libceph: introduce reference counted string
The data structure is for storing namesapce string. It allows namespace
string to be shared between cephfs inodes with same layout. This data
structure can also be referenced by OSD request.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 55d2bfe..bddfcf6 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -747,6 +747,8 @@
static void __exit exit_ceph_lib(void)
{
dout("exit_ceph_lib\n");
+ WARN_ON(!ceph_strings_empty());
+
ceph_osdc_cleanup();
ceph_msgr_exit();
ceph_crypto_shutdown();
