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xfs: replace xfs_sb_version checks with feature flag checks

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Convert the xfs_sb_version_hasfoo() to checks against
mp->m_features. Checks of the superblock itself during disk
operations (e.g. in the read/write verifiers and the to/from disk
formatters) are not converted - they operate purely on the
superblock state. Everything else should use the mount features.

Large parts of this conversion were done with sed with commands like
this:

for f in `git grep -l xfs_sb_version_has fs/xfs/*.c`; do
	sed -i -e 's/xfs_sb_version_has\(.*\)(&\(.*\)->m_sb)/xfs_has_\1(\2)/' $f
done

With manual cleanups for things like "xfs_has_extflgbit" and other
little inconsistencies in naming.

The result is ia lot less typing to check features and an XFS binary
size reduced by a bit over 3kB:

$ size -t fs/xfs/built-in.a
	text	   data	    bss	    dec	    hex	filenam
before	1130866  311352     484 1442702  16038e (TOTALS)
after	1127727  311352     484 1439563  15f74b (TOTALS)

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Dave Chinner 2021-08-18 18:46:37 -07:00 • committed by Darrick J. Wong
parent a1d86e8dec
commit 38c26bfd90
75 changed files with 267 additions and 267 deletions
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6
fs/xfs/libxfs/xfs_dir2_leaf.c
View file

@ -209,7 +209,7 @@ xfs_dir3_leaf_read_verify(
struct xfs_mount *mp = bp->b_mount;
xfs_failaddr_t fa;
if (xfs_sb_version_hascrc(&mp->m_sb) &&
if (xfs_has_crc(mp) &&
!xfs_buf_verify_cksum(bp, XFS_DIR3_LEAF_CRC_OFF))
xfs_verifier_error(bp, -EFSBADCRC, __this_address);
else {
@ -234,7 +234,7 @@ xfs_dir3_leaf_write_verify(
return;
}
if (!xfs_sb_version_hascrc(&mp->m_sb))
if (!xfs_has_crc(mp))
return;
if (bip)
@ -308,7 +308,7 @@ xfs_dir3_leaf_init(
ASSERT(type == XFS_DIR2_LEAF1_MAGIC || type == XFS_DIR2_LEAFN_MAGIC);
if (xfs_sb_version_hascrc(&mp->m_sb)) {
if (xfs_has_crc(mp)) {
struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
memset(leaf3, 0, sizeof(*leaf3));