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| author | Mike Travis | 2007-10-16 10:24:05 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-10-16 18:42:50 +0200 |
| commit | d5a7430ddcdb598261d70f7eb1bf450b5be52085 (patch) | |
| tree | 3b94672e0dbc2bff125de3266908f1a47a17b795 /include/asm-x86/smp_32.h | |
| parent | x86: Convert cpu_core_map to be a per cpu variable (diff) | |
| download | kernel-qcow2-linux-d5a7430ddcdb598261d70f7eb1bf450b5be52085.tar.gz kernel-qcow2-linux-d5a7430ddcdb598261d70f7eb1bf450b5be52085.tar.xz kernel-qcow2-linux-d5a7430ddcdb598261d70f7eb1bf450b5be52085.zip | |
Convert cpu_sibling_map to be a per cpu variable
Convert cpu_sibling_map from a static array sized by NR_CPUS to a per_cpu
variable. This saves sizeof(cpumask_t) * NR unused cpus. Access is mostly
from startup and CPU HOTPLUG functions.
Signed-off-by: Mike Travis <travis@sgi.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-x86/smp_32.h')
| -rw-r--r-- | include/asm-x86/smp_32.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h index 01ab31bb262a..955dd7c8538f 100644 --- a/include/asm-x86/smp_32.h +++ b/include/asm-x86/smp_32.h @@ -30,7 +30,7 @@ extern void smp_alloc_memory(void); extern int pic_mode; extern int smp_num_siblings; -extern cpumask_t cpu_sibling_map[]; +DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); DECLARE_PER_CPU(cpumask_t, cpu_core_map); extern void (*mtrr_hook) (void); |