linux-kernel - [PATCH 1/1] mm: implement ->map

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Message-Id: <1393625931-2858-2-git-send-email-quning@google.com>
Date:	Fri, 28 Feb 2014 14:18:51 -0800
From:	Ning Qu <quning@...gle.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc:	Andi Kleen <ak@...ux.intel.com>,
	Matthew Wilcox <matthew.r.wilcox@...el.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Dave Chinner <david@...morbit.com>, Ning Qu <quning@...il.com>,
	linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, Ning Qu <quning@...gle.com>
Subject: [PATCH 1/1] 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@...gle.com>
---
 mm/shmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index 1f18c9d..2ea4e89 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2783,6 +2783,7 @@ 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,
-- 
1.9.0.279.gdc9e3eb

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