NFS: Don't revalidate dentries on directory size or ctime changes

We only need to look at the mtime changes...

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

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 8c53b7e..7fdaaf5 100644 (file)
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1015,10 +1015,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
                        nfsi->cache_change_attribute = now;
                }
                /* If ctime has changed we should definitely clear access+acl caches */
-               if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
+               if (!timespec_equal(&inode->i_ctime, &fattr->ctime))
                        invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
-                       nfsi->cache_change_attribute = now;
-               }
        } else if (nfsi->change_attr != fattr->change_attr) {
                dprintk("NFS: change_attr change on server for file %s/%ld\n",
                                inode->i_sb->s_id, inode->i_ino);
@@ -1036,7 +1034,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
                        inode->i_size = new_isize;
                        invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
                }
-               nfsi->cache_change_attribute = now;
                dprintk("NFS: isize change on server for file %s/%ld\n",
                                inode->i_sb->s_id, inode->i_ino);
        }