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xfs: fixes to the AGFL repair code [v26.1]

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This series contains a couple of bug fixes to the AGFL repair code that
 came up during QA.
 
 This has been running on the djcloud for years with no problems.  Enjoy!
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'repair-agfl-fixes-6.6_2023-08-10' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.6-mergeA

xfs: fixes to the AGFL repair code

This series contains a couple of bug fixes to the AGFL repair code that
came up during QA.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>

* tag 'repair-agfl-fixes-6.6_2023-08-10' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
  xfs: fix agf_fllast when repairing an empty AGFL
  xfs: clear pagf_agflreset when repairing the AGFL
This commit is contained in:
Chandan Babu R 2023-08-18 13:36:52 +05:30
commit 939c9de87f
1 changed files with 8 additions and 2 deletions
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10
fs/xfs/scrub/agheader_repair.c
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@ -620,11 +620,17 @@ xrep_agfl_update_agf(
xfs_force_summary_recalc(sc->mp);
/* Update the AGF counters. */
if (xfs_perag_initialised_agf(sc->sa.pag))
if (xfs_perag_initialised_agf(sc->sa.pag)) {
sc->sa.pag->pagf_flcount = flcount;
clear_bit(XFS_AGSTATE_AGFL_NEEDS_RESET,
&sc->sa.pag->pag_opstate);
}
agf->agf_flfirst = cpu_to_be32(0);
agf->agf_flcount = cpu_to_be32(flcount);
agf->agf_fllast = cpu_to_be32(flcount - 1);
if (flcount)
agf->agf_fllast = cpu_to_be32(flcount - 1);
else
agf->agf_fllast = cpu_to_be32(xfs_agfl_size(sc->mp) - 1);
xfs_alloc_log_agf(sc->tp, agf_bp,
XFS_AGF_FLFIRST | XFS_AGF_FLLAST | XFS_AGF_FLCOUNT);