root/spinlock.h

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INCLUDED FROM


   1 // Mutual exclusion lock.
   2 struct spinlock {
   3   uint locked;       // Is the lock held?
   4 
   5   // For debugging:
   6   char *name;        // Name of lock.
   7   struct cpu *cpu;   // The cpu holding the lock.
   8   uint pcs[10];      // The call stack (an array of program counters)
   9                      // that locked the lock.
  10 };
  11 

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