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

JIRA: https://issues.redhat.com/browse/RHEL-73514

commit 1e79892e76a78f33deecc895086bef92d8147183
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Mon Oct 7 10:48:04 2024 +0200

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

    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>
    Reviewed-by: Yu Kuai <yukuai3@huawei.com>
    Reviewed-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
    Link: https://lore.kernel.org/r/20241007084831.48067-1-ubizjak@gmail.com
    Signed-off-by: Song Liu <song@kernel.org>

Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
This commit is contained in:
Nigel Croxon 2025-03-05 12:50:24 -05:00
parent 66243da722
commit c516c7ab4a
1 changed files with 1 additions and 1 deletions
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2
drivers/md/raid5-ppl.c
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@ -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;