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hpdata: Use addr/size instead of begin/npages.

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This is easier for the users of the hpdata.
This commit is contained in:
David Goldblatt 2020-11-30 14:34:27 -08:00 • committed by David Goldblatt
parent 5228d869ee
commit 0971e1e4e3
3 changed files with 20 additions and 20 deletions
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16
src/hpdata.c
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@ -28,8 +28,10 @@ hpdata_init(hpdata_t *hpdata, void *addr, uint64_t age) {
fb_init(hpdata->active_pages, HUGEPAGE_PAGES);
}
size_t
hpdata_reserve_alloc(hpdata_t *hpdata, size_t npages) {
void *
hpdata_reserve_alloc(hpdata_t *hpdata, size_t sz) {
assert((sz & PAGE_MASK) == 0);
size_t npages = sz >> LG_PAGE;
assert(npages <= hpdata_longest_free_range_get(hpdata));
size_t result;
@ -91,11 +93,17 @@ hpdata_reserve_alloc(hpdata_t *hpdata, size_t npages) {
}
hpdata_longest_free_range_set(hpdata, largest_unchosen_range);
return result;
return (void *)(
(uintptr_t)hpdata_addr_get(hpdata) + (result << LG_PAGE));
}
void
hpdata_unreserve(hpdata_t *hpdata, size_t begin, size_t npages) {
hpdata_unreserve(hpdata_t *hpdata, void *addr, size_t sz) {
assert((sz & PAGE_MASK) == 0);
size_t begin = ((uintptr_t)addr - (uintptr_t)hpdata_addr_get(hpdata))
>> LG_PAGE;
assert(begin < HUGEPAGE_PAGES);
size_t npages = sz >> LG_PAGE;
size_t old_longest_range = hpdata_longest_free_range_get(hpdata);
fb_unset_range(hpdata->active_pages, HUGEPAGE_PAGES, begin, npages);