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pvpanic: Set high notifier priority

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We've observed the missing pvpanic call at panic, and it turned out
that this was blocked by the broken notifier of drm_fb_helper, where
scheduling may be called during switching to the fb console.
It's fairly difficult to fix the drm_fb problem and a quick fix isn't
foreseen, a simpler solution for the missing pvpanic call would be
just to call this earlier.

In order to assure that, this patch sets a higher priority to pvpanic
notifier_block.  Once when the issue of drm_fb is resolved, we can
remove this priority again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
This commit is contained in:
Takashi Iwai 2014-05-06 17:52:26 +02:00 committed by Matthew Garrett
parent 0ca849ea4f
commit 7939831eac
1 changed files with 1 additions and 0 deletions
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1
drivers/platform/x86/pvpanic.c
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@ -70,6 +70,7 @@ pvpanic_panic_notify(struct notifier_block *nb, unsigned long code,
static struct notifier_block pvpanic_panic_nb = { static struct notifier_block pvpanic_panic_nb = {
.notifier_call = pvpanic_panic_notify, .notifier_call = pvpanic_panic_notify,
.priority = 1, /* let this called before broken drm_fb_helper */
}; };