From patchwork Mon Jul 24 09:43:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13323925 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CCAE0C07E8D for ; Mon, 24 Jul 2023 09:54:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232646AbjGXJyR (ORCPT ); Mon, 24 Jul 2023 05:54:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232934AbjGXJx3 (ORCPT ); Mon, 24 Jul 2023 05:53:29 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16EE01BEB for ; Mon, 24 Jul 2023 02:49:34 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id d9443c01a7336-1b867f9198dso8898105ad.0 for ; Mon, 24 Jul 2023 02:49:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1690192134; x=1690796934; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hg2vi+2AAPCRuQsciRtLylYUMTgaXzyfBXLGSnv8etw=; b=aydgK7bn0QggjlQydoxB8/wzzA4TXTh5kAH1HczgG5x53kEUfwsZTHfAy7Oll8B5Eb /u8m2Fx+yVNF796ZZc3s2XmC1YIubtCHa+WaPaj49PGcqhNB+vofNP25+pjGYzLsUBey s8mU5+/TbPuzYxlgD12Kt4jsZqhjhd4Zmfvq3eYOMY75uxvK9h6vyhatsfe9xzUUvBHR 65A0XriwgvV356EN5StwdT8HNZN8xypzwNZbI9gp5ddxZgA9hT9j3WwIFAc65w94K4S5 JlPP5IHsQz3xceBVdVld1V5OEs83EDOwKVmAaZghdPj/BNMPCYQ+scOGPe5A3YPCuRcv ewxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690192134; x=1690796934; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hg2vi+2AAPCRuQsciRtLylYUMTgaXzyfBXLGSnv8etw=; b=DIweE4SyJEwp+XsrOVOLFSuTDLuXtRbW5/NOP8fgZdI/Ko6kV6RAKVYrocrLi48SgC CwdPrYmVYv79fnqyn/iuCYvahoZFPnRIOfW2G4d2HankgwQJK6uHyWR4jyfwA2LDFfvS D4QT6ZoniMJVSTUGLoylSXoUWmHQIWYrPDN+9m9ZQNi+j0q5QvrPqVHfW3rY9CMlbwgd cMOUxtMp+zCfYf3qTG74KDZDErhLVPkOJODzSryBUPEumPqTC/CQhaWPovLXIhHJaH/O ClSnhDOIJsPpdO14ZR/t5sC0xZeKhKA9kbvbl9JfquEvGtRvx51ae6qpppj/9uMQH+6F cgNA== X-Gm-Message-State: ABy/qLZhZpjD01OpDRbnIkHNrNDw3VAxTWaJWA7S0UJdoL93/glvf8na WXOrkmjkfXM3epbnihYnjvRjmw== X-Google-Smtp-Source: APBJJlFlbX7MjF6Gs1NiwvX/ojXDY5CFLHX7jflUqBVL6eloGiFWEtkN1YdVHiZpjmt9ZeBQxK8/kg== X-Received: by 2002:a17:902:ecd2:b0:1b8:b4f6:1327 with SMTP id a18-20020a170902ecd200b001b8b4f61327mr12294253plh.6.1690192134533; Mon, 24 Jul 2023 02:48:54 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id d5-20020a170902c18500b001bb20380bf2sm8467233pld.13.2023.07.24.02.48.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jul 2023 02:48:54 -0700 (PDT) From: Qi Zheng To: akpm@linux-foundation.org, david@fromorbit.com, tkhai@ya.ru, vbabka@suse.cz, roman.gushchin@linux.dev, djwong@kernel.org, brauner@kernel.org, paulmck@kernel.org, tytso@mit.edu, steven.price@arm.com, cel@kernel.org, senozhatsky@chromium.org, yujie.liu@intel.com, gregkh@linuxfoundation.org, muchun.song@linux.dev Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, kvm@vger.kernel.org, xen-devel@lists.xenproject.org, linux-erofs@lists.ozlabs.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-nfs@vger.kernel.org, linux-mtd@lists.infradead.org, rcu@vger.kernel.org, netdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, dm-devel@redhat.com, linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-btrfs@vger.kernel.org, Qi Zheng Subject: [PATCH v2 19/47] mm: thp: dynamically allocate the thp-related shrinkers Date: Mon, 24 Jul 2023 17:43:26 +0800 Message-Id: <20230724094354.90817-20-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230724094354.90817-1-zhengqi.arch@bytedance.com> References: <20230724094354.90817-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Use new APIs to dynamically allocate the thp-zero and thp-deferred_split shrinkers. Signed-off-by: Qi Zheng --- mm/huge_memory.c | 69 +++++++++++++++++++++++++++++++----------------- 1 file changed, 45 insertions(+), 24 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 8c94b34024a2..4db5a1834d81 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -65,7 +65,11 @@ unsigned long transparent_hugepage_flags __read_mostly = (1<count_objects = shrink_huge_zero_page_count; + huge_zero_page_shrinker->scan_objects = shrink_huge_zero_page_scan; + huge_zero_page_shrinker->seeks = DEFAULT_SEEKS; + shrinker_register(huge_zero_page_shrinker); + + deferred_split_shrinker->count_objects = deferred_split_count; + deferred_split_shrinker->scan_objects = deferred_split_scan; + deferred_split_shrinker->seeks = DEFAULT_SEEKS; + shrinker_register(deferred_split_shrinker); + + return 0; +} + +static void thp_shrinker_exit(void) +{ + shrinker_unregister(huge_zero_page_shrinker); + shrinker_unregister(deferred_split_shrinker); +} + static int __init hugepage_init(void) { int err; @@ -482,12 +516,9 @@ static int __init hugepage_init(void) if (err) goto err_slab; - err = register_shrinker(&huge_zero_page_shrinker, "thp-zero"); - if (err) - goto err_hzp_shrinker; - err = register_shrinker(&deferred_split_shrinker, "thp-deferred_split"); + err = thp_shrinker_init(); if (err) - goto err_split_shrinker; + goto err_shrinker; /* * By default disable transparent hugepages on smaller systems, @@ -505,10 +536,8 @@ static int __init hugepage_init(void) return 0; err_khugepaged: - unregister_shrinker(&deferred_split_shrinker); -err_split_shrinker: - unregister_shrinker(&huge_zero_page_shrinker); -err_hzp_shrinker: + thp_shrinker_exit(); +err_shrinker: khugepaged_destroy(); err_slab: hugepage_exit_sysfs(hugepage_kobj); @@ -2851,7 +2880,7 @@ void deferred_split_folio(struct folio *folio) #ifdef CONFIG_MEMCG if (memcg) set_shrinker_bit(memcg, folio_nid(folio), - deferred_split_shrinker.id); + deferred_split_shrinker->id); #endif } spin_unlock_irqrestore(&ds_queue->split_queue_lock, flags); @@ -2925,14 +2954,6 @@ static unsigned long deferred_split_scan(struct shrinker *shrink, return split; } -static struct shrinker deferred_split_shrinker = { - .count_objects = deferred_split_count, - .scan_objects = deferred_split_scan, - .seeks = DEFAULT_SEEKS, - .flags = SHRINKER_NUMA_AWARE | SHRINKER_MEMCG_AWARE | - SHRINKER_NONSLAB, -}; - #ifdef CONFIG_DEBUG_FS static void split_huge_pages_all(void) {