From patchwork Thu Feb 27 21:11:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Simmons X-Patchwork-Id: 11410061 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 54119138D for ; Thu, 27 Feb 2020 21:29:17 +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 3D0B2246A1 for ; Thu, 27 Feb 2020 21:29:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3D0B2246A1 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 0139E349402; Thu, 27 Feb 2020 13:25:17 -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 AA63F21FA7D for ; Thu, 27 Feb 2020 13:19:30 -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 1E4C22C60; Thu, 27 Feb 2020 16:18:16 -0500 (EST) Received: by star.ccs.ornl.gov (Postfix, from userid 2004) id 1D54846C; Thu, 27 Feb 2020 16:18:16 -0500 (EST) From: James Simmons To: Andreas Dilger , Oleg Drokin , NeilBrown Date: Thu, 27 Feb 2020 16:11:46 -0500 Message-Id: <1582838290-17243-239-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 238/622] lnet: libcfs: do not calculate debug_mb if it is set 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: Vladimir Saveliev , Lustre Development List MIME-Version: 1.0 Errors-To: lustre-devel-bounces@lists.lustre.org Sender: "lustre-devel" From: Vladimir Saveliev debug_mb is libcfs module parameter. It should be possible to set it via modprobe libcfs libcfs_debug_mb=800 or via adding options libcfs libcfs_debug_mb=800 to modules configuration. Fixes: 0871d551af ("staging/lustre/libcfs: move /proc/sys/lnet to debugfs") WC-bug-id: https://jira.whamcloud.com/browse/LU-11898 Lustre-commit: adeb29400a4a ("LU-11898 libcfs: do not calculate debug_mb if it is set") Signed-off-by: Vladimir Saveliev Cray-bug-id: LUS-6936 Reviewed-on: https://review.whamcloud.com/34128 Reviewed-by: Andreas Dilger Reviewed-by: Alexander Zarochentsev Signed-off-by: James Simmons --- net/lnet/libcfs/debug.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/lnet/libcfs/debug.c b/net/lnet/libcfs/debug.c index 88c4c36..c6b92df 100644 --- a/net/lnet/libcfs/debug.c +++ b/net/lnet/libcfs/debug.c @@ -553,7 +553,8 @@ int libcfs_debug_init(unsigned long bufsize) libcfs_register_panic_notifier(); kernel_param_lock(THIS_MODULE); - libcfs_debug_mb = cfs_trace_get_debug_mb(); + if (libcfs_debug_mb == 0) + libcfs_debug_mb = cfs_trace_get_debug_mb(); kernel_param_unlock(THIS_MODULE); return rc; }