mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 16:15:11 +00:00
Code Issues Releases Wiki Activity

powerpc/64: hard disable irqs in panic_smp_self_stop

Browse source 
Similarly to commit 855bfe0de1 ("powerpc: hard disable irqs in
smp_send_stop loop"), irqs should be hard disabled by
panic_smp_self_stop.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2018-05-19 14:35:52 +10:00 committed by Michael Ellerman
parent 749a0278c2
commit 8c1aef6a68
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
arch/powerpc/kernel/setup_64.c
View file

@ -387,6 +387,14 @@ void early_setup_secondary(void)
#endif /* CONFIG_SMP */
void panic_smp_self_stop(void)
{
hard_irq_disable();
spin_begin();
while (1)
spin_cpu_relax();
}
#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC_CORE)
static bool use_spinloop(void)
{