Bricoles/xv6-riscv
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

with per-proc locks, we don't need the intr_on() inside the loop.

Browse source
This commit is contained in:
Robert Morris 2019-07-19 10:20:02 -04:00
parent 32168df609
commit dbd729b32d
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
kernel/proc.c
View file

@ -419,11 +419,11 @@ scheduler(void)
struct proc *p;
struct cpu *c = mycpu();
c->proc = 0;
for(;;){
// Give devices a brief chance to interrupt.
// Let devices interrupt when no lock is held.
intr_on();
c->proc = 0;
for(;;){
for(p = proc; p < &proc[NPROC]; p++) {
acquire(&p->lock);
if(p->state == RUNNABLE) {