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BSS/data: demand paging for non-file section and respect user requested NUMA allocation policy

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This commit is contained in:
Balazs Gerofi
2017-01-21 18:45:44 +09:00
parent fdbdcbd0ee
commit afb7cb3a1e
4 changed files with 52 additions and 42 deletions
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8
kernel/syscall.c
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@ -1429,14 +1429,16 @@ do_mmap(const intptr_t addr0, const size_t len0, const int prot,
npages = len >> PAGE_SHIFT;
/* Small allocations mostly benefit from closest RAM,
* otherwise follow user requested policy */
unsigned long __flag = (len >= 2097152) ? IHK_MC_AP_USER : 0;
unsigned long ap_flag =
(len >= AP_USER_THRESHOLD || flags & MAP_STACK) ?
IHK_MC_AP_USER : 0;
if (__flag) {
if (ap_flag) {
vrflags |= VR_AP_USER;
}
p = ihk_mc_alloc_aligned_pages(npages, p2align,
IHK_MC_AP_NOWAIT | __flag);
IHK_MC_AP_NOWAIT | ap_flag);
if (p == NULL) {
dkprintf("%s: warning: failed to allocate %d contiguous pages "
" (bytes: %lu, pgshift: %d), enabling demand paging\n",