On Mon, Oct 29, 2012 at 10:34 PM, Jiří Zárevúcky
<[email protected]> wrote:
> http://bazaar.launchpad.net/~zarevucky-jiri/helenos/golang/revision/1596
>
I'm curious if the guard pages can be created in a much more simpler
way in kernel/generic/mm/as.c
In the as_get_unmapped_area():
for (btree_key_t i = 0; i < node->keys; i++) {
as_area_t *area = (as_area_t *) node->value[i];
mutex_lock(&area->lock);
-------> addr =
ALIGN_UP(area->base + P2SZ(area->pages), PAGE_SIZE);
bool avail =
((addr >= bound) && (addr >= area->base) &&
(check_area_conflicts(as, addr, pages, area)));
mutex_unlock(&area->lock);
if (avail)
return addr;
}
---------------------
addr = ALIGN_UP(area->base + P2SZ(area->pages) + PAGE_SIZE, PAGE_SIZE);
It should leave an unmapped page beetween a two adiacent areas
--
--------------------
Maurizio Lombardi
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