From patchwork Thu Feb 27 21:14:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 11410387 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 F357717E0 for ; Thu, 27 Feb 2020 21:36:57 +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 DC286246A1 for ; Thu, 27 Feb 2020 21:36:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC286246A1 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 0FD4134A190; Thu, 27 Feb 2020 13:30:33 -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 4E9E121FE5C for ; Thu, 27 Feb 2020 13:20:28 -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 3676C8F19; Thu, 27 Feb 2020 16:18:18 -0500 (EST) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id 355BF46C; Thu, 27 Feb 2020 16:18:18 -0500 (EST) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Thu, 27 Feb 2020 16:14:46 -0500 Message-Id: <1582838290-17243-419-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 418/622] lnet: Detach rspt when md_threshold is infinite 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: Chris Horn MDs for pings use the infinite threshold on MD operations. As such they aren't normally unlinkable as determined by lnet_md_unlinkable(). We can cover this case by checking whether the refcount is zero and threshold is LNET_MD_THRESH_INF. Cray-bug-id: LUS-7366 WC-bug-id: https://jira.whamcloud.com/browse/LU-12441 Lustre-commit: ebbf909a1c2d ("LU-12441 lnet: Detach rspt when md_threshold is infinite") Signed-off-by: Chris Horn Reviewed-on: https://review.whamcloud.com/35452 Reviewed-by: Alexandr Boyko Reviewed-by: Amir Shehata Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- net/lnet/lnet/lib-msg.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/lnet/lnet/lib-msg.c b/net/lnet/lnet/lib-msg.c index b70a6c9..805d5b9 100644 --- a/net/lnet/lnet/lib-msg.c +++ b/net/lnet/lnet/lib-msg.c @@ -825,10 +825,12 @@ lnet_eq_enqueue_event(md->md_eq, &msg->msg_ev); } - if (unlink) { + if (unlink || (md->md_refcount == 0 && + md->md_threshold == LNET_MD_THRESH_INF)) lnet_detach_rsp_tracker(md, cpt); + + if (unlink) lnet_md_unlink(md); - } msg->msg_md = NULL; }