Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [PATCH] f2fs: correct cp_ver for compatibility to old image | Date | Thu, 2 Mar 2017 11:22:33 +0800 |
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There is no CP_CRC_RECOVERY_FLAG tagged in checkpoint pack, calculate cp_version as old format.
Signed-off-by: Chao Yu <yuchao0@huawei.com> --- fs/f2fs/node.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 6c027b6833f4..0d46404ca769 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -2507,7 +2507,9 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi) f2fs_put_page(page, 1); } - cp_ver |= (cur_cp_crc(ckpt) << 32); + if (__is_set_ckpt_flags(ckpt, CP_CRC_RECOVERY_FLAG)) + cp_ver |= (cur_cp_crc(ckpt) << 32); + if (cpu_to_le64(cp_ver) != *(__le64 *)nm_i->nat_bits) { disable_nat_bits(sbi, true); return 0; -- 2.8.2.295.g3f1c1d0
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