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authorTakashi Iwai <tiwai@suse.de>2014-05-06 17:52:26 +0200
committerJiri Slaby <jslaby@suse.cz>2014-11-21 14:27:00 +0100
commit037e69291b28bb3c7ac303c8d743fca393a5532e (patch)
tree0ac0eb00310b841784da9c021bb8162fb17a08d8 /drivers
parentf96abf0060149fbc2093c2de7f4dae9fbff20694 (diff)
pvpanic: Set high notifier priority
commit 7939831eacd81fccbd7a956b30c7bb3abb9079db upstream. 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> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/platform/x86/pvpanic.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/platform/x86/pvpanic.c b/drivers/platform/x86/pvpanic.c
index 47ae0c47d4b5..469e182c5461 100644
--- a/drivers/platform/x86/pvpanic.c
+++ b/drivers/platform/x86/pvpanic.c
@@ -71,6 +71,7 @@ pvpanic_panic_notify(struct notifier_block *nb, unsigned long code,
static struct notifier_block pvpanic_panic_nb = {
.notifier_call = pvpanic_panic_notify,
+ .priority = 1, /* let this called before broken drm_fb_helper */
};