Re: [PATCH] cgroup/cpuset: Fix retval in update_cpumask()

From: Tejun Heo
Date: Thu Feb 29 2024 - 15:45:14 EST


On Thu, Feb 29, 2024 at 03:41:14PM +0530, Kamalesh Babulal wrote:
> The update_cpumask(), checks for newly requested cpumask by calling
> validate_change(), which returns an error on passing an invalid set
> of cpu(s). Independent of the error returned, update_cpumask() always
> returns zero, suppressing the error and returning success to the user
> on writing an invalid cpu range for a cpuset. Fix it by returning
> retval instead, which is returned by validate_change().
>
> Fixes: 99fe36ba6fc1 ("cgroup/cpuset: Improve temporary cpumasks handling")
> Signed-off-by: Kamalesh Babulal <kamalesh.babulal@xxxxxxxxxx>

Applied to cgroup/for-6.8-fixes.

Thanks.

--
tejun