Fix the page need calculation, it was possibly off by one.

2011-12-07 00:07:21 +01:00 · 2011-12-07 00:07:21 +01:00 · 5e5eef0b5b
commit 5e5eef0b5b
parent 02e8a1d136
1 changed files with 2 additions and 1 deletions
--- a/src/system/kernel/guarded_heap.cpp
+++ b/src/system/kernel/guarded_heap.cpp
@ -333,7 +333,8 @@ guarded_heap_area_init(guarded_heap& heap, area_id id, void* baseAddress,
 	area->used_pages = 0;

 	size_t pagesNeeded = (sizeof(guarded_heap_area)
-		+ area->page_count * sizeof(guarded_heap_page)) / B_PAGE_SIZE;
+		+ area->page_count * sizeof(guarded_heap_page)
+		+ B_PAGE_SIZE - 1) / B_PAGE_SIZE;

 	area->page_count -= pagesNeeded;
 	area->size = area->page_count * B_PAGE_SIZE;