Make cp a magic symbol.

1 files changed, 2 insertions, 2 deletions

diff --git a/pipe.c b/pipe.c
index 284d4ee..b866a0e 100644
--- a/pipe.c
+++ b/pipe.c
@@ -87,7 +87,7 @@ pipe_write(struct pipe *p, char *addr, int n)
 
   for(i = 0; i < n; i++){
     while(((p->writep + 1) % PIPESIZE) == p->readp){
-      if(p->readopen == 0 || curproc[cpu()]->killed){
+      if(p->readopen == 0 || cp->killed){
         release(&p->lock);
         return -1;
       }
@@ -111,7 +111,7 @@ pipe_read(struct pipe *p, char *addr, int n)
   acquire(&p->lock);
 
   while(p->readp == p->writep){
-    if(p->writeopen == 0 || curproc[cpu()]->killed){
+    if(p->writeopen == 0 || cp->killed){
       release(&p->lock);
       return 0;
     }