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Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
author
Linus Torvalds
<torvalds@linux-foundation.org>
Tue, 1 Apr 2014 16:50:01 +0000
(09:50 -0700)
committer
Linus Torvalds
<torvalds@linux-foundation.org>
Tue, 1 Apr 2014 16:50:01 +0000
(09:50 -0700)
Pull x86 mm change from Ingo Molnar:
"A micro-optimization for acpi_numa_slit_init()"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Avoid duplicated pxm_to_node() calls
arch/x86/mm/srat.c
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diff --git
a/arch/x86/mm/srat.c
b/arch/x86/mm/srat.c
index
1953e9c
..
66338a6
100644
(file)
--- a/
arch/x86/mm/srat.c
+++ b/
arch/x86/mm/srat.c
@@
-52,12
+52,18
@@
void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
int i, j;
for (i = 0; i < slit->locality_count; i++) {
- if (pxm_to_node(i) == NUMA_NO_NODE)
+ const int from_node = pxm_to_node(i);
+
+ if (from_node == NUMA_NO_NODE)
continue;
+
for (j = 0; j < slit->locality_count; j++) {
- if (pxm_to_node(j) == NUMA_NO_NODE)
+ const int to_node = pxm_to_node(j);
+
+ if (to_node == NUMA_NO_NODE)
continue;
- numa_set_distance(pxm_to_node(i), pxm_to_node(j),
+
+ numa_set_distance(from_node, to_node,
slit->entry[slit->locality_count * i + j]);
}
}