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| author | Thomas Gleixner <tglx@linutronix.de> | 2016-02-26 18:43:28 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-03-01 20:36:54 +0100 |
| commit | cff7d378d3fdbb53db9b6e2578b14855f401cd41 (patch) | |
| tree | 2a81d3627fa3bd7397f89e0998c2cf4141f2e8a4 /init | |
| parent | 5ba9ac8e2c45ab165e5b4a246f4821d319656e9d (diff) | |
| download | lwn-cff7d378d3fdbb53db9b6e2578b14855f401cd41.tar.gz lwn-cff7d378d3fdbb53db9b6e2578b14855f401cd41.zip | |
cpu/hotplug: Convert to a state machine for the control processor
Move the split out steps into a callback array and let the cpu_up/down
code iterate through the array functions. For now most of the
callbacks are asymmetric to resemble the current hotplug maze.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: Rik van Riel <riel@redhat.com>
Cc: Rafael Wysocki <rafael.j.wysocki@intel.com>
Cc: "Srivatsa S. Bhat" <srivatsa@mit.edu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Turner <pjt@google.com>
Link: http://lkml.kernel.org/r/20160226182340.671816690@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'init')
| -rw-r--r-- | init/main.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/init/main.c b/init/main.c index 58c9e374704b..c2ea72362ee3 100644 --- a/init/main.c +++ b/init/main.c @@ -452,20 +452,6 @@ void __init parse_early_param(void) done = 1; } -/* - * Activate the first processor. - */ - -static void __init boot_cpu_init(void) -{ - int cpu = smp_processor_id(); - /* Mark the boot cpu "present", "online" etc for SMP and UP case */ - set_cpu_online(cpu, true); - set_cpu_active(cpu, true); - set_cpu_present(cpu, true); - set_cpu_possible(cpu, true); -} - void __init __weak smp_setup_processor_id(void) { } @@ -530,6 +516,7 @@ asmlinkage __visible void __init start_kernel(void) setup_command_line(command_line); setup_nr_cpu_ids(); setup_per_cpu_areas(); + boot_cpu_state_init(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ build_all_zonelists(NULL, NULL); |