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ceph: fix a memory leak on cap_auths in MDS client

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[ Upstream commit d97079e97e ]

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: 1d17de9534 ("ceph: save cap_auths in MDS client when session is opened")
Signed-off-by: Luis Henriques (SUSE) <luis.henriques@linux.dev>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Luis Henriques (SUSE)
2024-08-19 10:52:17 +01:00
committed by Greg Kroah-Hartman
parent dfeb67b219
commit 1bb86b02bc
1 changed files with 12 additions and 0 deletions
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fs/ceph/mds_client.c
+12
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@@ -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);
}