[PATCH wq#for-next] fscache: fix build on !CONFIG_SYSCTL

[Tejun Heo <tj@kernel.org>]

Commit 8b8edefa (fscache: convert object to use workqueue instead of
slow-work) made fscache_exit() call unregister_sysctl_table()
unconditionally breaking build when sysctl is disabled.  Fix it by
putting it inside CONFIG_SYSCTL.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: David Howells <dhowells@redhat.com>
---
This should fix it.  Thanks.

 fs/fscache/main.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/fscache/main.c b/fs/fscache/main.c
index 500936d..f9d8567 100644
--- a/fs/fscache/main.c
+++ b/fs/fscache/main.c
@@ -186,7 +186,9 @@ static void __exit fscache_exit(void)

 	kobject_put(fscache_root);
 	kmem_cache_destroy(fscache_cookie_jar);
+#ifdef CONFIG_SYSCTL
 	unregister_sysctl_table(fscache_sysctl_header);
+#endif
 	fscache_proc_cleanup();
 	destroy_workqueue(fscache_op_wq);
 	destroy_workqueue(fscache_object_wq);
-- 
1.7.1