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fix: do not leak when inserting the same page twice, just update

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Gleb Koval
2024-12-05 19:38:27 +00:00
parent 0f1f7b9a6f
commit 4dd6b6e928
3 changed files with 13 additions and 5 deletions
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6
src/vm/page.h
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@@ -30,16 +30,14 @@ struct page_entry {
struct hash_elem elem; /* An elem for the hash table. */
};
unsigned page_hash (const struct hash_elem *e, void *aux);
bool page_less (const struct hash_elem *a_, const struct hash_elem *b_,
void *aux);
bool init_pages (struct hash *pages);
struct page_entry *page_insert_swapped (void *upage, void* kpage,
struct thread *owner);
struct page_entry *page_insert_file (struct file *file, off_t ofs, void *upage,
uint32_t read_bytes, uint32_t zero_bytes,
bool writable, enum page_type);
struct page_entry *page_get (void *upage);
bool page_load_file (struct page_entry *page, bool writable);
bool page_load_file (struct page_entry *page);
void page_cleanup (struct hash_elem *e, void *aux);
bool page_in_swap (struct thread *, void *);