ceph: use kill_anon_super helper

ceph open-codes this around some other activity and the rationale
for it isn't clear. There is no need to delay free_anon_bdev until
the end of kill_sb.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 7ec0e6d..b3fc9bb 100644 (file)
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -1205,14 +1205,13 @@ nomem:
 static void ceph_kill_sb(struct super_block *s)
 {
        struct ceph_fs_client *fsc = ceph_sb_to_client(s);
-       dev_t dev = s->s_dev;
 
        dout("kill_sb %p\n", s);
 
        ceph_mdsc_pre_umount(fsc->mdsc);
        flush_fs_workqueues(fsc);
 
-       generic_shutdown_super(s);
+       kill_anon_super(s);
 
        fsc->client->extra_mon_dispatch = NULL;
        ceph_fs_debugfs_cleanup(fsc);
@@ -1220,7 +1219,6 @@ static void ceph_kill_sb(struct super_block *s)
        ceph_fscache_unregister_fs(fsc);
 
        destroy_fs_client(fsc);
-       free_anon_bdev(dev);
 }
 
 static struct file_system_type ceph_fs_type = {