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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT 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 4E904C43441 for ; Mon, 12 Nov 2018 00:20:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11A332084C for ; Mon, 12 Nov 2018 00:20:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="T5nCK+v6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 11A332084C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org 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 S1729761AbeKLIQw (ORCPT ); Mon, 12 Nov 2018 03:16:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:58420 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729653AbeKLIQv (ORCPT ); Mon, 12 Nov 2018 03:16:51 -0500 Received: from localhost (unknown [206.108.79.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 53CBE21780; Sun, 11 Nov 2018 22:26:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1541975216; bh=i8JBnaJMfH+YgVwo2fWteAMB2oRa1ALZwbXxIuLxhe8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T5nCK+v6dd9YvCeW0XN+QvTMK8jHmpIuj2dXYozQ+/GfQWniA0087jbEvfFOKNoiG VpKyS1Q97xBJf5LwMp7EbEkvjELlg0IqK8w/s3AhNe/G3duEk3TAcZySZy5Y9BuD9e 41D+/cn59oeUTEQAGsWfFCY41JiKG5sIAWgYK+6Q= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tang Junhui , Coly Li , Jens Axboe Subject: [PATCH 4.19 012/361] bcache: trace missed reading by cache_missed Date: Sun, 11 Nov 2018 14:15:59 -0800 Message-Id: <20181111221621.621712332@linuxfoundation.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181111221619.915519183@linuxfoundation.org> References: <20181111221619.915519183@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tang Junhui commit 502b291568fc7faf1ebdb2c2590f12851db0ff76 upstream. Missed reading IOs are identified by s->cache_missed, not the s->cache_miss, so in trace_bcache_read() using trace_bcache_read to identify whether the IO is missed or not. Signed-off-by: Tang Junhui Cc: stable@vger.kernel.org Signed-off-by: Coly Li Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- drivers/md/bcache/request.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -850,7 +850,7 @@ static void cached_dev_read_done_bh(stru bch_mark_cache_accounting(s->iop.c, s->d, !s->cache_missed, s->iop.bypass); - trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass); + trace_bcache_read(s->orig_bio, !s->cache_missed, s->iop.bypass); if (s->iop.status) continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);