diff options
| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-06-19 20:47:19 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-07-02 08:47:35 +0900 |
| commit | 7e586fa0244578320fcced9cc08c6b124f727c35 (patch) | |
| tree | fb95e07a67d211f84d8722b4240c4c826822c4df /fs/f2fs/checkpoint.c | |
| parent | 696c018c7718f5e33e1107da19c4d64a25018878 (diff) | |
f2fs: fix crc endian conversion
While calculating CRC for the checkpoint block, we use __u32, but when storing
the crc value to the disk, we use __le32.
Let's fix the inconsistency.
Reported-and-Tested-by: Oded Gabbay <ogabbay@advaoptical.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 9a775090922..66a6b85a51d 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -357,8 +357,8 @@ static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, unsigned long blk_size = sbi->blocksize; struct f2fs_checkpoint *cp_block; unsigned long long cur_version = 0, pre_version = 0; - unsigned int crc = 0; size_t crc_offset; + __u32 crc = 0; /* Read the 1st cp block in this CP pack */ cp_page_1 = get_meta_page(sbi, cp_addr); @@ -369,7 +369,7 @@ static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, if (crc_offset >= blk_size) goto invalid_cp1; - crc = *(unsigned int *)((unsigned char *)cp_block + crc_offset); + crc = le32_to_cpu(*((__u32 *)((unsigned char *)cp_block + crc_offset))); if (!f2fs_crc_valid(crc, cp_block, crc_offset)) goto invalid_cp1; @@ -384,7 +384,7 @@ static struct page *validate_checkpoint(struct f2fs_sb_info *sbi, if (crc_offset >= blk_size) goto invalid_cp2; - crc = *(unsigned int *)((unsigned char *)cp_block + crc_offset); + crc = le32_to_cpu(*((__u32 *)((unsigned char *)cp_block + crc_offset))); if (!f2fs_crc_valid(crc, cp_block, crc_offset)) goto invalid_cp2; @@ -648,7 +648,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount) block_t start_blk; struct page *cp_page; unsigned int data_sum_blocks, orphan_blocks; - unsigned int crc32 = 0; + __u32 crc32 = 0; void *kaddr; int i; @@ -717,8 +717,8 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount) get_nat_bitmap(sbi, __bitmap_ptr(sbi, NAT_BITMAP)); crc32 = f2fs_crc32(ckpt, le32_to_cpu(ckpt->checksum_offset)); - *(__le32 *)((unsigned char *)ckpt + - le32_to_cpu(ckpt->checksum_offset)) + *((__le32 *)((unsigned char *)ckpt + + le32_to_cpu(ckpt->checksum_offset))) = cpu_to_le32(crc32); start_blk = __start_cp_addr(sbi); |