Changeset 18e0a6c in mainline for src/proc/scheduler.c

Timestamp:

2005-06-09T23:43:45Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

74df77d

Parents:

d896525

Message:

Implement several assembler functions in gcc's asm notation instead of in .s or .S file.
Gain both better speed and size.

File:

• src/proc/scheduler.c (modified) (4 diffs)

src/proc/scheduler.c

@@ -132 +132 @@
                 }
         
-                /* avoid deadlock with relink_rq */
+                /* avoid deadlock with relink_rq() */
                 if (!spinlock_trylock(&CPU->lock)) {
                         /*
@@ -447 +447 @@
 
                         cpu = &cpus[(i + k) % config.cpu_active];
-                        r = &cpu->rq[j];
 
                         /*
@@ -454 +453 @@
                          */
                         if (CPU == cpu)
-                                continue;
+                                continue;                               
 
 restart:                pri = cpu_priority_high();
+                        r = &cpu->rq[j];
                         spinlock_lock(&r->lock);
                         if (r->n == 0) {
@@ -471 +471 @@
                                  * We don't want to steal CPU-wired threads neither threads already stolen.
                                  * The latter prevents threads from migrating between CPU's without ever being run.
-                                 * We don't want to steal threads whose FPU context is still in CPU
+                                 * We don't want to steal threads whose FPU context is still in CPU.
                                  */
                                 spinlock_lock(&t->lock);
                                 if ( (!(t->flags & (X_WIRED | X_STOLEN))) && (!(t->fpu_context_engaged)) ) {
+                                
                                         /*
                                          * Remove t from r.