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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0DB47C433FE for ; Tue, 19 Oct 2021 07:36:58 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9750361355 for ; Tue, 19 Oct 2021 07:36:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9750361355 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 31776900002; Tue, 19 Oct 2021 03:36:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2C6E06B0071; Tue, 19 Oct 2021 03:36:57 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 203D7900002; Tue, 19 Oct 2021 03:36:57 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0145.hostedemail.com [216.40.44.145]) by kanga.kvack.org (Postfix) with ESMTP id 147996B006C for ; Tue, 19 Oct 2021 03:36:57 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id C90EA2C695 for ; Tue, 19 Oct 2021 07:36:56 +0000 (UTC) X-FDA: 78712380432.22.292BC80 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf17.hostedemail.com (Postfix) with ESMTP id E512EF000394 for ; Tue, 19 Oct 2021 07:36:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:In-Reply-To:References; bh=tggAfzLakoiLo+c6QdPmG/HwrQInFVNf4bngospVsnQ=; b=Dju723BnHucsP8eMAncoDbijpC Df1SeTL8pKfm5y+RlERZPwuBoylwK45Ewjf895e1ewk7gyrZmRg3yMA4paaHYLJvzTs2ibUbinmsl SzTVAHwjOzjOfDvEO+SEkfPQ+hT8EflFLKx4kPJW08YAtP+2CcLskzYeBP168sNnhI2ueIoTVCDTZ KwjNc9ykhzKdMqs2ueaGlv8HebAoGulYJBBNUZhaMMysGVHXV+BRFXV1e2rfUwTywb8diVaObqTLd foLYWZnZTLeDIjhCYq5wt7h2/vBHfQ801QtOTgwwClgtYH5CansiLqPIGuXXkttYmInCHESzIGRTE X52/d2GA==; Received: from 089144192247.atnat0001.highway.a1.net ([89.144.192.247] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mcjfx-000QVy-Ta; Tue, 19 Oct 2021 07:36:46 +0000 From: Christoph Hellwig To: Dan Williams Cc: Vishal Verma , Dave Jiang , Ira Weiny , Jens Axboe , Yi Zhang , linux-block@vger.kernel.org, nvdimm@lists.linux.dev, linux-mm@kvack.org Subject: fix a pmem regression due to drain the block queue in del_gendisk Date: Tue, 19 Oct 2021 09:36:39 +0200 Message-Id: <20211019073641.2323410-1-hch@lst.de> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: E512EF000394 X-Stat-Signature: 5tex45wfqfe1ubp1bkcfq3m5gtmdjqer Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=Dju723Bn; dmarc=none; spf=none (imf17.hostedemail.com: domain of BATV+3b2d0d247c9f97582818+6631+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+3b2d0d247c9f97582818+6631+infradead.org+hch@bombadil.srs.infradead.org X-HE-Tag: 1634629015-41891 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Dan, this series fixes my recently introduced regression in the pmem driver by removing the usage of q_usage_count as the external pgmap refcount in the pmem driver and then removes the now unused external refcount infrastructure. Diffstat: drivers/nvdimm/pmem.c | 33 +-------------------- include/linux/memremap.h | 18 +---------- mm/memremap.c | 59 +++++++------------------------= ------- tools/testing/nvdimm/test/iomap.c | 43 +++++++-------------------- 4 files changed, 29 insertions(+), 124 deletions(-)