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| author | holt@sgi.com <holt@sgi.com> | 2008-04-03 15:17:13 -0500 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-04-08 13:51:35 -0700 |
| commit | 2c6e6db41f01b6b4eb98809350827c9678996698 (patch) | |
| tree | 00438344c0ad599c1301db2abe32a4c2ee89b607 /include/asm-ia64/numa.h | |
| parent | 41bd26d67c41e325c6b9e56aadfe9dad8af9a565 (diff) | |
| download | blackbird-op-linux-2c6e6db41f01b6b4eb98809350827c9678996698.tar.gz blackbird-op-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 'include/asm-ia64/numa.h')
| -rw-r--r-- | include/asm-ia64/numa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h index 6a8a27cfae3e..3499ff57bf42 100644 --- a/include/asm-ia64/numa.h +++ b/include/asm-ia64/numa.h @@ -22,6 +22,8 @@ #include <asm/mmzone.h> +#define NUMA_NO_NODE -1 + extern u16 cpu_to_node_map[NR_CPUS] __cacheline_aligned; extern cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned; extern pg_data_t *pgdat_list[MAX_NUMNODES]; |
