Re: [PATCH -next v2 0/6] blk-wbt: minor fix and cleanup

From: Yu Kuai
Date: Mon May 22 2023 - 08:14:37 EST


Hi,

在 2023/05/22 20:00, Linux regression tracking (Thorsten Leemhuis) 写道:
On 12.05.23 16:58, Jens Axboe wrote:
On 5/12/23 3:35 AM, Yu Kuai wrote:
From: Yu Kuai <yukuai3@xxxxxxxxxx>

Changes in v2:
- make the code more readable for patch 1
- add a new attr_group that is only visible for rq based device
- explain in detail for patch 4
- add review tag for patch 2,3,5

Yu Kuai (6):
blk-wbt: fix that wbt can't be disabled by default
blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled
blk-wbt: remove dead code to handle wbt enable/disable with io
inflight
blk-wbt: cleanup rwb_enabled() and wbt_disabled()
blk-iocost: move wbt_enable/disable_default() out of spinlock
blk-sysfs: add a new attr_group for blk_mq

block/blk-iocost.c | 7 +-
block/blk-sysfs.c | 181 ++++++++++++++++++++++++++-------------------
block/blk-wbt.c | 33 +++------
block/blk-wbt.h | 19 -----
4 files changed, 117 insertions(+), 123 deletions(-)

We need a 6.4 version of the fix to get rid of the regression. If you
want to do cleanups on top of that, then that's fine and that can go into
6.5. But don't mix them up.

Hmm, it seems nothing has happened here since ten days to fix this
regression that likely is still present in 6.3. Yu Kuai, did it fall
through the cracks, or is what Jens asked for more complicated than it
sounds?

Sorry for the delay, I was waiting for the last patch to be reviewed.
But the regression is only related to the first patch, I'll send it
seperately.

Thanks,
Kuai

Or was progress made and I just missed it?

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
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