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Shutemov" , Mike Kravetz , John Hubbard , Yang Shi , David Rientjes , James Houghton , Mike Rapoport , Muchun Song , Andrew Morton , linux-kernel@vger.kernel.org Subject: [PATCH v1 07/12] mm/page_reporting: set page_reporting_order to -1 to prevent it running Date: Wed, 21 Sep 2022 21:12:47 -0400 Message-Id: <20220922011252.2266780-8-zi.yan@sent.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220922011252.2266780-1-zi.yan@sent.com> References: <20220922011252.2266780-1-zi.yan@sent.com> Reply-To: Zi Yan MIME-Version: 1.0 ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1663809181; a=rsa-sha256; cv=none; b=3GG53zKQFfN7VieQ3kH67CxOM7RUZ+PJJfu4bZgDXaPyVUelkWDGV8RIar1PwgsGGv1dJR IWPPnK/WLh6dWfnPZSavuH9xkr7+R53F6iTBwGs21BozsJUgFi8l1oDNZVhPOsDMerM6nh P60OGvAKaoEFYIeR3N+cT5zMQ8HI0+E= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=sent.com header.s=fm2 header.b="F zzo+GA"; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=pTT+0lmO; dmarc=pass (policy=none) header.from=sent.com; spf=pass (imf20.hostedemail.com: domain of zi.yan@sent.com designates 66.111.4.26 as permitted sender) smtp.mailfrom=zi.yan@sent.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1663809181; 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=4qf8gwW64yaS/ijpFJ5QAbyea/2OTfhuki+JGD62W78=; b=fx2IXsHpuO6CYxrbUh+AmT/gRcsp9YbUqVtW/iph2B4+LPBw5gnLXH+uhijBBDWtYFHvM+ 4KCtQEc8/NaEHjQZlG1wUhbZXZ0ROSPQmZwSbZrzI9+Fk7yZ0FZqnNiiAlEyzCaosw540U ZzqQaTnGCRua4jdtGase59vxDOK0iRc= X-Stat-Signature: iu79ys3hyf1sekfafsyj9up3fwpgkxgo X-Rspamd-Queue-Id: 35CB61C001F Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=sent.com header.s=fm2 header.b="F zzo+GA"; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=pTT+0lmO; dmarc=pass (policy=none) header.from=sent.com; spf=pass (imf20.hostedemail.com: domain of zi.yan@sent.com designates 66.111.4.26 as permitted sender) smtp.mailfrom=zi.yan@sent.com X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1663809181-966810 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 d52a55bca6d5..e3d6f4af34e0 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_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");