From patchwork Mon Aug 2 19:50:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 12414715 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 15B04C4338F for ; Mon, 2 Aug 2021 19:54:42 +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 C6E8960F36 for ; Mon, 2 Aug 2021 19:54:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C6E8960F36 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.lustre.org Received: from pdx1-mailman02.dreamhost.com (localhost [IPv6:::1]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id 2956A352FA6; Mon, 2 Aug 2021 12:54:29 -0700 (PDT) Received: from smtp4.ccs.ornl.gov (smtp4.ccs.ornl.gov [160.91.203.40]) by pdx1-mailman02.dreamhost.com (Postfix) with ESMTP id DF87C352C2A for ; Mon, 2 Aug 2021 12:51:01 -0700 (PDT) Received: from star.ccs.ornl.gov (star.ccs.ornl.gov [160.91.202.134]) by smtp4.ccs.ornl.gov (Postfix) with ESMTP id 94D9D100F35D; Mon, 2 Aug 2021 15:50:53 -0400 (EDT) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id 93992C2F53; Mon, 2 Aug 2021 15:50:53 -0400 (EDT) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Mon, 2 Aug 2021 15:50:46 -0400 Message-Id: <1627933851-7603-27-git-send-email-jsimmons@infradead.org> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1627933851-7603-1-git-send-email-jsimmons@infradead.org> References: <1627933851-7603-1-git-send-email-jsimmons@infradead.org> Subject: [lustre-devel] [PATCH 23/26] lustre: mdc: set default LMV on ROOT 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: Lai Siyao , Hongchao Zhang , Lustre Development List MIME-Version: 1.0 Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" From: Lai Siyao To balance MDT usage, set default LMV on ROOT if it's not set. The default stripe offset is "-1", and default stripe count is "1". Then directory created by "mkdir" under ROOT will be scattered on all MDTs by usage. WC-bug-id: https://jira.whamcloud.com/browse/LU-13417 Lustre-commit: 3e04b0fd6c3dd363 ("LU-13417 mdd: set default LMV on ROOT") Signed-off-by: Lai Siyao Signed-off-by: Andreas Dilger Signed-off-by: Hongchao Zhang Reviewed-on: https://review.whamcloud.com/38553 Signed-off-by: James Simmons --- fs/lustre/mdc/mdc_request.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/lustre/mdc/mdc_request.c b/fs/lustre/mdc/mdc_request.c index 1fb9c46..8b94f6c 100644 --- a/fs/lustre/mdc/mdc_request.c +++ b/fs/lustre/mdc/mdc_request.c @@ -557,6 +557,13 @@ static int mdc_get_lustre_md(struct obd_export *exp, struct req_capsule *pill, goto out; } + if (md_exp->exp_obd->obd_type->typ_lu == &mdc_device_type) { + CERROR("%s: no LMV, upgrading from old version?\n", + md_exp->exp_obd->obd_name); + rc = 0; + goto out_acl; + } + if (md->body->mbo_valid & OBD_MD_MEA) { lmv_size = md->body->mbo_eadatasize; if (!lmv_size) { @@ -618,6 +625,7 @@ static int mdc_get_lustre_md(struct obd_export *exp, struct req_capsule *pill, } rc = 0; +out_acl: /* for ACL, it's possible that FLACL is set but aclsize is zero. * only when aclsize != 0 there's an actual segment for ACL * in reply buffer.