Re: [PATCH v2] cgroup/dmem: accept only one region per limit write

[Natalie Vock <natalie.vock@gmx.de>]

On 6/8/26 17:53, Eric Chanudet wrote:
> Accept only one "region value" pair entry for the dmem.max, dmem.min,
> dmem.low files.
> 
> This changes the UAPI that otherwise accepted multiple lines for setting
> multiple entries in one write. No existing user is known to rely on
> writing multiple regions in a single write.
> 
> Processing multiple regions in dmemcg_limit_write() could quietly change
> first limits before failing on a later one and returning an error to the
> writer, with no indication some changes occurred.
> 
> Acked-by: Tejun Heo <tj@kernel.org>
> Signed-off-by: Eric Chanudet <echanude@redhat.com>

Reviewed-by: Natalie Vock <natalie.vock@gmx.de>

Thanks,
Natalie