| Date | Tue, 30 Mar 2010 15:41:33 -0700 | From | Greg KH <> | Subject | [059/156] NFSv4: Dont ignore the NFS_INO_REVAL_FORCED flag in nfs_revalidate_inode() |
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2.6.33-stable review patch. If anyone has any objections, please let us know.
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From: Trond Myklebust <Trond.Myklebust@netapp.com>
commit b4d2314bb88b07e5a04e6c75b442a1dfcd60e340 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- fs/nfs/delegation.h | 6 ++++++ fs/nfs/dir.c | 2 +- fs/nfs/inode.c | 2 +- 3 files changed, 8 insertions(+), 2 deletions(-)
--- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -71,4 +71,10 @@ static inline int nfs_inode_return_deleg } #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 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1789,7 +1789,7 @@ static int nfs_access_get_cached(struct 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; --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -759,7 +759,7 @@ int nfs_attribute_timeout(struct 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); }
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