[PATCH v1 2/8] md/raid5: Move stripe_add_to_batch_list() call out of add_stripe_bio()

From: Logan Gunthorpe
Date: Thu Apr 07 2022 - 13:22:57 EST


stripe_add_to_batch_list() is better done in the loop in make_request
instead of inside add_stripe_bio(). This is clearer and allows for
storing the batch_head state outside the loop in a subsequent patch.

The call to add_stripe_bio() in retry_aligned_read() is for a read only
and thus wouldn't have added the batch anyway.

No functional changes intended.

Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
---
drivers/md/raid5.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b794253efd15..e3c75b3b8923 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3504,8 +3504,6 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx,
}
spin_unlock_irq(&sh->stripe_lock);

- if (stripe_can_batch(sh))
- stripe_add_to_batch_list(conf, sh);
return 1;

overlap:
@@ -5918,6 +5916,9 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
goto retry;
}

+ if (stripe_can_batch(sh))
+ stripe_add_to_batch_list(conf, sh);
+
if (do_flush) {
set_bit(STRIPE_R5C_PREFLUSH, &sh->state);
/* we only need flush for one stripe */
--
2.30.2