Changeset 4365d10 in mainline

Timestamp:

2007-04-18T19:10:26Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

cc85fb9

Parents:

2e915f2

Message:

Document and assert proper usage of THREAD_FLAG_WIRED.
Original patch by Jan Hudecek.

Location:

kernel/generic

Files:

• include/proc/thread.h (modified) (1 diff)
• src/proc/thread.c (modified) (1 diff)

kernel/generic/include/proc/thread.h

@@ -54 +54 @@
 /* Thread flags */
 
-/** Thread cannot be migrated to another CPU. */
+/** Thread cannot be migrated to another CPU.
+ *
+ * When using this flag, the caller must set cpu in the thread_t
+ * structure manually before calling thread_ready (even on uniprocessor).
+ */ 
 #define THREAD_FLAG_WIRED       (1 << 0)
 /** Thread was migrated to another CPU and has not run yet. */

kernel/generic/src/proc/thread.c

@@ -239 +239 @@
         cpu = CPU;
         if (t->flags & THREAD_FLAG_WIRED) {
+                ASSERT(t->cpu != NULL);
                 cpu = t->cpu;
         }