From nobody Thu Sep 11 22:29:02 2025 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 67E53CA0EC1 for ; Mon, 11 Sep 2023 21:29:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345579AbjIKVVX (ORCPT ); Mon, 11 Sep 2023 17:21:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235894AbjIKJpr (ORCPT ); Mon, 11 Sep 2023 05:45:47 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC236E44 for ; Mon, 11 Sep 2023 02:45:43 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id d9443c01a7336-1c3c4eafe95so463725ad.1 for ; Mon, 11 Sep 2023 02:45:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1694425543; x=1695030343; darn=vger.kernel.org; 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=hCA0ApwXV5FyQtvOpmWRZ9XMHHHCgvXZoPv/VlrFSS0=; b=X2ePcyN+G+kLoAouw5X4BO7Y6T3fJTHGNZj7DHTfUPzX8VOJGVyrENt5EpB+4VF84q mjBczNHsKoSJYYkyQc+Lg6mufcIDP8DRkCWVZPCmwcGMf0gpF1SNHesSlb3t5IU/qeNp bnlyhzcL7c0AQM6LDPjbXQoLh0dEiSpI6rF1s/pY7KINGu927QQHdiDSlTQoZgcvX3+v KPAuXC0vxaSmz6IkM5LDC4Ho2CflJTyHTpqaD9YdMg49t8y2yRPZiXHmIrz2OllK04LD flAX4FYe18y+jaicHPmXiIJb7s0CJijJ8hoal/vaCiSJo3wGfP4eG817hsUpNjOxnSsv e/BA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694425543; x=1695030343; 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=hCA0ApwXV5FyQtvOpmWRZ9XMHHHCgvXZoPv/VlrFSS0=; b=gr1a3SLaZi2cVexVTZ6zEVXcNlyRDaIFlWBqoqIkOfpVxMQ701t4Dlol1yaHw46gZx HT1JMRfmn9PsJO9T5TYTbL0iE4+ggwdgLmuUXPE3EiQaQ41eEXu9AYaEAFJZ/EgKSaOh KVNN+vhxBlh5n7b14k9JMXlv3FGxjeX1XTMKlrbJKA9mj//moObrU3vOZ3PyPoVLSjZT 4OS5n/r9hY/lJKM3kUhsom/9QoC3gWhv0aRhkz0gOEehtgInmMInxeuEC/sVnBGdOksk dfjxJYpHeeSEkKFQJlW+nmNaOorcBvz+AA23bdwCVfpC+HALoeEmAQUf1/rsBrfSscpe MXLw== X-Gm-Message-State: AOJu0Yzev/ou1vhIbQgFc9nz61EmJSw9UsuJo+XZrz5HmopWHfBrlAF3 msBbGD3KrNaqKPzDFDc2j8LDuw== X-Google-Smtp-Source: AGHT+IHdDCNX66HmyeFeumyllN+fvmvJwteuvjAREsMUnnfysYcrCUJrxwo3wRPJ4iCHNwAnAJyjKg== X-Received: by 2002:a17:902:ecd2:b0:1bb:ac37:384b with SMTP id a18-20020a170902ecd200b001bbac37384bmr11076107plh.6.1694425543157; Mon, 11 Sep 2023 02:45:43 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id az7-20020a170902a58700b001bdc2fdcf7esm5988188plb.129.2023.09.11.02.45.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Sep 2023 02:45:42 -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, linux-fsdevel@vger.kernel.org, Qi Zheng , Muchun Song , Daniel Vetter , Christian Koenig , Huang Rui , David Airlie , dri-devel@lists.freedesktop.org Subject: [PATCH v6 04/45] drm/ttm: dynamically allocate the drm-ttm_pool shrinker Date: Mon, 11 Sep 2023 17:44:03 +0800 Message-Id: <20230911094444.68966-5-zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230911094444.68966-1-zhengqi.arch@bytedance.com> References: <20230911094444.68966-1-zhengqi.arch@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Use new APIs to dynamically allocate the drm-ttm_pool shrinker. Signed-off-by: Qi Zheng Reviewed-by: Muchun Song Acked-by: Daniel Vetter CC: Christian Koenig CC: Huang Rui CC: David Airlie CC: dri-devel@lists.freedesktop.org --- drivers/gpu/drm/ttm/ttm_pool.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c index 648ca70403a7..fe610a3cace0 100644 --- a/drivers/gpu/drm/ttm/ttm_pool.c +++ b/drivers/gpu/drm/ttm/ttm_pool.c @@ -73,7 +73,7 @@ static struct ttm_pool_type global_dma32_uncached[MAX_ORD= ER + 1]; =20 static spinlock_t shrinker_lock; static struct list_head shrinker_list; -static struct shrinker mm_shrinker; +static struct shrinker *mm_shrinker; static DECLARE_RWSEM(pool_shrink_rwsem); =20 /* Allocate pages of size 1 << order with the given gfp_flags */ @@ -749,8 +749,8 @@ static int ttm_pool_debugfs_shrink_show(struct seq_file= *m, void *data) struct shrink_control sc =3D { .gfp_mask =3D GFP_NOFS }; =20 fs_reclaim_acquire(GFP_KERNEL); - seq_printf(m, "%lu/%lu\n", ttm_pool_shrinker_count(&mm_shrinker, &sc), - ttm_pool_shrinker_scan(&mm_shrinker, &sc)); + seq_printf(m, "%lu/%lu\n", ttm_pool_shrinker_count(mm_shrinker, &sc), + ttm_pool_shrinker_scan(mm_shrinker, &sc)); fs_reclaim_release(GFP_KERNEL); =20 return 0; @@ -794,10 +794,17 @@ int ttm_pool_mgr_init(unsigned long num_pages) &ttm_pool_debugfs_shrink_fops); #endif =20 - mm_shrinker.count_objects =3D ttm_pool_shrinker_count; - mm_shrinker.scan_objects =3D ttm_pool_shrinker_scan; - mm_shrinker.seeks =3D 1; - return register_shrinker(&mm_shrinker, "drm-ttm_pool"); + mm_shrinker =3D shrinker_alloc(0, "drm-ttm_pool"); + if (!mm_shrinker) + return -ENOMEM; + + mm_shrinker->count_objects =3D ttm_pool_shrinker_count; + mm_shrinker->scan_objects =3D ttm_pool_shrinker_scan; + mm_shrinker->seeks =3D 1; + + shrinker_register(mm_shrinker); + + return 0; } =20 /** @@ -817,6 +824,6 @@ void ttm_pool_mgr_fini(void) ttm_pool_type_fini(&global_dma32_uncached[i]); } =20 - unregister_shrinker(&mm_shrinker); + shrinker_free(mm_shrinker); WARN_ON(!list_empty(&shrinker_list)); } --=20 2.30.2