Changeset 78de83de in mainline for kernel/generic/src/mm/as.c

Timestamp:

2018-09-07T15:41:29Z (7 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

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

Children:

077842c

Parents:

508b0df1

Message:

Improve kernel spinlock and AS refcount.

File:

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

kernel/generic/src/mm/as.c

@@ -163 +163 @@
                 as->asid = ASID_INVALID;
 
-        atomic_set(&as->refcount, 0);
+        refcount_init(&as->refcount);
         as->cpu_refcount = 0;
 
@@ -190 +190 @@
 
         assert(as != AS);
-        assert(atomic_get(&as->refcount) == 0);
+        assert(refcount_unique(&as->refcount));
 
         /*
@@ -267 +267 @@
 NO_TRACE void as_hold(as_t *as)
 {
-        atomic_inc(&as->refcount);
+        refcount_up(&as->refcount);
 }
 
@@ -275 +275 @@
  * destroys the address space.
  *
- * @param asAddress space to be released.
+ * @param as Address space to be released.
  *
  */
 NO_TRACE void as_release(as_t *as)
 {
-        if (atomic_predec(&as->refcount) == 0)
+        if (refcount_down(&as->refcount))
                 as_destroy(as);
 }