kernfs: add CONFIG_KERNFS

As sysfs was kernfs's only user, kernfs has been piggybacking on
CONFIG_SYSFS; however, kernfs is scheduled to grow a new user very
soon.  Introduce a separate config option CONFIG_KERNFS which is to be
selected by kernfs users.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/Makefile b/fs/Makefile
index 47ac07bb4acc..f9cb9876e466 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -52,7 +52,8 @@ obj-$(CONFIG_FHANDLE)		+= fhandle.o
 obj-y                           += quota/
 
 obj-$(CONFIG_PROC_FS)           += proc/
-obj-$(CONFIG_SYSFS)             += sysfs/ kernfs/
+obj-$(CONFIG_KERNFS)            += kernfs/
+obj-$(CONFIG_SYSFS)             += sysfs/
 obj-$(CONFIG_CONFIGFS_FS)       += configfs/
 obj-y                           += devpts/