Changeset 5e984f2 in mainline for kernel/generic/src/syscall/syscall.c

Timestamp:

2010-05-09T18:23:03Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

cd98e594

Parents:

4039c77

Message:

Disable interrupts and lock THREAD before calling thread_update_accounting() from syscall_handler().

File:

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

kernel/generic/src/syscall/syscall.c

@@ -60 +60 @@
 {
         unative_t rc;
+        ipl_t ipl;
 
         /* Do userpace accounting */
+        ipl = interrupts_disable();
+        spinlock_lock(&THREAD->lock);
         thread_update_accounting(true);
+        spinlock_unlock(&THREAD->lock);
+        interrupts_restore(ipl);
 
 #ifdef CONFIG_UDEBUG
@@ -100 +105 @@
 
         /* Do kernel accounting */
+        ipl = interrupts_disable();
+        spinlock_lock(&THREAD->lock);
         thread_update_accounting(false);
+        spinlock_unlock(&THREAD->lock);
+        interrupts_restore(ipl);
         
         return rc;