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NFSv4: Fix nfs4_return_incompatible_delegation
author
Trond Myklebust
<trond.myklebust@primarydata.com>
Tue, 20 Mar 2018 20:43:13 +0000
(16:43 -0400)
committer
Anna Schumaker
<Anna.Schumaker@Netapp.com>
Tue, 10 Apr 2018 20:06:22 +0000
(16:06 -0400)
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
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diff --git
a/fs/nfs/nfs4proc.c
b/fs/nfs/nfs4proc.c
index
ec68edc
..
71f2916
100644
(file)
--- 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) {