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xfs: update incore per-AG inode count

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For whatever reason we never actually update pagi_count (the in-core
perag inode count) when we allocate or free inode chunks.  Online scrub
is going to use it, so we need to fix the accounting.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong 2018-06-11 21:52:01 -07:00
parent 0703a8e1c1
commit 89e9b5c091
1 changed files with 2 additions and 0 deletions
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2
fs/xfs/libxfs/xfs_ialloc.c
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@ -897,6 +897,7 @@ xfs_ialloc_ag_alloc(
be32_add_cpu(&agi->agi_freecount, newlen);
pag = xfs_perag_get(args.mp, agno);
pag->pagi_freecount += newlen;
pag->pagi_count += newlen;
xfs_perag_put(pag);
agi->agi_newino = cpu_to_be32(newino);
@ -1991,6 +1992,7 @@ xfs_difree_inobt(
xfs_ialloc_log_agi(tp, agbp, XFS_AGI_COUNT | XFS_AGI_FREECOUNT);
pag = xfs_perag_get(mp, agno);
pag->pagi_freecount -= ilen - 1;
pag->pagi_count -= ilen;
xfs_perag_put(pag);
xfs_trans_mod_sb(tp, XFS_TRANS_SB_ICOUNT, -ilen);
xfs_trans_mod_sb(tp, XFS_TRANS_SB_IFREE, -(ilen - 1));