From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D00BFC43217 for ; Sat, 9 Oct 2021 09:39:16 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 82AC260F9C for ; Sat, 9 Oct 2021 09:39:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 82AC260F9C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 6081B6B0073; Sat, 9 Oct 2021 05:39:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 567B86B0075; Sat, 9 Oct 2021 05:39:13 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 32C8B900002; Sat, 9 Oct 2021 05:39:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0131.hostedemail.com [216.40.44.131]) by kanga.kvack.org (Postfix) with ESMTP id 1B13A6B0075 for ; Sat, 9 Oct 2021 05:39:13 -0400 (EDT) Received: from smtpin34.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id B79BC18023939 for ; Sat, 9 Oct 2021 09:39:12 +0000 (UTC) X-FDA: 78676400544.34.FFCF059 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf12.hostedemail.com (Postfix) with ESMTP id 0E5081002192 for ; Sat, 9 Oct 2021 09:39:11 +0000 (UTC) Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HRKds49zHzRgMb; Sat, 9 Oct 2021 17:34:41 +0800 (CST) Received: from dggpemm500005.china.huawei.com (7.185.36.74) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Sat, 9 Oct 2021 17:39:06 +0800 Received: from localhost.localdomain (10.69.192.56) by dggpemm500005.china.huawei.com (7.185.36.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Sat, 9 Oct 2021 17:39:06 +0800 From: Yunsheng Lin To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH net-next -v5 2/4] page_pool: change BIAS_MAX to support incrementing Date: Sat, 9 Oct 2021 17:37:22 +0800 Message-ID: <20211009093724.10539-3-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211009093724.10539-1-linyunsheng@huawei.com> References: <20211009093724.10539-1-linyunsheng@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500005.china.huawei.com (7.185.36.74) X-CFilter-Loop: Reflected X-Rspamd-Queue-Id: 0E5081002192 X-Stat-Signature: bnxhc5355hpw5h38hiab4gz4e8pecpji Authentication-Results: imf12.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=huawei.com; spf=pass (imf12.hostedemail.com: domain of linyunsheng@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=linyunsheng@huawei.com X-Rspamd-Server: rspam06 X-HE-Tag: 1633772351-577116 Content-Transfer-Encoding: quoted-printable 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: As the page->pp_frag_count need incrementing for pp page frag tracking support, so change BIAS_MAX to (LONG_MAX / 2) to avoid overflowing. Signed-off-by: Yunsheng Lin --- net/core/page_pool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/page_pool.c b/net/core/page_pool.c index 9b60e4301a44..2c643b72ce16 100644 --- a/net/core/page_pool.c +++ b/net/core/page_pool.c @@ -24,7 +24,7 @@ #define DEFER_TIME (msecs_to_jiffies(1000)) #define DEFER_WARN_INTERVAL (60 * HZ) =20 -#define BIAS_MAX LONG_MAX +#define BIAS_MAX (LONG_MAX / 2) =20 static int page_pool_init(struct page_pool *pool, const struct page_pool_params *params) --=20 2.33.0