diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_dir2_sf.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_dir2_sf.c | 61 |
1 files changed, 24 insertions, 37 deletions
diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c index 870ef1d1ebe4..0b63138d2b9f 100644 --- a/fs/xfs/libxfs/xfs_dir2_sf.c +++ b/fs/xfs/libxfs/xfs_dir2_sf.c @@ -364,25 +364,23 @@ int /* error */ xfs_dir2_sf_addname( xfs_da_args_t *args) /* operation arguments */ { - xfs_inode_t *dp; /* incore directory inode */ + struct xfs_inode *dp = args->dp; + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int error; /* error return value */ int incr_isize; /* total change in size */ int new_isize; /* size after adding name */ int objchange; /* changing to 8-byte inodes */ xfs_dir2_data_aoff_t offset = 0; /* offset for new entry */ int pick; /* which algorithm to use */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ xfs_dir2_sf_entry_t *sfep = NULL; /* shortform entry */ trace_xfs_dir2_sf_addname(args); ASSERT(xfs_dir2_sf_lookup(args) == -ENOENT); - dp = args->dp; ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); ASSERT(dp->i_disk_size >= offsetof(struct xfs_dir2_sf_hdr, parent)); ASSERT(dp->i_df.if_bytes == dp->i_disk_size); - ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(sfp != NULL); ASSERT(dp->i_disk_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * Compute entry (and change in) size. @@ -462,11 +460,9 @@ xfs_dir2_sf_addname_easy( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; - int byteoff; /* byte offset in sf dir */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; + int byteoff = (int)((char *)sfep - (char *)sfp); - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; - byteoff = (int)((char *)sfep - (char *)sfp); /* * Grow the in-inode space. */ @@ -475,7 +471,7 @@ xfs_dir2_sf_addname_easy( /* * Need to set up again due to realloc of the inode data. */ - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + byteoff); /* * Fill in the new entry. @@ -528,11 +524,10 @@ xfs_dir2_sf_addname_hard( /* * Copy the old directory to the stack buffer. */ - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; old_isize = (int)dp->i_disk_size; buf = kmem_alloc(old_isize, 0); oldsfp = (xfs_dir2_sf_hdr_t *)buf; - memcpy(oldsfp, sfp, old_isize); + memcpy(oldsfp, dp->i_df.if_data, old_isize); /* * Loop over the old directory finding the place we're going * to insert the new entry. @@ -560,7 +555,7 @@ xfs_dir2_sf_addname_hard( /* * Reset the pointer since the buffer was reallocated. */ - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; /* * Copy the first part of the directory, including the header. */ @@ -610,11 +605,10 @@ xfs_dir2_sf_addname_pick( int i; /* entry number */ xfs_dir2_data_aoff_t offset; /* data block offset */ xfs_dir2_sf_entry_t *sfep; /* shortform entry */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int size; /* entry's data size */ int used; /* data bytes used */ - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; size = xfs_dir2_data_entsize(mp, args->namelen); offset = args->geo->data_first_offset; sfep = xfs_dir2_sf_firstentry(sfp); @@ -673,14 +667,13 @@ xfs_dir2_sf_check( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int i; /* entry number */ int i8count; /* number of big inode#s */ xfs_ino_t ino; /* entry inode number */ int offset; /* data offset */ xfs_dir2_sf_entry_t *sfep; /* shortform dir entry */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; offset = args->geo->data_first_offset; ino = xfs_dir2_sf_get_parent_ino(sfp); i8count = ino > XFS_DIR2_MAX_SHORT_INUM; @@ -834,7 +827,7 @@ xfs_dir2_sf_create( /* * Fill in the header, */ - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; sfp->i8count = i8count; /* * Now can put in the inode number, since i8count is set. @@ -857,9 +850,9 @@ xfs_dir2_sf_lookup( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int i; /* entry index */ xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ enum xfs_dacmp cmp; /* comparison result */ xfs_dir2_sf_entry_t *ci_sfep; /* case-insens. entry */ @@ -870,8 +863,7 @@ xfs_dir2_sf_lookup( ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); ASSERT(dp->i_disk_size >= offsetof(struct xfs_dir2_sf_hdr, parent)); ASSERT(dp->i_df.if_bytes == dp->i_disk_size); - ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(sfp != NULL); ASSERT(dp->i_disk_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * Special case for . @@ -933,13 +925,13 @@ xfs_dir2_sf_removename( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int byteoff; /* offset of removed entry */ int entsize; /* this entry's size */ int i; /* shortform entry index */ int newsize; /* new inode size */ int oldsize; /* old inode size */ xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ trace_xfs_dir2_sf_removename(args); @@ -947,8 +939,7 @@ xfs_dir2_sf_removename( oldsize = (int)dp->i_disk_size; ASSERT(oldsize >= offsetof(struct xfs_dir2_sf_hdr, parent)); ASSERT(dp->i_df.if_bytes == oldsize); - ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(sfp != NULL); ASSERT(oldsize >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * Loop over the old directory entries. @@ -989,7 +980,7 @@ xfs_dir2_sf_removename( * Reallocate, making it smaller. */ xfs_idata_realloc(dp, newsize - oldsize, XFS_DATA_FORK); - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; /* * Are we changing inode number size? */ @@ -1012,13 +1003,12 @@ xfs_dir2_sf_replace_needblock( struct xfs_inode *dp, xfs_ino_t inum) { + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int newsize; - struct xfs_dir2_sf_hdr *sfp; if (dp->i_df.if_format != XFS_DINODE_FMT_LOCAL) return false; - sfp = (struct xfs_dir2_sf_hdr *)dp->i_df.if_u1.if_data; newsize = dp->i_df.if_bytes + (sfp->count + 1) * XFS_INO64_DIFF; return inum > XFS_DIR2_MAX_SHORT_INUM && @@ -1034,19 +1024,18 @@ xfs_dir2_sf_replace( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; + struct xfs_dir2_sf_hdr *sfp = dp->i_df.if_data; int i; /* entry index */ xfs_ino_t ino=0; /* entry old inode number */ int i8elevated; /* sf_toino8 set i8count=1 */ xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ trace_xfs_dir2_sf_replace(args); ASSERT(dp->i_df.if_format == XFS_DINODE_FMT_LOCAL); ASSERT(dp->i_disk_size >= offsetof(struct xfs_dir2_sf_hdr, parent)); ASSERT(dp->i_df.if_bytes == dp->i_disk_size); - ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(sfp != NULL); ASSERT(dp->i_disk_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* @@ -1069,7 +1058,7 @@ xfs_dir2_sf_replace( */ xfs_dir2_sf_toino8(args); i8elevated = 1; - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; } else i8elevated = 0; @@ -1150,11 +1139,11 @@ xfs_dir2_sf_toino4( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; + struct xfs_dir2_sf_hdr *oldsfp = dp->i_df.if_data; char *buf; /* old dir's buffer */ int i; /* entry index */ int newsize; /* new inode size */ xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ - xfs_dir2_sf_hdr_t *oldsfp; /* old sf directory */ int oldsize; /* old inode size */ xfs_dir2_sf_entry_t *sfep; /* new sf entry */ xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ @@ -1168,7 +1157,6 @@ xfs_dir2_sf_toino4( */ oldsize = dp->i_df.if_bytes; buf = kmem_alloc(oldsize, 0); - oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; ASSERT(oldsfp->i8count == 1); memcpy(buf, oldsfp, oldsize); /* @@ -1181,7 +1169,7 @@ xfs_dir2_sf_toino4( * Reset our pointers, the data has moved. */ oldsfp = (xfs_dir2_sf_hdr_t *)buf; - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; /* * Fill in the new header. */ @@ -1223,11 +1211,11 @@ xfs_dir2_sf_toino8( { struct xfs_inode *dp = args->dp; struct xfs_mount *mp = dp->i_mount; + struct xfs_dir2_sf_hdr *oldsfp = dp->i_df.if_data; char *buf; /* old dir's buffer */ int i; /* entry index */ int newsize; /* new inode size */ xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ - xfs_dir2_sf_hdr_t *oldsfp; /* old sf directory */ int oldsize; /* old inode size */ xfs_dir2_sf_entry_t *sfep; /* new sf entry */ xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ @@ -1241,7 +1229,6 @@ xfs_dir2_sf_toino8( */ oldsize = dp->i_df.if_bytes; buf = kmem_alloc(oldsize, 0); - oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; ASSERT(oldsfp->i8count == 0); memcpy(buf, oldsfp, oldsize); /* @@ -1254,7 +1241,7 @@ xfs_dir2_sf_toino8( * Reset our pointers, the data has moved. */ oldsfp = (xfs_dir2_sf_hdr_t *)buf; - sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp = dp->i_df.if_data; /* * Fill in the new header. */ |