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smp.h: move !SMP version of on_each_cpu() out-of-line

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All of the other non-trivial !SMP versions of functions in smp.h are
out-of-line in up.c.  Move on_each_cpu() there as well.

This allows us to get rid of the #include <linux/irqflags.h>.  The
drawback is that this makes both the x86_64 and i386 defconfig !SMP
kernels about 200 bytes larger each.

Signed-off-by: David Daney <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
David Daney 2013-09-11 14:23:26 -07:00 • committed by Linus Torvalds
commit bff2dc42bc
2 changed files with 16 additions and 16 deletions
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11
kernel/up.c
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@ -22,6 +22,17 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
}
EXPORT_SYMBOL(smp_call_function_single);
int on_each_cpu(smp_call_func_t func, void *info, int wait)
{
unsigned long flags;
local_irq_save(flags);
func(info);
local_irq_restore(flags);
return 0;
}
EXPORT_SYMBOL(on_each_cpu);
/*
* Note we still need to test the mask even for UP
* because we actually can get an empty mask from