[PATCH v2 2/3] powerpc/rtas: allow rescheduling while changing cpu states
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STALE2621d
LANDED
From: Nathan Lynch <hidden>
Date: 2019-08-02 19:35:57
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Landed in mainline as 10e4850d7c7f on 2019-08-20.
rtas_cpu_state_change_mask() potentially operates on scores of cpus, so explicitly allow rescheduling in the loop body. Signed-off-by: Nathan Lynch <redacted> --- arch/powerpc/kernel/rtas.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 05824eb4323b..b7ca2fde68a9 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c@@ -16,6 +16,7 @@ #include <linux/capability.h> #include <linux/delay.h> #include <linux/cpu.h> +#include <linux/sched.h> #include <linux/smp.h> #include <linux/completion.h> #include <linux/cpumask.h>
@@ -898,6 +899,7 @@ static int rtas_cpu_state_change_mask(enum rtas_cpu_state state, cpumask_clear_cpu(cpu, cpus); } } + cond_resched(); } return ret;
--
2.20.1