Commit 861703b4 authored by Santosh Kumar Pradhan's avatar Santosh Kumar Pradhan Committed by Leon Romanovsky
Browse files

RDMA/rtrs-clt: Use this_cpu_ API for stats 

Use this_cpu_x() for increasing/adding a percpu counter through a
percpu pointer without the need to disable/enable preemption.

Link: https://lore.kernel.org/r/20220712103113.617754-3-haris.iqbal@ionos.com


Suggested-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarSantosh Kumar Pradhan <santosh.pradhan@ionos.com>
Signed-off-by: default avatarJack Wang <jinpu.wang@ionos.com>
Signed-off-by: default avatarMd Haris Iqbal <haris.iqbal@ionos.com>
Acked-by: default avatarGuoqing Jiang <guoqing.jiang@linux.dev>
Reviewed-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent ed6e5382

drivers/infiniband/ulp/rtrs/rtrs-clt-stats.c

+3 −11
Original line number Diff line number Diff line
@@ -32,11 +32,7 @@ void rtrs_clt_update_wc_stats(struct rtrs_clt_con *con) 


void rtrs_clt_inc_failover_cnt(struct rtrs_clt_stats *stats)

{

	struct rtrs_clt_stats_pcpu *s;



	s = get_cpu_ptr(stats->pcpu_stats);

	s->rdma.failover_cnt++;

	put_cpu_ptr(stats->pcpu_stats);

	this_cpu_inc(stats->pcpu_stats->rdma.failover_cnt);

}



int rtrs_clt_stats_migration_from_cnt_to_str(struct rtrs_clt_stats *stats, char *buf)
@@ -169,12 +165,8 @@ int rtrs_clt_reset_all_stats(struct rtrs_clt_stats *s, bool enable) 
static inline void rtrs_clt_update_rdma_stats(struct rtrs_clt_stats *stats,

					       size_t size, int d)

{

	struct rtrs_clt_stats_pcpu *s;



	s = get_cpu_ptr(stats->pcpu_stats);

	s->rdma.dir[d].cnt++;

	s->rdma.dir[d].size_total += size;

	put_cpu_ptr(stats->pcpu_stats);

	this_cpu_inc(stats->pcpu_stats->rdma.dir[d].cnt);

	this_cpu_add(stats->pcpu_stats->rdma.dir[d].size_total, size);

}



void rtrs_clt_update_all_stats(struct rtrs_clt_io_req *req, int dir)