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authorMike Travis <travis@sgi.com>2008-04-04 18:11:01 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-19 19:44:59 +0200
commit9f0e8d0400d925c3acd5f4e01dbeb736e4011882 (patch)
tree970dab54eeba019e4649aa32730489206be5f8a2 /arch/x86/Kconfig
parent321a8e9dcb714f3c350ba55e41ed447bf3f05fac (diff)
downloadlwn-9f0e8d0400d925c3acd5f4e01dbeb736e4011882.tar.gz
lwn-9f0e8d0400d925c3acd5f4e01dbeb736e4011882.zip
x86: convert cpumask_of_cpu macro to allocated array
* Here is a simple patch to use an allocated array of cpumasks to represent cpumask_of_cpu() instead of constructing one on the stack. It's based on the Kconfig option "HAVE_CPUMASK_OF_CPU_MAP" which is currently only set for x86_64 SMP. Otherwise the the existing cpumask_of_cpu() is used but has been changed to produce an lvalue so a pointer to it can be used. Cc: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2a59dbb28248..7f30b754bfc3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -117,6 +117,9 @@ config ARCH_HAS_CPU_RELAX
config HAVE_SETUP_PER_CPU_AREA
def_bool X86_64 || (X86_SMP && !X86_VOYAGER)
+config HAVE_CPUMASK_OF_CPU_MAP
+ def_bool X86_64_SMP
+
config ARCH_HIBERNATION_POSSIBLE
def_bool y
depends on !SMP || !X86_VOYAGER