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xfs: vectorise directory data operations

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Following from the initial patches to vectorise the shortform
directory encode/decode operations, convert half the data block
operations to use the vector. The rest will be done in a second
patch.

This further reduces the size of the built binary:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner
2013-10-29 22:11:48 +11:00
committed by Ben Myers
parent 4740175e75
commit 9d23fc8575
9 changed files with 329 additions and 205 deletions
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20
fs/xfs/xfs_dir2_sf.c
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@@ -251,11 +251,11 @@ xfs_dir2_block_to_sf(
dp->d_ops->sf_put_ino(sfp, sfep,
be64_to_cpu(dep->inumber));
dp->d_ops->sf_put_ftype(sfep,
xfs_dir3_dirent_get_ftype(mp, dep));
dp->d_ops->data_get_ftype(dep));
sfep = dp->d_ops->sf_nextentry(sfp, sfep);
}
ptr += xfs_dir3_data_entsize(mp, dep->namelen);
ptr += dp->d_ops->data_entsize(dep->namelen);
}
ASSERT((char *)sfep - (char *)sfp == size);
xfs_dir2_sf_check(args);
@@ -473,12 +473,12 @@ 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(mp),
for (offset = dp->d_ops->data_first_offset(),
oldsfep = xfs_dir2_sf_firstentry(oldsfp),
add_datasize = xfs_dir3_data_entsize(mp, args->namelen),
add_datasize = dp->d_ops->data_entsize(args->namelen),
eof = (char *)oldsfep == &buf[old_isize];
!eof;
offset = new_offset + xfs_dir3_data_entsize(mp, oldsfep->namelen),
offset = new_offset + dp->d_ops->data_entsize(oldsfep->namelen),
oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep),
eof = (char *)oldsfep == &buf[old_isize]) {
new_offset = xfs_dir2_sf_get_offset(oldsfep);
@@ -555,8 +555,8 @@ xfs_dir2_sf_addname_pick(
mp = dp->i_mount;
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
size = xfs_dir3_data_entsize(mp, args->namelen);
offset = xfs_dir3_data_first_offset(mp);
size = dp->d_ops->data_entsize(args->namelen);
offset = dp->d_ops->data_first_offset();
sfep = xfs_dir2_sf_firstentry(sfp);
holefit = 0;
/*
@@ -568,7 +568,7 @@ xfs_dir2_sf_addname_pick(
if (!holefit)
holefit = offset + size <= xfs_dir2_sf_get_offset(sfep);
offset = xfs_dir2_sf_get_offset(sfep) +
xfs_dir3_data_entsize(mp, sfep->namelen);
dp->d_ops->data_entsize(sfep->namelen);
sfep = dp->d_ops->sf_nextentry(sfp, sfep);
}
/*
@@ -629,7 +629,7 @@ xfs_dir2_sf_check(
mp = dp->i_mount;
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
offset = xfs_dir3_data_first_offset(mp);
offset = dp->d_ops->data_first_offset();
ino = dp->d_ops->sf_get_parent_ino(sfp);
i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
@@ -641,7 +641,7 @@ xfs_dir2_sf_check(
i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
offset =
xfs_dir2_sf_get_offset(sfep) +
xfs_dir3_data_entsize(mp, sfep->namelen);
dp->d_ops->data_entsize(sfep->namelen);
ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX);
}
ASSERT(i8count == sfp->i8count);