From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Fri, 3 Nov 2017 08:00:12 -0400
Subject: [PATCH] nfsd: CLOSE SHOULD return the invalid special stateid for
NFSv4.x (x>0)
Git-commit: fb500a7cfee7f2f447d2bbf30cb59629feab6ac1
Patch-mainline: v4.15
References: git-fixes
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: NeilBrown <neilb@suse.com>
---
fs/nfsd/nfs4state.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -63,6 +63,9 @@ static const stateid_t zero_stateid = {
static const stateid_t currentstateid = {
.si_generation = 1,
};
+static const stateid_t close_stateid = {
+ .si_generation = 0xffffffffU,
+};
static u64 current_sessionid = 1;
@@ -5434,6 +5437,11 @@ nfsd4_close(struct svc_rqst *rqstp, stru
nfsd4_close_open_stateid(stp);
mutex_unlock(&stp->st_mutex);
+ /* See RFC5661 sectionm 18.2.4 */
+ if (stp->st_stid.sc_client->cl_minorversion)
+ memcpy(&close->cl_stateid, &close_stateid,
+ sizeof(close->cl_stateid));
+
/* put reference from nfs4_preprocess_seqid_op */
nfs4_put_stid(&stp->st_stid);
out: