提交 fa84e9ee 编写于 作者: T Thomas Gleixner

init: Move sched_clock_init after late_time_init

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: NThomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Cc: linux-arch@vger.kernel.org
上级 1e23502c
...@@ -631,7 +631,6 @@ asmlinkage void __init start_kernel(void) ...@@ -631,7 +631,6 @@ asmlinkage void __init start_kernel(void)
softirq_init(); softirq_init();
timekeeping_init(); timekeeping_init();
time_init(); time_init();
sched_clock_init();
profile_init(); profile_init();
if (!irqs_disabled()) if (!irqs_disabled())
printk(KERN_CRIT "start_kernel(): bug: interrupts were " printk(KERN_CRIT "start_kernel(): bug: interrupts were "
...@@ -682,6 +681,7 @@ asmlinkage void __init start_kernel(void) ...@@ -682,6 +681,7 @@ asmlinkage void __init start_kernel(void)
numa_policy_init(); numa_policy_init();
if (late_time_init) if (late_time_init)
late_time_init(); late_time_init();
sched_clock_init();
calibrate_delay(); calibrate_delay();
pidmap_init(); pidmap_init();
anon_vma_init(); anon_vma_init();
......
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