From: Uros Bizjak <ubizjak@gmail.com>
To: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>, Song Liu <song@kernel.org>,
Yu Kuai <yukuai3@huawei.com>
Subject: [PATCH] md/raid5-ppl: Use atomic64_inc_return() in ppl_new_iounit()
Date: Mon, 7 Oct 2024 10:48:04 +0200 [thread overview]
Message-ID: <20241007084831.48067-1-ubizjak@gmail.com> (raw)
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@gmail.com>
Cc: Song Liu <song@kernel.org>
Cc: Yu Kuai <yukuai3@huawei.com>
---
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
next reply other threads:[~2024-10-07 8:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-07 8:48 Uros Bizjak [this message]
2024-10-08 7:07 ` Yu Kuai
2024-10-08 7:38 ` Artur Paszkiewicz
2024-10-18 16:00 ` Song Liu
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