From patchwork Fri May 12 09:35:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13238953 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 447B8C77B7C for ; Fri, 12 May 2023 09:39:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240514AbjELJjL (ORCPT ); Fri, 12 May 2023 05:39:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240496AbjELJi5 (ORCPT ); Fri, 12 May 2023 05:38:57 -0400 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31B9510E6E; Fri, 12 May 2023 02:38:43 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.30.67.143]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4QHkGl1Vpvz4f41GY; Fri, 12 May 2023 17:38:39 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP2 (Coremail) with SMTP id Syh0CgA33eoZCV5k66u5JA--.8346S10; Fri, 12 May 2023 17:38:40 +0800 (CST) From: Yu Kuai To: hch@lst.de, tj@kernel.org, josef@toxicpanda.com, axboe@kernel.dk, yukuai3@huawei.com Cc: lukas.bulwahn@gmail.com, cgroups@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [PATCH -next v2 6/6] blk-sysfs: add a new attr_group for blk_mq Date: Fri, 12 May 2023 17:35:54 +0800 Message-Id: <20230512093554.911753-7-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230512093554.911753-1-yukuai1@huaweicloud.com> References: <20230512093554.911753-1-yukuai1@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: Syh0CgA33eoZCV5k66u5JA--.8346S10 X-Coremail-Antispam: 1UD129KBjvJXoWxWw4ktFW7Xw47tF1ruFWrAFb_yoWrXFy5pF 4DCa48ZwsYvw42qayxJw4UXwnI9ry09r43Xr97KwnYyF12qw1fWFy0yryjqrWxArWkGw43 JF4DtrWDArZ7ZrJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUP214x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq 3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7 IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4U M4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2 kIc2xKxwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E 14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIx kGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAF wI0_Cr0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVW8JV WxJwCI42IY6I8E87Iv6xkF7I0E14v26r4UJVWxJrUvcSsGvfC2KfnxnUUI43ZEXa7VUbmZ X7UUUUU== X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Yu Kuai Currently wbt sysfs entry is created for bio based device, and wbt can be enabled for such device through sysfs while it doesn't make sense because wbt can only work for rq based device. In the meantime, there are other similar sysfs entries. Fix this by adding a new attr_group for blk_mq, and sysfs entries will only be created when the device is rq based. Suggested-by: Christoph Hellwig Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig --- block/blk-sysfs.c | 42 +++++++++++++++++++++++++++++++----------- 1 file changed, 31 insertions(+), 11 deletions(-) diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 6c1c4ba66bc0..afc797fb0dfc 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -621,7 +621,6 @@ QUEUE_RW_ENTRY(queue_wb_lat, "wbt_lat_usec"); #endif static struct attribute *queue_attrs[] = { - &queue_requests_entry.attr, &queue_ra_entry.attr, &queue_max_hw_sectors_entry.attr, &queue_max_sectors_entry.attr, @@ -629,7 +628,6 @@ static struct attribute *queue_attrs[] = { &queue_max_discard_segments_entry.attr, &queue_max_integrity_segments_entry.attr, &queue_max_segment_size_entry.attr, - &elv_iosched_entry.attr, &queue_hw_sector_size_entry.attr, &queue_logical_block_size_entry.attr, &queue_physical_block_size_entry.attr, @@ -650,7 +648,6 @@ static struct attribute *queue_attrs[] = { &queue_max_open_zones_entry.attr, &queue_max_active_zones_entry.attr, &queue_nomerges_entry.attr, - &queue_rq_affinity_entry.attr, &queue_iostats_entry.attr, &queue_stable_writes_entry.attr, &queue_random_entry.attr, @@ -658,11 +655,7 @@ static struct attribute *queue_attrs[] = { &queue_wc_entry.attr, &queue_fua_entry.attr, &queue_dax_entry.attr, -#ifdef CONFIG_BLK_WBT - &queue_wb_lat_entry.attr, -#endif &queue_poll_delay_entry.attr, - &queue_io_timeout_entry.attr, #ifdef CONFIG_BLK_DEV_THROTTLING_LOW &blk_throtl_sample_time_entry.attr, #endif @@ -671,16 +664,23 @@ static struct attribute *queue_attrs[] = { NULL, }; +static struct attribute *blk_mq_queue_attrs[] = { + &queue_requests_entry.attr, + &elv_iosched_entry.attr, + &queue_rq_affinity_entry.attr, + &queue_io_timeout_entry.attr, +#ifdef CONFIG_BLK_WBT + &queue_wb_lat_entry.attr, +#endif + NULL, +}; + static umode_t queue_attr_visible(struct kobject *kobj, struct attribute *attr, int n) { struct gendisk *disk = container_of(kobj, struct gendisk, queue_kobj); struct request_queue *q = disk->queue; - if (attr == &queue_io_timeout_entry.attr && - (!q->mq_ops || !q->mq_ops->timeout)) - return 0; - if ((attr == &queue_max_open_zones_entry.attr || attr == &queue_max_active_zones_entry.attr) && !blk_queue_is_zoned(q)) @@ -689,11 +689,30 @@ static umode_t queue_attr_visible(struct kobject *kobj, struct attribute *attr, return attr->mode; } +static umode_t blk_mq_queue_attr_visible(struct kobject *kobj, + struct attribute *attr, int n) +{ + struct gendisk *disk = container_of(kobj, struct gendisk, queue_kobj); + struct request_queue *q = disk->queue; + + if (!queue_is_mq(q)) + return 0; + + if (attr == &queue_io_timeout_entry.attr && !q->mq_ops->timeout) + return 0; + + return attr->mode; +} + static struct attribute_group queue_attr_group = { .attrs = queue_attrs, .is_visible = queue_attr_visible, }; +static struct attribute_group blk_mq_queue_attr_group = { + .attrs = blk_mq_queue_attrs, + .is_visible = blk_mq_queue_attr_visible, +}; #define to_queue(atr) container_of((atr), struct queue_sysfs_entry, attr) @@ -738,6 +757,7 @@ static const struct sysfs_ops queue_sysfs_ops = { static const struct attribute_group *blk_queue_attr_groups[] = { &queue_attr_group, + &blk_mq_queue_attr_group, NULL };