AuxXxilium/linux_dsm_epyc7002
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xfs: return locked status of inode buffer on xfsaild push

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If the inode buffer backing a particular inode is locked,
xfs_iflush() returns -EAGAIN and xfs_inode_item_push() skips the
inode. It still returns success to xfsaild, however, which bypasses
the xfsaild backoff heuristic. Update xfs_inode_item_push() to
return locked status if the inode buffer couldn't be locked.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Brian Foster 2020-03-27 08:29:55 -07:00 committed by Darrick J. Wong
parent 8d3d7e2b35
commit d4bc4c5fd1
1 changed files with 2 additions and 1 deletions
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3
fs/xfs/xfs_inode_item.c
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@ -552,7 +552,8 @@ xfs_inode_item_push(
if (!xfs_buf_delwri_queue(bp, buffer_list))
rval = XFS_ITEM_FLUSHING;
xfs_buf_relse(bp);
}
} else if (error == -EAGAIN)
rval = XFS_ITEM_LOCKED;
spin_lock(&lip->li_ailp->ail_lock);
out_unlock: