From: Ben Pfaff <blp@cs.stanford.edu>
Date: Wed, 21 Dec 2005 00:58:30 +0000 (+0000)
Subject: Clarify function comment.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=007964552c968c55f62a289b8d8eb48d1f4945d9;p=pintos-anon

Clarify function comment.
Via Ben Sapp <bensapp@stanford.edu>.
---

diff --git a/src/userprog/pagedir.c b/src/userprog/pagedir.c
index 9b2e3c0..5e7fa92 100644
--- a/src/userprog/pagedir.c
+++ b/src/userprog/pagedir.c
@@ -88,6 +88,8 @@ lookup_page (uint32_t *pd, const void *vaddr, bool create)
 /* Adds a mapping from user virtual page UPAGE to kernel virtual
    address KPAGE in page directory PD.
    UPAGE must not already be mapped.
+   KPAGE should probably be a page obtained from the user pool
+   with palloc_get_page() .
    If WRITABLE is true, the new page is read/write;
    otherwise it is read-only.
    Returns true if successful, false if memory allocation