From: Wanpeng Li Date: Fri, 6 Mar 2015 07:00:55 +0000 (+0800) Subject: f2fs: reduce searching region of segmap when set free section X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7fd97019b8db0668a4eb8b08d707bdce9f51d58e;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git f2fs: reduce searching region of segmap when set free section In __set_free we will check whether all segment are free in one section when free one segment, in order to set section to free status. But the searching region of segmap is from start segno to last segno of main area, it's not necessary. So let's just only check all segment bitmap of target section. Signed-off-by: Wanpeng Li Signed-off-by: Jaegeuk Kim --- diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 7fd35111cf62..85d7fa7514b2 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -336,7 +336,8 @@ static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno) clear_bit(segno, free_i->free_segmap); free_i->free_segments++; - next = find_next_bit(free_i->free_segmap, MAIN_SEGS(sbi), start_segno); + next = find_next_bit(free_i->free_segmap, + start_segno + sbi->segs_per_sec, start_segno); if (next >= start_segno + sbi->segs_per_sec) { clear_bit(secno, free_i->free_secmap); free_i->free_sections++;