Changeset 32d2e60 in mainline for uspace/lib/c/generic/futex.c

Timestamp:

2012-12-04T15:54:40Z (12 years ago)

Author:

Adam Hraska <adam.hraska+hos@…>

Branches:

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

Children:

b7acf38

Parents:

d54b303

Message:

Compilation fixes of upgradable futexes.

File:

• uspace/lib/c/generic/futex.c (modified) (3 diffs)

uspace/lib/c/generic/futex.c

@@ -36 +36 @@
 #include <atomic.h>
 
+
 /** Initialize futex counter.
  *
@@ -50 +51 @@
 #ifdef FUTEX_UPGRADABLE
 
-int _upgrade_futex = 0;
+int _upgrade_futexes = 0;
 static futex_t upg_and_wait_futex = FUTEX_INITIALIZER;
 
@@ -57 +58 @@
         _futex_down(&upg_and_wait_futex);
         
-        if (!_upgrade_futex) {
-                rcu_assign(_upgrade_futex, 1);
-                rcu_synchronize();
+        if (!_upgrade_futexes) {
+                rcu_assign(_upgrade_futexes, 1);
+                _rcu_synchronize(BM_BLOCK_THREAD);
         }