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Commit c6d04612 authored Aug 07, 2014 by Rohit Vaswani Committed by Gerrit - the friendly Code Review server Dec 03, 2015

arm64: smp: Update the topology masks before calling CPU_STARTING notifiers



Currently, the CPU_STARTING notifiers would observe an incorrect sibling
mask since the notifier chain is called before the topology masks are
updated for the new cpu.
Update the topology masks before calling the notifier chain to fix this
problem.

Change-Id: I3f698d777af3bb8e324019619b4c1c4de85e7b2c
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>

parent 1acad2bb

arch/arm/kernel/smp.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -363,12 +363,12 @@ asmlinkage void secondary_start_kernel(void)
		if (smp_ops.smp_secondary_init)
		smp_ops.smp_secondary_init(cpu);

		smp_store_cpu_info(cpu);

		notify_cpu_starting(cpu);

		calibrate_delay();

		smp_store_cpu_info(cpu);

		/*
		* OK, now it's safe to let the boot CPU continue. Wait for
		* the CPU migration code to notice that the CPU is online

arch/arm64/kernel/smp.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -171,10 +171,10 @@ asmlinkage void secondary_start_kernel(void)
		/*
		* Enable GIC and timers.
		*/
		notify_cpu_starting(cpu);

		smp_store_cpu_info(cpu);

		notify_cpu_starting(cpu);

		/*
		* OK, now it's safe to let the boot CPU continue. Wait for
		* the CPU migration code to notice that the CPU is online