[PATCH] md/raid5-ppl: Use atomic64_inc_return() in ppl_new_iounit()

From: Uros Bizjak
Date: Mon Oct 07 2024 - 04:48:42 EST


Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref)
to use optimized implementation and ease register pressure around
the primitive for targets that implement optimized variant.

Signed-off-by: Uros Bizjak <ubizjak@xxxxxxxxx>
Cc: Song Liu <song@xxxxxxxxxx>
Cc: Yu Kuai <yukuai3@xxxxxxxxxx>
---
drivers/md/raid5-ppl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index a70cbec12ed0..37c4da5311ca 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -258,7 +258,7 @@ static struct ppl_io_unit *ppl_new_iounit(struct ppl_log *log,
memset(pplhdr->reserved, 0xff, PPL_HDR_RESERVED);
pplhdr->signature = cpu_to_le32(ppl_conf->signature);

- io->seq = atomic64_add_return(1, &ppl_conf->seq);
+ io->seq = atomic64_inc_return(&ppl_conf->seq);
pplhdr->generation = cpu_to_le64(io->seq);

return io;
--
2.46.2