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=-3.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 D3739C76188 for ; Mon, 22 Jul 2019 14:59:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A8C222190F for ; Mon, 22 Jul 2019 14:59:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rwjc3keF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726770AbfGVO7c (ORCPT ); Mon, 22 Jul 2019 10:59:32 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:44917 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725899AbfGVO7c (ORCPT ); Mon, 22 Jul 2019 10:59:32 -0400 Received: by mail-pf1-f194.google.com with SMTP id t16so17479987pfe.11; Mon, 22 Jul 2019 07:59:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=CSY0GIGjxOGwbMhm3bGvidcWT9sCWPIvO8wnBMqQ0JE=; b=rwjc3keFlsWaPBmJ8jLB4C3po38Ym8n1XBk8VgQd9HJCKrQLggoj2eeHBebKXJCEWw +5/fTyM/6UEYMfsibbR0twX2KHz5JoDBXYNvBeSolov9t9iTajKhkkNsIm1vQQwr8jcd tqa9IZgzyyRNZ6M3Kzkaub6HVd5EYu3HjDtENdnS8VDIrm51OL2Z+IYhmoHg+zpNIMPe DoW0O0OrTzQPuwICT2QSIkOb7VjHUHRzoTSGO7cP+F6dTkacuH41xWkkRUmOQJoiarjA PMBa1GzvEg9l9BIZjCcYtamQaNznWJHTophD77077rgCxWIiXvB2U/sKiBhN3SCfUxvF z/ag== 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; bh=CSY0GIGjxOGwbMhm3bGvidcWT9sCWPIvO8wnBMqQ0JE=; b=t+H5F1XWwGDanprDAgCKZi4W+55wOtVfTMEYPi/FBs4FGZvt1oa5L9rIaNIt79F/OT vPBL6QUI3a75JVXPno1ResBbEcaUi1lh8JHnVm14CsVkaxAT/Lx8n/OibopVX/pYcFD6 R6u44hdugmoQ/TrgssTKhJ8jgrKe7RHn6AIskll98A5dCxcWxVAZfu7X5OurxIOFGiRU oJR9GkxXg7b7vTko6vFL7Lh3Kr8i7gGJs7xwb21SvybWvD4cGttVpbsIYtmrXhjKybbu OcUYO7ZP9hFv8Dbh/ZUucq+TaWHxCiMFeTZCloI1pwC+q3jWZjNas58G9mbZDzfPlpp7 know== X-Gm-Message-State: APjAAAXyh4zr1kOo6JZau6u78KjIFyz2m6pT5vQZPJEQ+8PiBBBqdEt1 5mmbEI4/SKsgnIvqWMazF8uACxiE X-Google-Smtp-Source: APXvYqwdWhKl99dnVa7COvkAeKns+UC3ecDFUj5QGoWmZsb3trQe6iycfl33UfSdS3TCLbM2sMM3ow== X-Received: by 2002:a17:90a:d997:: with SMTP id d23mr74094110pjv.84.1563807571097; Mon, 22 Jul 2019 07:59:31 -0700 (PDT) Received: from mita-MS-7A45.lan (KD027092233113.ppp-bb.dion.ne.jp. [27.92.233.113]) by smtp.gmail.com with ESMTPSA id a16sm42533174pfd.68.2019.07.22.07.59.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 22 Jul 2019 07:59:30 -0700 (PDT) From: Akinobu Mita To: linux-block@vger.kernel.org, linux-leds@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org Cc: Akinobu Mita , Frank Steiner , Jacek Anaszewski , Pavel Machek , Dan Murphy , Jens Axboe , "James E.J. Bottomley" , "Martin K. Petersen" Subject: [PATCH v2 0/3] introduce LED block device activity trigger Date: Mon, 22 Jul 2019 23:59:09 +0900 Message-Id: <1563807552-23498-1-git-send-email-akinobu.mita@gmail.com> X-Mailer: git-send-email 2.7.4 Sender: linux-leds-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org This work is inspired by the report on linux-nvme mailing list. disk-activity trigger not working for nvme disk: http://lists.infradead.org/pipermail/linux-nvme/2019-July/025253.html This LED block device activity trigger works with any block devices. * v2 - Remove "move declaration of led_stop_software_blink() to linux/leds.h" patch - Move the trigger implementation to drivers/leds/trigger - s/blk_ledtrig/ledtrig_blk/ - Add CONFIG_LEDS_TRIGGER_BLOCK - Fix wrong bitops usages - Add interface to stop and restart polling disk stats - Stop polling disk stats for scsi disk during runtime suspend Akinobu Mita (3): block: introduce LED block device activity trigger ledtrig-blk: add interface to stop and restart polling disk stats scsi: sd: stop polling disk stats by ledtrig-blk during runtime suspend block/genhd.c | 2 + drivers/leds/trigger/Kconfig | 7 + drivers/leds/trigger/Makefile | 1 + drivers/leds/trigger/ledtrig-blk.c | 258 +++++++++++++++++++++++++++++++++++++ drivers/scsi/sd.c | 40 +++--- include/linux/genhd.h | 3 + include/linux/leds.h | 38 ++++++ 7 files changed, 332 insertions(+), 17 deletions(-) create mode 100644 drivers/leds/trigger/ledtrig-blk.c Cc: Frank Steiner Cc: Jacek Anaszewski Cc: Pavel Machek Cc: Dan Murphy Cc: Jens Axboe Cc: "James E.J. Bottomley" Cc: "Martin K. Petersen" -- 2.7.4