Changeset ada559c in mainline for kernel/genarch/src/mm/as_ht.c

Timestamp:

2010-05-30T21:11:39Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

a820bf7

Parents:

c8e99bb

Message:

Add page_table_locked() interface.

File:

• kernel/genarch/src/mm/as_ht.c (modified) (3 diffs)

kernel/genarch/src/mm/as_ht.c

@@ -51 +51 @@
 static void ht_lock(as_t *, bool);
 static void ht_unlock(as_t *, bool);
+static bool ht_locked(as_t *);
 
 as_operations_t as_ht_operations = {
@@ -57 +58 @@
         .page_table_lock = ht_lock,
         .page_table_unlock = ht_unlock,
+        .page_table_locked = ht_locked,
 };
 
@@ -126 +128 @@
 }
 
+/** Test whether page tables are locked.
+ *
+ * @param as            Address space where the page tables belong.
+ *
+ * @return              True if the page tables belonging to the address soace
+ *                      are locked, otherwise false.
+ */
+bool ht_locked(as_t *as)
+{
+        return (mutex_locked(&page_ht_lock) && mutex_locked(&as->lock));
+}
+
 /** @}
  */