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OpenCloudOS-Kernel
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NFS: Use delegations to optimise ACCESS calls 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2008-12-23 15:21:55 -05:00
parent 15860ab1d7
commit 7a50c60e46
1 changed files with 2 additions and 1 deletions
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3
fs/nfs/dir.c
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@ -1797,7 +1797,8 @@ 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 (!time_in_range(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
if (!nfs_have_delegation(inode, FMODE_READ) &&
!time_in_range(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
goto out_stale;
res->jiffies = cache->jiffies;
res->cred = cache->cred;