xfs: check directory data block header padding in scrub

Browse source

Add the missing scrub check for the pad field in directory data block
headers. Old kernels may have written non-zero padding without issue,
and the write path now self-heals stale padding on modification. Flag
non-zero padding as an optimization opportunity (preen) rather than
corruption.

Add xchk_fblock_set_preen helper for reporting file fork block issues
that could be optimized. The trace event xchk_fblock_preen already
exists.

Signed-off-by: Yuto Ohnuki <ytohnuki@amazon.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

...

This commit is contained in:

Yuto Ohnuki 2026-04-11 15:24:15 +01:00 • committed by Carlos Maiolino

parent 8fbb1877df

commit 939919ccdd

3 changed files with 19 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

11

fs/xfs/scrub/common.c

View file

2

fs/xfs/scrub/common.h

View file

7

fs/xfs/scrub/dir.c

View file