NFSv4: Don't ignore the NFS_INO_REVAL_FORCED flag in nfs_revalidate_inode()

If the NFS_INO_REVAL_FORCED flag is set, that means that we don't yet have
an up to date attribute cache. Even if we hold a delegation, we must
put a GETATTR on the wire.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org

diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 944b627ec6e1a956340ee8c0464b5510b185b336..69e7b8140122d7ed4feec5e5fad1dddb307ae150 100644 (file)
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -71,4 +71,10 @@ static inline int nfs_inode_return_delegation(struct inode *inode)
 }
 #endif
 
+static inline int nfs_have_delegated_attributes(struct inode *inode)
+{
+       return nfs_have_delegation(inode, FMODE_READ) &&
+               !(NFS_I(inode)->cache_validity & NFS_INO_REVAL_FORCED);
+}
+
 #endif

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index a1f6b4438fb12cbd5b49a648b986f58354079bf0..c6f2750648f45d76f8ca57c30b82c0759f5a91d9 100644 (file)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1789,7 +1789,7 @@ static int nfs_access_get_cached(struct inode *inode, struct rpc_cred *cred, str
        cache = nfs_access_search_rbtree(inode, cred);
        if (cache == NULL)
                goto out;
-       if (!nfs_have_delegation(inode, FMODE_READ) &&
+       if (!nfs_have_delegated_attributes(inode) &&
            !time_in_range_open(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
                goto out_stale;
        res->jiffies = cache->jiffies;

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 657201acda84ba2232851971b098787eb1a0b2f4..e358df75a6ad2e4f64361298fa335bed78c5c6ab 100644 (file)
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -729,7 +729,7 @@ int nfs_attribute_timeout(struct inode *inode)
 {
        struct nfs_inode *nfsi = NFS_I(inode);
 
-       if (nfs_have_delegation(inode, FMODE_READ))
+       if (nfs_have_delegated_attributes(inode))
                return 0;
        return !time_in_range_open(jiffies, nfsi->read_cache_jiffies, nfsi->read_cache_jiffies + nfsi->attrtimeo);
 }