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

> 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.




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