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authorTrond Myklebust <trond.myklebust@primarydata.com>2018-03-20 16:53:32 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2018-04-10 16:06:22 -0400
commitd943f2dd8dba1ecde2de053500a6533e39577bfc (patch)
tree7b9e767115531416e379eab1374a3b25fbf943b6 /fs/nfs/inode.c
parent16e143751727471f9a565515344196693bbc8762 (diff)
downloadlinux-d943f2dd8dba1ecde2de053500a6533e39577bfc.tar.bz2
NFSv4: Ignore change attribute invalidations if we hold a delegation
Don't bother even recording an invalid change attribute if we hold a delegation since we already know the state of our attribute cache. We can rely on the fact that we will pick up a copy from the server when we return the delegation. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 23880f45c1e4..a2c5d4ad4535 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -200,7 +200,10 @@ bool nfs_check_cache_invalid(struct inode *inode, unsigned long flags)
static void nfs_set_cache_invalid(struct inode *inode, unsigned long flags)
{
struct nfs_inode *nfsi = NFS_I(inode);
+ bool have_delegation = nfs_have_delegated_attributes(inode);
+ if (have_delegation)
+ flags &= ~(NFS_INO_INVALID_CHANGE|NFS_INO_REVAL_PAGECACHE);
if (inode->i_mapping->nrpages == 0)
flags &= ~NFS_INO_INVALID_DATA;
nfsi->cache_validity |= flags;