Implement the unmap system call, writing back to the file if a page is dirty before removing from SPT

2024-12-04 19:07:28 +00:00
parent 02b79d1934
commit ecbb4e74a5
3 changed files with 75 additions and 1 deletions
--- a/src/vm/mmap.h
+++ b/src/vm/mmap.h
@@ -20,6 +20,7 @@ struct mmap_entry {
 bool mmap_init (struct thread *t);
 struct mmap_entry *mmap_get (mapid_t mapping);
 struct mmap_entry *mmap_insert (struct file *file, void *upage);
+void mmap_unmap (struct mmap_entry *mmap);
 void mmap_destroy (void);

 #endif /* vm/mmap.h */