NFS: fix nfs_verify_change_attribute

We always want to check that the verifier and directory
cache_change_attribute match. This also allows us to remove the 'wraparound
hack' for the cache_change_attribute. If we're only checking for equality,
then we don't care about wraparound issues.

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

1 files changed, 0 insertions, 4 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 0d98074d0766..ed035a81eea2 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -972,10 +972,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
         nfsi->read_cache_jiffies = fattr->time_start;
         nfsi->last_updated = now;
 
-        /* Fix a wraparound issue with nfsi->cache_change_attribute */
-        if (time_before(now, nfsi->cache_change_attribute))
-                nfsi->cache_change_attribute = now - 600*HZ;
-
         /* Are we racing with known updates of the metadata on the server? */
         data_stable = nfs_verify_change_attribute(inode, fattr->time_start);
         nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ATIME