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Subject[PATCH -v2] f2fs: Remove lock from check_valid_map
Date
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;
}


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