6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Luis Henriques (SUSE) <luis.henriques@xxxxxxxxx>
[ Upstream commit d97079e97eab20e08afc507f2bed4501e2824717 ]
The cap_auths that are allocated during an MDS session opening are never
released, causing a memory leak detected by kmemleak. Fix this by freeing
the memory allocated when shutting down the MDS client.
Fixes: 1d17de9534cb ("ceph: save cap_auths in MDS client when session is opened")
Signed-off-by: Luis Henriques (SUSE) <luis.henriques@xxxxxxxxx>
Reviewed-by: Xiubo Li <xiubli@xxxxxxxxxx>
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/ceph/mds_client.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 276e34ab3e2cc..2e4b3ee7446c8 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -6015,6 +6015,18 @@ static void ceph_mdsc_stop(struct ceph_mds_client *mdsc)
ceph_mdsmap_destroy(mdsc->mdsmap);
kfree(mdsc->sessions);
ceph_caps_finalize(mdsc);
+
+ if (mdsc->s_cap_auths) {
+ int i;
+
+ for (i = 0; i < mdsc->s_cap_auths_num; i++) {
+ kfree(mdsc->s_cap_auths[i].match.gids);
+ kfree(mdsc->s_cap_auths[i].match.path);
+ kfree(mdsc->s_cap_auths[i].match.fs_name);
+ }
+ kfree(mdsc->s_cap_auths);
+ }
+
ceph_pool_perm_destroy(mdsc);
}
--
2.43.0
