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physical page management: eliminate static page frame array and

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maintain page structures dynamically covering only file mappings.
use hash table for address <-> page structure conversion.
This commit is contained in:
Balazs Gerofi
2016-09-11 08:25:38 -04:00
parent 326a4fcee4
commit 8eb3bf3559
6 changed files with 115 additions and 62 deletions
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4
kernel/include/page.h
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@@ -17,8 +17,9 @@
struct page {
struct list_head list;
struct list_head hash;
uint8_t mode;
uint8_t padding[3];
uint64_t phys;
ihk_atomic_t count;
off_t offset;
};
@@ -38,6 +39,7 @@ enum page_mode {
struct page *phys_to_page(uintptr_t phys);
uintptr_t page_to_phys(struct page *page);
int page_unmap(struct page *page);
struct page *phys_to_page_insert_hash(uint64_t phys);
void begin_free_pages_pending(void);
void finish_free_pages_pending(void);