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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-01-17 00:19:54 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-01-17 00:19:54 (GMT) |
commit | dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8 (patch) | |
tree | 80a0af3d940ca160dff0fc338ce6777a5b7058e1 | |
parent | 309b51e87905e8a52060dbbab1e427552d5dda9a (diff) | |
parent | 37f13561de6039b3a916d1510086030d097dea0f (diff) | |
download | linux-dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8.tar.xz |
Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs
Pull xfs bugfixes from Ben Myers:
- fix(es) for compound buffers
- fix for dquot soft timer asserts due to overflow of d_blk_softlimit
- fix for regression in dir v2 code introduced in commit 20f7e9f3726a
("xfs: factor dir2 block read operations")
* tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs:
xfs: recalculate leaf entry pointer after compacting a dir2 block
xfs: remove int casts from debug dquot soft limit timer asserts
xfs: fix the multi-segment log buffer format
xfs: fix segment in xfs_buf_item_format_segment
xfs: rename bli_format to avoid confusion with bli_formats
xfs: use b_maps[] for discontiguous buffers
-rw-r--r-- | fs/xfs/xfs_buf.c | 12 | ||||
-rw-r--r-- | fs/xfs/xfs_buf.h | 6 | ||||
-rw-r--r-- | fs/xfs/xfs_buf_item.c | 49 | ||||
-rw-r--r-- | fs/xfs/xfs_buf_item.h | 2 | ||||
-rw-r--r-- | fs/xfs/xfs_dir2_block.c | 6 | ||||
-rw-r--r-- | fs/xfs/xfs_qm_syscalls.c | 4 | ||||
-rw-r--r-- | fs/xfs/xfs_trans_buf.c | 27 |
7 files changed, 64 insertions, 42 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 26673a0..56d1614 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -175,7 +175,7 @@ xfs_buf_get_maps( bp->b_map_count = map_count; if (map_count == 1) { - bp->b_maps = &bp->b_map; + bp->b_maps = &bp->__b_map; return 0; } @@ -193,7 +193,7 @@ static void xfs_buf_free_maps( struct xfs_buf *bp) { - if (bp->b_maps != &bp->b_map) { + if (bp->b_maps != &bp->__b_map) { kmem_free(bp->b_maps); bp->b_maps = NULL; } @@ -377,8 +377,8 @@ xfs_buf_allocate_memory( } use_alloc_page: - start = BBTOB(bp->b_map.bm_bn) >> PAGE_SHIFT; - end = (BBTOB(bp->b_map.bm_bn + bp->b_length) + PAGE_SIZE - 1) + start = BBTOB(bp->b_maps[0].bm_bn) >> PAGE_SHIFT; + end = (BBTOB(bp->b_maps[0].bm_bn + bp->b_length) + PAGE_SIZE - 1) >> PAGE_SHIFT; page_count = end - start; error = _xfs_buf_get_pages(bp, page_count, flags); @@ -640,7 +640,7 @@ _xfs_buf_read( xfs_buf_flags_t flags) { ASSERT(!(flags & XBF_WRITE)); - ASSERT(bp->b_map.bm_bn != XFS_BUF_DADDR_NULL); + ASSERT(bp->b_maps[0].bm_bn != XFS_BUF_DADDR_NULL); bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); @@ -1709,7 +1709,7 @@ xfs_buf_cmp( struct xfs_buf *bp = container_of(b, struct xfs_buf, b_list); xfs_daddr_t diff; - diff = ap->b_map.bm_bn - bp->b_map.bm_bn; + diff = ap->b_maps[0].bm_bn - bp->b_maps[0].bm_bn; if (diff < 0) return -1; if (diff > 0) diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 23f5642..433a12e 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -151,7 +151,7 @@ typedef struct xfs_buf { struct page **b_pages; /* array of page pointers */ struct page *b_page_array[XB_PAGES]; /* inline pages */ struct xfs_buf_map *b_maps; /* compound buffer map */ - struct xfs_buf_map b_map; /* inline compound buffer map */ + struct xfs_buf_map __b_map; /* inline compound buffer map */ int b_map_count; int b_io_length; /* IO size in BBs */ atomic_t b_pin_count; /* pin count */ @@ -330,8 +330,8 @@ void xfs_buf_stale(struct xfs_buf *bp); * In future, uncached buffers will pass the block number directly to the io * request function and hence these macros will go away at that point. */ -#define XFS_BUF_ADDR(bp) ((bp)->b_map.bm_bn) -#define XFS_BUF_SET_ADDR(bp, bno) ((bp)->b_map.bm_bn = (xfs_daddr_t)(bno)) +#define XFS_BUF_ADDR(bp) ((bp)->b_maps[0].bm_bn) +#define XFS_BUF_SET_ADDR(bp, bno) ((bp)->b_maps[0].bm_bn = (xfs_daddr_t)(bno)) static inline void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref) { diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index becf4a9..77b0975 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -71,7 +71,7 @@ xfs_buf_item_log_debug( chunk_num = byte >> XFS_BLF_SHIFT; word_num = chunk_num >> BIT_TO_WORD_SHIFT; bit_num = chunk_num & (NBWORD - 1); - wordp = &(bip->bli_format.blf_data_map[word_num]); + wordp = &(bip->__bli_format.blf_data_map[word_num]); bit_set = *wordp & (1 << bit_num); ASSERT(bit_set); byte++; @@ -237,7 +237,7 @@ xfs_buf_item_size( * cancel flag in it. */ trace_xfs_buf_item_size_stale(bip); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); return bip->bli_format_count; } @@ -278,7 +278,7 @@ xfs_buf_item_format_segment( uint buffer_offset; /* copy the flags across from the base format item */ - blfp->blf_flags = bip->bli_format.blf_flags; + blfp->blf_flags = bip->__bli_format.blf_flags; /* * Base size is the actual size of the ondisk structure - it reflects @@ -287,6 +287,17 @@ xfs_buf_item_format_segment( */ base_size = offsetof(struct xfs_buf_log_format, blf_data_map) + (blfp->blf_map_size * sizeof(blfp->blf_data_map[0])); + + nvecs = 0; + first_bit = xfs_next_bit(blfp->blf_data_map, blfp->blf_map_size, 0); + if (!(bip->bli_flags & XFS_BLI_STALE) && first_bit == -1) { + /* + * If the map is not be dirty in the transaction, mark + * the size as zero and do not advance the vector pointer. + */ + goto out; + } + vecp->i_addr = blfp; vecp->i_len = base_size; vecp->i_type = XLOG_REG_TYPE_BFORMAT; @@ -301,15 +312,13 @@ xfs_buf_item_format_segment( */ trace_xfs_buf_item_format_stale(bip); ASSERT(blfp->blf_flags & XFS_BLF_CANCEL); - blfp->blf_size = nvecs; - return vecp; + goto out; } /* * Fill in an iovec for each set of contiguous chunks. */ - first_bit = xfs_next_bit(blfp->blf_data_map, blfp->blf_map_size, 0); - ASSERT(first_bit != -1); + last_bit = first_bit; nbits = 1; for (;;) { @@ -371,7 +380,8 @@ xfs_buf_item_format_segment( nbits++; } } - bip->bli_format.blf_size = nvecs; +out: + blfp->blf_size = nvecs; return vecp; } @@ -405,7 +415,7 @@ xfs_buf_item_format( if (bip->bli_flags & XFS_BLI_INODE_BUF) { if (!((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) && xfs_log_item_in_current_chkpt(lip))) - bip->bli_format.blf_flags |= XFS_BLF_INODE_BUF; + bip->__bli_format.blf_flags |= XFS_BLF_INODE_BUF; bip->bli_flags &= ~XFS_BLI_INODE_BUF; } @@ -485,7 +495,7 @@ xfs_buf_item_unpin( ASSERT(bip->bli_flags & XFS_BLI_STALE); ASSERT(xfs_buf_islocked(bp)); ASSERT(XFS_BUF_ISSTALE(bp)); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); trace_xfs_buf_item_unpin_stale(bip); @@ -601,7 +611,7 @@ xfs_buf_item_unlock( { struct xfs_buf_log_item *bip = BUF_ITEM(lip); struct xfs_buf *bp = bip->bli_buf; - int aborted; + int aborted, clean, i; uint hold; /* Clear the buffer's association with this transaction. */ @@ -631,7 +641,7 @@ xfs_buf_item_unlock( */ if (bip->bli_flags & XFS_BLI_STALE) { trace_xfs_buf_item_unlock_stale(bip); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); if (!aborted) { atomic_dec(&bip->bli_refcount); return; @@ -644,8 +654,15 @@ xfs_buf_item_unlock( * If the buf item isn't tracking any data, free it, otherwise drop the * reference we hold to it. */ - if (xfs_bitmap_empty(bip->bli_format.blf_data_map, - bip->bli_format.blf_map_size)) + clean = 1; + for (i = 0; i < bip->bli_format_count; i++) { + if (!xfs_bitmap_empty(bip->bli_formats[i].blf_data_map, + bip->bli_formats[i].blf_map_size)) { + clean = 0; + break; + } + } + if (clean) xfs_buf_item_relse(bp); else atomic_dec(&bip->bli_refcount); @@ -716,7 +733,7 @@ xfs_buf_item_get_format( bip->bli_format_count = count; if (count == 1) { - bip->bli_formats = &bip->bli_format; + bip->bli_formats = &bip->__bli_format; return 0; } @@ -731,7 +748,7 @@ STATIC void xfs_buf_item_free_format( struct xfs_buf_log_item *bip) { - if (bip->bli_formats != &bip->bli_format) { + if (bip->bli_formats != &bip->__bli_format) { kmem_free(bip->bli_formats); bip->bli_formats = NULL; } diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h index 6850f49..16def43 100644 --- a/fs/xfs/xfs_buf_item.h +++ b/fs/xfs/xfs_buf_item.h @@ -104,7 +104,7 @@ typedef struct xfs_buf_log_item { #endif int bli_format_count; /* count of headers */ struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ - struct xfs_buf_log_format bli_format; /* embedded in-log header */ + struct xfs_buf_log_format __bli_format; /* embedded in-log header */ } xfs_buf_log_item_t; void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c index 7536faa..12afe07 100644 --- a/fs/xfs/xfs_dir2_block.c +++ b/fs/xfs/xfs_dir2_block.c @@ -355,10 +355,12 @@ xfs_dir2_block_addname( /* * If need to compact the leaf entries, do it now. */ - if (compact) + if (compact) { xfs_dir2_block_compact(tp, bp, hdr, btp, blp, &needlog, &lfloghigh, &lfloglow); - else if (btp->stale) { + /* recalculate blp post-compaction */ + blp = xfs_dir2_block_leaf_p(btp); + } else if (btp->stale) { /* * Set leaf logging boundaries to impossible state. * For the no-stale case they're set explicitly. diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 5f53e75..8a59f85 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -784,11 +784,11 @@ xfs_qm_scall_getquota( (XFS_IS_OQUOTA_ENFORCED(mp) && (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) && dst->d_id != 0) { - if (((int) dst->d_bcount > (int) dst->d_blk_softlimit) && + if ((dst->d_bcount > dst->d_blk_softlimit) && (dst->d_blk_softlimit > 0)) { ASSERT(dst->d_btimer != 0); } - if (((int) dst->d_icount > (int) dst->d_ino_softlimit) && + if ((dst->d_icount > dst->d_ino_softlimit) && (dst->d_ino_softlimit > 0)) { ASSERT(dst->d_itimer != 0); } diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 4fc17d4..3edf5db 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -93,7 +93,7 @@ _xfs_trans_bjoin( xfs_buf_item_init(bp, tp->t_mountp); bip = bp->b_fspriv; ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED)); if (reset_recur) bip->bli_recur = 0; @@ -432,7 +432,7 @@ xfs_trans_brelse(xfs_trans_t *tp, bip = bp->b_fspriv; ASSERT(bip->bli_item.li_type == XFS_LI_BUF); ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); trace_xfs_trans_brelse(bip); @@ -519,7 +519,7 @@ xfs_trans_bhold(xfs_trans_t *tp, ASSERT(bp->b_transp == tp); ASSERT(bip != NULL); ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); bip->bli_flags |= XFS_BLI_HOLD; @@ -539,7 +539,7 @@ xfs_trans_bhold_release(xfs_trans_t *tp, ASSERT(bp->b_transp == tp); ASSERT(bip != NULL); ASSERT(!(bip->bli_flags & XFS_BLI_STALE)); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL)); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_CANCEL)); ASSERT(atomic_read(&bip->bli_refcount) > 0); ASSERT(bip->bli_flags & XFS_BLI_HOLD); @@ -598,7 +598,7 @@ xfs_trans_log_buf(xfs_trans_t *tp, bip->bli_flags &= ~XFS_BLI_STALE; ASSERT(XFS_BUF_ISSTALE(bp)); XFS_BUF_UNSTALE(bp); - bip->bli_format.blf_flags &= ~XFS_BLF_CANCEL; + bip->__bli_format.blf_flags &= ~XFS_BLF_CANCEL; } tp->t_flags |= XFS_TRANS_DIRTY; @@ -643,6 +643,7 @@ xfs_trans_binval( xfs_buf_t *bp) { xfs_buf_log_item_t *bip = bp->b_fspriv; + int i; ASSERT(bp->b_transp == tp); ASSERT(bip != NULL); @@ -657,8 +658,8 @@ xfs_trans_binval( */ ASSERT(XFS_BUF_ISSTALE(bp)); ASSERT(!(bip->bli_flags & (XFS_BLI_LOGGED | XFS_BLI_DIRTY))); - ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_INODE_BUF)); - ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(!(bip->__bli_format.blf_flags & XFS_BLF_INODE_BUF)); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); ASSERT(bip->bli_item.li_desc->lid_flags & XFS_LID_DIRTY); ASSERT(tp->t_flags & XFS_TRANS_DIRTY); return; @@ -668,10 +669,12 @@ xfs_trans_binval( bip->bli_flags |= XFS_BLI_STALE; bip->bli_flags &= ~(XFS_BLI_INODE_BUF | XFS_BLI_LOGGED | XFS_BLI_DIRTY); - bip->bli_format.blf_flags &= ~XFS_BLF_INODE_BUF; - bip->bli_format.blf_flags |= XFS_BLF_CANCEL; - memset((char *)(bip->bli_format.blf_data_map), 0, - (bip->bli_format.blf_map_size * sizeof(uint))); + bip->__bli_format.blf_flags &= ~XFS_BLF_INODE_BUF; + bip->__bli_format.blf_flags |= XFS_BLF_CANCEL; + for (i = 0; i < bip->bli_format_count; i++) { + memset(bip->bli_formats[i].blf_data_map, 0, + (bip->bli_formats[i].blf_map_size * sizeof(uint))); + } bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY; tp->t_flags |= XFS_TRANS_DIRTY; } @@ -775,5 +778,5 @@ xfs_trans_dquot_buf( type == XFS_BLF_GDQUOT_BUF); ASSERT(atomic_read(&bip->bli_refcount) > 0); - bip->bli_format.blf_flags |= type; + bip->__bli_format.blf_flags |= type; } |