f2fs: missing kmem_cache_destroy for discard_entry

insmod f2fs.ko is failed after insmod and rmmod firstly.

$ sudo insmod fs/f2fs/f2fs.ko
insmod: error inserting 'fs/f2fs/f2fs.ko': -1 Cannot allocate memory

-- dmesg --
kmem_cache_sanity_check (free_nid): Cache name already exists.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 1674f2f..5c574fa 100644 (file)
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1140,6 +1140,7 @@ static void __exit exit_f2fs_fs(void)
        unregister_filesystem(&f2fs_fs_type);
        destroy_checkpoint_caches();
        destroy_gc_caches();
+       destroy_segment_manager_caches();
        destroy_node_manager_caches();
        destroy_inodecache();
        kset_unregister(f2fs_kset);