Changeset ae6021d in mainline for kernel/generic/src/mm/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:

• kernel/generic/src/mm/as.c (modified) (2 diffs)

kernel/generic/src/mm/as.c

@@ -2187 +2187 @@
 
 sysarg_t sys_as_area_create(uintptr_t base, size_t size, unsigned int flags,
-    uintptr_t bound, int pager)
+    uintptr_t bound, as_area_pager_info_t *pager_info)
 {
         uintptr_t virt = base;
@@ -2193 +2193 @@
         mem_backend_data_t backend_data;
 
-        if (pager == AS_AREA_UNPAGED)
+        if (pager_info == AS_AREA_UNPAGED)
                 backend = &anon_backend;
         else {
                 backend = &user_backend;
-                backend_data.pager = pager;
+                if (copy_from_uspace(&backend_data.pager_info, pager_info,
+                        sizeof(as_area_pager_info_t)) != EOK) {
+                        return (sysarg_t) AS_MAP_FAILED;
+                }
         }
         as_area_t *area = as_area_create(AS, flags, size,