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-rw-r--r--fs/jbd2/recovery.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 626846bac32f..d4851464b57e 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -399,18 +399,17 @@ static int jbd2_commit_block_csum_verify(journal_t *j, void *buf)
static int jbd2_block_tag_csum_verify(journal_t *j, journal_block_tag_t *tag,
void *buf, __u32 sequence)
{
- __u32 provided, calculated;
+ __u32 csum32;
if (!JBD2_HAS_INCOMPAT_FEATURE(j, JBD2_FEATURE_INCOMPAT_CSUM_V2))
return 1;
sequence = cpu_to_be32(sequence);
- calculated = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&sequence,
- sizeof(sequence));
- calculated = jbd2_chksum(j, calculated, buf, j->j_blocksize);
- provided = be32_to_cpu(tag->t_checksum);
+ csum32 = jbd2_chksum(j, j->j_csum_seed, (__u8 *)&sequence,
+ sizeof(sequence));
+ csum32 = jbd2_chksum(j, csum32, buf, j->j_blocksize);
- return provided == cpu_to_be32(calculated);
+ return tag->t_checksum == cpu_to_be16(csum32);
}
static int do_one_pass(journal_t *journal,