spinlocks using gcc intrinsics

push_off() / pop_off()
set up per-hart plic stuff so all harts get device interrupts

1 files changed, 2 insertions, 3 deletions

diff --git a/proc.c b/proc.c
index 766fd93..28cac26 100644
--- a/proc.c
+++ b/proc.c
@@ -360,7 +360,7 @@ scheduler(void)
 {
   struct proc *p;
   struct cpu *c = mycpu();
-   
+
   c->proc = 0;
   for(;;){
     // Enable interrupts on this processor.
@@ -385,7 +385,6 @@ scheduler(void)
       c->proc = 0;
     }
     release(&ptable.lock);
-
   }
 }
 
@@ -393,7 +392,7 @@ scheduler(void)
 // and have changed proc->state. Saves and restores
 // intena because intena is a property of this
 // kernel thread, not this CPU. It should
-// be proc->intena and proc->ncli, but that would
+// be proc->intena and proc->noff, but that would
 // break in the few places where a lock is held but
 // there's no process.
 void