Commit 1e79892e authored by Uros Bizjak's avatar Uros Bizjak Committed by Song Liu
Browse files

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: default avatarUros Bizjak <ubizjak@gmail.com>
Cc: Song Liu <song@kernel.org>
Cc: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: default avatarYu Kuai <yukuai3@huawei.com>
Reviewed-by: default avatarArtur Paszkiewicz <artur.paszkiewicz@intel.com>
Link: https://lore.kernel.org/r/20241007084831.48067-1-ubizjak@gmail.com


Signed-off-by: default avatarSong Liu <song@kernel.org>
parent 2a8f6153

drivers/md/raid5-ppl.c

+1 −1
Original line number Diff line number Diff line
@@ -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;