linux-kernel - [PATCH v2 0/3] block/blk-throttle: Fix throttle slice time for SSDs

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Message-ID: <20251114235434.2168072-1-khazhy@google.com>
Date: Fri, 14 Nov 2025 15:54:31 -0800
From: Khazhismel Kumykov <khazhy@...omium.org>
To: Tejun Heo <tj@...nel.org>,
	Josef Bacik <josef@...icpanda.com>,
	Jens Axboe <axboe@...nel.dk>
Cc: cgroups@...r.kernel.org,
	linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Khazhismel Kumykov <khazhy@...gle.com>
Subject: [PATCH v2 0/3] block/blk-throttle: Fix throttle slice time for SSDs

Since commit bf20ab538c81 ("blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOW"),
the throttle slice time differs between SSD and non-SSD devices. This
causes test failures with slow throttle speeds on SSD devices.

The first patch in the series fixes the problem by restoring the throttle
slice time to a fixed value, matching behavior seen prior to above
mentioned revert. The remaining patches clean up unneeeded code after removing
CONFIG_BLK_DEV_THROTTLING_LOW.

Guenter Roeck (3):
  block/blk-throttle: Fix throttle slice time for SSDs
  block/blk-throttle: drop unneeded blk_stat_enable_accounting
  block/blk-throttle: Remove throtl_slice from struct throtl_data

 block/blk-throttle.c | 45 ++++++++++++++------------------------------
 1 file changed, 14 insertions(+), 31 deletions(-)

-- 

v2: block accounting fix into separate patch

2.52.0.rc1.455.g30608eb744-goog