Re: [PATCH] docs: Fix blk-iolatency peer throttling description

From: Jonathan Corbet

Date: Wed Feb 11 2026 - 10:02:44 EST


Tang Yizhou <yizhou.tang@xxxxxxxxxx> writes:

> On Tue, Jan 20, 2026 at 9:37 PM Michal Koutný <mkoutny@xxxxxxxx> wrote:
>>
>> On Wed, Jan 14, 2026 at 07:08:37PM +0800, Tang Yizhou <yizhou.tang@xxxxxxxxxx> wrote:
>> > From: Tang Yizhou <yizhou.tang@xxxxxxxxxx>
>> >
>> > The current text states that peers with a lower latency target are
>> > throttled, which is the opposite of the actual behavior. In fact,
>> > blk-iolatency throttles peer groups with a higher latency target in order
>> > to protect the more latency-sensitive group.
>> >
>> > In addition, peer groups without a configured latency target are also
>> > throttled, as they are treated as lower priority compared to groups with
>> > explicit latency requirements.
>> >
>> > Update the documentation to reflect the correct throttling behavior.
>> >
>> > Signed-off-by: Tang Yizhou <yizhou.tang@xxxxxxxxxx>
>> > ---
>> > Documentation/admin-guide/cgroup-v2.rst | 10 ++++++----
>> > 1 file changed, 6 insertions(+), 4 deletions(-)
>>
>> Not a big deal but it could've been confusing.
>>
>>
>> Acked-by: Michal Koutný <mkoutny@xxxxxxxx>
>
> Hi Jon, just checking in, do you think this patch is ready to be merged?

Tejun usually takes cgroup-related docs changes directly, so I was
deferring on this one. If the preference is for it to go through the
docs tree I can certainly pick it up.

Thanks,

jon