aboutsummaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_dir2_sf.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/xfs_dir2_sf.c')
-rw-r--r--fs/xfs/xfs_dir2_sf.c240
1 files changed, 94 insertions, 146 deletions
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 97676a347da1..bb6e2848f473 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -29,8 +29,8 @@
#include "xfs_inode.h"
#include "xfs_inode_item.h"
#include "xfs_error.h"
-#include "xfs_dir2.h"
#include "xfs_dir2_format.h"
+#include "xfs_dir2.h"
#include "xfs_dir2_priv.h"
#include "xfs_trace.h"
@@ -95,7 +95,7 @@ xfs_dir2_sf_get_parent_ino(
return xfs_dir2_sf_get_ino(hdr, &hdr->parent);
}
-static void
+void
xfs_dir2_sf_put_parent_ino(
struct xfs_dir2_sf_hdr *hdr,
xfs_ino_t ino)
@@ -105,31 +105,38 @@ xfs_dir2_sf_put_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.
+ * offset behind the entry name. If the entry stores a filetype value, then it
+ * sits between the name and the inode number. Hence the inode numbers may only
+ * be accessed through the helpers below.
*/
static xfs_dir2_inou_t *
-xfs_dir2_sfe_inop(
+xfs_dir3_sfe_inop(
+ struct xfs_mount *mp,
struct xfs_dir2_sf_entry *sfep)
{
- return (xfs_dir2_inou_t *)&sfep->name[sfep->namelen];
+ __uint8_t *ptr = &sfep->name[sfep->namelen];
+ if (xfs_sb_version_hasftype(&mp->m_sb))
+ ptr++;
+ return (xfs_dir2_inou_t *)ptr;
}
xfs_ino_t
-xfs_dir2_sfe_get_ino(
+xfs_dir3_sfe_get_ino(
+ struct xfs_mount *mp,
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep)
{
- return xfs_dir2_sf_get_ino(hdr, xfs_dir2_sfe_inop(sfep));
+ return xfs_dir2_sf_get_ino(hdr, xfs_dir3_sfe_inop(mp, sfep));
}
-static void
-xfs_dir2_sfe_put_ino(
+void
+xfs_dir3_sfe_put_ino(
+ struct xfs_mount *mp,
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);
+ xfs_dir2_sf_put_ino(hdr, xfs_dir3_sfe_inop(mp, sfep), ino);
}
/*
@@ -157,9 +164,16 @@ xfs_dir2_block_sfsize(
int namelen; /* total name bytes */
xfs_ino_t parent = 0; /* parent inode number */
int size=0; /* total computed size */
+ int has_ftype;
mp = dp->i_mount;
+ /*
+ * if there is a filetype field, add the extra byte to the namelen
+ * for each entry that we see.
+ */
+ has_ftype = xfs_sb_version_hasftype(&mp->m_sb) ? 1 : 0;
+
count = i8count = namelen = 0;
btp = xfs_dir2_block_tail_p(mp, hdr);
blp = xfs_dir2_block_leaf_p(btp);
@@ -188,9 +202,10 @@ xfs_dir2_block_sfsize(
if (!isdot)
i8count += be64_to_cpu(dep->inumber) > XFS_DIR2_MAX_SHORT_INUM;
#endif
+ /* take into account the file type field */
if (!isdot && !isdotdot) {
count++;
- namelen += dep->namelen;
+ namelen += dep->namelen + has_ftype;
} else if (isdotdot)
parent = be64_to_cpu(dep->inumber);
/*
@@ -316,12 +331,14 @@ xfs_dir2_block_to_sf(
(xfs_dir2_data_aoff_t)
((char *)dep - (char *)hdr));
memcpy(sfep->name, dep->name, dep->namelen);
- xfs_dir2_sfe_put_ino(sfp, sfep,
+ xfs_dir3_sfe_put_ino(mp, sfp, sfep,
be64_to_cpu(dep->inumber));
+ xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
+ xfs_dir3_dirent_get_ftype(mp, dep));
- sfep = xfs_dir2_sf_nextentry(sfp, sfep);
+ sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
}
- ptr += xfs_dir2_data_entsize(dep->namelen);
+ ptr += xfs_dir3_data_entsize(mp, dep->namelen);
}
ASSERT((char *)sfep - (char *)sfp == size);
xfs_dir2_sf_check(args);
@@ -372,7 +389,7 @@ xfs_dir2_sf_addname(
/*
* Compute entry (and change in) size.
*/
- add_entsize = xfs_dir2_sf_entsize(sfp, args->namelen);
+ add_entsize = xfs_dir3_sf_entsize(dp->i_mount, sfp, args->namelen);
incr_isize = add_entsize;
objchange = 0;
#if XFS_BIG_INUMS
@@ -466,8 +483,9 @@ xfs_dir2_sf_addname_easy(
/*
* Grow the in-inode space.
*/
- xfs_idata_realloc(dp, xfs_dir2_sf_entsize(sfp, args->namelen),
- XFS_DATA_FORK);
+ xfs_idata_realloc(dp,
+ xfs_dir3_sf_entsize(dp->i_mount, sfp, args->namelen),
+ XFS_DATA_FORK);
/*
* Need to set up again due to realloc of the inode data.
*/
@@ -479,7 +497,9 @@ 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_sfe_put_ino(sfp, sfep, args->inumber);
+ xfs_dir3_sfe_put_ino(dp->i_mount, sfp, sfep, args->inumber);
+ xfs_dir3_sfe_put_ftype(dp->i_mount, sfp, sfep, args->filetype);
+
/*
* Update the header and inode.
*/
@@ -519,11 +539,13 @@ xfs_dir2_sf_addname_hard(
xfs_dir2_sf_hdr_t *oldsfp; /* original shortform dir */
xfs_dir2_sf_entry_t *sfep; /* entry in new dir */
xfs_dir2_sf_hdr_t *sfp; /* new shortform dir */
+ struct xfs_mount *mp;
/*
* Copy the old directory to the stack buffer.
*/
dp = args->dp;
+ mp = dp->i_mount;
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
old_isize = (int)dp->i_d.di_size;
@@ -535,13 +557,13 @@ xfs_dir2_sf_addname_hard(
* to insert the new entry.
* If it's going to end up at the end then oldsfep will point there.
*/
- for (offset = XFS_DIR3_DATA_FIRST_OFFSET(dp->i_mount),
+ for (offset = XFS_DIR3_DATA_FIRST_OFFSET(mp),
oldsfep = xfs_dir2_sf_firstentry(oldsfp),
- add_datasize = xfs_dir2_data_entsize(args->namelen),
+ add_datasize = xfs_dir3_data_entsize(mp, args->namelen),
eof = (char *)oldsfep == &buf[old_isize];
!eof;
- offset = new_offset + xfs_dir2_data_entsize(oldsfep->namelen),
- oldsfep = xfs_dir2_sf_nextentry(oldsfp, oldsfep),
+ offset = new_offset + xfs_dir3_data_entsize(mp, oldsfep->namelen),
+ oldsfep = xfs_dir3_sf_nextentry(mp, oldsfp, oldsfep),
eof = (char *)oldsfep == &buf[old_isize]) {
new_offset = xfs_dir2_sf_get_offset(oldsfep);
if (offset + add_datasize <= new_offset)
@@ -570,7 +592,8 @@ 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_sfe_put_ino(sfp, sfep, args->inumber);
+ xfs_dir3_sfe_put_ino(mp, sfp, sfep, args->inumber);
+ xfs_dir3_sfe_put_ftype(mp, sfp, sfep, args->filetype);
sfp->count++;
#if XFS_BIG_INUMS
if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange)
@@ -580,7 +603,7 @@ xfs_dir2_sf_addname_hard(
* If there's more left to copy, do that.
*/
if (!eof) {
- sfep = xfs_dir2_sf_nextentry(sfp, sfep);
+ sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
memcpy(sfep, oldsfep, old_isize - nbytes);
}
kmem_free(buf);
@@ -616,7 +639,7 @@ xfs_dir2_sf_addname_pick(
mp = dp->i_mount;
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
- size = xfs_dir2_data_entsize(args->namelen);
+ size = xfs_dir3_data_entsize(mp, args->namelen);
offset = XFS_DIR3_DATA_FIRST_OFFSET(mp);
sfep = xfs_dir2_sf_firstentry(sfp);
holefit = 0;
@@ -629,8 +652,8 @@ xfs_dir2_sf_addname_pick(
if (!holefit)
holefit = offset + size <= xfs_dir2_sf_get_offset(sfep);
offset = xfs_dir2_sf_get_offset(sfep) +
- xfs_dir2_data_entsize(sfep->namelen);
- sfep = xfs_dir2_sf_nextentry(sfp, sfep);
+ xfs_dir3_data_entsize(mp, sfep->namelen);
+ sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
}
/*
* Calculate data bytes used excluding the new entry, if this
@@ -684,31 +707,34 @@ xfs_dir2_sf_check(
int offset; /* data offset */
xfs_dir2_sf_entry_t *sfep; /* shortform dir entry */
xfs_dir2_sf_hdr_t *sfp; /* shortform structure */
+ struct xfs_mount *mp;
dp = args->dp;
+ mp = dp->i_mount;
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
- offset = XFS_DIR3_DATA_FIRST_OFFSET(dp->i_mount);
+ offset = XFS_DIR3_DATA_FIRST_OFFSET(mp);
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->count;
- i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+ i++, sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep)) {
ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset);
- ino = xfs_dir2_sfe_get_ino(sfp, sfep);
+ ino = xfs_dir3_sfe_get_ino(mp, sfp, sfep);
i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
offset =
xfs_dir2_sf_get_offset(sfep) +
- xfs_dir2_data_entsize(sfep->namelen);
+ xfs_dir3_data_entsize(mp, sfep->namelen);
+ ASSERT(xfs_dir3_sfe_get_ftype(mp, sfp, sfep) <
+ XFS_DIR3_FT_MAX);
}
ASSERT(i8count == sfp->i8count);
ASSERT(XFS_BIG_INUMS || i8count == 0);
ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size);
ASSERT(offset +
(sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) +
- (uint)sizeof(xfs_dir2_block_tail_t) <=
- dp->i_mount->m_dirblksize);
+ (uint)sizeof(xfs_dir2_block_tail_t) <= mp->m_dirblksize);
}
#endif /* DEBUG */
@@ -765,100 +791,6 @@ xfs_dir2_sf_create(
return 0;
}
-int /* error */
-xfs_dir2_sf_getdents(
- xfs_inode_t *dp, /* incore directory inode */
- struct dir_context *ctx)
-{
- int i; /* shortform entry number */
- 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_hdr_t *sfp; /* shortform structure */
- xfs_dir2_dataptr_t dot_offset;
- xfs_dir2_dataptr_t dotdot_offset;
- xfs_ino_t ino;
-
- mp = dp->i_mount;
-
- 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));
- return XFS_ERROR(EIO);
- }
-
- ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
- ASSERT(dp->i_df.if_u1.if_data != NULL);
-
- 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 the block number in the offset is out of range, we're done.
- */
- if (xfs_dir2_dataptr_to_db(mp, ctx->pos) > mp->m_dirdatablk)
- return 0;
-
- /*
- * Precalculate offsets for . and .. as we will always need them.
- *
- * XXX(hch): the second argument is sometimes 0 and sometimes
- * mp->m_dirdatablk.
- */
- dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
- XFS_DIR3_DATA_DOT_OFFSET(mp));
- dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
- XFS_DIR3_DATA_DOTDOT_OFFSET(mp));
-
- /*
- * Put . entry unless we're starting past it.
- */
- if (ctx->pos <= dot_offset) {
- ctx->pos = dot_offset & 0x7fffffff;
- if (!dir_emit(ctx, ".", 1, dp->i_ino, DT_DIR))
- return 0;
- }
-
- /*
- * Put .. entry unless we're starting past it.
- */
- if (ctx->pos <= dotdot_offset) {
- ino = xfs_dir2_sf_get_parent_ino(sfp);
- ctx->pos = dotdot_offset & 0x7fffffff;
- if (!dir_emit(ctx, "..", 2, ino, DT_DIR))
- return 0;
- }
-
- /*
- * Loop while there are more entries and put'ing works.
- */
- sfep = xfs_dir2_sf_firstentry(sfp);
- for (i = 0; i < sfp->count; i++) {
- off = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
- xfs_dir2_sf_get_offset(sfep));
-
- if (ctx->pos > off) {
- sfep = xfs_dir2_sf_nextentry(sfp, sfep);
- continue;
- }
-
- ino = xfs_dir2_sfe_get_ino(sfp, sfep);
- ctx->pos = off & 0x7fffffff;
- if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen,
- ino, DT_UNKNOWN))
- return 0;
- sfep = xfs_dir2_sf_nextentry(sfp, sfep);
- }
-
- ctx->pos = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
- 0x7fffffff;
- return 0;
-}
-
/*
* Lookup an entry in a shortform directory.
* Returns EEXIST if found, ENOENT if not found.
@@ -898,6 +830,7 @@ xfs_dir2_sf_lookup(
if (args->namelen == 1 && args->name[0] == '.') {
args->inumber = dp->i_ino;
args->cmpresult = XFS_CMP_EXACT;
+ args->filetype = XFS_DIR3_FT_DIR;
return XFS_ERROR(EEXIST);
}
/*
@@ -907,6 +840,7 @@ xfs_dir2_sf_lookup(
args->name[0] == '.' && args->name[1] == '.') {
args->inumber = xfs_dir2_sf_get_parent_ino(sfp);
args->cmpresult = XFS_CMP_EXACT;
+ args->filetype = XFS_DIR3_FT_DIR;
return XFS_ERROR(EEXIST);
}
/*
@@ -914,7 +848,7 @@ xfs_dir2_sf_lookup(
*/
ci_sfep = NULL;
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
- i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+ i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
/*
* Compare name and if it's an exact match, return the inode
* number. If it's the first case-insensitive match, store the
@@ -924,7 +858,10 @@ xfs_dir2_sf_lookup(
sfep->namelen);
if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
args->cmpresult = cmp;
- args->inumber = xfs_dir2_sfe_get_ino(sfp, sfep);
+ args->inumber = xfs_dir3_sfe_get_ino(dp->i_mount,
+ sfp, sfep);
+ args->filetype = xfs_dir3_sfe_get_ftype(dp->i_mount,
+ sfp, sfep);
if (cmp == XFS_CMP_EXACT)
return XFS_ERROR(EEXIST);
ci_sfep = sfep;
@@ -980,10 +917,10 @@ xfs_dir2_sf_removename(
* Find the one we're deleting.
*/
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
- i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+ i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
XFS_CMP_EXACT) {
- ASSERT(xfs_dir2_sfe_get_ino(sfp, sfep) ==
+ ASSERT(xfs_dir3_sfe_get_ino(dp->i_mount, sfp, sfep) ==
args->inumber);
break;
}
@@ -997,7 +934,7 @@ xfs_dir2_sf_removename(
* Calculate sizes.
*/
byteoff = (int)((char *)sfep - (char *)sfp);
- entsize = xfs_dir2_sf_entsize(sfp, args->namelen);
+ entsize = xfs_dir3_sf_entsize(dp->i_mount, sfp, args->namelen);
newsize = oldsize - entsize;
/*
* Copy the part if any after the removed entry, sliding it down.
@@ -1113,16 +1050,19 @@ xfs_dir2_sf_replace(
* Normal entry, look for the name.
*/
else {
- for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
- i < sfp->count;
- i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep)) {
+ for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
+ i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
XFS_CMP_EXACT) {
#if XFS_BIG_INUMS || defined(DEBUG)
- ino = xfs_dir2_sfe_get_ino(sfp, sfep);
+ ino = xfs_dir3_sfe_get_ino(dp->i_mount,
+ sfp, sfep);
ASSERT(args->inumber != ino);
#endif
- xfs_dir2_sfe_put_ino(sfp, sfep, args->inumber);
+ xfs_dir3_sfe_put_ino(dp->i_mount, sfp, sfep,
+ args->inumber);
+ xfs_dir3_sfe_put_ftype(dp->i_mount, sfp, sfep,
+ args->filetype);
break;
}
}
@@ -1189,10 +1129,12 @@ xfs_dir2_sf_toino4(
int oldsize; /* old inode size */
xfs_dir2_sf_entry_t *sfep; /* new sf entry */
xfs_dir2_sf_hdr_t *sfp; /* new sf directory */
+ struct xfs_mount *mp;
trace_xfs_dir2_sf_toino4(args);
dp = args->dp;
+ mp = dp->i_mount;
/*
* Copy the old directory to the buffer.
@@ -1230,13 +1172,15 @@ xfs_dir2_sf_toino4(
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp),
oldsfep = xfs_dir2_sf_firstentry(oldsfp);
i < sfp->count;
- i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep),
- oldsfep = xfs_dir2_sf_nextentry(oldsfp, oldsfep)) {
+ i++, sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep),
+ oldsfep = xfs_dir3_sf_nextentry(mp, oldsfp, oldsfep)) {
sfep->namelen = oldsfep->namelen;
sfep->offset = oldsfep->offset;
memcpy(sfep->name, oldsfep->name, sfep->namelen);
- xfs_dir2_sfe_put_ino(sfp, sfep,
- xfs_dir2_sfe_get_ino(oldsfp, oldsfep));
+ xfs_dir3_sfe_put_ino(mp, sfp, sfep,
+ xfs_dir3_sfe_get_ino(mp, oldsfp, oldsfep));
+ xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
+ xfs_dir3_sfe_get_ftype(mp, oldsfp, oldsfep));
}
/*
* Clean up the inode.
@@ -1264,10 +1208,12 @@ xfs_dir2_sf_toino8(
int oldsize; /* old inode size */
xfs_dir2_sf_entry_t *sfep; /* new sf entry */
xfs_dir2_sf_hdr_t *sfp; /* new sf directory */
+ struct xfs_mount *mp;
trace_xfs_dir2_sf_toino8(args);
dp = args->dp;
+ mp = dp->i_mount;
/*
* Copy the old directory to the buffer.
@@ -1305,13 +1251,15 @@ xfs_dir2_sf_toino8(
for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp),
oldsfep = xfs_dir2_sf_firstentry(oldsfp);
i < sfp->count;
- i++, sfep = xfs_dir2_sf_nextentry(sfp, sfep),
- oldsfep = xfs_dir2_sf_nextentry(oldsfp, oldsfep)) {
+ i++, sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep),
+ oldsfep = xfs_dir3_sf_nextentry(mp, oldsfp, oldsfep)) {
sfep->namelen = oldsfep->namelen;
sfep->offset = oldsfep->offset;
memcpy(sfep->name, oldsfep->name, sfep->namelen);
- xfs_dir2_sfe_put_ino(sfp, sfep,
- xfs_dir2_sfe_get_ino(oldsfp, oldsfep));
+ xfs_dir3_sfe_put_ino(mp, sfp, sfep,
+ xfs_dir3_sfe_get_ino(mp, oldsfp, oldsfep));
+ xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
+ xfs_dir3_sfe_get_ftype(mp, oldsfp, oldsfep));
}
/*
* Clean up the inode.