Re: [PATCH v3] printk_legacy_map: use LD_WAIT_CONFIG instead of LD_WAIT_SLEEP
From: Sebastian Andrzej Siewior
Date: Mon Oct 27 2025 - 04:29:01 EST
On 2025-10-26 16:07:26 [+0100], Oleg Nesterov wrote:
> printk_legacy_map is used to hide lock nesting violations caused by
> legacy drivers and is using the wrong override type. LD_WAIT_SLEEP is
> for always sleeping lock types such as mutex_t. LD_WAIT_CONFIG is for
> lock type which are sleeping while spinning on PREEMPT_RT such as
> spinlock_t.
>
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Sebastian