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f4e1357184
Convert server stat counters from atomic to per-cpu variables. Link: https://lore.kernel.org/r/20220712103113.617754-4-haris.iqbal@ionos.com Signed-off-by: Santosh Kumar Pradhan <santosh.pradhan@ionos.com> Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* RDMA Transport Layer
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*
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* Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
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* Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
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* Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
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*/
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#undef pr_fmt
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#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
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#include "rtrs-srv.h"
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int rtrs_srv_reset_rdma_stats(struct rtrs_srv_stats *stats, bool enable)
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{
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if (enable) {
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int cpu;
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struct rtrs_srv_stats_rdma_stats *r;
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for_each_possible_cpu(cpu) {
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r = per_cpu_ptr(stats->rdma_stats, cpu);
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memset(r, 0, sizeof(*r));
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}
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return 0;
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}
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return -EINVAL;
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}
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ssize_t rtrs_srv_stats_rdma_to_str(struct rtrs_srv_stats *stats, char *page)
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{
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int cpu;
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struct rtrs_srv_stats_rdma_stats sum;
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struct rtrs_srv_stats_rdma_stats *r;
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memset(&sum, 0, sizeof(sum));
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for_each_possible_cpu(cpu) {
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r = per_cpu_ptr(stats->rdma_stats, cpu);
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sum.dir[READ].cnt += r->dir[READ].cnt;
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sum.dir[READ].size_total += r->dir[READ].size_total;
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sum.dir[WRITE].cnt += r->dir[WRITE].cnt;
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sum.dir[WRITE].size_total += r->dir[WRITE].size_total;
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}
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return sysfs_emit(page, "%llu %llu %llu %llu\n",
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sum.dir[READ].cnt, sum.dir[READ].size_total,
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sum.dir[WRITE].cnt, sum.dir[WRITE].size_total);
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}
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