f2fs: fix wrong block count instead of bytes

We should convert cur_lblock, a block count, to bytes for len. Fixes: af4b6b8 ("f2fs: introduce check_swap_activate_fast()") Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]>
josf · Dec 3, 2020 · 963ba7f · 963ba7f
1 parent 43b9d4b
commit 963ba7f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
@@ -3893,7 +3893,7 @@ static int check_swap_activate_fast(struct swap_info_struct *sis,
 	sector_t highest_pblock = 0;
 	int nr_extents = 0;
 	unsigned long nr_pblocks;
-	unsigned long len;
+	u64 len;
 	int ret;
 
 	/*
@@ -3911,7 +3911,7 @@ static int check_swap_activate_fast(struct swap_info_struct *sis,
 		cond_resched();
 
 		memset(&map_bh, 0, sizeof(struct buffer_head));
-		map_bh.b_size = len - cur_lblock;
+		map_bh.b_size = len - blks_to_bytes(inode, cur_lblock);
 
 		ret = get_data_block(inode, cur_lblock, &map_bh, 0,
 					F2FS_GET_BLOCK_FIEMAP, &next_pgofs);