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 <[email protected]>
Signed-off-by: Pankaj Kumar <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
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 @@
{
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);
