diff options
| author | holt@sgi.com <holt@sgi.com> | 2008-04-03 22:17:13 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-04-08 22:51:35 +0200 |
| commit | 2c6e6db41f01b6b4eb98809350827c9678996698 (patch) | |
| tree | 00438344c0ad599c1301db2abe32a4c2ee89b607 /arch/ia64/kernel/numa.c | |
| parent | [IA64] Correct pernodesize calculation. (diff) | |
| download | linux-2c6e6db41f01b6b4eb98809350827c9678996698.tar.xz linux-2c6e6db41f01b6b4eb98809350827c9678996698.zip | |
[IA64] Minimize per_cpu reservations.
This attached patch significantly shrinks boot memory allocation on ia64.
It does this by not allocating per_cpu areas for cpus that can never
exist.
In the case where acpi does not have any numa node description of the
cpus, I defaulted to assigning the first 32 round-robin on the known
nodes.. For the !CONFIG_ACPI I used for_each_possible_cpu().
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/numa.c')
| -rw-r--r-- | arch/ia64/kernel/numa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/numa.c b/arch/ia64/kernel/numa.c index a78b45f5fe2f..c93420c97409 100644 --- a/arch/ia64/kernel/numa.c +++ b/arch/ia64/kernel/numa.c @@ -73,7 +73,7 @@ void __init build_cpu_to_node_map(void) for(node=0; node < MAX_NUMNODES; node++) cpus_clear(node_to_cpu_mask[node]); - for(cpu = 0; cpu < NR_CPUS; ++cpu) { + for_each_possible_early_cpu(cpu) { node = -1; for (i = 0; i < NR_CPUS; ++i) if (cpu_physical_id(cpu) == node_cpuid[i].phys_id) { |