linux-kernel - Re: [PATCH] sched_ext: idle: Fix return code of scx_select_cpu

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Message-ID: <Z-RewKQ9icwdw6iQ@slm.duckdns.org>
Date: Wed, 26 Mar 2025 10:08:32 -1000
From: Tejun Heo <tj@...nel.org>
To: Andrea Righi <arighi@...dia.com>
Cc: David Vernet <void@...ifault.com>, Changwoo Min <changwoo@...lia.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched_ext: idle: Fix return code of scx_select_cpu_dfl()

On Wed, Mar 26, 2025 at 08:18:49PM +0100, Andrea Righi wrote:
> Return -EBUSY when using %SCX_PICK_IDLE_CORE with scx_select_cpu_dfl()
> if a fully idle SMT core cannot be found, instead of falling back to
> @prev_cpu, which is not a fully idle SMT core in this case.
> 
> Fixes: c414c2171cd9e ("sched_ext: idle: Honor idle flags in the built-in idle selection policy")
> Signed-off-by: Andrea Righi <arighi@...dia.com>

Applied to sched_ext/for-6.15-fixes.

Thanks.

-- 
tejun