xfs: automatic dfops inode relogging

Inodes that are held across deferred operations are explicitly
joined to the dfops structure to ensure appropriate relogging.
While inodes are currently joined explicitly, we can detect the
conditions that require relogging at dfops finish time by inspecting
the transaction item list for inodes with ili_lock_flags == 0.

Replace the xfs_defer_ijoin() infrastructure with such detection and
automatic relogging of held inodes. This eliminates the need for the
per-dfops inode list, replaced by an on-stack variant in
xfs_defer_trans_roll().

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>

1 files changed, 0 insertions, 2 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 441c8593cfd7..7bb46a0eecfc 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1569,7 +1569,6 @@ xfs_itruncate_extents_flags(
                  * Duplicate the transaction that has the permanent
                  * reservation and commit the old transaction.
                  */
-                xfs_defer_ijoin(tp->t_dfops, ip);
                 error = xfs_defer_finish(&tp);
                 if (error)
                         goto out_bmap_cancel;
@@ -1810,7 +1809,6 @@ xfs_inactive_ifree(
          * Just ignore errors at this point.  There is nothing we can do except
          * to try to keep going. Make sure it's not a silent error.
          */
-        xfs_defer_ijoin(tp->t_dfops, ip);
         error = xfs_trans_commit(tp);
         if (error)
                 xfs_notice(mp, "%s: xfs_trans_commit returned error %d",