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-rw-r--r--fs/f2fs/segment.h19
1 files changed, 15 insertions, 4 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 001d4c4d97fd..269f690b4e24 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -547,8 +547,9 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
{
struct f2fs_sm_info *sm_info = SM_I(sbi);
unsigned int end_segno = sm_info->segment_count - 1;
+ bool is_valid = test_bit_le(0, raw_sit->valid_map) ? true : false;
int valid_blocks = 0;
- int i;
+ int cur_pos = 0, next_pos;
/* check segment usage */
BUG_ON(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg);
@@ -557,9 +558,19 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
BUG_ON(segno > end_segno);
/* check bitmap with valid block count */
- for (i = 0; i < sbi->blocks_per_seg; i++)
- if (f2fs_test_bit(i, raw_sit->valid_map))
- valid_blocks++;
+ do {
+ if (is_valid) {
+ next_pos = find_next_zero_bit_le(&raw_sit->valid_map,
+ sbi->blocks_per_seg,
+ cur_pos);
+ valid_blocks += next_pos - cur_pos;
+ } else
+ next_pos = find_next_bit_le(&raw_sit->valid_map,
+ sbi->blocks_per_seg,
+ cur_pos);
+ cur_pos = next_pos;
+ is_valid = !is_valid;
+ } while (cur_pos < sbi->blocks_per_seg);
BUG_ON(GET_SIT_VBLOCKS(raw_sit) != valid_blocks);
}
#else