we find the inode in core with this transaction - * pointer in its i_transp field, then we know we already - * have it locked. In this case we just increment the lock - * recursion count and return the inode to the caller. - * Assert that the inode is already locked in the mode requested - * by the caller. We cannot do lock promotions yet, so - * die if someone gets this wrong. - */ - if ((ip = xfs_inode_incore(tp->t_mountp, ino, tp)) != NULL) { - /* - * Make sure that the inode lock is held EXCL and - * that the io lock is never upgraded when the inode - * is already a part of the transaction. - */ - ASSERT(ip->i_itemp != NULL); - ASSERT(lock_flags & XFS_ILOCK_EXCL); - ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); - ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) || - xfs_isilocked(ip, XFS_IOLOCK_EXCL)); - ASSERT((!(lock_flags & XFS_IOLOCK_EXCL)) || - (ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_EXCL)); - ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) || - xfs_isilocked(ip, XFS_IOLOCK_EXCL|XFS_IOLOCK_SHARED)); - ASSERT((!(lock_flags & XFS_IOLOCK_SHARED)) || - (ip->i_itemp->ili_flags & XFS_ILI_IOLOCKED_ANY)); - - if (lock_flags & (XFS_IOLOCK_SHARED | XFS_IOLOCK_EXCL)) { - ip->i_itemp->ili_iolock_recur++; - } - if (lock_flags & XFS_ILOCK_EXCL) { - ip->i_itemp->ili_ilock_recur++; - } - *ipp = ip; - return 0; - } - - ASSERT(lock_flags & XFS_ILOCK_EXCL); - error = xfs_iget(tp->t_mountp, tp, ino, flags, lock_flags, &ip, 0); - if (error) { - return error; - } - ASSERT(ip != NULL); - xfs_trans_ijoin(tp, ip, lock_flags); - *ipp = ip; - return 0; + error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp, 0); + if (!error && tp) + xfs_trans_ijoin(tp, *ipp, lock_flags); + return error; } /* @@ -163,8 +89,6 @@ xfs_trans_ijoin( xfs_inode_item_init(ip, ip->i_mount); iip = ip->i_itemp; ASSERT(iip->ili_flags == 0); - ASSERT(iip->ili_ilock_recur == 0); - ASSERT(iip->ili_iolock_recur == 0); /* * Get a log_item_desc to point at the new item. -- cgit v0.10.2 From f4378b6eaf63492c0f9a397d52813e0ae6b49e7b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 1 Sep 2009 14:03:08 -0400 Subject: xfs: actually enable the swapext compat handler Fix a small typo in the compat ioctl handler that cause the swapext compat handler to never be called. Signed-off-by: Christoph Hellwig Reviewed-by: Torsten Kaiser Tested-by: Torsten Kaiser Reviewed-by: Eric Sandeen Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 0882d16..eafcc7c 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -619,7 +619,7 @@ xfs_file_compat_ioctl( case XFS_IOC_GETVERSION_32: cmd = _NATIVE_IOC(cmd, long); return xfs_file_ioctl(filp, cmd, p); - case XFS_IOC_SWAPEXT: { + case XFS_IOC_SWAPEXT_32: { struct xfs_swapext sxp; struct compat_xfs_swapext __user *sxu = arg; -- cgit v0.10.2 From 81e251766e8f8c9d7abb5db784e58c5c45f82797 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 1 Sep 2009 19:56:55 -0400 Subject: xfs: un-static xfs_inobt_lookup xfs_inobt_lookup is also used in xfs_itable.c, remove the STATIC modifier from it's declaration to fix non-debug builds. Signed-off-by: Christoph Hellwig Reviewed-by: Felix Blyakher Signed-off-by: Felix Blyakher diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c index d12d805..ab64f3e 100644 --- a/fs/xfs/xfs_ialloc.c +++ b/fs/xfs/xfs_ialloc.c @@ -59,7 +59,7 @@ xfs_ialloc_cluster_alignment( /* * Lookup a record by ino in the btree given by cur. */ -STATIC int /* error */ +int /* error */ xfs_inobt_lookup( struct xfs_btree_cur *cur, /* btree cursor */ xfs_agino_t ino, /* starting inode of chunk */ -- cgit v0.10.2 From 988abe4075e5748d9f7c79d9dfffa0cf5291611b Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Wed, 2 Sep 2009 17:02:24 -0500 Subject: xfs: xfs_showargs() reports group *and* project quotas enabled If you enable group or project quotas on an XFS file system, then the mount table presented through /proc/self/mounts erroneously shows that both options are in effect for the file system. The root of the problem is some bad logic in the xfs_showargs() function, which is used to format the file system type-specific options in effect for a file system. The problem originated in this GIT commit: Move platform specific mount option parse out of core XFS code Date: 11/22/07 Author: Dave Chinner SHA1 ID: a67d7c5f5d25d0b13a4dfb182697135b014fa478 For XFS quotas, project and group quota management are mutually exclusive--only one can be in effect at a time. There are two parts to managing quotas: aggregating usage information; and enforcing limits. It is possible to have a quota in effect (aggregating usage) but not enforced. These features are recorded on an XFS mount point using these flags: XFS_PQUOTA_ACCT - Project quotas are aggregated XFS_GQUOTA_ACCT - Group quotas are aggregated XFS_OQUOTA_ENFD - Project/group quotas are enforced The code in error is in fs/xfs/linux-2.6/xfs_super.c: if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) seq_puts(m, "," MNTOPT_PRJQUOTA); else if (mp->m_qflags & XFS_PQUOTA_ACCT) seq_puts(m, "," MNTOPT_PQUOTANOENF); if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) seq_puts(m, "," MNTOPT_GRPQUOTA); else if (mp->m_qflags & XFS_GQUOTA_ACCT) seq_puts(m, "," MNTOPT_GQUOTANOENF); The problem is that XFS_OQUOTA_ENFD will be set in mp->m_qflags if either group or project quotas are enforced, and as a result both MNTOPT_PRJQUOTA and MNTOPT_GRPQUOTA will be shown as mount options. Signed-off-by: Alex Elder Reviewed-by: Christoph Hellwig Reviewed-by: Felix Blyakher diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index c709ed6..5d7c60a 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -579,15 +579,19 @@ xfs_showargs( else if (mp->m_qflags & XFS_UQUOTA_ACCT) seq_puts(m, "," MNTOPT_UQUOTANOENF); - if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD)) - seq_puts(m, "," MNTOPT_PRJQUOTA); - else if (mp->m_qflags & XFS_PQUOTA_ACCT) - seq_puts(m, "," MNTOPT_PQUOTANOENF); - - if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD)) - seq_puts(m, "," MNTOPT_GRPQUOTA); - else if (mp->m_qflags & XFS_GQUOTA_ACCT) - seq_puts(m, "," MNTOPT_GQUOTANOENF); + /* Either project or group quotas can be active, not both */ + + if (mp->m_qflags & XFS_PQUOTA_ACCT) { + if (mp->m_qflags & XFS_OQUOTA_ENFD) + seq_puts(m, "," MNTOPT_PRJQUOTA); + else + seq_puts(m, "," MNTOPT_PQUOTANOENF); + } else if (mp->m_qflags & XFS_GQUOTA_ACCT) { + if (mp->m_qflags & XFS_OQUOTA_ENFD) + seq_puts(m, "," MNTOPT_GRPQUOTA); + else + seq_puts(m, "," MNTOPT_GQUOTANOENF); + } if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT)) seq_puts(m, "," MNTOPT_NOQUOTA); -- cgit v0.10.2 From 4734d401d43c6469d568caf223d37aa0fc1bf4dc Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 9 Sep 2009 18:19:02 -0500 Subject: xfs: use correct log reservation when handling ENOSPC in xfs_create We added the ENOSPC handling patch in xfs_create just after it got mered with xfs_mkdir. Change the log reservation to the variable for either the create or mkdir value so it does the right thing if get here for creating a directory. Signed-off-by: Christoph Hellwig Signed-off-by: Alex Elder diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 03d3100..a434f28 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1471,8 +1471,8 @@ xfs_create( if (error == ENOSPC) { /* flush outstanding delalloc blocks and retry */ xfs_flush_inodes(dp); - error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0, - XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT); + error = xfs_trans_reserve(tp, resblks, log_res, 0, + XFS_TRANS_PERM_LOG_RES, log_count); } if (error == ENOSPC) { /* No space at all so try a "no-allocation" reservation */ -- cgit v0.10.2 From f08a59f1467b92cd9b8c78961506f69c74bb01a5 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Fri, 11 Sep 2009 09:51:25 -0500 Subject: xfs: Record new maintainer information Update the MAINTAINERS file entry for XFS. Signed-off-by: Alex Elder Signed-off by: Felix Blyakher diff --git a/MAINTAINERS b/MAINTAINERS index 8dca9d8..d5bbeba 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5627,7 +5627,7 @@ F: include/xen/ XFS FILESYSTEM P: Silicon Graphics Inc -M: Felix Blyakher +M: Alex Elder M: xfs-masters@oss.sgi.com L: xfs@oss.sgi.com W: http://oss.sgi.com/projects/xfs -- cgit v0.10.2 From 361735fd8ff8f7d8b9f0e134d0d99d99ee193d92 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Fri, 28 Aug 2009 23:55:00 +0400 Subject: xfs: switch to seq_file create_proc_read_entry() is getting deprecated. Signed-off-by: Alexey Dobriyan Reviewed-by: Alex Elder Signed-off-by: Alex Elder diff --git a/fs/xfs/linux-2.6/xfs_stats.c b/fs/xfs/linux-2.6/xfs_stats.c index c3526d4..76fdc58 100644 --- a/fs/xfs/linux-2.6/xfs_stats.c +++ b/fs/xfs/linux-2.6/xfs_stats.c @@ -20,16 +20,9 @@ DEFINE_PER_CPU(struct xfsstats, xfsstats); -STATIC int -xfs_read_xfsstats( - char *buffer, - char **start, - off_t offset, - int count, - int *eof, - void *data) +static int xfs_stat_proc_show(struct seq_file *m, void *v) { - int c, i, j, len, val; + int c, i, j, val; __uint64_t xs_xstrat_bytes = 0; __uint64_t xs_write_bytes = 0; __uint64_t xs_read_bytes = 0; @@ -60,18 +53,18 @@ xfs_read_xfsstats( }; /* Loop over all stats groups */ - for (i=j=len = 0; i < ARRAY_SIZE(xstats); i++) { - len += sprintf(buffer + len, "%s", xstats[i].desc); + for (i=j = 0; i < ARRAY_SIZE(xstats); i++) { + seq_printf(m, "%s", xstats[i].desc); /* inner loop does each group */ while (j < xstats[i].endpoint) { val = 0; /* sum over all cpus */ for_each_possible_cpu(c) val += *(((__u32*)&per_cpu(xfsstats, c) + j)); - len += sprintf(buffer + len, " %u", val); + seq_printf(m, " %u", val); j++; } - buffer[len++] = '\n'; + seq_putc(m, '\n'); } /* extra precision counters */ for_each_possible_cpu(i) { @@ -80,36 +73,38 @@ xfs_read_xfsstats( xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes; } - len += sprintf(buffer + len, "xpc %Lu %Lu %Lu\n", + seq_printf(m, "xpc %Lu %Lu %Lu\n", xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); - len += sprintf(buffer + len, "debug %u\n", + seq_printf(m, "debug %u\n", #if defined(DEBUG) 1); #else 0); #endif + return 0; +} - if (offset >= len) { - *start = buffer; - *eof = 1; - return 0; - } - *start = buffer + offset; - if ((len -= offset) > count) - return count; - *eof = 1; - - return len; +static int xfs_stat_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, xfs_stat_proc_show, NULL); } +static const struct file_operations xfs_stat_proc_fops = { + .owner = THIS_MODULE, + .open = xfs_stat_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + int xfs_init_procfs(void) { if (!proc_mkdir("fs/xfs", NULL)) goto out; - if (!create_proc_read_entry("fs/xfs/stat", 0, NULL, - xfs_read_xfsstats, NULL)) + if (!proc_create("fs/xfs/stat", 0, NULL, + &xfs_stat_proc_fops)) goto out_remove_entry; return 0; diff --git a/fs/xfs/quota/xfs_qm_stats.c b/fs/xfs/quota/xfs_qm_stats.c index 21b08c0..83e7ea3 100644 --- a/fs/xfs/quota/xfs_qm_stats.c +++ b/fs/xfs/quota/xfs_qm_stats.c @@ -48,50 +48,34 @@ struct xqmstats xqmstats; -STATIC int -xfs_qm_read_xfsquota( - char *buffer, - char **start, - off_t offset, - int count, - int *eof, - void *data) +static int xqm_proc_show(struct seq_file *m, void *v) { - int len; - /* maximum; incore; ratio free to inuse; freelist */ - len = sprintf(buffer, "%d\t%d\t%d\t%u\n", + seq_printf(m, "%d\t%d\t%d\t%u\n", ndquot, xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0, xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0, xfs_Gqm? xfs_Gqm->qm_dqfreelist.qh_nelems : 0); - - if (offset >= len) { - *start = buffer; - *eof = 1; - return 0; - } - *start = buffer + offset; - if ((len -= offset) > count) - return count; - *eof = 1; - - return len; + return 0; } -STATIC int -xfs_qm_read_stats( - char *buffer, - char **start, - off_t offset, - int count, - int *eof, - void *data) +static int xqm_proc_open(struct inode *inode, struct file *file) { - int len; + return single_open(file, xqm_proc_show, NULL); +} + +static const struct file_operations xqm_proc_fops = { + .owner = THIS_MODULE, + .open = xqm_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; +static int xqmstat_proc_show(struct seq_file *m, void *v) +{ /* quota performance statistics */ - len = sprintf(buffer, "qm %u %u %u %u %u %u %u %u\n", + seq_printf(m, "qm %u %u %u %u %u %u %u %u\n", xqmstats.xs_qm_dqreclaims, xqmstats.xs_qm_dqreclaim_misses, xqmstats.xs_qm_dquot_dups, @@ -100,25 +84,27 @@ xfs_qm_read_stats( xqmstats.xs_qm_dqwants, xqmstats.xs_qm_dqshake_reclaims, xqmstats.xs_qm_dqinact_reclaims); + return 0; +} - if (offset >= len) { - *start = buffer; - *eof = 1; - return 0; - } - *start = buffer + offset; - if ((len -= offset) > count) - return count; - *eof = 1; - - return len; +static int xqmstat_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, xqmstat_proc_show, NULL); } +static const struct file_operations xqmstat_proc_fops = { + .owner = THIS_MODULE, + .open = xqmstat_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + void xfs_qm_init_procfs(void) { - create_proc_read_entry("fs/xfs/xqmstat", 0, NULL, xfs_qm_read_stats, NULL); - create_proc_read_entry("fs/xfs/xqm", 0, NULL, xfs_qm_read_xfsquota, NULL); + proc_create("fs/xfs/xqmstat", 0, NULL, &xqmstat_proc_fops); + proc_create("fs/xfs/xqm", 0, NULL, &xqm_proc_fops); } void -- cgit v0.10.2 From 9ef96da6ec5e1b4cf7eb8e30852cd88ec7d5fdc0 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Sun, 9 Aug 2009 20:23:12 +0530 Subject: xfs: includecheck fix for fs/xfs/xfs_iops.c fix the following 'make includecheck' warning: fs/xfs/linux-2.6/xfs_iops.c: xfs_acl.h is included more than once. Signed-off-by: Jaswinder Singh Rajput Reviewed-by: Alex Elder Signed-off-by: Alex Elder diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 8070b34..626b474 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -43,7 +43,6 @@ #include "xfs_error.h" #include "xfs_itable.h" #include "xfs_rw.h" -#include "xfs_acl.h" #include "xfs_attr.h" #include "xfs_buf_item.h" #include "xfs_utils.h" -- cgit v0.10.2