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From: John Ogness <john.ogness@linutronix.de>
To: Jocelyn Falempe <jfalempe@redhat.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
	Javier Martinez Canillas <javierm@redhat.com>,
	"Guilherme G . Piccoli" <gpiccoli@igalia.com>,
	bluescreen_avenger@verizon.net, Petr Mladek <pmladek@suse.com>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 3/3] drm/log: Introduce a new boot logger to draw the kmsg on the screen
Date: Fri, 06 Sep 2024 10:53:25 +0206	[thread overview]
Message-ID: <87plphcgo2.fsf@jogness.linutronix.de> (raw)
In-Reply-To: <87seudchlu.fsf@jogness.linutronix.de>

On 2024-09-06, John Ogness <john.ogness@linutronix.de> wrote:
> Your device_lock()/device_unlock() callbacks probably just need to
> lock/unlock your mutex @drm_log_lock.

Sorry, forgot to mention that the device_lock() callback must also
disable migration. Since you are using a mutex, you will need to
manually do that as well...

mutex_lock(&drm_log_lock);
migrate_disable();

John

  reply	other threads:[~2024-09-06  8:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-01 10:04 [RFC PATCH 0/3] drm/log: Introduce a new boot logger to draw the kmsg on the screen Jocelyn Falempe
2024-08-01 10:04 ` [RFC PATCH 1/3] [NOT FOR REVIEW] drm/panic: Squash of pending series Jocelyn Falempe
2024-08-01 10:04 ` [RFC PATCH 2/3] drm/panic: Move drawing functions to drm_draw Jocelyn Falempe
2024-08-01 10:04 ` [RFC PATCH 3/3] drm/log: Introduce a new boot logger to draw the kmsg on the screen Jocelyn Falempe
2024-08-01 10:51   ` John Ogness
2024-08-01 13:52     ` Jocelyn Falempe
2024-08-01 14:28       ` John Ogness
2024-09-05 15:22         ` John Ogness
2024-09-06  7:53           ` Jocelyn Falempe
2024-09-06  8:27             ` John Ogness
2024-09-06  8:47               ` John Ogness [this message]
2024-09-06 16:29                 ` Jocelyn Falempe
2024-08-01 10:36 ` [RFC PATCH 0/3] " John Ogness

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