提交 9310b224 编写于 作者: T Trond Myklebust

NFS: Fix incorrect size revalidation when holding a delegation

We should only care about checking the attributes if the page cache
is marked as dubious (using NFS_INO_REVAL_PAGECACHE) and the
NFS_INO_REVAL_FORCED flag is set.
Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
上级 10727772
......@@ -102,8 +102,11 @@ static int nfs_revalidate_file_size(struct inode *inode, struct file *filp)
{
struct nfs_server *server = NFS_SERVER(inode);
struct nfs_inode *nfsi = NFS_I(inode);
const unsigned long force_reval = NFS_INO_REVAL_PAGECACHE|NFS_INO_REVAL_FORCED;
unsigned long cache_validity = nfsi->cache_validity;
if (nfs_have_delegated_attributes(inode))
if (NFS_PROTO(inode)->have_delegation(inode, FMODE_READ) &&
(cache_validity & force_reval) != force_reval)
goto out_noreval;
if (filp->f_flags & O_DIRECT)
......
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