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| author | Andrew Morton <akpm@linux-foundation.org> | 2009-01-09 12:27:08 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-11 03:41:58 +0100 |
| commit | 53ce3d9564908794ae7dd32969089b57df5fc098 (patch) | |
| tree | d0eb540d9743155eff6d3c454db3493bf75c9023 /kernel/Makefile | |
| parent | abede81c4fb2e3b85d8760f25e3da39d2c69a134 (diff) | |
| download | lwn-53ce3d9564908794ae7dd32969089b57df5fc098.tar.gz lwn-53ce3d9564908794ae7dd32969089b57df5fc098.zip | |
smp_call_function_single(): be slightly less stupid
If you do
smp_call_function_single(expression-with-side-effects, ...)
then expression-with-side-effects never gets evaluated on UP builds.
As always, implementing it in C is the correct thing to do.
While we're there, uninline it for size and possible header dependency
reasons.
And create a new kernel/up.c, as a place in which to put
uniprocessor-specific code and storage. It should mirror kernel/smp.c.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/Makefile')
| -rw-r--r-- | kernel/Makefile | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/Makefile b/kernel/Makefile index 2921d90ce32f..2aebc4cd7878 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -40,7 +40,11 @@ obj-$(CONFIG_RT_MUTEXES) += rtmutex.o obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o -obj-$(CONFIG_USE_GENERIC_SMP_HELPERS) += smp.o +ifeq ($(CONFIG_USE_GENERIC_SMP_HELPERS),y) +obj-y += smp.o +else +obj-y += up.o +endif obj-$(CONFIG_SMP) += spinlock.o obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o obj-$(CONFIG_PROVE_LOCKING) += spinlock.o |