From patchwork Thu Feb 27 21:10:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 11409953 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6458814BC for ; Thu, 27 Feb 2020 21:26:30 +0000 (UTC) Received: from pdx1-mailman02.dreamhost.com (pdx1-mailman02.dreamhost.com [64.90.62.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4CDA2246A0 for ; Thu, 27 Feb 2020 21:26:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4CDA2246A0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lustre-devel-bounces@lists.lustre.org Received: from pdx1-mailman02.dreamhost.com (localhost [IPv6:::1]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id A7A9B349047; Thu, 27 Feb 2020 13:23:31 -0800 (PST) X-Original-To: lustre-devel@lists.lustre.org Delivered-To: lustre-devel-lustre.org@pdx1-mailman02.dreamhost.com Received: from smtp3.ccs.ornl.gov (smtp3.ccs.ornl.gov [160.91.203.39]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 0212D21FC27 for ; Thu, 27 Feb 2020 13:19:10 -0800 (PST) Received: from star.ccs.ornl.gov (star.ccs.ornl.gov [160.91.202.134]) by smtp3.ccs.ornl.gov (Postfix) with ESMTP id 4A6C62386; Thu, 27 Feb 2020 16:18:15 -0500 (EST) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id 496A346C; Thu, 27 Feb 2020 16:18:15 -0500 (EST) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Thu, 27 Feb 2020 16:10:39 -0500 Message-Id: <1582838290-17243-172-git-send-email-jsimmons@infradead.org> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1582838290-17243-1-git-send-email-jsimmons@infradead.org> References: <1582838290-17243-1-git-send-email-jsimmons@infradead.org> Subject: [lustre-devel] [PATCH 171/622] lustre: llite: handle -ENODATA in ll_layout_fetch() X-BeenThere: lustre-devel@lists.lustre.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "For discussing Lustre software development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lustre Development List MIME-Version: 1.0 Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" From: "John L. Hammond" In ll_layout_fetch() handle -ENODATA returns from mdc_getxattr(). This is needed for interop and restores the behavior from before commit 0f42b388432c (LU-11380 mdc: move empty xattr to mdc layer) landed. WC-bug-id: https://jira.whamcloud.com/browse/LU-11662 Lustre-commit: e3f367f3660d ("LU-11662 llite: handle -ENODATA in ll_layout_fetch()") Signed-off-by: John L. Hammond Reviewed-on: https://review.whamcloud.com/33665 Reviewed-by: Andreas Dilger Reviewed-by: Lai Siyao Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- fs/lustre/llite/file.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/lustre/llite/file.c b/fs/lustre/llite/file.c index 44337a2..25d7986 100644 --- a/fs/lustre/llite/file.c +++ b/fs/lustre/llite/file.c @@ -4433,8 +4433,13 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), OBD_MD_FLXATTR, XATTR_NAME_LOV, lmmsize, &req); - if (rc < 0) + if (rc < 0) { + if (rc == -ENODATA) { + rc = 0; + goto out; /* empty layout */ + } return rc; + } lmmsize = rc; rc = 0;