xfs: devirtualize ->data_entsize

Replace the ->data_entsize dir ops method with a directly called
xfs_dir2_data_entsize helper that takes care of the differences between
the directory format with and without the file type field.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2019-11-08 15:05:37 -08:00 коммит произвёл Darrick J. Wong
Родитель 5c072127d3
Коммит fdbb8c5b80
10 изменённых файлов: 45 добавлений и 46 удалений

Просмотреть файл

@ -41,18 +41,15 @@
sizeof(xfs_dir2_data_off_t) + sizeof(uint8_t)), \
XFS_DIR2_DATA_ALIGN)
static int
int
xfs_dir2_data_entsize(
struct xfs_mount *mp,
int n)
{
return XFS_DIR2_DATA_ENTSIZE(n);
}
static int
xfs_dir3_data_entsize(
int n)
{
if (xfs_sb_version_hasftype(&mp->m_sb))
return XFS_DIR3_DATA_ENTSIZE(n);
else
return XFS_DIR2_DATA_ENTSIZE(n);
}
static uint8_t
@ -100,7 +97,7 @@ xfs_dir2_data_entry_tag_p(
struct xfs_dir2_data_entry *dep)
{
return (__be16 *)((char *)dep +
xfs_dir2_data_entsize(dep->namelen) - sizeof(__be16));
XFS_DIR2_DATA_ENTSIZE(dep->namelen) - sizeof(__be16));
}
static __be16 *
@ -108,7 +105,7 @@ xfs_dir3_data_entry_tag_p(
struct xfs_dir2_data_entry *dep)
{
return (__be16 *)((char *)dep +
xfs_dir3_data_entsize(dep->namelen) - sizeof(__be16));
XFS_DIR3_DATA_ENTSIZE(dep->namelen) - sizeof(__be16));
}
static struct xfs_dir2_data_free *
@ -124,7 +121,6 @@ xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
}
static const struct xfs_dir_ops xfs_dir2_ops = {
.data_entsize = xfs_dir2_data_entsize,
.data_get_ftype = xfs_dir2_data_get_ftype,
.data_put_ftype = xfs_dir2_data_put_ftype,
.data_entry_tag_p = xfs_dir2_data_entry_tag_p,
@ -137,7 +133,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = {
};
static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
.data_entsize = xfs_dir3_data_entsize,
.data_get_ftype = xfs_dir3_data_get_ftype,
.data_put_ftype = xfs_dir3_data_put_ftype,
.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
@ -150,7 +145,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
};
static const struct xfs_dir_ops xfs_dir3_ops = {
.data_entsize = xfs_dir3_data_entsize,
.data_get_ftype = xfs_dir3_data_get_ftype,
.data_put_ftype = xfs_dir3_data_put_ftype,
.data_entry_tag_p = xfs_dir3_data_entry_tag_p,

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@ -32,7 +32,6 @@ extern unsigned char xfs_mode_to_ftype(int mode);
* directory operations vector for encode/decode routines
*/
struct xfs_dir_ops {
int (*data_entsize)(int len);
uint8_t (*data_get_ftype)(struct xfs_dir2_data_entry *dep);
void (*data_put_ftype)(struct xfs_dir2_data_entry *dep,
uint8_t ftype);
@ -85,7 +84,7 @@ 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);
extern void xfs_dir2_data_freescan_int(struct xfs_da_geometry *geo,
extern void xfs_dir2_data_freescan_int(struct xfs_mount *mp,
const struct xfs_dir_ops *ops,
struct xfs_dir2_data_hdr *hdr, int *loghead);
extern void xfs_dir2_data_freescan(struct xfs_inode *dp,

Просмотреть файл

@ -355,7 +355,7 @@ xfs_dir2_block_addname(
if (error)
return error;
len = dp->d_ops->data_entsize(args->namelen);
len = xfs_dir2_data_entsize(dp->i_mount, args->namelen);
/*
* Set up pointers to parts of the block.
@ -791,7 +791,8 @@ xfs_dir2_block_removename(
needlog = needscan = 0;
xfs_dir2_data_make_free(args, bp,
(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
xfs_dir2_data_entsize(dp->i_mount, dep->namelen), &needlog,
&needscan);
/*
* Fix up the block tail.
*/
@ -1149,7 +1150,7 @@ xfs_dir2_sf_to_block(
xfs_dir2_data_log_entry(args, bp, dep);
blp[0].hashval = cpu_to_be32(xfs_dir_hash_dot);
blp[0].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(offset));
offset += dp->d_ops->data_entsize(dep->namelen);
offset += xfs_dir2_data_entsize(mp, dep->namelen);
/*
* Create entry for ..
@ -1164,7 +1165,7 @@ xfs_dir2_sf_to_block(
xfs_dir2_data_log_entry(args, bp, dep);
blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);
blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(offset));
offset += dp->d_ops->data_entsize(dep->namelen);
offset += xfs_dir2_data_entsize(mp, dep->namelen);
/*
* Loop over existing entries, stuff them in.

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@ -13,6 +13,7 @@
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_dir2.h"
#include "xfs_dir2_priv.h"
#include "xfs_error.h"
#include "xfs_trans.h"
#include "xfs_buf_item.h"
@ -179,7 +180,7 @@ __xfs_dir3_data_check(
return __this_address;
if (xfs_dir_ino_validate(mp, be64_to_cpu(dep->inumber)))
return __this_address;
if (offset + ops->data_entsize(dep->namelen) > end)
if (offset + xfs_dir2_data_entsize(mp, dep->namelen) > end)
return __this_address;
if (be16_to_cpu(*ops->data_entry_tag_p(dep)) != offset)
return __this_address;
@ -203,7 +204,7 @@ __xfs_dir3_data_check(
if (i >= be32_to_cpu(btp->count))
return __this_address;
}
offset += ops->data_entsize(dep->namelen);
offset += xfs_dir2_data_entsize(mp, dep->namelen);
}
/*
* Need to have seen all the entries and all the bestfree slots.
@ -567,7 +568,7 @@ xfs_dir2_data_freeremove(
*/
void
xfs_dir2_data_freescan_int(
struct xfs_da_geometry *geo,
struct xfs_mount *mp,
const struct xfs_dir_ops *ops,
struct xfs_dir2_data_hdr *hdr,
int *loghead)
@ -588,7 +589,7 @@ xfs_dir2_data_freescan_int(
memset(bf, 0, sizeof(*bf) * XFS_DIR2_DATA_FD_COUNT);
*loghead = 1;
end = xfs_dir3_data_end_offset(geo, addr);
end = xfs_dir3_data_end_offset(mp->m_dir_geo, addr);
while (offset < end) {
struct xfs_dir2_data_unused *dup = addr + offset;
struct xfs_dir2_data_entry *dep = addr + offset;
@ -608,7 +609,7 @@ xfs_dir2_data_freescan_int(
* For active entries, check their tags and skip them.
*/
ASSERT(offset == be16_to_cpu(*ops->data_entry_tag_p(dep)));
offset += ops->data_entsize(dep->namelen);
offset += xfs_dir2_data_entsize(mp, dep->namelen);
}
}
@ -618,8 +619,7 @@ xfs_dir2_data_freescan(
struct xfs_dir2_data_hdr *hdr,
int *loghead)
{
return xfs_dir2_data_freescan_int(dp->i_mount->m_dir_geo, dp->d_ops,
hdr, loghead);
return xfs_dir2_data_freescan_int(dp->i_mount, dp->d_ops, hdr, loghead);
}
/*

Просмотреть файл

@ -660,7 +660,7 @@ xfs_dir2_leaf_addname(
xfs_dir2_leaf_hdr_from_disk(dp->i_mount, &leafhdr, leaf);
ents = leafhdr.ents;
bestsp = xfs_dir2_leaf_bests_p(ltp);
length = dp->d_ops->data_entsize(args->namelen);
length = xfs_dir2_data_entsize(dp->i_mount, args->namelen);
/*
* See if there are any entries with the same hash value
@ -1397,7 +1397,8 @@ xfs_dir2_leaf_removename(
*/
xfs_dir2_data_make_free(args, dbp,
(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
xfs_dir2_data_entsize(dp->i_mount, dep->namelen), &needlog,
&needscan);
/*
* We just mark the leaf entry stale by putting a null in it.
*/

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@ -666,7 +666,7 @@ xfs_dir2_leafn_lookup_for_addname(
ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
}
length = dp->d_ops->data_entsize(args->namelen);
length = xfs_dir2_data_entsize(mp, args->namelen);
/*
* Loop over leaf entries with the right hash value.
*/
@ -1320,7 +1320,8 @@ xfs_dir2_leafn_remove(
longest = be16_to_cpu(bf[0].length);
needlog = needscan = 0;
xfs_dir2_data_make_free(args, dbp, off,
dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
xfs_dir2_data_entsize(dp->i_mount, dep->namelen), &needlog,
&needscan);
/*
* Rescan the data block freespaces for bestfree.
* Log the data block header if needed.
@ -1913,7 +1914,7 @@ xfs_dir2_node_addname_int(
int needscan = 0; /* need to rescan data frees */
__be16 *tagp; /* data entry tag pointer */
length = dp->d_ops->data_entsize(args->namelen);
length = xfs_dir2_data_entsize(dp->i_mount, args->namelen);
error = xfs_dir2_node_find_freeblk(args, fblk, &dbno, &fbp, &freehdr,
&findex, length);
if (error)

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@ -57,6 +57,8 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
struct xfs_buf *lbp, struct xfs_buf *dbp);
/* xfs_dir2_data.c */
int xfs_dir2_data_entsize(struct xfs_mount *mp, int n);
#ifdef DEBUG
extern void xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
#else

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@ -323,7 +323,7 @@ xfs_dir2_block_to_sf(
sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep);
}
offset += dp->d_ops->data_entsize(dep->namelen);
offset += xfs_dir2_data_entsize(mp, dep->namelen);
}
ASSERT((char *)sfep - (char *)sfp == size);
@ -540,10 +540,10 @@ xfs_dir2_sf_addname_hard(
*/
for (offset = dp->d_ops->data_first_offset,
oldsfep = xfs_dir2_sf_firstentry(oldsfp),
add_datasize = dp->d_ops->data_entsize(args->namelen),
add_datasize = xfs_dir2_data_entsize(mp, args->namelen),
eof = (char *)oldsfep == &buf[old_isize];
!eof;
offset = new_offset + dp->d_ops->data_entsize(oldsfep->namelen),
offset = new_offset + xfs_dir2_data_entsize(mp, oldsfep->namelen),
oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep),
eof = (char *)oldsfep == &buf[old_isize]) {
new_offset = xfs_dir2_sf_get_offset(oldsfep);
@ -615,7 +615,7 @@ xfs_dir2_sf_addname_pick(
int used; /* data bytes used */
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
size = dp->d_ops->data_entsize(args->namelen);
size = xfs_dir2_data_entsize(mp, args->namelen);
offset = dp->d_ops->data_first_offset;
sfep = xfs_dir2_sf_firstentry(sfp);
holefit = 0;
@ -628,7 +628,7 @@ xfs_dir2_sf_addname_pick(
if (!holefit)
holefit = offset + size <= xfs_dir2_sf_get_offset(sfep);
offset = xfs_dir2_sf_get_offset(sfep) +
dp->d_ops->data_entsize(sfep->namelen);
xfs_dir2_data_entsize(mp, sfep->namelen);
sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep);
}
/*
@ -693,7 +693,7 @@ xfs_dir2_sf_check(
i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
offset =
xfs_dir2_sf_get_offset(sfep) +
dp->d_ops->data_entsize(sfep->namelen);
xfs_dir2_data_entsize(mp, sfep->namelen);
ASSERT(xfs_dir2_sf_get_ftype(mp, sfep) < XFS_DIR3_FT_MAX);
}
ASSERT(i8count == sfp->i8count);
@ -793,7 +793,7 @@ xfs_dir2_sf_verify(
return __this_address;
offset = xfs_dir2_sf_get_offset(sfep) +
dops->data_entsize(sfep->namelen);
xfs_dir2_data_entsize(mp, sfep->namelen);
sfep = next_sfep;
}

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@ -265,7 +265,7 @@ xchk_dir_rec(
}
if (dep == dent)
break;
iter_off += mp->m_dir_inode_ops->data_entsize(dep->namelen);
iter_off += xfs_dir2_data_entsize(mp, dep->namelen);
}
/* Retrieve the entry, sanity check it, and compare hashes. */
@ -403,7 +403,7 @@ xchk_directory_data_bestfree(
if (dup->freetag != cpu_to_be16(XFS_DIR2_DATA_FREE_TAG)) {
struct xfs_dir2_data_entry *dep = bp->b_addr + offset;
newlen = d_ops->data_entsize(dep->namelen);
newlen = xfs_dir2_data_entsize(mp, dep->namelen);
if (newlen <= 0) {
xchk_fblock_set_corrupt(sc, XFS_DATA_FORK,
lblk);

Просмотреть файл

@ -78,7 +78,7 @@ xfs_dir2_sf_getdents(
dp->d_ops->data_entry_offset);
dotdot_offset = xfs_dir2_db_off_to_dataptr(geo, geo->datablk,
dp->d_ops->data_entry_offset +
dp->d_ops->data_entsize(sizeof(".") - 1));
xfs_dir2_data_entsize(mp, sizeof(".") - 1));
/*
* Put . entry unless we're starting past it.
@ -192,7 +192,7 @@ xfs_dir2_block_getdents(
/*
* Bump pointer for the next iteration.
*/
offset += dp->d_ops->data_entsize(dep->namelen);
offset += xfs_dir2_data_entsize(dp->i_mount, dep->namelen);
/*
* The entry is before the desired starting point, skip it.
@ -347,6 +347,7 @@ xfs_dir2_leaf_getdents(
size_t bufsize)
{
struct xfs_inode *dp = args->dp;
struct xfs_mount *mp = dp->i_mount;
struct xfs_buf *bp = NULL; /* data block buffer */
xfs_dir2_data_entry_t *dep; /* data entry */
xfs_dir2_data_unused_t *dup; /* unused entry */
@ -422,8 +423,8 @@ xfs_dir2_leaf_getdents(
continue;
}
dep = bp->b_addr + offset;
length =
dp->d_ops->data_entsize(dep->namelen);
length = xfs_dir2_data_entsize(mp,
dep->namelen);
offset += length;
}
/*
@ -454,7 +455,7 @@ xfs_dir2_leaf_getdents(
}
dep = bp->b_addr + offset;
length = dp->d_ops->data_entsize(dep->namelen);
length = xfs_dir2_data_entsize(mp, dep->namelen);
filetype = dp->d_ops->data_get_ftype(dep);
ctx->pos = xfs_dir2_byte_to_dataptr(curoff) & 0x7fffffff;