diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/xfs_dir2.c | 50 | ||||
| -rw-r--r-- | fs/xfs/xfs_dir2.h | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_dir2_readdir.c | 85 |
3 files changed, 65 insertions, 74 deletions
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c index 97f1802..07aa390 100644 --- a/fs/xfs/xfs_dir2.c +++ b/fs/xfs/xfs_dir2.c @@ -282,7 +282,7 @@ xfs_dir_createname( goto out_free; } - rval = xfs_dir2_isblock(dp, &v); + rval = xfs_dir2_isblock(args, &v); if (rval) goto out_free; if (v) { @@ -290,7 +290,7 @@ xfs_dir_createname( goto out_free; } - rval = xfs_dir2_isleaf(dp, &v); + rval = xfs_dir2_isleaf(args, &v); if (rval) goto out_free; if (v) @@ -375,7 +375,7 @@ xfs_dir_lookup( goto out_check_rval; } - rval = xfs_dir2_isblock(dp, &v); + rval = xfs_dir2_isblock(args, &v); if (rval) goto out_free; if (v) { @@ -383,7 +383,7 @@ xfs_dir_lookup( goto out_check_rval; } - rval = xfs_dir2_isleaf(dp, &v); + rval = xfs_dir2_isleaf(args, &v); if (rval) goto out_free; if (v) @@ -448,7 +448,7 @@ xfs_dir_removename( goto out_free; } - rval = xfs_dir2_isblock(dp, &v); + rval = xfs_dir2_isblock(args, &v); if (rval) goto out_free; if (v) { @@ -456,7 +456,7 @@ xfs_dir_removename( goto out_free; } - rval = xfs_dir2_isleaf(dp, &v); + rval = xfs_dir2_isleaf(args, &v); if (rval) goto out_free; if (v) @@ -513,7 +513,7 @@ xfs_dir_replace( goto out_free; } - rval = xfs_dir2_isblock(dp, &v); + rval = xfs_dir2_isblock(args, &v); if (rval) goto out_free; if (v) { @@ -521,7 +521,7 @@ xfs_dir_replace( goto out_free; } - rval = xfs_dir2_isleaf(dp, &v); + rval = xfs_dir2_isleaf(args, &v); if (rval) goto out_free; if (v) @@ -573,7 +573,7 @@ xfs_dir_canenter( goto out_free; } - rval = xfs_dir2_isblock(dp, &v); + rval = xfs_dir2_isblock(args, &v); if (rval) goto out_free; if (v) { @@ -581,7 +581,7 @@ xfs_dir_canenter( goto out_free; } - rval = xfs_dir2_isleaf(dp, &v); + rval = xfs_dir2_isleaf(args, &v); if (rval) goto out_free; if (v) @@ -649,18 +649,16 @@ xfs_dir2_grow_inode( */ int xfs_dir2_isblock( - xfs_inode_t *dp, - int *vp) /* out: 1 is block, 0 is not block */ + struct xfs_da_args *args, + int *vp) /* out: 1 is block, 0 is not block */ { - xfs_fileoff_t last; /* last file offset */ - xfs_mount_t *mp; - int rval; + xfs_fileoff_t last; /* last file offset */ + int rval; - mp = dp->i_mount; - if ((rval = xfs_bmap_last_offset(dp, &last, XFS_DATA_FORK))) + if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK))) return rval; - rval = XFS_FSB_TO_B(mp, last) == mp->m_dir_geo->blksize; - ASSERT(rval == 0 || dp->i_d.di_size == mp->m_dir_geo->blksize); + rval = XFS_FSB_TO_B(args->dp->i_mount, last) == args->geo->blksize; + ASSERT(rval == 0 || args->dp->i_d.di_size == args->geo->blksize); *vp = rval; return 0; } @@ -670,17 +668,15 @@ xfs_dir2_isblock( */ int xfs_dir2_isleaf( - xfs_inode_t *dp, - int *vp) /* out: 1 is leaf, 0 is not leaf */ + struct xfs_da_args *args, + int *vp) /* out: 1 is block, 0 is not block */ { - xfs_fileoff_t last; /* last file offset */ - xfs_mount_t *mp; - int rval; + xfs_fileoff_t last; /* last file offset */ + int rval; - mp = dp->i_mount; - if ((rval = xfs_bmap_last_offset(dp, &last, XFS_DATA_FORK))) + if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK))) return rval; - *vp = last == mp->m_dir_geo->leafblk + (1 << mp->m_sb.sb_dirblklog); + *vp = last == args->geo->leafblk + args->geo->fsbcount; return 0; } diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h index 9b709ae..1292e78 100644 --- a/fs/xfs/xfs_dir2.h +++ b/fs/xfs/xfs_dir2.h @@ -146,8 +146,8 @@ extern int xfs_dir2_sf_to_block(struct xfs_da_args *args); /* * Interface routines used by userspace utilities */ -extern int xfs_dir2_isblock(struct xfs_inode *dp, int *r); -extern int xfs_dir2_isleaf(struct xfs_inode *dp, int *r); +extern int xfs_dir2_isblock(struct xfs_da_args *args, int *r); +extern int xfs_dir2_isleaf(struct xfs_da_args *args, int *r); extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db, struct xfs_buf *bp); diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c index fa393d5..ca1f43c 100644 --- a/fs/xfs/xfs_dir2_readdir.c +++ b/fs/xfs/xfs_dir2_readdir.c @@ -76,28 +76,25 @@ const unsigned char xfs_mode_to_ftype[S_IFMT >> S_SHIFT] = { STATIC int xfs_dir2_sf_getdents( - xfs_inode_t *dp, /* incore directory inode */ + struct xfs_da_args *args, struct dir_context *ctx) { int i; /* shortform entry number */ - xfs_mount_t *mp; /* filesystem mount point */ + struct xfs_inode *dp = args->dp; /* incore directory inode */ xfs_dir2_dataptr_t off; /* current entry's offset */ xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ xfs_dir2_dataptr_t dot_offset; xfs_dir2_dataptr_t dotdot_offset; xfs_ino_t ino; - struct xfs_da_geometry *geo; - - mp = dp->i_mount; - geo = mp->m_dir_geo; + struct xfs_da_geometry *geo = args->geo; ASSERT(dp->i_df.if_flags & XFS_IFINLINE); /* * Give up if the directory is way too short. */ if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { - ASSERT(XFS_FORCED_SHUTDOWN(mp)); + ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); return XFS_ERROR(EIO); } @@ -163,13 +160,13 @@ xfs_dir2_sf_getdents( filetype = dp->d_ops->sf_get_ftype(sfep); ctx->pos = off & 0x7fffffff; if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino, - xfs_dir3_get_dtype(mp, filetype))) + xfs_dir3_get_dtype(dp->i_mount, filetype))) return 0; sfep = dp->d_ops->sf_nextentry(sfp, sfep); } ctx->pos = xfs_dir2_db_off_to_dataptr(geo, geo->datablk + 1, 0) & - 0x7fffffff; + 0x7fffffff; return 0; } @@ -178,9 +175,10 @@ xfs_dir2_sf_getdents( */ STATIC int xfs_dir2_block_getdents( - xfs_inode_t *dp, /* incore inode */ + struct xfs_da_args *args, struct dir_context *ctx) { + struct xfs_inode *dp = args->dp; /* incore directory inode */ xfs_dir2_data_hdr_t *hdr; /* block header */ struct xfs_buf *bp; /* buffer for block */ xfs_dir2_block_tail_t *btp; /* block tail */ @@ -188,14 +186,11 @@ xfs_dir2_block_getdents( xfs_dir2_data_unused_t *dup; /* block unused entry */ char *endptr; /* end of the data entries */ int error; /* error return value */ - xfs_mount_t *mp; /* filesystem mount point */ char *ptr; /* current data entry */ int wantoff; /* starting block offset */ xfs_off_t cook; - struct xfs_da_geometry *geo; + struct xfs_da_geometry *geo = args->geo; - mp = dp->i_mount; - geo = mp->m_dir_geo; /* * If the block number in the offset is out of range, we're done. */ @@ -258,7 +253,7 @@ xfs_dir2_block_getdents( */ if (!dir_emit(ctx, (char *)dep->name, dep->namelen, be64_to_cpu(dep->inumber), - xfs_dir3_get_dtype(mp, filetype))) { + xfs_dir3_get_dtype(dp->i_mount, filetype))) { xfs_trans_brelse(NULL, bp); return 0; } @@ -269,7 +264,7 @@ xfs_dir2_block_getdents( * Set the offset to a non-existent block 1 and return. */ ctx->pos = xfs_dir2_db_off_to_dataptr(geo, geo->datablk + 1, 0) & - 0x7fffffff; + 0x7fffffff; xfs_trans_brelse(NULL, bp); return 0; } @@ -290,13 +285,13 @@ struct xfs_dir2_leaf_map_info { STATIC int xfs_dir2_leaf_readbuf( - struct xfs_inode *dp, + struct xfs_da_args *args, size_t bufsize, struct xfs_dir2_leaf_map_info *mip, xfs_dir2_off_t *curoff, struct xfs_buf **bpp) { - struct xfs_mount *mp = dp->i_mount; + struct xfs_inode *dp = args->dp; struct xfs_buf *bp = *bpp; struct xfs_bmbt_irec *map = mip->map; struct blk_plug plug; @@ -304,7 +299,7 @@ xfs_dir2_leaf_readbuf( int length; int i; int j; - struct xfs_da_geometry *geo = mp->m_dir_geo; + struct xfs_da_geometry *geo = args->geo; /* * If we have a buffer, we need to release it and @@ -338,8 +333,7 @@ xfs_dir2_leaf_readbuf( /* * Recalculate the readahead blocks wanted. */ - mip->ra_want = howmany(bufsize + geo->blksize, - mp->m_sb.sb_blocksize) - 1; + mip->ra_want = howmany(bufsize + geo->blksize, (1 << geo->fsblog)) - 1; ASSERT(mip->ra_want >= 0); /* @@ -411,8 +405,8 @@ xfs_dir2_leaf_readbuf( mip->curdb = xfs_dir2_da_to_db(geo, map->br_startoff); error = xfs_dir3_data_read(NULL, dp, map->br_startoff, map->br_blockcount >= geo->fsbcount ? - XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1, &bp); - + XFS_FSB_TO_DADDR(dp->i_mount, map->br_startblock) : + -1, &bp); /* * Should just skip over the data block instead of giving up. */ @@ -441,7 +435,7 @@ xfs_dir2_leaf_readbuf( map[mip->ra_index].br_blockcount >= geo->fsbcount) { xfs_dir3_data_readahead(dp, map[mip->ra_index].br_startoff + mip->ra_offset, - XFS_FSB_TO_DADDR(mp, + XFS_FSB_TO_DADDR(dp->i_mount, map[mip->ra_index].br_startblock + mip->ra_offset)); mip->ra_current = i; @@ -493,23 +487,23 @@ out: */ STATIC int xfs_dir2_leaf_getdents( - xfs_inode_t *dp, /* incore directory inode */ + struct xfs_da_args *args, struct dir_context *ctx, size_t bufsize) { + struct xfs_inode *dp = args->dp; struct xfs_buf *bp = NULL; /* data block buffer */ xfs_dir2_data_hdr_t *hdr; /* data block header */ xfs_dir2_data_entry_t *dep; /* data entry */ xfs_dir2_data_unused_t *dup; /* unused entry */ int error = 0; /* error return value */ int length; /* temporary length value */ - xfs_mount_t *mp; /* filesystem mount point */ int byteoff; /* offset in current block */ xfs_dir2_off_t curoff; /* current overall offset */ xfs_dir2_off_t newoff; /* new curoff after new blk */ char *ptr = NULL; /* pointer to current data */ struct xfs_dir2_leaf_map_info *map_info; - struct xfs_da_geometry *geo; + struct xfs_da_geometry *geo = args->geo; /* * If the offset is at or past the largest allowed value, @@ -518,15 +512,12 @@ xfs_dir2_leaf_getdents( if (ctx->pos >= XFS_DIR2_MAX_DATAPTR) return 0; - mp = dp->i_mount; - geo = mp->m_dir_geo; - /* * Set up to bmap a number of blocks based on the caller's * buffer size, the directory block size, and the filesystem * block size. */ - length = howmany(bufsize + geo->blksize, mp->m_sb.sb_blocksize); + length = howmany(bufsize + geo->blksize, (1 << geo->fsblog)); map_info = kmem_zalloc(offsetof(struct xfs_dir2_leaf_map_info, map) + (length * sizeof(struct xfs_bmbt_irec)), KM_SLEEP | KM_NOFS); @@ -558,7 +549,7 @@ xfs_dir2_leaf_getdents( */ if (!bp || ptr >= (char *)bp->b_addr + geo->blksize) { - error = xfs_dir2_leaf_readbuf(dp, bufsize, map_info, + error = xfs_dir2_leaf_readbuf(args, bufsize, map_info, &curoff, &bp); if (error || !map_info->map_valid) break; @@ -566,7 +557,7 @@ xfs_dir2_leaf_getdents( /* * Having done a read, we need to set a new offset. */ - newoff = xfs_dir2_db_off_to_byte(mp->m_dir_geo, + newoff = xfs_dir2_db_off_to_byte(geo, map_info->curdb, 0); /* * Start of the current block. @@ -585,7 +576,7 @@ xfs_dir2_leaf_getdents( * Find our position in the block. */ ptr = (char *)dp->d_ops->data_entry_p(hdr); - byteoff = xfs_dir2_byte_to_off(mp->m_dir_geo, curoff); + byteoff = xfs_dir2_byte_to_off(geo, curoff); /* * Skip past the header. */ @@ -644,7 +635,7 @@ xfs_dir2_leaf_getdents( ctx->pos = xfs_dir2_byte_to_dataptr(curoff) & 0x7fffffff; if (!dir_emit(ctx, (char *)dep->name, dep->namelen, be64_to_cpu(dep->inumber), - xfs_dir3_get_dtype(mp, filetype))) + xfs_dir3_get_dtype(dp->i_mount, filetype))) break; /* @@ -674,13 +665,14 @@ xfs_dir2_leaf_getdents( */ int xfs_readdir( - xfs_inode_t *dp, - struct dir_context *ctx, - size_t bufsize) + struct xfs_inode *dp, + struct dir_context *ctx, + size_t bufsize) { - int rval; /* return value */ - int v; /* type-checking value */ - uint lock_mode; + struct xfs_da_args args = {0}; + int rval; + int v; + uint lock_mode; trace_xfs_readdir(dp); @@ -690,15 +682,18 @@ xfs_readdir( ASSERT(S_ISDIR(dp->i_d.di_mode)); XFS_STATS_INC(xs_dir_getdents); + args.dp = dp; + args.geo = dp->i_mount->m_dir_geo; + lock_mode = xfs_ilock_data_map_shared(dp); if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) - rval = xfs_dir2_sf_getdents(dp, ctx); - else if ((rval = xfs_dir2_isblock(dp, &v))) + rval = xfs_dir2_sf_getdents(&args, ctx); + else if ((rval = xfs_dir2_isblock(&args, &v))) ; else if (v) - rval = xfs_dir2_block_getdents(dp, ctx); + rval = xfs_dir2_block_getdents(&args, ctx); else - rval = xfs_dir2_leaf_getdents(dp, ctx, bufsize); + rval = xfs_dir2_leaf_getdents(&args, ctx, bufsize); xfs_iunlock(dp, lock_mode); return rval; |