It missed to cast variable to unsigned long long type before
bit shift, which will cause overflow, fix it.
Fixes: f7ef9b83b583 ("f2fs: introduce macros to convert bytes and blocks in
f2fs")
Signed-off-by: Chao Yu <[email protected]>
---
include/linux/f2fs_fs.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index b0b821edfd97..3b2ad444c002 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -24,10 +24,10 @@
#define NEW_ADDR ((block_t)-1) /* used as block_t addresses */
#define COMPRESS_ADDR ((block_t)-2) /* used as compressed data flag
*/
-#define F2FS_BYTES_TO_BLK(bytes) ((bytes) >> F2FS_BLKSIZE_BITS)
-#define F2FS_BLK_TO_BYTES(blk) ((blk) << F2FS_BLKSIZE_BITS)
+#define F2FS_BYTES_TO_BLK(bytes) ((unsigned long long)(bytes) >>
F2FS_BLKSIZE_BITS)
+#define F2FS_BLK_TO_BYTES(blk) ((unsigned long long)(blk) <<
F2FS_BLKSIZE_BITS)
#define F2FS_BLK_END_BYTES(blk) (F2FS_BLK_TO_BYTES(blk + 1) - 1)
-#define F2FS_BLK_ALIGN(x) (F2FS_BYTES_TO_BLK((x) +
F2FS_BLKSIZE - 1))
+#define F2FS_BLK_ALIGN(x) (F2FS_BYTES_TO_BLK((x) + F2FS_BLKSIZE -
1))
/* 0, 1(node nid), 2(meta nid) are reserved node id */
#define F2FS_RESERVED_NODE_NUM 3
--
2.40.1
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