From patchwork Tue Jun 5 13:29:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josef Bacik X-Patchwork-Id: 10448237 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DC85D6024A for ; Tue, 5 Jun 2018 13:30:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C2B0D2942B for ; Tue, 5 Jun 2018 13:30:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 76989294A4; Tue, 5 Jun 2018 13:30:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 74907294A7 for ; Tue, 5 Jun 2018 13:30:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752081AbeFENaL (ORCPT ); Tue, 5 Jun 2018 09:30:11 -0400 Received: from mail-qt0-f174.google.com ([209.85.216.174]:38065 "EHLO mail-qt0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752054AbeFENaD (ORCPT ); Tue, 5 Jun 2018 09:30:03 -0400 Received: by mail-qt0-f174.google.com with SMTP id x34-v6so2349484qtk.5 for ; Tue, 05 Jun 2018 06:30:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=a9+UtxgxIpUvzBRIeHZNXw5T1d8Q+T1w06fzA+96JXU=; b=qlwla2A0nBGUjCvWV1jftZMVKLrbXhHaPtOrmOgOdQju1qu9EJq1OEBWoUNP4ifbWm ASnBn4m+eNSCdM/uU1ivTNdMjiU0Ma8CWQjDmfkJ+kv3mOM3SWMthxq+PZoy9KgezCkq GSiNrxGZsr93qv0ZSZJfWhR1LFb1LGNuntvCfcQaWFKTyZvR2eThRhRH2qCatRxBdzIq UFokDAkEH1f0hePTjAje5xm5uQf4imbX2CL7wgYpWW47AlwNGIwW9Pc+hvIb+kvwhnTo eu7P1vc0K0t/2l/4iKF6OeyELMcVan0k56hY1SBJDVM+5uMPdoj95oi1w402BO2/Stl4 HuAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=a9+UtxgxIpUvzBRIeHZNXw5T1d8Q+T1w06fzA+96JXU=; b=M/EzxtPpnul1AVZ3NYRoHFL+n2eXRYnYxl8m7BEW9cp/P3GMAmTO1dkOL7nGOCL4fP OZnkFPRobs4V8vTfuiLjnh7sZDsnHT5RA0bLrVs2YR/Vx6VkM+q5aIt0AgAPfrVCmux8 Yv1mEY2iZKkBEVUxHYvP6lfDM57YvNfnvwmiXRa0tNNaJ4vTxCTgAbz53aT11aaDn0Gg 3ZqQx0VO441rJ2nv6Bxya0v4HfbT/keqV0xBPEho+wefdTswmhE3sRsO0kBeyufdmUCh tsH7bkr+73XASu1uTrgWiTHCJdnIGG915bs1RNu56G1+4WE0kfrHvfJqpsr7EEWOu9h2 Nbbg== X-Gm-Message-State: APt69E2ORbw429zt5Pqq+6NptozYLloC4NjEE6ZHosMvp+MH+RXvuqBp lOw6mKsGCrE8z9Wg6DsXHLhNLA== X-Google-Smtp-Source: ADUXVKJUwn3QEpQ49eZeDzbKIVGFhaDvPGwrgyZJPxx09zlsKULzvjE0WL9z/vNTaw9ejzcVe9MBBQ== X-Received: by 2002:ac8:70c9:: with SMTP id g9-v6mr15846555qtp.376.1528205402332; Tue, 05 Jun 2018 06:30:02 -0700 (PDT) Received: from localhost ([107.15.81.208]) by smtp.gmail.com with ESMTPSA id n21-v6sm10386231qtc.38.2018.06.05.06.30.01 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 05 Jun 2018 06:30:01 -0700 (PDT) From: Josef Bacik To: axboe@kernel.dk, kernel-team@fb.com, linux-block@vger.kernel.org, akpm@linux-foundation.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, tj@kernel.org, linux-fsdevel@vger.kernel.org Cc: Josef Bacik Subject: [PATCH 08/13] blk-stat: export helpers for modifying blk_rq_stat Date: Tue, 5 Jun 2018 09:29:43 -0400 Message-Id: <20180605132948.1664-9-josef@toxicpanda.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180605132948.1664-1-josef@toxicpanda.com> References: <20180605132948.1664-1-josef@toxicpanda.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Josef Bacik We need to use blk_rq_stat in the blkcg qos stuff, so export some of these helpers so they can be used by other things. Signed-off-by: Josef Bacik Acked-by: Tejun Heo --- block/blk-stat.c | 16 ++++++++-------- block/blk-stat.h | 4 ++++ 2 files changed, 12 insertions(+), 8 deletions(-) diff --git a/block/blk-stat.c b/block/blk-stat.c index 175c143ac5b9..7587b1c3caaf 100644 --- a/block/blk-stat.c +++ b/block/blk-stat.c @@ -17,7 +17,7 @@ struct blk_queue_stats { bool enable_accounting; }; -static void blk_stat_init(struct blk_rq_stat *stat) +void blk_rq_stat_init(struct blk_rq_stat *stat) { stat->min = -1ULL; stat->max = stat->nr_samples = stat->mean = 0; @@ -25,7 +25,7 @@ static void blk_stat_init(struct blk_rq_stat *stat) } /* src is a per-cpu stat, mean isn't initialized */ -static void blk_stat_sum(struct blk_rq_stat *dst, struct blk_rq_stat *src) +void blk_rq_stat_sum(struct blk_rq_stat *dst, struct blk_rq_stat *src) { if (!src->nr_samples) return; @@ -39,7 +39,7 @@ static void blk_stat_sum(struct blk_rq_stat *dst, struct blk_rq_stat *src) dst->nr_samples += src->nr_samples; } -static void __blk_stat_add(struct blk_rq_stat *stat, u64 value) +void blk_rq_stat_add(struct blk_rq_stat *stat, u64 value) { stat->min = min(stat->min, value); stat->max = max(stat->max, value); @@ -69,7 +69,7 @@ void blk_stat_add(struct request *rq, u64 now) continue; stat = &get_cpu_ptr(cb->cpu_stat)[bucket]; - __blk_stat_add(stat, value); + blk_rq_stat_add(stat, value); put_cpu_ptr(cb->cpu_stat); } rcu_read_unlock(); @@ -82,15 +82,15 @@ static void blk_stat_timer_fn(struct timer_list *t) int cpu; for (bucket = 0; bucket < cb->buckets; bucket++) - blk_stat_init(&cb->stat[bucket]); + blk_rq_stat_init(&cb->stat[bucket]); for_each_online_cpu(cpu) { struct blk_rq_stat *cpu_stat; cpu_stat = per_cpu_ptr(cb->cpu_stat, cpu); for (bucket = 0; bucket < cb->buckets; bucket++) { - blk_stat_sum(&cb->stat[bucket], &cpu_stat[bucket]); - blk_stat_init(&cpu_stat[bucket]); + blk_rq_stat_sum(&cb->stat[bucket], &cpu_stat[bucket]); + blk_rq_stat_init(&cpu_stat[bucket]); } } @@ -143,7 +143,7 @@ void blk_stat_add_callback(struct request_queue *q, cpu_stat = per_cpu_ptr(cb->cpu_stat, cpu); for (bucket = 0; bucket < cb->buckets; bucket++) - blk_stat_init(&cpu_stat[bucket]); + blk_rq_stat_init(&cpu_stat[bucket]); } spin_lock(&q->stats->lock); diff --git a/block/blk-stat.h b/block/blk-stat.h index 78399cdde9c9..f4a1568e81a4 100644 --- a/block/blk-stat.h +++ b/block/blk-stat.h @@ -159,4 +159,8 @@ static inline void blk_stat_activate_msecs(struct blk_stat_callback *cb, mod_timer(&cb->timer, jiffies + msecs_to_jiffies(msecs)); } +void blk_rq_stat_add(struct blk_rq_stat *, u64); +void blk_rq_stat_sum(struct blk_rq_stat *, struct blk_rq_stat *); +void blk_rq_stat_init(struct blk_rq_stat *); + #endif