NFS: Optimise away nfs_check_inode_attributes() when holding a delegation

We already know that the attribute cache is valid.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index fed27c0d1a4d..81946e77647c 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -955,6 +955,8 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
         unsigned long invalid = 0;
 
 
+        if (nfs_have_delegated_attributes(inode))
+                return 0;
         /* Has the inode gone and changed behind our back? */
         if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
                 return -EIO;