Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/fs_struct.h | 3 ++-
 kernel/fork.c             | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 0070764b790a..e8c9fac5b7b7 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -15,7 +15,8 @@ struct fs_struct {
 	struct path root, pwd;
 } __randomize_layout;
 
-extern struct kmem_cache *fs_cachep;
+extern struct kmem_cache_opaque fs_struct_cache;
+#define fs_cachep to_kmem_cache(&fs_struct_cache)
 
 extern void exit_fs(struct task_struct *);
 extern void set_fs_root(struct fs_struct *, const struct path *);
diff --git a/kernel/fork.c b/kernel/fork.c
index 8f0dfefd82f0..7262abd0d2a4 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -476,7 +476,7 @@ struct kmem_cache_opaque sighand_cache;
 struct kmem_cache_opaque files_cache;
 
 /* SLAB cache for fs_struct structures (tsk->fs) */
-struct kmem_cache *fs_cachep;
+struct kmem_cache_opaque fs_struct_cache;
 
 /* SLAB cache for mm_struct structures (tsk->mm) */
 static struct kmem_cache_opaque mm_cache;
@@ -3035,7 +3035,7 @@ void __init proc_caches_init(void)
 			sizeof(struct files_struct), 0,
 			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
 			NULL);
-	fs_cachep = kmem_cache_create("fs_cache",
+	kmem_cache_setup(fs_cachep, "fs_cache",
 			sizeof(struct fs_struct), 0,
 			SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
 			NULL);
-- 
2.47.3