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Groups > linux.kernel > #1269711
| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3] PM / sleep: prohibit devices probing during suspend/hibernation |
| Date | 2015-11-15 16:50 +0100 |
| Message-ID | <qv7IZ-3fg-5@gated-at.bofh.it> (permalink) |
| References | <qtdIR-3jG-15@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue 2015-11-10 11:42:34, Grygorii Strashko wrote: > It is unsafe [1] if probing of devices will happen during suspend or > hibernation and system behavior will be unpredictable in this case. > So, let's prohibit device's probing in dpm_prepare() and defer their > probing instead. The normal behavior will be restored in > dpm_complete(). > > This patch introduces new DD core APIs: > device_block_probing() > It will disable probing of devices and defer their probes instead. > device_unblock_probing() > It will restore normal behavior and trigger re-probing of deferred > devices. > > [1] https://lkml.org/lkml/2015/9/11/554 > Cc: Alan Stern <stern@rowland.harvard.edu> > Cc: Rafael J. Wysocki <rjw@rjwysocki.net> > Cc: Thierry Reding <thierry.reding@gmail.com> > Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Pavel Machek <pavel@ucw.cz> -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v3] PM / sleep: prohibit devices probing during suspend/hibernation Grygorii Strashko <grygorii.strashko@ti.com> - 2015-11-10 10:50 +0100 Re: [PATCH v3] PM / sleep: prohibit devices probing during suspend/hibernation Pavel Machek <pavel@ucw.cz> - 2015-11-15 16:50 +0100
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