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f2fs: clean up f2fs_map_blocks 

f2fs_map_blocks():

if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR) {
	if (create) {
		...
	} else {
		...
		if (flag == F2FS_GET_BLOCK_FIEMAP &&
					blkaddr == NULL_ADDR) {
			...
		}
		if (flag != F2FS_GET_BLOCK_FIEMAP ||
					blkaddr != NEW_ADDR)
			goto sync_out;
	}

It means we can break the loop in cases of:
a) flag != F2FS_GET_BLOCK_FIEMAP or
b) flag == F2FS_GET_BLOCK_FIEMAP && blkaddr == NULL_ADDR

Condition b) is the same as previous one, so merge operations of them
for readability.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2017-11-30 19:28:22 +08:00 committed by Jaegeuk Kim
parent 416d2dbb4e
commit 4c2ac6a860
1 changed files with 2 additions and 2 deletions
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4
fs/f2fs/data.c
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@ -987,9 +987,9 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
blkaddr == NULL_ADDR) {
if (map->m_next_pgofs)
*map->m_next_pgofs = pgofs + 1;
goto sync_out;
}
if (flag != F2FS_GET_BLOCK_FIEMAP ||
blkaddr != NEW_ADDR)
if (flag != F2FS_GET_BLOCK_FIEMAP)
goto sync_out;
}
}