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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /kernel/trunk/generic/src/proc/scheduler.c @ 702

  → /kernel/trunk/generic/src/proc/scheduler.c @ 703

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 702 → Rev 703

/kernel/trunk/generic/src/proc/scheduler.c
32,7 → 32,7
#include <mm/heap.h>
#include <mm/frame.h>
#include <mm/page.h>
#include <mm/vm.h>
#include <mm/as.h>
#include <arch/asm.h>
#include <arch/faddr.h>
#include <arch/atomic.h>
352,28 → 352,28
* If both the old and the new task are the same, lots of work is avoided.
*/
if (TASK != THREAD->task) {
vm_t *m1 = NULL;
vm_t *m2;
as_t *as1 = NULL;
as_t *as2;
if (TASK) {
spinlock_lock(&TASK->lock);
m1 = TASK->vm;
as1 = TASK->as;
spinlock_unlock(&TASK->lock);
}
spinlock_lock(&THREAD->task->lock);
m2 = THREAD->task->vm;
as2 = THREAD->task->as;
spinlock_unlock(&THREAD->task->lock);
/*
* Note that it is possible for two tasks to share one vm mapping.
* Note that it is possible for two tasks to share one address space.
*/
if (m1 != m2) {
if (as1 != as2) {
/*
* Both tasks and vm mappings are different.
* Both tasks and address spaces are different.
* Replace the old one with the new one.
*/
vm_install(m2);
as_install(as2);
}
TASK = THREAD->task;
}