From c01e54b770e69c65525295eb2668be3dc0822406 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 17 Jan 2013 20:30:23 +0900
Subject: f2fs: support swapfile

This patch adds f2fs_bmap operation to the data address space.
This enables f2fs to support swapfile.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/data.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'fs/f2fs/data.c')

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b1347fc6d688..7bd22a201125 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -698,6 +698,11 @@ static int f2fs_set_data_page_dirty(struct page *page)
 	return 0;
 }
 
+static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
+{
+	return generic_block_bmap(mapping, block, get_data_block_ro);
+}
+
 const struct address_space_operations f2fs_dblock_aops = {
 	.readpage	= f2fs_read_data_page,
 	.readpages	= f2fs_read_data_pages,
@@ -709,4 +714,5 @@ const struct address_space_operations f2fs_dblock_aops = {
 	.invalidatepage	= f2fs_invalidate_data_page,
 	.releasepage	= f2fs_release_data_page,
 	.direct_IO	= f2fs_direct_IO,
+	.bmap		= f2fs_bmap,
 };
-- 
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