diff options
| author | Chen Cheng <chencheng@fnnas.com> | 2026-06-18 10:57:35 +0800 |
|---|---|---|
| committer | Yu Kuai <yukuai@fygo.io> | 2026-06-21 05:21:07 +0800 |
| commit | 00e93faf4cea9e8802ac5dfee0952d84fc95c40f (patch) | |
| tree | 94ac82a130ecd614dc13bd8a98b056b780fde182 | |
| parent | 601d3c21b2e26b676cc67ae8804e991bbbcd4507 (diff) | |
md/raid5: let stripe batch bm_seq comparison wrap-safe
Once the 32-bit seq wraps, a newer bm_seq can look smaller
than old, so .. covert to wrap-safe calculate way.
Signed-off-by: Chen Cheng <chencheng@fnnas.com>
Link: https://patch.msgid.link/20260618025735.915113-1-chencheng@fnnas.com
Signed-off-by: Yu Kuai <yukuai@fygo.io>
| -rw-r--r-- | drivers/md/raid5.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 180ff0660b6a..f35c2a7b2be1 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -996,7 +996,7 @@ static void stripe_add_to_batch_list(struct r5conf *conf, if (test_and_clear_bit(STRIPE_BIT_DELAY, &sh->state)) { int seq = sh->bm_seq; if (test_bit(STRIPE_BIT_DELAY, &sh->batch_head->state) && - sh->batch_head->bm_seq > seq) + sh->batch_head->bm_seq - seq > 0) seq = sh->batch_head->bm_seq; set_bit(STRIPE_BIT_DELAY, &sh->batch_head->state); sh->batch_head->bm_seq = seq; |