xv6/spinlock.h

struct spinlock {
  unsigned int locked;
  unsigned who;
  int count;
  unsigned locker_pc;
};
cvs add spinlock.h fix race in schedule() 2006-07-12 09:10:25 +00:00			`struct spinlock {`
			`unsigned int locked;`
i think my cmpxchg use was wrong in acquire nesting cli/sti: release shouldn't always enable interrupts separate setup of lapic from starting of other cpus, so cpu() works earlier flag to disable locking in console output make locks work even when curproc==0 (still crashes in clock interrupt) 2006-07-12 11:15:38 +00:00			`unsigned who;`
cvs add spinlock.h fix race in schedule() 2006-07-12 09:10:25 +00:00			`int count;`
			`unsigned locker_pc;`
			`};`