From: Ning Qu <quning@google.com>
Date: Mon, 7 Apr 2014 22:37:24 +0000 (-0700)
Subject: mm: implement ->map_pages for shmem/tmpfs
X-Git-Tag: v3.15-rc1~57^2~131
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d7c1755179b82d954f593ca5285b9360f2f62e9c;p=linux.git

mm: implement ->map_pages for shmem/tmpfs

In shmem/tmpfs, we also use the generic filemap_map_pages, seems the
additional checking is not worth a separate version of map_pages for it.

Signed-off-by: Ning Qu <quning@google.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/shmem.c b/mm/shmem.c
index a3ba988ec946..70709347a1e2 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2723,6 +2723,7 @@ static const struct super_operations shmem_ops = {
 
 static const struct vm_operations_struct shmem_vm_ops = {
 	.fault		= shmem_fault,
+	.map_pages	= filemap_map_pages,
 #ifdef CONFIG_NUMA
 	.set_policy     = shmem_set_policy,
 	.get_policy     = shmem_get_policy,