NFS: Fix over-conservative attribute invalidation in nfs_update_inode()

We should always be declaring the attribute cache as valid after having
updated it.

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

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 45633f9..721e511 100644 (file)
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -978,8 +978,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 
        /* Are we racing with known updates of the metadata on the server? */
        data_stable = nfs_verify_change_attribute(inode, fattr->time_start);
-       if (data_stable)
-               nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATIME);
+       nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ATIME
+                       | NFS_INO_REVAL_PAGECACHE);
 
        /* Do atomic weak cache consistency updates */
        nfs_wcc_update_inode(inode, fattr);
@@ -1060,12 +1060,11 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
                        nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
                nfsi->attrtimeo_timestamp = now;
        }
+       invalid &= ~NFS_INO_INVALID_ATTR;
        /* Don't invalidate the data if we were to blame */
        if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
                                || S_ISLNK(inode->i_mode)))
                invalid &= ~NFS_INO_INVALID_DATA;
-       if (data_stable)
-               invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
        if (!nfs_have_delegation(inode, FMODE_READ) ||
                        (nfsi->cache_validity & NFS_INO_REVAL_FORCED))
                nfsi->cache_validity |= invalid;