From patchwork Tue Aug 15 01:41:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13353432 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 B0718C04E69 for ; Tue, 15 Aug 2023 01:45:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233943AbjHOBp1 (ORCPT ); Mon, 14 Aug 2023 21:45:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233956AbjHOBpE (ORCPT ); Mon, 14 Aug 2023 21:45:04 -0400 Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC455170B; Mon, 14 Aug 2023 18:45:03 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.30.67.143]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4RPvGN4lC6z4f3mWL; Tue, 15 Aug 2023 09:45:00 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgA3x6mb2NpkdnTyAg--.15945S4; Tue, 15 Aug 2023 09:45:00 +0800 (CST) From: Yu Kuai To: tj@kernel.org, josef@toxicpanda.com, axboe@kernel.dk, yukuai3@huawei.com, mkoutny@suse.com Cc: 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 0/4] cleanup and fixes for 'carryover_ios/bytes' Date: Tue, 15 Aug 2023 09:41:19 +0800 Message-Id: <20230815014123.368929-1-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-CM-TRANSID: gCh0CgA3x6mb2NpkdnTyAg--.15945S4 X-Coremail-Antispam: 1UD129KBjvdXoW7GFWrKry5ZFWfWw4kGF4xXrb_yoWfJwb_uF ykta48CF1UJa4IyFWxAry3A34rWw4jqw1qg3WqkFW7Zr9rZrn8Jr1fJF4qqFsxua1DCrs7 trs8Xr4xAr1aqjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbxAFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j 6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628v n2kIc2xKxwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F4 0E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFyl IxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxV AFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6rWUJVWrZr1UMIIF0xvEx4A2jsIE14v2 6r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0J UdHUDUUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Yu Kuai Patch 1 print signed value for 'carryover_ios/bytes' to user. Patch 2 fix that comparation ”unsigned value < negative value“ will pass, causing that io won't be throttled in the silce. Patch 3,4 fix that 'carryover_ios/bytes' is not cleared while 'io/bytes_disp' is cleared, causing that throttle is not accurate. Yu Kuai (4): blk-throttle: print signed value 'carryover_bytes/ios' for user blk-throttle: fix wrong comparation while 'carryover_ios/bytes' is negative blk-throttle: use calculate_io/bytes_allowed() for throtl_trim_slice() blk-throttle: consider 'carryover_ios/bytes' in throtl_trim_slice() block/blk-throttle.c | 105 +++++++++++++++++++++---------------------- block/blk-throttle.h | 4 +- 2 files changed, 54 insertions(+), 55 deletions(-)