[RFC patch 31/32] init: Move sched_clock_init after late_time_init
From: Thomas Gleixner <hidden>
Date: 2009-08-21 21:34:17
Also in:
lkml
Some architectures initialize clocks and timers in late_time_init and x86 wants to do the same to avoid FIXMAP hackery for calibrating the TSC. That would result in undefined sched_clock readout and wreckaged printk timestamps again. We probably have those already on archs which do all their time/clock setup in late_time_init. There is no harm to move that after late_time_init except that a few more boot timestamps are stale. The scheduler is not active at that point so no real wreckage is expected. Signed-off-by: Thomas Gleixner <redacted> Cc: linux-arch@vger.kernel.org --- init/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6/init/main.c ===================================================================
--- linux-2.6.orig/init/main.c
+++ linux-2.6/init/main.c@@ -631,7 +631,6 @@ asmlinkage void __init start_kernel(void softirq_init(); timekeeping_init(); time_init(); - sched_clock_init(); profile_init(); if (!irqs_disabled()) printk(KERN_CRIT "start_kernel(): bug: interrupts were "
@@ -682,6 +681,7 @@ asmlinkage void __init start_kernel(void numa_policy_init(); if (late_time_init) late_time_init(); + sched_clock_init(); calibrate_delay(); pidmap_init(); anon_vma_init();