diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_dir2.c')
-rw-r--r-- | fs/xfs/libxfs/xfs_dir2.c | 94 |
1 files changed, 58 insertions, 36 deletions
diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 50546eadaae2..92bac3373f1f 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -19,7 +19,11 @@ #include "xfs_error.h" #include "xfs_trace.h" -struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR }; +const struct xfs_name xfs_name_dotdot = { + .name = (const unsigned char *)"..", + .len = 2, + .type = XFS_DIR3_FT_DIR, +}; /* * Convert inode mode to directory entry filetype @@ -54,10 +58,10 @@ xfs_mode_to_ftype( */ xfs_dahash_t xfs_ascii_ci_hashname( - struct xfs_name *name) + const struct xfs_name *name) { - xfs_dahash_t hash; - int i; + xfs_dahash_t hash; + int i; for (i = 0, hash = 0; i < name->len; i++) hash = tolower(name->name[i]) ^ rol32(hash, 7); @@ -146,6 +150,8 @@ xfs_da_mount( dageo->freeblk = xfs_dir2_byte_to_da(dageo, XFS_DIR2_FREE_OFFSET); dageo->node_ents = (dageo->blksize - dageo->node_hdr_size) / (uint)sizeof(xfs_da_node_entry_t); + dageo->max_extents = (XFS_DIR2_MAX_SPACES * XFS_DIR2_SPACE_SIZE) >> + mp->m_sb.sb_blocklog; dageo->magicpct = (dageo->blksize * 37) / 100; /* set up attribute geometry - single fsb only */ @@ -157,6 +163,12 @@ xfs_da_mount( dageo->node_hdr_size = mp->m_dir_geo->node_hdr_size; dageo->node_ents = (dageo->blksize - dageo->node_hdr_size) / (uint)sizeof(xfs_da_node_entry_t); + + if (xfs_has_large_extent_counts(mp)) + dageo->max_extents = XFS_MAX_EXTCNT_ATTR_FORK_LARGE; + else + dageo->max_extents = XFS_MAX_EXTCNT_ATTR_FORK_SMALL; + dageo->magicpct = (dageo->blksize * 37) / 100; return 0; } @@ -181,7 +193,7 @@ xfs_dir_isempty( ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); if (dp->i_disk_size == 0) /* might happen during shutdown. */ return 1; - if (dp->i_disk_size > XFS_IFORK_DSIZE(dp)) + if (dp->i_disk_size > xfs_inode_data_fork_size(dp)) return 0; sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; return !sfp->count; @@ -243,13 +255,13 @@ int xfs_dir_createname( struct xfs_trans *tp, struct xfs_inode *dp, - struct xfs_name *name, + const struct xfs_name *name, xfs_ino_t inum, /* new entry inode number */ xfs_extlen_t total) /* bmap's total block count */ { struct xfs_da_args *args; int rval; - int v; /* type-checking value */ + bool v; ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); @@ -337,16 +349,16 @@ xfs_dir_cilookup_result( int xfs_dir_lookup( - xfs_trans_t *tp, - xfs_inode_t *dp, - struct xfs_name *name, - xfs_ino_t *inum, /* out: inode number */ - struct xfs_name *ci_name) /* out: actual name if CI match */ + struct xfs_trans *tp, + struct xfs_inode *dp, + const struct xfs_name *name, + xfs_ino_t *inum, /* out: inode number */ + struct xfs_name *ci_name) /* out: actual name if CI match */ { - struct xfs_da_args *args; - int rval; - int v; /* type-checking value */ - int lock_mode; + struct xfs_da_args *args; + int rval; + bool v; + int lock_mode; ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); XFS_STATS_INC(dp->i_mount, xs_dir_lookup); @@ -423,7 +435,7 @@ xfs_dir_removename( { struct xfs_da_args *args; int rval; - int v; /* type-checking value */ + bool v; ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); XFS_STATS_INC(dp->i_mount, xs_dir_remove); @@ -475,13 +487,13 @@ int xfs_dir_replace( struct xfs_trans *tp, struct xfs_inode *dp, - struct xfs_name *name, /* name of entry to replace */ + const struct xfs_name *name, /* name of entry to replace */ xfs_ino_t inum, /* new inode number */ xfs_extlen_t total) /* bmap's total block count */ { struct xfs_da_args *args; int rval; - int v; /* type-checking value */ + bool v; ASSERT(S_ISDIR(VFS_I(dp)->i_mode)); @@ -598,19 +610,23 @@ xfs_dir2_grow_inode( int xfs_dir2_isblock( struct xfs_da_args *args, - int *vp) /* out: 1 is block, 0 is not block */ + bool *isblock) { - xfs_fileoff_t last; /* last file offset */ - int rval; + struct xfs_mount *mp = args->dp->i_mount; + xfs_fileoff_t eof; + int error; - if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK))) - return rval; - rval = XFS_FSB_TO_B(args->dp->i_mount, last) == args->geo->blksize; - if (XFS_IS_CORRUPT(args->dp->i_mount, - rval != 0 && - args->dp->i_disk_size != args->geo->blksize)) + error = xfs_bmap_last_offset(args->dp, &eof, XFS_DATA_FORK); + if (error) + return error; + + *isblock = false; + if (XFS_FSB_TO_B(mp, eof) != args->geo->blksize) + return 0; + + *isblock = true; + if (XFS_IS_CORRUPT(mp, args->dp->i_disk_size != args->geo->blksize)) return -EFSCORRUPTED; - *vp = rval; return 0; } @@ -620,14 +636,20 @@ xfs_dir2_isblock( int xfs_dir2_isleaf( struct xfs_da_args *args, - int *vp) /* out: 1 is block, 0 is not block */ + bool *isleaf) { - xfs_fileoff_t last; /* last file offset */ - int rval; + xfs_fileoff_t eof; + int error; - if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK))) - return rval; - *vp = last == args->geo->leafblk + args->geo->fsbcount; + error = xfs_bmap_last_offset(args->dp, &eof, XFS_DATA_FORK); + if (error) + return error; + + *isleaf = false; + if (eof != args->geo->leafblk + args->geo->fsbcount) + return 0; + + *isleaf = true; return 0; } @@ -728,7 +750,7 @@ xfs_dir2_namecheck( xfs_dahash_t xfs_dir2_hashname( struct xfs_mount *mp, - struct xfs_name *name) + const struct xfs_name *name) { if (unlikely(xfs_has_asciici(mp))) return xfs_ascii_ci_hashname(name); |