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Date: Fri, 2 Feb 2018 17:57:46 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Trond Myklebust <trond.myklebust@...marydata.com>,
"J. Bruce Fields" <bfields@...hat.com>,
Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.14 085/156] nfsd: CLOSE SHOULD return the invalid special stateid for NFSv4.x (x>0)
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Trond Myklebust <trond.myklebust@...marydata.com>
[ Upstream commit fb500a7cfee7f2f447d2bbf30cb59629feab6ac1 ]
Signed-off-by: Trond Myklebust <trond.myklebust@...marydata.com>
Signed-off-by: J. Bruce Fields <bfields@...hat.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
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;
@@ -5411,6 +5414,11 @@ 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:
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