From f50862423f547f8506d69b6e4fc53be53288244c Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Tue, 20 Mar 2018 16:43:13 -0400
Subject: [PATCH] NFSv4: Fix nfs4_return_incompatible_delegation
The 'fmode' argument can take an FMODE_EXEC value, which we want to
filter out before comparing to the delegation type.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
fs/nfs/nfs4proc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ec68edce6cc36..71f2916f93ff5 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1669,6 +1669,7 @@ static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmo
{
struct nfs_delegation *delegation;
+ fmode &= FMODE_READ|FMODE_WRITE;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
if (delegation == NULL || (delegation->type & fmode) == fmode) {
--
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