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=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 80501C388F7 for ; Wed, 4 Nov 2020 09:49:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 243E920781 for ; Wed, 4 Nov 2020 09:49:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="tmKeQ6ET" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728465AbgKDJtJ (ORCPT ); Wed, 4 Nov 2020 04:49:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726564AbgKDJtI (ORCPT ); Wed, 4 Nov 2020 04:49:08 -0500 Received: from mail-wm1-x341.google.com (mail-wm1-x341.google.com [IPv6:2a00:1450:4864:20::341]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15D6FC0613D3 for ; Wed, 4 Nov 2020 01:49:08 -0800 (PST) Received: by mail-wm1-x341.google.com with SMTP id h22so1726460wmb.0 for ; Wed, 04 Nov 2020 01:49:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=OqlgeG5PMY1fCKRWEP+B9ZVotNTjqilRPUFt0ZjjI48=; b=tmKeQ6ETWEcFaTRck95ZxpXO9OVXVhkugV9sd6x29ZURk45kf9AsfEjN8PqCKO9C2X sunxurPYifzS03ChRj1QzT8RSYWX3BAtk58KX7vu87THG+wFn1YWKUvXd56+mUE7ry71 yYg7TQSv1O3sCU/5doCmyaQxdUJryk7oZ/NYZF4reO5Td4Pkjlxtw2N+hSCktgpAyOR6 kHK2VbO2pDcZ0U2MlmgGxAR+Cc7923r0+Ztmh6Z/+GBsIIcS1To351rA81vdF5Zhh+lc Y5HWeAPimdLDI07Z2eE3anUoh5u+55RKyTU9E45bfcHUENklufogdwpli7SDT11g3WG8 4J6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=OqlgeG5PMY1fCKRWEP+B9ZVotNTjqilRPUFt0ZjjI48=; b=NYnRgVHJetzomm2KC27jPtnJ1d0jELEZCZmuCHLxleyHADwGs3RZS2zNB1UtYIwFJ3 2WPiGoOsQcB88YtL844PO6azLKLJoF9o6g8WWf10PHo+cd8vroWhMXk6IirHmUj0/YuY Kh0lwzCQTAD7Zs+RF7/23YJ/kfKPWr2uICotsCgQeEG42uO3O/fuapbloKW6X/55gZpx 2p0cAIcVuKYcNg8fn9rj/umrqLcyKJ1yihLvamwTs5rdhYg8ExdfApvCjOym3zjJ30IW y+vTAhbp8o7/NMb6OzvolHn8IxU1cNxeIZpzlXGrQZBSHzndBlCIwc0SO5oACNmRDoEH VIKA== X-Gm-Message-State: AOAM531Hw6xlBhVdrPaJXnEeUjXiNO9zoi9NqezADi6sYEDA4IkjVB3B /C8EBbYLM3fzBOHlZV3CHWjNeY1Kyz3q7Q== X-Google-Smtp-Source: ABdhPJwkIvfY7IdKi4vrAENvvJJyMyXe5oNkakVIPVAQcy1tIZGYF8950B46u5s0FVdwUP5oqv/XtQ== X-Received: by 2002:a1c:6405:: with SMTP id y5mr3642350wmb.150.1604483346747; Wed, 04 Nov 2020 01:49:06 -0800 (PST) Received: from localhost.localdomain (host109-152-100-228.range109-152.btcentralplus.com. [109.152.100.228]) by smtp.gmail.com with ESMTPSA id 3sm1478081wmd.19.2020.11.04.01.49.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Nov 2020 01:49:06 -0800 (PST) From: Pavel Begunkov To: Chris Mason , Josef Bacik , David Sterba , linux-btrfs@vger.kernel.org Subject: [PATCH 0/4] fixes for btrfs async discards Date: Wed, 4 Nov 2020 09:45:50 +0000 Message-Id: X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Several fixes for async discards. The first patch might increase discard rate, drastically in some cases. That may be a suprise for those assuming that hitting iops_limit is rare and rarther outliers. Though, it still stays in allowed range, so should be fine. Pavel Begunkov (4): btrfs: discard: speed up discard up to iops_limit btrfs: discard: save discard delay as ns not jiffy btrfs: don't miss discards after override-schedule btrfs: discard: reschedule work after param update fs/btrfs/ctree.h | 3 ++- fs/btrfs/discard.c | 35 +++++++++++++++++++++++------------ fs/btrfs/sysfs.c | 5 +++-- 3 files changed, 28 insertions(+), 15 deletions(-) -- 2.24.0