Shreyas B. Prabhu 3609d819a3 powerpc: Make doorbell check preemption safe ... Doorbell can be used to cause ipi on cpus which are sibling threads on the same core. So icp_native_cause_ipi checks if the destination cpu is a sibling thread of the current cpu and uses doorbell in such cases. But while running with CONFIG_PREEMPT=y, since this section is preemtible, we can run into issues if after we check if the destination cpu is a sibling cpu, the task gets migrated from a sibling cpu to a cpu on another core. Fix this by using get_cpu()/ put_cpu() Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2015-06-17 08:01:03 +10:00
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Kconfig	powerpc: Add kconfig for muxed smp ipi support	2011-05-19 15:31:05 +10:00
Makefile	powerpc/powernv: Add OPAL ICS backend	2011-09-20 16:09:59 +10:00
icp-hv.c	powerpc: Delete non-required instances of include <linux/init.h>	2014-01-15 13:46:44 +11:00
icp-native.c	powerpc: Make doorbell check preemption safe	2015-06-17 08:01:03 +10:00
ics-opal.c	powerpc: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:36 -08:00
ics-rtas.c	powerpc: use %*pb[l] to print bitmaps including cpumasks and nodemasks	2015-02-13 21:21:36 -08:00
xics-common.c	powerpc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc	2015-06-02 16:54:44 +10:00