diff options
| author | Anna-Maria Gleixner <anna-maria@linutronix.de> | 2016-11-27 02:13:43 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-12-02 02:52:37 +0300 |
| commit | 914fb85f01571233af199a78ed1f88d9268421fd (patch) | |
| tree | fbf28b475b9a39a8137e1c13a81b2490578d3a8f | |
| parent | e46b1db249d83bb19b6bdbed2b2e2ff3858cd211 (diff) | |
| download | linux-914fb85f01571233af199a78ed1f88d9268421fd.tar.xz | |
arm64/cpuinfo: Make hotplug notifier symmetric
There is no requirement to keep the sysfs files around until the CPU is
completely dead. Remove them during the DOWN_PREPARE notification. This is
a preparatory patch for converting to the hotplug state machine.
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: rt@linutronix.de
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20161126231350.10321-16-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/arm64/kernel/cpuinfo.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index b3d5b3e8fbcb..19aad7041e14 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -272,9 +272,10 @@ static int cpuid_callback(struct notifier_block *nb, switch (action & ~CPU_TASKS_FROZEN) { case CPU_ONLINE: + case CPU_DOWN_FAILED: rc = cpuid_add_regs(cpu); break; - case CPU_DEAD: + case CPU_DOWN_PREPARE: rc = cpuid_remove_regs(cpu); break; } |