Messages in this thread Patch in this message | | | From | Huang Ying <> | Subject | [PATCH -v2] f2fs: Remove lock from check_valid_map | Date | Sun, 7 Sep 2014 11:38:30 +0800 |
| |
Only one bit is read in check_valid_map, holding a lock to do that doesn't help anything except decreasing performance.
Signed-off-by: Huang, Ying <ying.huang@intel.com> ---
v2: Fixed a build warning.
--- fs/f2fs/gc.c | 3 --- 1 file changed, 3 deletions(-)
--- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -378,14 +378,11 @@ static void put_gc_inode(struct list_hea static int check_valid_map(struct f2fs_sb_info *sbi, unsigned int segno, int offset) { - struct sit_info *sit_i = SIT_I(sbi); struct seg_entry *sentry; int ret; - mutex_lock(&sit_i->sentry_lock); sentry = get_seg_entry(sbi, segno); ret = f2fs_test_bit(offset, sentry->cur_valid_map); - mutex_unlock(&sit_i->sentry_lock); return ret; }
| |