From patchwork Thu Sep 16 16:00:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 513856 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 382E3C433F5 for ; Thu, 16 Sep 2021 16:55:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1CACB61360 for ; Thu, 16 Sep 2021 16:55:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244719AbhIPQ4e (ORCPT ); Thu, 16 Sep 2021 12:56:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:38630 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345945AbhIPQxC (ORCPT ); Thu, 16 Sep 2021 12:53:02 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DEF5C61359; Thu, 16 Sep 2021 16:29:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631809774; bh=MFdftYNN/m+PXJIIUju46stTCmNNOpmtuBDMxU2A9ls=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AUNV5Axm11FKImJQPyFI+/4ceXiz4+Y6cBzXowc95xUMd4grlL+sV71HcDfbHCG/6 Yc5vYQh2WZQ+UD4nnySXPH1ynunp6fYwHzdQ7Es+dmFsAizX2JcpOQUfrWzsVn0KkW fZskLvFXCp8f4q0qyZPMFRFF4rO7Ry0fQoGiglB4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Darrick J. Wong" , "Matthew Wilcox (Oracle)" , Sasha Levin Subject: [PATCH 5.13 277/380] iomap: pass writeback errors to the mapping Date: Thu, 16 Sep 2021 18:00:34 +0200 Message-Id: <20210916155813.498621405@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210916155803.966362085@linuxfoundation.org> References: <20210916155803.966362085@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Darrick J. Wong [ Upstream commit b69eea82d37d9ee7cfb3bf05103549dd4ed5ffc3 ] Modern-day mapping_set_error has the ability to squash the usual negative error code into something appropriate for long-term storage in a struct address_space -- ENOSPC becomes AS_ENOSPC, and everything else becomes EIO. iomap squashes /everything/ to EIO, just as XFS did before that, but this doesn't make sense. Fix this by making it so that we can pass ENOSPC to userspace when writeback fails due to space problems. Signed-off-by: Darrick J. Wong Reviewed-by: Matthew Wilcox (Oracle) Signed-off-by: Sasha Levin --- fs/iomap/buffered-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 9023717c5188..35839acd0004 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1045,7 +1045,7 @@ iomap_finish_page_writeback(struct inode *inode, struct page *page, if (error) { SetPageError(page); - mapping_set_error(inode->i_mapping, -EIO); + mapping_set_error(inode->i_mapping, error); } WARN_ON_ONCE(i_blocks_per_page(inode, page) > 1 && !iop);