Changeset 08a19ba in mainline for kernel/generic/src/mm/as.c

Timestamp:

2008-06-23T18:44:48Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

1a1744e

Parents:

deaf8d5

Message:

Support for active mutexes. Active mutexes implement busy waiting, pretty much
in the same way as spinlocks, but can be passed to condition variables, which is
the motivation for this enhancement.

File:

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

kernel/generic/src/mm/as.c

@@ -127 +127 @@
 
         link_initialize(&as->inactive_as_with_asid_link);
-        mutex_initialize(&as->lock);    
+        mutex_initialize(&as->lock, MUTEX_PASSIVE);     
         
         rc = as_constructor_arch(as, flags);
@@ -169 +169 @@
         as = [as_t new];
         link_initialize(&as->inactive_as_with_asid_link);
-        mutex_initialize(&as->lock);    
+        mutex_initialize(&as->lock, MUTEX_PASSIVE);     
         (void) as_constructor_arch(as, flags);
 #else
@@ -313 +313 @@
         a = (as_area_t *) malloc(sizeof(as_area_t), 0);
 
-        mutex_initialize(&a->lock);
+        mutex_initialize(&a->lock, MUTEX_PASSIVE);
         
         a->as = as;
@@ -695 +695 @@
         if (!sh_info) {
                 sh_info = (share_info_t *) malloc(sizeof(share_info_t), 0);
-                mutex_initialize(&sh_info->lock);
+                mutex_initialize(&sh_info->lock, MUTEX_PASSIVE);
                 sh_info->refcount = 2;
                 btree_create(&sh_info->pagemap);