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Shutemov" , Mike Kravetz , John Hubbard , Yang Shi , David Rientjes , James Houghton , Mike Rapoport , linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 08/12] mm/page_reporting: set page_reporting_order to -1 to prevent it running Date: Thu, 11 Aug 2022 19:16:39 -0400 Message-Id: <20220811231643.1012912-9-zi.yan@sent.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220811231643.1012912-1-zi.yan@sent.com> References: <20220811231643.1012912-1-zi.yan@sent.com> Reply-To: Zi Yan MIME-Version: 1.0 ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1660259813; a=rsa-sha256; cv=none; b=4t71/+aOre4b0HAIdOI2fBPQh+59pQ4dOBN9Ft5tXfi7IaeohzZSpZ7NBGWr4QGLE9u6RY UlBTD+TFFuu9rN47tU7ssF5cmkzM50quUlzp6L5+ApjBIEltPiFCOR6lnvpLibK1eVB594 VTAKPUKHbr8UXjlHQGTcUvqtaG97KO0= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=sent.com header.s=fm1 header.b="I xburOz"; dkim=pass header.d=messagingengine.com header.s=fm1 header.b=exTAiZiE; spf=pass (imf28.hostedemail.com: domain of zi.yan@sent.com designates 66.111.4.28 as permitted sender) smtp.mailfrom=zi.yan@sent.com; dmarc=pass (policy=none) header.from=sent.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1660259813; h=from:from:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=uhHjqO7fMake/4Yw6e31S9FQXGCwAM7iMxFEnUEtZO8=; b=kly1PIb/btx/T1ULleL0+aocMYs+knF1GRxiLIy2CD1Egip33PelHM7ohahOXP7XuYCjvN J2e2A1f4+dcpL/pz7555dCGm176dlRGPV633Imu4JfhQSAqymyvBXZ73Khapq5KvxaqqtI 6B6wdzC/iNZwhH3lysrbsQKsoADlB/w= X-Stat-Signature: wix6em6odjo5nhpt5ko1hccfwftpic8p X-Rspamd-Queue-Id: CC042C016F X-Rspam-User: X-Rspamd-Server: rspam03 Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=sent.com header.s=fm1 header.b="I xburOz"; dkim=pass header.d=messagingengine.com header.s=fm1 header.b=exTAiZiE; spf=pass (imf28.hostedemail.com: domain of zi.yan@sent.com designates 66.111.4.28 as permitted sender) smtp.mailfrom=zi.yan@sent.com; dmarc=pass (policy=none) header.from=sent.com X-HE-Tag: 1660259813-522277 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Zi Yan page_reporting_order was initialized to MAX_ORDER to prevent it running before its value is overwritten. Use -1 instead to remove the dependency on MAX_ORDER. Signed-off-by: Zi Yan Cc: David Hildenbrand Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- mm/page_reporting.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/mm/page_reporting.c b/mm/page_reporting.c index b48d6ad82998..001438f3dbeb 100644 --- a/mm/page_reporting.c +++ b/mm/page_reporting.c @@ -11,7 +11,11 @@ #include "page_reporting.h" #include "internal.h" -unsigned int page_reporting_order = MAX_PHYS_CONTIG_ORDER + 1; +/* + * Set page_reporting_order to (unsigned int)-1 to prevent it running until the + * value is being overwritten + */ +unsigned int page_reporting_order = (unsigned int)-1; module_param(page_reporting_order, uint, 0644); MODULE_PARM_DESC(page_reporting_order, "Set page reporting order");