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Wed, 29 Oct 2025 06:15:32 -0700 (PDT) Date: Wed, 29 Oct 2025 14:15:30 +0100 From: Petr Mladek To: Oleg Nesterov Cc: John Ogness , Sebastian Andrzej Siewior , linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] printk_legacy_map: use LD_WAIT_CONFIG instead of LD_WAIT_SLEEP Message-ID: References: <20251022154115.GA22400@redhat.com> <20251026150726.GA23223@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251026150726.GA23223@redhat.com> On Sun 2025-10-26 16:07:26, 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 Reviewed-by: Petr Mladek Best Regards, Petr