tree eb0bfee85c069ec493d575b429ce6fe02e000846
parent 8d362cb3bfbbaea8f3ea44d785408c719b5f6cef
author Kirill A. Shutemov <kirill.shutemov@linux.intel.com> 1503701733 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1504081306 +0200

mm, shmem: fix handling /sys/kernel/mm/transparent_hugepage/shmem_enabled

commit 435c0b87d661da83771c30ed775f7c37eed193fb upstream.

/sys/kernel/mm/transparent_hugepage/shmem_enabled controls if we want
to allocate huge pages when allocate pages for private in-kernel shmem
mount.

Unfortunately, as Dan noticed, I've screwed it up and the only way to
make kernel allocate huge page for the mount is to use "force" there.
All other values will be effectively ignored.

Link: http://lkml.kernel.org/r/20170822144254.66431-1-kirill.shutemov@linux.intel.com
Fixes: 5a6e75f8110c ("shmem: prepare huge= mount option and sysfs knob")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>