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authorQiuyang Sun <sunqiuyang@huawei.com>2017-08-09 17:27:30 +0800
committerMister Oyster <oysterized@gmail.com>2017-10-04 15:33:36 +0200
commitaa9134909b8bfcee7332b09107103ea23c3899d3 (patch)
tree89159a81fc5846fdcf488fba809bbf927ec9bd1d
parent51bf5853e012152eea41342499ed03655714421c (diff)
f2fs: merge equivalent flags F2FS_GET_BLOCK_[READ|DIO]
Currently, the two flags F2FS_GET_BLOCK_[READ|DIO] are totally equivalent and can be used interchangably in all scenarios they are involved in. Neither of the flags is referenced in f2fs_map_blocks(), making them both the default case. To remove the ambiguity, this patch merges both flags into F2FS_GET_BLOCK_DEFAULT, and introduces an enum for all distinct flags. Signed-off-by: Qiuyang Sun <sunqiuyang@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
-rw-r--r--fs/f2fs/data.c4
-rw-r--r--fs/f2fs/f2fs.h13
-rw-r--r--fs/f2fs/file.c4
3 files changed, 11 insertions, 10 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 27ae81017..fa67b34f4 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1041,7 +1041,7 @@ static int get_data_block_dio(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create)
{
return __get_data_block(inode, iblock, bh_result, create,
- F2FS_GET_BLOCK_DIO, NULL);
+ F2FS_GET_BLOCK_DEFAULT, NULL);
}
static int get_data_block_bmap(struct inode *inode, sector_t iblock,
@@ -1240,7 +1240,7 @@ 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_DEFAULT))
goto set_error_page;
}
got_it:
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index b7ff37367..d9a421641 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -613,12 +613,13 @@ 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
-#define F2FS_GET_BLOCK_PRE_DIO 4
-#define F2FS_GET_BLOCK_PRE_AIO 5
+enum {
+ F2FS_GET_BLOCK_DEFAULT,
+ F2FS_GET_BLOCK_FIEMAP,
+ F2FS_GET_BLOCK_BMAP,
+ F2FS_GET_BLOCK_PRE_DIO,
+ F2FS_GET_BLOCK_PRE_AIO,
+};
/*
* i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 3a8eaf20e..f0759c2cb 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2075,7 +2075,7 @@ 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_DEFAULT);
if (err)
goto out;
@@ -2117,7 +2117,7 @@ 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_DEFAULT);
if (err)
goto clear_out;