NFS: reduce the number of false cache invalidations.

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

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 0e1ef97..24988f4 100644 (file)
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1328,11 +1328,8 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
 
        cur_size = i_size_read(inode);
        new_isize = nfs_size_to_loff_t(fattr->size);
-       if (cur_size != new_isize) {
-               nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
-               if (nfsi->npages == 0)
-                       nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
-       }
+       if (cur_size != new_isize && nfsi->npages == 0)
+               nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
 
        /* Have any file permissions changed? */
        if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)