George Beshers 7c52198b9c x86/platform/uv: Insert per_cpu accessor function on uv_hub_nmi ... UV: NMI: insert this_cpu_read accessor function on uv_hub_nmi. On SGI UV systems a 'power nmi' command from the CMC causes all processors to drop into uv_handle_nmi(). With the 4.0 kernel this results in BUG: unable to handle kernel paging request The bug is caused by the current code trying to use the PER_CPU variable uv_cpu_nmi.hub without an appropriate accessor function. That oversight occurred in commit e16321709c ("uv: Replace __get_cpu_var") Author: Christoph Lameter <cl@linux.com> Date: Sun Aug 17 12:30:41 2014 -0500 This patch inserts this_cpu_read() in the uv_hub_nmi macro restoring the intended functionality. Signed-off-by: George Beshers <gbeshers@sgi.com> Acked-by: Mike Travis <travis@sgi.com> Cc: Alex Thorlton <athorlton@sgi.com> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Hedi Berriche <hedi@sgi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <rja@sgi.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-09-13 09:27:53 +02:00
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bios.h	Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-02-28 11:00:55 -08:00
uv_bau.h	x86: UV BAU: Increase maximum CPUs per socket/hub	2014-11-03 13:49:24 +01:00
uv_hub.h	x86/platform/uv: Insert per_cpu accessor function on uv_hub_nmi	2015-09-13 09:27:53 +02:00
uv_irq.h	x86, apic: Move SGI UV functionality out of generic IO-APIC code	2009-10-14 09:17:09 +02:00
uv_mmrs.h	x86/UV: Set n_lshift based on GAM_GR_CONFIG MMR for UV3	2014-04-01 12:10:44 +02:00
uv.h	x86/uv/nmi: Fix Sparse warnings	2014-01-25 08:55:10 +01:00