From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A85DBC04EB8 for ; Tue, 4 Dec 2018 19:54:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6452B214DB for ; Tue, 4 Dec 2018 19:54:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=toxicpanda-com.20150623.gappssmtp.com header.i=@toxicpanda-com.20150623.gappssmtp.com header.b="CE3eM1wH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6452B214DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=toxicpanda.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726472AbeLDTym (ORCPT ); Tue, 4 Dec 2018 14:54:42 -0500 Received: from mail-yb1-f196.google.com ([209.85.219.196]:34480 "EHLO mail-yb1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726375AbeLDTyl (ORCPT ); Tue, 4 Dec 2018 14:54:41 -0500 Received: by mail-yb1-f196.google.com with SMTP id a67-v6so7405654ybg.1 for ; Tue, 04 Dec 2018 11:54:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=KEmiKoLuZH21McZzbS+ZG3EgftTYemLlSyZsFUMBzK0=; b=CE3eM1wH8tK+rtHYU5qpr6P7pNFWJvVDn/n+QQY1lAYyhgD3pKLRyEjKULYFeTcCsa 02D3UKuzHpNL0z7Jtt1FjqUP+ATABkn2VVhdRD8KrH3LlIiRBfVs9vTZ9vhcKywL/ndM 9w0kvUmz4E9zJFkZM+N+dm3LWmAy1hd7+AK3rbGTGKPvEllgsE4IT6Bcg5OZxPzSGmFN nmJOtFeR0d7FHMxdFi5bxYkVQ2IDe9kqAQ1hg55blK5+B67rLA68/vl57cT1sXW58cG6 lJYAPYKAor3GdHpwTzsD82EmhQb4edjuKY6o5YZOtb04dz4ArtbGxmy2zbUxtQLOgMhS hJbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=KEmiKoLuZH21McZzbS+ZG3EgftTYemLlSyZsFUMBzK0=; b=C0uAhqye5GAZ15KaNAnBrLKrQ1tFOQVhmfaKA11XZxGaVIE8juZIjaHR984wEMFv8Z x7wh0BnF178m77+BWEfeSzlr6Cp6Me/VnbZJoXE0WzQfm5Y5gi2eQAMKbkySwRYaVKgM OtMPg33NitObu/jqJE84do3mSMk1gPMSnMqgd4vXb8Nn4Ke+b8vLWM0Fr6k72tzJ9o1f bv1qQBUqwkC1YcWBYtwvGpln7aELtoMK4aP2XsbiBoEQhZfZOZOSGzN9UmFq9rHdj425 y0ykvFJrgbn4RiuevTsvSDXQ3RE1kGuSAOsl+sp/T6MDx53ZZ2LwOvOJ4kIplHHoLf1C Be2g== X-Gm-Message-State: AA+aEWZzElZVtNXnuEu+pIdGJmQ3S/WCtw19c2GPq7wmo5D0HLq3ZekL rdoxDY4MqK4NPrH1XxYlO60O9g== X-Google-Smtp-Source: AFSGD/U2cjYhFlXInnxI7qEMOWmmELH91uMHtImiK7MAZyWbSTrSJasgTruMiNcL1Y5wHB/VaDtTBg== X-Received: by 2002:a25:ca94:: with SMTP id a142mr14897560ybg.151.1543953280440; Tue, 04 Dec 2018 11:54:40 -0800 (PST) Received: from localhost ([107.15.81.208]) by smtp.gmail.com with ESMTPSA id x4sm20572269ywj.80.2018.12.04.11.54.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 04 Dec 2018 11:54:39 -0800 (PST) Date: Tue, 4 Dec 2018 14:54:38 -0500 From: Josef Bacik To: Dennis Zhou Cc: Jens Axboe , Tejun Heo , Johannes Weiner , Josef Bacik , kernel-team@fb.com, linux-block@vger.kernel.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 13/14] blkcg: change blkg reference counting to use percpu_ref Message-ID: <20181204195437.cqixsk265n6dyetv@MacBook-Pro-91.local> References: <20181204183600.99746-1-dennis@kernel.org> <20181204183600.99746-14-dennis@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181204183600.99746-14-dennis@kernel.org> User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 04, 2018 at 01:35:59PM -0500, Dennis Zhou wrote: > Every bio is now associated with a blkg putting blkg_get, blkg_try_get, > and blkg_put on the hot path. Switch over the refcnt in blkg to use > percpu_ref. > > Signed-off-by: Dennis Zhou > Acked-by: Tejun Heo Reviewed-by: Josef Bacik Thanks, Josef