xfs: convert remaining direct references to m_perag

Convert the remaining direct lookups of the per ag structures to use
get/put accesses. Ensure that the loops across AGs and prior users
of the interface balance gets and puts correctly.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index bd3d81636d51..0317b000ab44 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2695,7 +2695,7 @@ xfs_iflush_cluster(
         ilist_size = inodes_per_cluster * sizeof(xfs_inode_t *);
         ilist = kmem_alloc(ilist_size, KM_MAYFAIL|KM_NOFS);
         if (!ilist)
-                return 0;
+                goto out_put;
 
         mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
         first_index = XFS_INO_TO_AGINO(mp, ip->i_ino) & mask;
@@ -2764,6 +2764,8 @@ xfs_iflush_cluster(
 out_free:
         read_unlock(&pag->pag_ici_lock);
         kmem_free(ilist);
+out_put:
+        xfs_perag_put(pag);
         return 0;
 
 
@@ -2807,6 +2809,7 @@ cluster_corrupt_out:
          */
         xfs_iflush_abort(iq);
         kmem_free(ilist);
+        xfs_perag_put(pag);
         return XFS_ERROR(EFSCORRUPTED);
 }