From mboxrd@z Thu Jan 1 00:00:00 1970 From: bigeasy@linutronix.de (Sebastian Andrzej Siewior) Date: Sun, 27 Nov 2016 00:13:43 +0100 Subject: [PATCH 15/22] arm64/cpuinfo: Make hotplug notifier symmetric In-Reply-To: <20161126231350.10321-1-bigeasy@linutronix.de> References: <20161126231350.10321-1-bigeasy@linutronix.de> Message-ID: <20161126231350.10321-16-bigeasy@linutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Anna-Maria Gleixner 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. Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel at lists.infradead.org Signed-off-by: Anna-Maria Gleixner Signed-off-by: Sebastian Andrzej Siewior --- arch/arm64/kernel/cpuinfo.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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; } -- 2.10.2