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authorNamjae Jeon <namjae.jeon@samsung.com>2013-06-16 09:49:11 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-07-02 08:48:14 +0900
commit8736fbf00372dcc0bc7b04b86d737eb5db31fff6 (patch)
tree32daf73a5157e2a72cae11fb9fdace1f78488cac /fs/f2fs
parent060dd67b3c0d451ea2c41e6a87811b4736a984e4 (diff)
downloadop-kernel-dev-8736fbf00372dcc0bc7b04b86d737eb5db31fff6.zip
op-kernel-dev-8736fbf00372dcc0bc7b04b86d737eb5db31fff6.tar.gz
f2fs: optimize the init_dirty_segmap function
Optimize the while loop condition Since this condition will always be true and while loop will be terminated by the following condition in code: if (segno >= TOTAL_SEGS(sbi)) break; Hence we can replace the while loop condition with while(1) instead of always checking for segno to be less than Total segs. Also we do not need to use TOTAL_SEGS() everytime. We can store this value in a local variable since this value is constant. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/segment.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0e1a60a..3ac4d29 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1582,13 +1582,13 @@ static void init_dirty_segmap(struct f2fs_sb_info *sbi)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
struct free_segmap_info *free_i = FREE_I(sbi);
- unsigned int segno = 0, offset = 0;
+ unsigned int segno = 0, offset = 0, total_segs = TOTAL_SEGS(sbi);
unsigned short valid_blocks;
- while (segno < TOTAL_SEGS(sbi)) {
+ while (1) {
/* find dirty segment based on free segmap */
- segno = find_next_inuse(free_i, TOTAL_SEGS(sbi), offset);
- if (segno >= TOTAL_SEGS(sbi))
+ segno = find_next_inuse(free_i, total_segs, offset);
+ if (segno >= total_segs)
break;
offset = segno + 1;
valid_blocks = get_valid_blocks(sbi, segno, 0);
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