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 39043C433FE for ; Tue, 19 Oct 2021 07:36:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 13D1361355 for ; Tue, 19 Oct 2021 07:36:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229967AbhJSHjD (ORCPT ); Tue, 19 Oct 2021 03:39:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229930AbhJSHjC (ORCPT ); Tue, 19 Oct 2021 03:39:02 -0400 Received: from bombadil.infradead.org (unknown [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4014C06161C for ; Tue, 19 Oct 2021 00:36:50 -0700 (PDT) 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 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org 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(-)