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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 673F5C636D4 for ; Sat, 4 Feb 2023 01:53:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232956AbjBDBxN (ORCPT ); Fri, 3 Feb 2023 20:53:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59612 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233255AbjBDBxH (ORCPT ); Fri, 3 Feb 2023 20:53:07 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 862C7A267 for ; Fri, 3 Feb 2023 17:53:05 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 28068B82C66 for ; Sat, 4 Feb 2023 01:53:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C580EC433EF; Sat, 4 Feb 2023 01:53:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1675475582; bh=xXD9UcnOfEiGYAXVFekDHWYoo+FmBkp4q5O/oe0MmTI=; h=Date:To:From:Subject:From; b=NhmxeiFBsZ7dHpCETR38d5Ke25Xs1K+fVZ4U2Gh7Blc/Rbq5X8JVvr37G+wDMYcZp fSquHLyUIMJbJnvZ8Op2hw3VClrZ70OObqm+X9NB6T30yU/X+LaizQRxNjQneaU9kH wF8i5u8Q95C3J8Es5JzlHNkSpbzXlJ05sHNNr10g= Date: Fri, 03 Feb 2023 17:53:01 -0800 To: mm-commits@vger.kernel.org, willy@infradead.org, jhubbard@nvidia.com, jgg@nvidia.com, djwong@kernel.org, david@fromorbit.com, dan.j.williams@intel.com, apopple@nvidia.com, ruansy.fnst@fujitsu.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-hotfixes-stable] fsdax-dax_unshare_iter-should-return-a-valid-length.patch removed from -mm tree Message-Id: <20230204015302.C580EC433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: fsdax: dax_unshare_iter() should return a valid length has been removed from the -mm tree. Its filename was fsdax-dax_unshare_iter-should-return-a-valid-length.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Shiyang Ruan Subject: fsdax: dax_unshare_iter() should return a valid length Date: Thu, 2 Feb 2023 12:33:47 +0000 The copy_mc_to_kernel() will return 0 if it executed successfully. Then the return value should be set to the length it copied. [akpm@linux-foundation.org: don't mess up `ret', per Matthew] Link: https://lkml.kernel.org/r/1675341227-14-1-git-send-email-ruansy.fnst@fujitsu.com Fixes: d984648e428b ("fsdax,xfs: port unshare to fsdax") Signed-off-by: Shiyang Ruan Cc: Darrick J. Wong Cc: Alistair Popple Cc: Dan Williams Cc: Dave Chinner Cc: Jason Gunthorpe Cc: John Hubbard Cc: Matthew Wilcox Signed-off-by: Andrew Morton --- --- a/fs/dax.c~fsdax-dax_unshare_iter-should-return-a-valid-length +++ a/fs/dax.c @@ -1271,8 +1271,9 @@ static s64 dax_unshare_iter(struct iomap if (ret < 0) goto out_unlock; - ret = copy_mc_to_kernel(daddr, saddr, length); - if (ret) + if (copy_mc_to_kernel(daddr, saddr, length) == 0) + ret = length; + else ret = -EIO; out_unlock: _ Patches currently in -mm which might be from ruansy.fnst@fujitsu.com are