Changeset 0ff03f3 in mainline for kernel/generic/src/mm/page.c

Timestamp:

2011-05-21T16:23:43Z (13 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

235e6c7

Parents:

9d47440

Message:

Allow calling page_mapping_find() with unlocked page tables.

File:

• kernel/generic/src/mm/page.c (modified) (4 diffs)

kernel/generic/src/mm/page.c

@@ -108 +108 @@
  * using flags. Allocate and setup any missing page tables.
  *
- * @param as    Address space to wich page belongs.
+ * @param as    Address space to which page belongs.
  * @param page  Virtual address of the page to be mapped.
  * @param frame Physical address of memory frame to which the mapping is
@@ -135 +135 @@
  * this call visible.
  *
- * @param as   Address space to wich page belongs.
+ * @param as   Address space to which page belongs.
  * @param page Virtual address of the page to be demapped.
  *
@@ -152 +152 @@
 }
 
-/** Find mapping for virtual page
+/** Find mapping for virtual page.
  *
- * Find mapping for virtual page.
- *
- * @param as   Address space to wich page belongs.
- * @param page Virtual page.
+ * @param as     Address space to which page belongs.
+ * @param page   Virtual page.
+ * @param nolock True if the page tables need not be locked.
  *
  * @return NULL if there is no such mapping; requested mapping
@@ -163 +162 @@
  *
  */
-NO_TRACE pte_t *page_mapping_find(as_t *as, uintptr_t page)
+NO_TRACE pte_t *page_mapping_find(as_t *as, uintptr_t page, bool nolock)
 {
-        ASSERT(page_table_locked(as));
+        ASSERT(nolock || page_table_locked(as));
         
         ASSERT(page_mapping_operations);