Refactor: abstract new page allocation to one general function and make helper functions static

2024-11-27 19:41:22 +00:00
parent c74a8c55aa
commit 4f84a83611
4 changed files with 34 additions and 28 deletions
--- a/src/userprog/exception.c
+++ b/src/userprog/exception.c
@@ -146,9 +146,9 @@ page_fault (struct intr_frame *f)
  write = (f->error_code & PF_W) != 0;
  user = (f->error_code & PF_U) != 0;

-   if (user && needs_new_page (fault_addr, f->esp))
+   if (user)
     {
-       if (grow_stack (fault_addr))
+       if (try_alloc_new_page (fault_addr, f->esp))
        return;
     }