This eliminates a redundant get_current_cred() call, because
ceph_mds_check_access() has already obtained this pointer.
As a side effect, this also fixes a reference leak in
ceph_mds_auth_match(): by omitting the get_current_cred() call, no
additional cred reference is taken.
Fixes: 596afb0b8933 ("ceph: add ceph_mds_check_access() helper")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Max Kellermann <max.kellermann@xxxxxxxxx>
---
fs/ceph/mds_client.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 6baec1387f7d..e8a5994de8b6 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -5615,9 +5615,9 @@ void send_flush_mdlog(struct ceph_mds_session *s)
static int ceph_mds_auth_match(struct ceph_mds_client *mdsc,
struct ceph_mds_cap_auth *auth,
+ const struct cred *cred,
char *tpath)
{
- const struct cred *cred = get_current_cred();
u32 caller_uid = from_kuid(&init_user_ns, cred->fsuid);
u32 caller_gid = from_kgid(&init_user_ns, cred->fsgid);
struct ceph_client *cl = mdsc->fsc->client;
@@ -5740,7 +5740,7 @@ int ceph_mds_check_access(struct ceph_mds_client *mdsc, char *tpath, int mask)
for (i = 0; i < mdsc->s_cap_auths_num; i++) {
struct ceph_mds_cap_auth *s = &mdsc->s_cap_auths[i];
- err = ceph_mds_auth_match(mdsc, s, tpath);
+ err = ceph_mds_auth_match(mdsc, s, cred, tpath);
if (err < 0) {
return err;
} else if (err > 0) {
--
2.45.2
