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| author | David Daney <david.daney@cavium.com> | 2013-09-11 14:23:26 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:58:25 -0700 |
| commit | bff2dc42bcafdd75c0296987747f782965d691a0 (patch) | |
| tree | 3e921a8fc93d7bff9a5ac1d5221be9f9938447e4 /kernel | |
| parent | 081192b25c2d4620b5f5838620624d3daee94b66 (diff) | |
| download | lwn-bff2dc42bcafdd75c0296987747f782965d691a0.tar.gz lwn-bff2dc42bcafdd75c0296987747f782965d691a0.zip | |
smp.h: move !SMP version of on_each_cpu() out-of-line
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 <david.daney@cavium.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/up.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/up.c b/kernel/up.c index b1cf036255f3..630d72bf7e41 100644 --- a/kernel/up.c +++ b/kernel/up.c @@ -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 |