diff options
Diffstat (limited to 'fs/xfs/xfs_dir2_sf.c')
| -rw-r--r-- | fs/xfs/xfs_dir2_sf.c | 338 |
1 files changed, 200 insertions, 138 deletions
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c index b1bae6b..79d05e8 100644 --- a/fs/xfs/xfs_dir2_sf.c +++ b/fs/xfs/xfs_dir2_sf.c @@ -23,18 +23,16 @@ #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dir2.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" -#include "xfs_dir2_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_inode_item.h" #include "xfs_error.h" -#include "xfs_dir2_data.h" -#include "xfs_dir2_leaf.h" -#include "xfs_dir2_block.h" +#include "xfs_dir2.h" +#include "xfs_dir2_format.h" +#include "xfs_dir2_priv.h" #include "xfs_trace.h" /* @@ -60,6 +58,82 @@ static void xfs_dir2_sf_toino8(xfs_da_args_t *args); #endif /* XFS_BIG_INUMS */ /* + * Inode numbers in short-form directories can come in two versions, + * either 4 bytes or 8 bytes wide. These helpers deal with the + * two forms transparently by looking at the headers i8count field. + * + * For 64-bit inode number the most significant byte must be zero. + */ +static xfs_ino_t +xfs_dir2_sf_get_ino( + struct xfs_dir2_sf_hdr *hdr, + xfs_dir2_inou_t *from) +{ + if (hdr->i8count) + return get_unaligned_be64(&from->i8.i) & 0x00ffffffffffffffULL; + else + return get_unaligned_be32(&from->i4.i); +} + +static void +xfs_dir2_sf_put_ino( + struct xfs_dir2_sf_hdr *hdr, + xfs_dir2_inou_t *to, + xfs_ino_t ino) +{ + ASSERT((ino & 0xff00000000000000ULL) == 0); + + if (hdr->i8count) + put_unaligned_be64(ino, &to->i8.i); + else + put_unaligned_be32(ino, &to->i4.i); +} + +xfs_ino_t +xfs_dir2_sf_get_parent_ino( + struct xfs_dir2_sf_hdr *hdr) +{ + return xfs_dir2_sf_get_ino(hdr, &hdr->parent); +} + +static void +xfs_dir2_sf_put_parent_ino( + struct xfs_dir2_sf_hdr *hdr, + xfs_ino_t ino) +{ + xfs_dir2_sf_put_ino(hdr, &hdr->parent, ino); +} + +/* + * In short-form directory entries the inode numbers are stored at variable + * offset behind the entry name. The inode numbers may only be accessed + * through the helpers below. + */ +static xfs_dir2_inou_t * +xfs_dir2_sfe_inop( + struct xfs_dir2_sf_entry *sfep) +{ + return (xfs_dir2_inou_t *)&sfep->name[sfep->namelen]; +} + +xfs_ino_t +xfs_dir2_sfe_get_ino( + struct xfs_dir2_sf_hdr *hdr, + struct xfs_dir2_sf_entry *sfep) +{ + return xfs_dir2_sf_get_ino(hdr, xfs_dir2_sfe_inop(sfep)); +} + +static void +xfs_dir2_sfe_put_ino( + struct xfs_dir2_sf_hdr *hdr, + struct xfs_dir2_sf_entry *sfep, + xfs_ino_t ino) +{ + xfs_dir2_sf_put_ino(hdr, xfs_dir2_sfe_inop(sfep), ino); +} + +/* * Given a block directory (dp/block), calculate its size as a shortform (sf) * directory and a header for the sf directory, if it will fit it the * space currently present in the inode. If it won't fit, the output @@ -68,7 +142,7 @@ static void xfs_dir2_sf_toino8(xfs_da_args_t *args); int /* size for sf form */ xfs_dir2_block_sfsize( xfs_inode_t *dp, /* incore inode pointer */ - xfs_dir2_block_t *block, /* block directory data */ + xfs_dir2_data_hdr_t *hdr, /* block directory data */ xfs_dir2_sf_hdr_t *sfhp) /* output: header for sf form */ { xfs_dir2_dataptr_t addr; /* data entry address */ @@ -88,7 +162,7 @@ xfs_dir2_block_sfsize( mp = dp->i_mount; count = i8count = namelen = 0; - btp = xfs_dir2_block_tail_p(mp, block); + btp = xfs_dir2_block_tail_p(mp, hdr); blp = xfs_dir2_block_leaf_p(btp); /* @@ -101,7 +175,7 @@ xfs_dir2_block_sfsize( * Calculate the pointer to the entry at hand. */ dep = (xfs_dir2_data_entry_t *) - ((char *)block + xfs_dir2_dataptr_to_off(mp, addr)); + ((char *)hdr + xfs_dir2_dataptr_to_off(mp, addr)); /* * Detect . and .., so we can special-case them. * . is not included in sf directories. @@ -138,7 +212,7 @@ xfs_dir2_block_sfsize( */ sfhp->count = count; sfhp->i8count = i8count; - xfs_dir2_sf_put_inumber((xfs_dir2_sf_t *)sfhp, &parent, &sfhp->parent); + xfs_dir2_sf_put_parent_ino(sfhp, parent); return size; } @@ -153,7 +227,7 @@ xfs_dir2_block_to_sf( int size, /* shortform directory size */ xfs_dir2_sf_hdr_t *sfhp) /* shortform directory hdr */ { - xfs_dir2_block_t *block; /* block structure */ + xfs_dir2_data_hdr_t *hdr; /* block header */ xfs_dir2_block_tail_t *btp; /* block tail pointer */ xfs_dir2_data_entry_t *dep; /* data entry pointer */ xfs_inode_t *dp; /* incore directory inode */ @@ -164,8 +238,7 @@ xfs_dir2_block_to_sf( xfs_mount_t *mp; /* filesystem mount point */ char *ptr; /* current data pointer */ xfs_dir2_sf_entry_t *sfep; /* shortform entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ - xfs_ino_t temp; + xfs_dir2_sf_hdr_t *sfp; /* shortform directory header */ trace_xfs_dir2_block_to_sf(args); @@ -176,13 +249,14 @@ xfs_dir2_block_to_sf( * Make a copy of the block data, so we can shrink the inode * and add local data. */ - block = kmem_alloc(mp->m_dirblksize, KM_SLEEP); - memcpy(block, bp->data, mp->m_dirblksize); + hdr = kmem_alloc(mp->m_dirblksize, KM_SLEEP); + memcpy(hdr, bp->data, mp->m_dirblksize); logflags = XFS_ILOG_CORE; if ((error = xfs_dir2_shrink_inode(args, mp->m_dirdatablk, bp))) { ASSERT(error != ENOSPC); goto out; } + /* * The buffer is now unconditionally gone, whether * xfs_dir2_shrink_inode worked or not. @@ -198,14 +272,14 @@ xfs_dir2_block_to_sf( /* * Copy the header into the newly allocate local space. */ - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; memcpy(sfp, sfhp, xfs_dir2_sf_hdr_size(sfhp->i8count)); dp->i_d.di_size = size; /* * Set up to loop over the block's entries. */ - btp = xfs_dir2_block_tail_p(mp, block); - ptr = (char *)block->u; + btp = xfs_dir2_block_tail_p(mp, hdr); + ptr = (char *)(hdr + 1); endptr = (char *)xfs_dir2_block_leaf_p(btp); sfep = xfs_dir2_sf_firstentry(sfp); /* @@ -233,7 +307,7 @@ xfs_dir2_block_to_sf( else if (dep->namelen == 2 && dep->name[0] == '.' && dep->name[1] == '.') ASSERT(be64_to_cpu(dep->inumber) == - xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent)); + xfs_dir2_sf_get_parent_ino(sfp)); /* * Normal entry, copy it into shortform. */ @@ -241,11 +315,11 @@ xfs_dir2_block_to_sf( sfep->namelen = dep->namelen; xfs_dir2_sf_put_offset(sfep, (xfs_dir2_data_aoff_t) - ((char *)dep - (char *)block)); + ((char *)dep - (char *)hdr)); memcpy(sfep->name, dep->name, dep->namelen); - temp = be64_to_cpu(dep->inumber); - xfs_dir2_sf_put_inumber(sfp, &temp, - xfs_dir2_sf_inumberp(sfep)); + xfs_dir2_sfe_put_ino(sfp, sfep, + be64_to_cpu(dep->inumber)); + sfep = xfs_dir2_sf_nextentry(sfp, sfep); } ptr += xfs_dir2_data_entsize(dep->namelen); @@ -254,7 +328,7 @@ xfs_dir2_block_to_sf( xfs_dir2_sf_check(args); out: xfs_trans_log_inode(args->trans, dp, logflags); - kmem_free(block); + kmem_free(hdr); return error; } @@ -277,7 +351,7 @@ xfs_dir2_sf_addname( xfs_dir2_data_aoff_t offset = 0; /* offset for new entry */ int old_isize; /* di_size before adding name */ int pick; /* which algorithm to use */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ xfs_dir2_sf_entry_t *sfep = NULL; /* shortform entry */ trace_xfs_dir2_sf_addname(args); @@ -294,19 +368,19 @@ xfs_dir2_sf_addname( } ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count)); + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * Compute entry (and change in) size. */ - add_entsize = xfs_dir2_sf_entsize_byname(sfp, args->namelen); + add_entsize = xfs_dir2_sf_entsize(sfp, args->namelen); incr_isize = add_entsize; objchange = 0; #if XFS_BIG_INUMS /* * Do we have to change to 8 byte inodes? */ - if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->hdr.i8count == 0) { + if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { /* * Yes, adjust the entry size and the total size. */ @@ -314,7 +388,7 @@ xfs_dir2_sf_addname( (uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t); incr_isize += - (sfp->hdr.count + 2) * + (sfp->count + 2) * ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); objchange = 1; @@ -384,21 +458,21 @@ xfs_dir2_sf_addname_easy( { int byteoff; /* byte offset in sf dir */ xfs_inode_t *dp; /* incore directory inode */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ dp = args->dp; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; byteoff = (int)((char *)sfep - (char *)sfp); /* * Grow the in-inode space. */ - xfs_idata_realloc(dp, xfs_dir2_sf_entsize_byname(sfp, args->namelen), + xfs_idata_realloc(dp, xfs_dir2_sf_entsize(sfp, args->namelen), XFS_DATA_FORK); /* * Need to set up again due to realloc of the inode data. */ - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; sfep = (xfs_dir2_sf_entry_t *)((char *)sfp + byteoff); /* * Fill in the new entry. @@ -406,15 +480,14 @@ xfs_dir2_sf_addname_easy( sfep->namelen = args->namelen; xfs_dir2_sf_put_offset(sfep, offset); memcpy(sfep->name, args->name, sfep->namelen); - xfs_dir2_sf_put_inumber(sfp, &args->inumber, - xfs_dir2_sf_inumberp(sfep)); + xfs_dir2_sfe_put_ino(sfp, sfep, args->inumber); /* * Update the header and inode. */ - sfp->hdr.count++; + sfp->count++; #if XFS_BIG_INUMS if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) - sfp->hdr.i8count++; + sfp->i8count++; #endif dp->i_d.di_size = new_isize; xfs_dir2_sf_check(args); @@ -444,19 +517,19 @@ xfs_dir2_sf_addname_hard( xfs_dir2_data_aoff_t offset; /* current offset value */ int old_isize; /* previous di_size */ xfs_dir2_sf_entry_t *oldsfep; /* entry in original dir */ - xfs_dir2_sf_t *oldsfp; /* original shortform dir */ + xfs_dir2_sf_hdr_t *oldsfp; /* original shortform dir */ xfs_dir2_sf_entry_t *sfep; /* entry in new dir */ - xfs_dir2_sf_t *sfp; /* new shortform dir */ + xfs_dir2_sf_hdr_t *sfp; /* new shortform dir */ /* * Copy the old directory to the stack buffer. */ dp = args->dp; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; old_isize = (int)dp->i_d.di_size; buf = kmem_alloc(old_isize, KM_SLEEP); - oldsfp = (xfs_dir2_sf_t *)buf; + oldsfp = (xfs_dir2_sf_hdr_t *)buf; memcpy(oldsfp, sfp, old_isize); /* * Loop over the old directory finding the place we're going @@ -485,7 +558,7 @@ xfs_dir2_sf_addname_hard( /* * Reset the pointer since the buffer was reallocated. */ - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; /* * Copy the first part of the directory, including the header. */ @@ -498,12 +571,11 @@ xfs_dir2_sf_addname_hard( sfep->namelen = args->namelen; xfs_dir2_sf_put_offset(sfep, offset); memcpy(sfep->name, args->name, sfep->namelen); - xfs_dir2_sf_put_inumber(sfp, &args->inumber, - xfs_dir2_sf_inumberp(sfep)); - sfp->hdr.count++; + xfs_dir2_sfe_put_ino(sfp, sfep, args->inumber); + sfp->count++; #if XFS_BIG_INUMS if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange) - sfp->hdr.i8count++; + sfp->i8count++; #endif /* * If there's more left to copy, do that. @@ -537,14 +609,14 @@ xfs_dir2_sf_addname_pick( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_data_aoff_t offset; /* data block offset */ xfs_dir2_sf_entry_t *sfep; /* shortform entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ int size; /* entry's data size */ int used; /* data bytes used */ dp = args->dp; mp = dp->i_mount; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; size = xfs_dir2_data_entsize(args->namelen); offset = XFS_DIR2_DATA_FIRST_OFFSET; sfep = xfs_dir2_sf_firstentry(sfp); @@ -554,7 +626,7 @@ xfs_dir2_sf_addname_pick( * Keep track of data offset and whether we've seen a place * to insert the new entry. */ - for (i = 0; i < sfp->hdr.count; i++) { + for (i = 0; i < sfp->count; i++) { if (!holefit) holefit = offset + size <= xfs_dir2_sf_get_offset(sfep); offset = xfs_dir2_sf_get_offset(sfep) + @@ -566,7 +638,7 @@ xfs_dir2_sf_addname_pick( * was a data block (block form directory). */ used = offset + - (sfp->hdr.count + 3) * (uint)sizeof(xfs_dir2_leaf_entry_t) + + (sfp->count + 3) * (uint)sizeof(xfs_dir2_leaf_entry_t) + (uint)sizeof(xfs_dir2_block_tail_t); /* * If it won't fit in a block form then we can't insert it, @@ -612,30 +684,30 @@ xfs_dir2_sf_check( xfs_ino_t ino; /* entry inode number */ int offset; /* data offset */ xfs_dir2_sf_entry_t *sfep; /* shortform dir entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ dp = args->dp; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; offset = XFS_DIR2_DATA_FIRST_OFFSET; - ino = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent); + ino = xfs_dir2_sf_get_parent_ino(sfp); i8count = ino > XFS_DIR2_MAX_SHORT_INUM; for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); - i < sfp->hdr.count; + i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) { ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset); - ino = xfs_dir2_sf_get_inumber(sfp, xfs_dir2_sf_inumberp(sfep)); + ino = xfs_dir2_sfe_get_ino(sfp, sfep); i8count += ino > XFS_DIR2_MAX_SHORT_INUM; offset = xfs_dir2_sf_get_offset(sfep) + xfs_dir2_data_entsize(sfep->namelen); } - ASSERT(i8count == sfp->hdr.i8count); + ASSERT(i8count == sfp->i8count); ASSERT(XFS_BIG_INUMS || i8count == 0); ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size); ASSERT(offset + - (sfp->hdr.count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) + + (sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) + (uint)sizeof(xfs_dir2_block_tail_t) <= dp->i_mount->m_dirblksize); } @@ -651,7 +723,7 @@ xfs_dir2_sf_create( { xfs_inode_t *dp; /* incore directory inode */ int i8count; /* parent inode is an 8-byte number */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ int size; /* directory size */ trace_xfs_dir2_sf_create(args); @@ -681,13 +753,13 @@ xfs_dir2_sf_create( /* * Fill in the header, */ - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - sfp->hdr.i8count = i8count; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + sfp->i8count = i8count; /* * Now can put in the inode number, since i8count is set. */ - xfs_dir2_sf_put_inumber(sfp, &pino, &sfp->hdr.parent); - sfp->hdr.count = 0; + xfs_dir2_sf_put_parent_ino(sfp, pino); + sfp->count = 0; dp->i_d.di_size = size; xfs_dir2_sf_check(args); xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_DDATA); @@ -705,7 +777,7 @@ xfs_dir2_sf_getdents( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_dataptr_t off; /* current entry's offset */ xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ xfs_dir2_dataptr_t dot_offset; xfs_dir2_dataptr_t dotdot_offset; xfs_ino_t ino; @@ -724,9 +796,9 @@ xfs_dir2_sf_getdents( ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; - ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count)); + ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * If the block number in the offset is out of range, we're done. @@ -759,7 +831,7 @@ xfs_dir2_sf_getdents( * Put .. entry unless we're starting past it. */ if (*offset <= dotdot_offset) { - ino = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent); + ino = xfs_dir2_sf_get_parent_ino(sfp); if (filldir(dirent, "..", 2, dotdot_offset & 0x7fffffff, ino, DT_DIR)) { *offset = dotdot_offset & 0x7fffffff; return 0; @@ -770,7 +842,7 @@ xfs_dir2_sf_getdents( * Loop while there are more entries and put'ing works. */ sfep = xfs_dir2_sf_firstentry(sfp); - for (i = 0; i < sfp->hdr.count; i++) { + for (i = 0; i < sfp->count; i++) { off = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk, xfs_dir2_sf_get_offset(sfep)); @@ -779,7 +851,7 @@ xfs_dir2_sf_getdents( continue; } - ino = xfs_dir2_sf_get_inumber(sfp, xfs_dir2_sf_inumberp(sfep)); + ino = xfs_dir2_sfe_get_ino(sfp, sfep); if (filldir(dirent, (char *)sfep->name, sfep->namelen, off & 0x7fffffff, ino, DT_UNKNOWN)) { *offset = off & 0x7fffffff; @@ -805,7 +877,7 @@ xfs_dir2_sf_lookup( int i; /* entry index */ int error; xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ enum xfs_dacmp cmp; /* comparison result */ xfs_dir2_sf_entry_t *ci_sfep; /* case-insens. entry */ @@ -824,8 +896,8 @@ xfs_dir2_sf_lookup( } ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count)); + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * Special case for . */ @@ -839,7 +911,7 @@ xfs_dir2_sf_lookup( */ if (args->namelen == 2 && args->name[0] == '.' && args->name[1] == '.') { - args->inumber = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent); + args->inumber = xfs_dir2_sf_get_parent_ino(sfp); args->cmpresult = XFS_CMP_EXACT; return XFS_ERROR(EEXIST); } @@ -847,7 +919,7 @@ xfs_dir2_sf_lookup( * Loop over all the entries trying to match ours. */ ci_sfep = NULL; - for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->hdr.count; + for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) { /* * Compare name and if it's an exact match, return the inode @@ -858,8 +930,7 @@ xfs_dir2_sf_lookup( sfep->namelen); if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) { args->cmpresult = cmp; - args->inumber = xfs_dir2_sf_get_inumber(sfp, - xfs_dir2_sf_inumberp(sfep)); + args->inumber = xfs_dir2_sfe_get_ino(sfp, sfep); if (cmp == XFS_CMP_EXACT) return XFS_ERROR(EEXIST); ci_sfep = sfep; @@ -891,7 +962,7 @@ xfs_dir2_sf_removename( int newsize; /* new inode size */ int oldsize; /* old inode size */ xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ trace_xfs_dir2_sf_removename(args); @@ -908,32 +979,31 @@ xfs_dir2_sf_removename( } ASSERT(dp->i_df.if_bytes == oldsize); ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(oldsize >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count)); + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(oldsize >= xfs_dir2_sf_hdr_size(sfp->i8count)); /* * Loop over the old directory entries. * Find the one we're deleting. */ - for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->hdr.count; + for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) { if (xfs_da_compname(args, sfep->name, sfep->namelen) == XFS_CMP_EXACT) { - ASSERT(xfs_dir2_sf_get_inumber(sfp, - xfs_dir2_sf_inumberp(sfep)) == - args->inumber); + ASSERT(xfs_dir2_sfe_get_ino(sfp, sfep) == + args->inumber); break; } } /* * Didn't find it. */ - if (i == sfp->hdr.count) + if (i == sfp->count) return XFS_ERROR(ENOENT); /* * Calculate sizes. */ byteoff = (int)((char *)sfep - (char *)sfp); - entsize = xfs_dir2_sf_entsize_byname(sfp, args->namelen); + entsize = xfs_dir2_sf_entsize(sfp, args->namelen); newsize = oldsize - entsize; /* * Copy the part if any after the removed entry, sliding it down. @@ -944,22 +1014,22 @@ xfs_dir2_sf_removename( /* * Fix up the header and file size. */ - sfp->hdr.count--; + sfp->count--; dp->i_d.di_size = newsize; /* * Reallocate, making it smaller. */ xfs_idata_realloc(dp, newsize - oldsize, XFS_DATA_FORK); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; #if XFS_BIG_INUMS /* * Are we changing inode number size? */ if (args->inumber > XFS_DIR2_MAX_SHORT_INUM) { - if (sfp->hdr.i8count == 1) + if (sfp->i8count == 1) xfs_dir2_sf_toino4(args); else - sfp->hdr.i8count--; + sfp->i8count--; } #endif xfs_dir2_sf_check(args); @@ -983,7 +1053,7 @@ xfs_dir2_sf_replace( int i8elevated; /* sf_toino8 set i8count=1 */ #endif xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ - xfs_dir2_sf_t *sfp; /* shortform structure */ + xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ trace_xfs_dir2_sf_replace(args); @@ -999,19 +1069,19 @@ xfs_dir2_sf_replace( } ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); ASSERT(dp->i_df.if_u1.if_data != NULL); - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->hdr.i8count)); + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count)); #if XFS_BIG_INUMS /* * New inode number is large, and need to convert to 8-byte inodes. */ - if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->hdr.i8count == 0) { + if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) { int error; /* error return value */ int newsize; /* new inode size */ newsize = dp->i_df.if_bytes + - (sfp->hdr.count + 1) * + (sfp->count + 1) * ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); /* @@ -1029,7 +1099,7 @@ xfs_dir2_sf_replace( */ xfs_dir2_sf_toino8(args); i8elevated = 1; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; } else i8elevated = 0; #endif @@ -1040,34 +1110,32 @@ xfs_dir2_sf_replace( if (args->namelen == 2 && args->name[0] == '.' && args->name[1] == '.') { #if XFS_BIG_INUMS || defined(DEBUG) - ino = xfs_dir2_sf_get_inumber(sfp, &sfp->hdr.parent); + ino = xfs_dir2_sf_get_parent_ino(sfp); ASSERT(args->inumber != ino); #endif - xfs_dir2_sf_put_inumber(sfp, &args->inumber, &sfp->hdr.parent); + xfs_dir2_sf_put_parent_ino(sfp, args->inumber); } /* * Normal entry, look for the name. */ else { for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); - i < sfp->hdr.count; + i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) { if (xfs_da_compname(args, sfep->name, sfep->namelen) == XFS_CMP_EXACT) { #if XFS_BIG_INUMS || defined(DEBUG) - ino = xfs_dir2_sf_get_inumber(sfp, - xfs_dir2_sf_inumberp(sfep)); + ino = xfs_dir2_sfe_get_ino(sfp, sfep); ASSERT(args->inumber != ino); #endif - xfs_dir2_sf_put_inumber(sfp, &args->inumber, - xfs_dir2_sf_inumberp(sfep)); + xfs_dir2_sfe_put_ino(sfp, sfep, args->inumber); break; } } /* * Didn't find it. */ - if (i == sfp->hdr.count) { + if (i == sfp->count) { ASSERT(args->op_flags & XFS_DA_OP_OKNOENT); #if XFS_BIG_INUMS if (i8elevated) @@ -1085,10 +1153,10 @@ xfs_dir2_sf_replace( /* * And the old count was one, so need to convert to small. */ - if (sfp->hdr.i8count == 1) + if (sfp->i8count == 1) xfs_dir2_sf_toino4(args); else - sfp->hdr.i8count--; + sfp->i8count--; } /* * See if the old number was small, the new number is large. @@ -1099,9 +1167,9 @@ xfs_dir2_sf_replace( * add to the i8count unless we just converted to 8-byte * inodes (which does an implied i8count = 1) */ - ASSERT(sfp->hdr.i8count != 0); + ASSERT(sfp->i8count != 0); if (!i8elevated) - sfp->hdr.i8count++; + sfp->i8count++; } #endif xfs_dir2_sf_check(args); @@ -1121,13 +1189,12 @@ xfs_dir2_sf_toino4( char *buf; /* old dir's buffer */ xfs_inode_t *dp; /* incore directory inode */ int i; /* entry index */ - xfs_ino_t ino; /* entry inode number */ int newsize; /* new inode size */ xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ - xfs_dir2_sf_t *oldsfp; /* old sf directory */ + 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_t *sfp; /* new sf directory */ + xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ trace_xfs_dir2_sf_toino4(args); @@ -1140,44 +1207,42 @@ xfs_dir2_sf_toino4( */ oldsize = dp->i_df.if_bytes; buf = kmem_alloc(oldsize, KM_SLEEP); - oldsfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(oldsfp->hdr.i8count == 1); + oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(oldsfp->i8count == 1); memcpy(buf, oldsfp, oldsize); /* * Compute the new inode size. */ newsize = oldsize - - (oldsfp->hdr.count + 1) * + (oldsfp->count + 1) * ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK); xfs_idata_realloc(dp, newsize, XFS_DATA_FORK); /* * Reset our pointers, the data has moved. */ - oldsfp = (xfs_dir2_sf_t *)buf; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + oldsfp = (xfs_dir2_sf_hdr_t *)buf; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; /* * Fill in the new header. */ - sfp->hdr.count = oldsfp->hdr.count; - sfp->hdr.i8count = 0; - ino = xfs_dir2_sf_get_inumber(oldsfp, &oldsfp->hdr.parent); - xfs_dir2_sf_put_inumber(sfp, &ino, &sfp->hdr.parent); + sfp->count = oldsfp->count; + sfp->i8count = 0; + xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp)); /* * Copy the entries field by field. */ for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), oldsfep = xfs_dir2_sf_firstentry(oldsfp); - i < sfp->hdr.count; + i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep), oldsfep = xfs_dir2_sf_nextentry(oldsfp, oldsfep)) { sfep->namelen = oldsfep->namelen; sfep->offset = oldsfep->offset; memcpy(sfep->name, oldsfep->name, sfep->namelen); - ino = xfs_dir2_sf_get_inumber(oldsfp, - xfs_dir2_sf_inumberp(oldsfep)); - xfs_dir2_sf_put_inumber(sfp, &ino, xfs_dir2_sf_inumberp(sfep)); + xfs_dir2_sfe_put_ino(sfp, sfep, + xfs_dir2_sfe_get_ino(oldsfp, oldsfep)); } /* * Clean up the inode. @@ -1199,13 +1264,12 @@ xfs_dir2_sf_toino8( char *buf; /* old dir's buffer */ xfs_inode_t *dp; /* incore directory inode */ int i; /* entry index */ - xfs_ino_t ino; /* entry inode number */ int newsize; /* new inode size */ xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ - xfs_dir2_sf_t *oldsfp; /* old sf directory */ + 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_t *sfp; /* new sf directory */ + xfs_dir2_sf_hdr_t *sfp; /* new sf directory */ trace_xfs_dir2_sf_toino8(args); @@ -1218,44 +1282,42 @@ xfs_dir2_sf_toino8( */ oldsize = dp->i_df.if_bytes; buf = kmem_alloc(oldsize, KM_SLEEP); - oldsfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - ASSERT(oldsfp->hdr.i8count == 0); + oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + ASSERT(oldsfp->i8count == 0); memcpy(buf, oldsfp, oldsize); /* * Compute the new inode size. */ newsize = oldsize + - (oldsfp->hdr.count + 1) * + (oldsfp->count + 1) * ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t)); xfs_idata_realloc(dp, -oldsize, XFS_DATA_FORK); xfs_idata_realloc(dp, newsize, XFS_DATA_FORK); /* * Reset our pointers, the data has moved. */ - oldsfp = (xfs_dir2_sf_t *)buf; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; + oldsfp = (xfs_dir2_sf_hdr_t *)buf; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; /* * Fill in the new header. */ - sfp->hdr.count = oldsfp->hdr.count; - sfp->hdr.i8count = 1; - ino = xfs_dir2_sf_get_inumber(oldsfp, &oldsfp->hdr.parent); - xfs_dir2_sf_put_inumber(sfp, &ino, &sfp->hdr.parent); + sfp->count = oldsfp->count; + sfp->i8count = 1; + xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp)); /* * Copy the entries field by field. */ for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), oldsfep = xfs_dir2_sf_firstentry(oldsfp); - i < sfp->hdr.count; + i < sfp->count; i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep), oldsfep = xfs_dir2_sf_nextentry(oldsfp, oldsfep)) { sfep->namelen = oldsfep->namelen; sfep->offset = oldsfep->offset; memcpy(sfep->name, oldsfep->name, sfep->namelen); - ino = xfs_dir2_sf_get_inumber(oldsfp, - xfs_dir2_sf_inumberp(oldsfep)); - xfs_dir2_sf_put_inumber(sfp, &ino, xfs_dir2_sf_inumberp(sfep)); + xfs_dir2_sfe_put_ino(sfp, sfep, + xfs_dir2_sfe_get_ino(oldsfp, oldsfep)); } /* * Clean up the inode. |
