From patchwork Tue Jun 18 03:17:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13701746 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A52401DFEB; Tue, 18 Jun 2024 03:18:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718680729; cv=none; b=eOXwJVqIQ3v4Jm7RZp9F1wiKoI0FOJmovhYAg/iLKXrZykp5ya6k4J3qqKNHStQAN7nHXdphkQJ1eXyaWleMqHl9RyW1bNTpBZWKJckDEoeAUSzy5QQ1lWYxxl8twUZAd004G/mke+EKIEaAzdT/Yu4/8XamGj+3Z9TFrN7yRmY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718680729; c=relaxed/simple; bh=pfvHTHzdUCIl+hRpW773wrPRnhPjCezpB1JoG51Z9Jk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=HfKZh+F37//ytSu2K09Gx0Q1LHtZQbyIMCoWm+rVabUbpKnM/yz8vr+2d3RdJUpNHee/3yrwY7yx9SFE8ZBEZYTcAkOCcu/L+fhy0+obKtkWeTUU8KsTcZ/Hssf16SSNHWJyh8oGmCTrxo4xoJBS1tFAghRPOwnch5v4MjWcW7Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4W3BmB4gfqz4f3jQX; Tue, 18 Jun 2024 11:18:34 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 6E9D31A0181; Tue, 18 Jun 2024 11:18:41 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgCXAQ+N_HBmFJj8AA--.12964S7; Tue, 18 Jun 2024 11:18:41 +0800 (CST) From: Yu Kuai To: axboe@kernel.dk, tj@kernel.org, gregkh@linuxfoundation.org, bvanassche@acm.org, hch@infradead.org, josef@toxicpanda.com, lizefan.x@bytedance.com, hannes@cmpxchg.org Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, yukuai3@huawei.com, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [PATCH RFC v2 3/7] block: export some API Date: Tue, 18 Jun 2024 11:17:47 +0800 Message-Id: <20240618031751.3470464-4-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240618031751.3470464-1-yukuai1@huaweicloud.com> References: <20240618031751.3470464-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: gCh0CgCXAQ+N_HBmFJj8AA--.12964S7 X-Coremail-Antispam: 1UD129KBjvJXoW7ur4xXF17Jr4rKF13tw4UXFb_yoW8ZF4Dpa 17KF43C3yjgFnrZa13W3WrX34ftrWkKF4fJ395ArWSkFsrur1fuFnYy3WkGrySyF93AFs3 AFyY9FyUArW8Ca7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPj14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JrWl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2kIc2 xKxwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v2 6r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2 Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_ Cr0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8Jw CI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfUojjgUUUU U X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai These APIs are used in iocost, prepare to build iocost as kernel module. Signed-off-by: Yu Kuai --- block/blk-cgroup.c | 4 ++++ block/blk-rq-qos.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 4da70fc7775e..787e3023a366 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -57,6 +57,7 @@ static struct blkcg_policy *blkcg_policy[BLKCG_MAX_POLS]; static LIST_HEAD(all_blkcgs); /* protected by blkcg_pol_mutex */ bool blkcg_debug_stats = false; +EXPORT_SYMBOL_GPL(blkcg_debug_stats); static DEFINE_RAW_SPINLOCK(blkg_stat_lock); @@ -688,6 +689,7 @@ const char *blkg_dev_name(struct blkcg_gq *blkg) return NULL; return bdi_dev_name(blkg->q->disk->bdi); } +EXPORT_SYMBOL_GPL(blkg_dev_name); /** * blkcg_print_blkgs - helper for printing per-blkg data @@ -815,6 +817,7 @@ int blkg_conf_open_bdev(struct blkg_conf_ctx *ctx) ctx->bdev = bdev; return 0; } +EXPORT_SYMBOL_GPL(blkg_conf_open_bdev); /** * blkg_conf_prep - parse and prepare for per-blkg config update @@ -2011,6 +2014,7 @@ void blkcg_schedule_throttle(struct gendisk *disk, bool use_memdelay) current->use_memdelay = use_memdelay; set_notify_resume(current); } +EXPORT_SYMBOL_GPL(blkcg_schedule_throttle); /** * blkcg_add_delay - add delay to this blkg diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c index dd7310c94713..c3fdf91ddf8d 100644 --- a/block/blk-rq-qos.c +++ b/block/blk-rq-qos.c @@ -332,6 +332,7 @@ int rq_qos_add(struct rq_qos *rqos, struct gendisk *disk, enum rq_qos_id id, blk_mq_unfreeze_queue(q); return -EBUSY; } +EXPORT_SYMBOL_GPL(rq_qos_add); void rq_qos_del(struct rq_qos *rqos) { @@ -353,3 +354,4 @@ void rq_qos_del(struct rq_qos *rqos) blk_mq_debugfs_unregister_rqos(rqos); mutex_unlock(&q->debugfs_mutex); } +EXPORT_SYMBOL_GPL(rq_qos_del);