From patchwork Tue Mar 29 13:26:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaohe Lin X-Patchwork-Id: 12794845 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26B12C433F5 for ; Tue, 29 Mar 2022 13:26:04 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7A4948D0007; Tue, 29 Mar 2022 09:25:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5F9AE8D000B; Tue, 29 Mar 2022 09:25:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 422738D0007; Tue, 29 Mar 2022 09:25:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.28]) by kanga.kvack.org (Postfix) with ESMTP id 2BC948D0009 for ; Tue, 29 Mar 2022 09:25:52 -0400 (EDT) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id EB89B6041F for ; Tue, 29 Mar 2022 13:25:51 +0000 (UTC) X-FDA: 79297496502.05.67AF83D Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf01.hostedemail.com (Postfix) with ESMTP id 4A9214002D for ; Tue, 29 Mar 2022 13:25:51 +0000 (UTC) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4KSVd25TYSzCr9R; Tue, 29 Mar 2022 21:23:34 +0800 (CST) Received: from huawei.com (10.175.124.27) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Tue, 29 Mar 2022 21:25:46 +0800 From: Miaohe Lin To: CC: , , Subject: [PATCH 7/8] mm/vmscan: take min_slab_pages into account when try to call shrink_node Date: Tue, 29 Mar 2022 21:26:18 +0800 Message-ID: <20220329132619.18689-8-linmiaohe@huawei.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20220329132619.18689-1-linmiaohe@huawei.com> References: <20220329132619.18689-1-linmiaohe@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: j8buzds7fkahc6dfku1xt7y8nohcbsxb Authentication-Results: imf01.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf01.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.188 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com X-Rspamd-Queue-Id: 4A9214002D X-HE-Tag: 1648560351-263248 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: Since commit 6b4f7799c6a5 ("mm: vmscan: invoke slab shrinkers from shrink_zone()"), slab reclaim and lru page reclaim are done together in the shrink_node. So we should take min_slab_pages into account when try to call shrink_node. Signed-off-by: Miaohe Lin --- mm/vmscan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 1145d23332a3..e4ef6f637aa9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4695,7 +4695,8 @@ static int __node_reclaim(struct pglist_data *pgdat, gfp_t gfp_mask, unsigned in noreclaim_flag = memalloc_noreclaim_save(); set_task_reclaim_state(p, &sc.reclaim_state); - if (node_pagecache_reclaimable(pgdat) > pgdat->min_unmapped_pages) { + if (node_pagecache_reclaimable(pgdat) > pgdat->min_unmapped_pages || + node_page_state_pages(pgdat, NR_SLAB_RECLAIMABLE_B) > pgdat->min_slab_pages) { /* * Free memory by calling shrink node with increasing * priorities until we have enough memory freed.