diff options
| -rw-r--r-- | fs/f2fs/segment.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 6eaa98ea8ec6..4c246e351103 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -763,6 +763,30 @@ static void f2fs_submit_discard_endio(struct bio *bio) bio_put(bio); } +void __check_sit_bitmap(struct f2fs_sb_info *sbi, + block_t start, block_t end) +{ +#ifdef CONFIG_F2FS_CHECK_FS + struct seg_entry *sentry; + unsigned int segno; + block_t blk = start; + unsigned long offset, size, max_blocks = sbi->blocks_per_seg; + unsigned long *map; + + while (blk < end) { + segno = GET_SEGNO(sbi, blk); + sentry = get_seg_entry(sbi, segno); + offset = GET_BLKOFF_FROM_SEG0(sbi, blk); + + size = min((unsigned long)(end - blk), max_blocks); + map = (unsigned long *)(sentry->cur_valid_map); + offset = __find_rev_next_bit(map, size, offset); + f2fs_bug_on(sbi, offset != size); + blk += size; + } +#endif +} + /* this function is copied from blkdev_issue_discard from block/blk-lib.c */ static void __submit_discard_cmd(struct f2fs_sb_info *sbi, struct discard_cmd *dc) @@ -790,6 +814,7 @@ static void __submit_discard_cmd(struct f2fs_sb_info *sbi, bio->bi_opf |= REQ_SYNC; submit_bio(bio); list_move_tail(&dc->list, &dcc->wait_list); + __check_sit_bitmap(sbi, dc->start, dc->start + dc->len); } } else { __remove_discard_cmd(sbi, dc); |