From: Pekka Enberg <penberg@cs.helsinki.fi>

There's just no sane way to revoke shared memory mappings for NOMMU so lets
disable the thing completely when CONFIG_MMU=n.

Cc: Bryan Wu <bryan.wu@analog.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/Makefile |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN fs/Makefile~revoke-core-code-revoke-no-revoke-for-nommu fs/Makefile
--- a/fs/Makefile~revoke-core-code-revoke-no-revoke-for-nommu
+++ a/fs/Makefile
@@ -11,7 +11,7 @@ obj-y :=	open.o read_write.o file_table.
 		attr.o bad_inode.o file.o filesystems.o namespace.o aio.o \
 		seq_file.o xattr.o libfs.o fs-writeback.o \
 		pnode.o drop_caches.o splice.o sync.o utimes.o \
-		stack.o revoke.o revoked_inode.o
+		stack.o
 
 ifeq ($(CONFIG_BLOCK),y)
 obj-y +=	buffer.o bio.o block_dev.o direct-io.o mpage.o ioprio.o
@@ -19,6 +19,7 @@ else
 obj-y +=	no-block.o
 endif
 
+obj-$(CONFIG_MMU)		+= revoke.o revoked_inode.o
 obj-$(CONFIG_INOTIFY)		+= inotify.o
 obj-$(CONFIG_INOTIFY_USER)	+= inotify_user.o
 obj-$(CONFIG_EPOLL)		+= eventpoll.o
_