Reviewed-by: Pavel Tatashin <[email protected]>
On 8/21/18 6:44 AM, David Hildenbrand wrote: > device_online() should be called with device_hotplug_lock() held. > > Cc: Benjamin Herrenschmidt <[email protected]> > Cc: Paul Mackerras <[email protected]> > Cc: Michael Ellerman <[email protected]> > Cc: Rashmica Gupta <[email protected]> > Cc: Balbir Singh <[email protected]> > Cc: Michael Neuling <[email protected]> > Signed-off-by: David Hildenbrand <[email protected]> > --- > arch/powerpc/platforms/powernv/memtrace.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/powerpc/platforms/powernv/memtrace.c > b/arch/powerpc/platforms/powernv/memtrace.c > index 8f1cd4f3bfd5..ef7181d4fe68 100644 > --- a/arch/powerpc/platforms/powernv/memtrace.c > +++ b/arch/powerpc/platforms/powernv/memtrace.c > @@ -229,9 +229,11 @@ static int memtrace_online(void) > * we need to online the memory ourselves. > */ > if (!memhp_auto_online) { > + lock_device_hotplug(); > walk_memory_range(PFN_DOWN(ent->start), > PFN_UP(ent->start + ent->size - 1), > NULL, online_mem_block); > + unlock_device_hotplug(); > } > > /* > _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
