Wei Liu 984f57e425 x86/hyperv: check cpu mask after interrupt has been disabled ... commit ad0a6bad44 upstream. We've observed crashes due to an empty cpu mask in hyperv_flush_tlb_others. Obviously the cpu mask in question is changed between the cpumask_empty call at the beginning of the function and when it is actually used later. One theory is that an interrupt comes in between and a code path ends up changing the mask. Move the check after interrupt has been disabled to see if it fixes the issue. Signed-off-by: Wei Liu <wei.liu@kernel.org> Cc: stable@kernel.org Link: https://lore.kernel.org/r/20210105175043.28325-1-wei.liu@kernel.org Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:26:12 +01:00
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Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
hv_apic.c	x86/hyperv: Make vapic support x2apic mode	2019-10-15 10:57:09 +02:00
hv_init.c	x86/Hyper-V: Report crash data in die() when panic_on_oops is set	2020-04-23 10:36:24 +02:00
hv_spinlock.c	x86/hyperv: Make hv_vcpu_is_preempted() visible	2019-04-19 17:58:57 +02:00
mmu.c	x86/hyperv: check cpu mask after interrupt has been disabled	2021-01-19 18:26:12 +01:00
nested.c	x86/hyper-v: Add HvFlushGuestAddressList hypercall support	2018-12-21 11:28:39 +01:00