Re: [PATCH RFC V4 10/10] jump-label: initialize jump-label subsystem much earlier

Jeremy Fitzhardinge
2011-10-13T18:16:53Z

On 10/13/2011 03:43 AM, Peter Zijlstra wrote:
> On Wed, 2011-10-12 at 17:08 -0700, Jeremy Fitzhardinge wrote:
>> From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
>>
>> Initialize jump_labels much earlier, we can use them.
> We can use them, where? how? what?, that sentence just begs for more.

Er, yeah, looks like I committed it without actually finishing the sentence.

J

>> diff --git a/init/main.c b/init/main.c
>> index 2a9b88a..f4094ed 100644
>> --- a/init/main.c
>> +++ b/init/main.c
>> @@ -637,6 +637,7 @@ asmlinkage void __init start_kernel(void)
>> acpi_early_init(); /* before LAPIC and SMP init */
>> sfi_init_late();
>>
>> + jump_label_init();
>> ftrace_init();
>>
>> /* Do the rest non-__init'ed, we're now alive */
> Can we push them much earlier still? If possible I'd like them to be
> before sched_init() so that I might use them there, if not possible, at
> the very least before enabling interrupts would be nice.
>
>