gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NUMA: default policy: allocate from CPU's NUMA node

Browse Source
This commit is contained in:
Balazs Gerofi
2016-09-19 23:36:26 +09:00
parent 11125b0d68
commit f39fa54c39
2 changed files with 7 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
kernel/mem.c
View File

@ -86,7 +86,8 @@ static void *allocate_aligned_pages(int npages, int p2align,
struct ihk_page_allocator_desc *pa_allocator;
list_for_each_entry(pa_allocator,
&memory_nodes[i].allocators, list) {
&memory_nodes[(ihk_mc_get_numa_id() + i) %
ihk_mc_get_nr_numa_nodes()].allocators, list) {
pa = ihk_pagealloc_alloc(pa_allocator, npages, p2align);
if (pa) break;
@ -94,12 +95,13 @@ static void *allocate_aligned_pages(int npages, int p2align,
if (pa) break;
}
/* all_pagealloc_alloc returns zero when error occured,
and callee (in mcos/kernel/process.c) so propagate it */
if(pa)
if (pa)
return phys_to_virt(pa);
/*
if(flag != IHK_MC_AP_NOWAIT)
panic("Not enough space\n");
*/
return NULL;
}