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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-02-26 22:54:58 (GMT)
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-03-02 04:23:06 (GMT)
commit8f8ba1d739b7047e2e1d91735716af2799ff2b1e (patch)
tree6a7269e0795220ed360a142bf3ad1901f1cb6822 /fs/nfs
parenta08a8cd375db9769588257e7782f6b6b68561b88 (diff)
downloadlinux-8f8ba1d739b7047e2e1d91735716af2799ff2b1e.tar.xz
NFSv4: Add attribute update barriers to delegreturn and pNFS layoutcommit
Ensure that other operations that race with delegreturn and layoutcommit cannot revert the attribute updates that were made on the server. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Tested-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/inode.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index ff9a679..cd094d6 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1555,6 +1555,7 @@ int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fa
int status;
spin_lock(&inode->i_lock);
+ nfs_fattr_set_barrier(fattr);
status = nfs_post_op_update_inode_force_wcc_locked(inode, fattr);
spin_unlock(&inode->i_lock);
return status;