Changeset ae6021d in mainline for uspace/lib/c/generic/as.c

Timestamp:

2016-09-02T15:44:09Z (8 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

e755b3f

Parents:

c1f7a315

Message:

Associate each paged as_area with its memory object upon creation

This will allow us to have one pager fibril per task rather than one
per paged area.

File:

• uspace/lib/c/generic/as.c (modified) (2 diffs)

uspace/lib/c/generic/as.c

@@ -45 +45 @@
 /** Create address space area.
  *
- * @param base  Starting virtual address of the area.
- *              If set to AS_AREA_ANY ((void *) -1),
- *              the kernel finds a mappable area.
- * @param size  Size of the area.
- * @param flags Flags describing type of the area.
- * @param pager If non-negative, phone to the external pager backing the area.
- *              If AS_AREA_UNPAGED (-1), the area is anonymous.
+ * @param base       Starting virtual address of the area.
+ *                   If set to AS_AREA_ANY ((void *) -1), the kernel finds a
+ *                   mappable area.
+ * @param size       Size of the area.
+ * @param flags      Flags describing type of the area.
+ * @param pager_info Pager info structure or AS_AREA_UNPAGED (NULL) if the area
+ *                   is not paged (i.e. anonymous).
  *
  * @return Starting virtual address of the created area on success.
@@ -57 +57 @@
  *
  */
-void *as_area_create(void *base, size_t size, unsigned int flags, int pager)
+void *as_area_create(void *base, size_t size, unsigned int flags,
+    as_area_pager_info_t *pager_info)
 {
         return (void *) __SYSCALL5(SYS_AS_AREA_CREATE, (sysarg_t) base,
             (sysarg_t) size, (sysarg_t) flags, (sysarg_t) __entry,
-            (sysarg_t) pager);
+            (sysarg_t) pager_info);
 }