From: Trond Myklebust trond.myklebust@hammerspace.com
[ Upstream commit 8c39a39e28b86a4021d9be314ce01019bafa5fdc ]
It is unsafe to dereference delegation outside the rcu lock, and in any case, the refcount is guaranteed held if cred is non-zero.
Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfs/nfs4proc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 6418cb6c079bd..11a5aa46e64c3 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2749,8 +2749,7 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state) if (status == -NFS4ERR_EXPIRED || status == -NFS4ERR_BAD_STATEID) nfs_finish_clear_delegation_stateid(state, &stateid);
- if (delegation->cred) - put_cred(cred); + put_cred(cred); }
/**