linux-kernel - [PATCH 1/1] f2fs: merge equivalent flags F2FS_GET_BLOCK

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Date:   Tue, 8 Aug 2017 18:27:19 +0800
From:   sunqiuyang <sunqiuyang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>
CC:     <sunqiuyang@...wei.com>
Subject: [PATCH 1/1] f2fs: merge equivalent flags F2FS_GET_BLOCK_[READ|DIO]

From: Qiuyang Sun <sunqiuyang@...wei.com>

Currently, the two flags F2FS_GET_BLOCK_[READ|DIO] are totally equivalent
and can be used interchangably in all scenarios they are involved in. This
patch deletes F2FS_GET_BLOCK_READ and uses F2FS_GET_BLOCK_DIO instead.

Signed-off-by: Qiuyang Sun <sunqiuyang@...wei.com>
---
 fs/f2fs/data.c | 2 +-
 fs/f2fs/f2fs.h | 1 -
 fs/f2fs/file.c | 4 ++--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c43262d..e0a59bf 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1244,7 +1244,7 @@ static int f2fs_mpage_readpages(struct address_space *mapping,
 			map.m_len = last_block - block_in_file;
 
 			if (f2fs_map_blocks(inode, &map, 0,
-						F2FS_GET_BLOCK_READ))
+						F2FS_GET_BLOCK_DIO))
 				goto set_error_page;
 		}
 got_it:
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index cea329f..0593ca7 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -514,7 +514,6 @@ struct f2fs_map_blocks {
 };
 
 /* for flag in get_data_block */
-#define F2FS_GET_BLOCK_READ		0
 #define F2FS_GET_BLOCK_DIO		1
 #define F2FS_GET_BLOCK_FIEMAP		2
 #define F2FS_GET_BLOCK_BMAP		3
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index e2b33b8..8271cb5 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2074,7 +2074,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 	 */
 	while (map.m_lblk < pg_end) {
 		map.m_len = pg_end - map.m_lblk;
-		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_READ);
+		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DIO);
 		if (err)
 			goto out;
 
@@ -2116,7 +2116,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 
 do_map:
 		map.m_len = pg_end - map.m_lblk;
-		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_READ);
+		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DIO);
 		if (err)
 			goto clear_out;
 
-- 
1.8.3.1