sys/sys/iosched.h

   1 /*
   2  * SYS/IOSCHED.H
   3  *
   4  * I/O Scheduler
   5  *
   6  * $DragonFly: src/sys/sys/iosched.h,v 1.1 2008/06/28 17:59:47 dillon Exp $
   7  */
   8
   9 #ifndef _SYS_IOSCHED_H_
  10 #define _SYS_IOSCHED_H_
  11
  12 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
  13
  14 #ifndef _SYS_TYPES_H_
  15 #include <sys/types.h>
  16 #endif
  17 #ifndef _SYS_QUEUE_H_
  18 #include <sys/queue.h>
  19 #endif
  20 #ifndef _SYS_SYSTIMER_H_
  21 #include <sys/systimer.h>
  22 #endif
  23
  24 struct iosched_data {
  25     size_t      iorbytes;
  26     size_t      iowbytes;
  27     int         lastticks;      /* decay last recorded */
  28 };
  29
  30 #endif  /* _KERNEL || _KERNEL_STRUCTURES */
  31
  32 #ifdef _KERNEL
  33
  34 struct thread;
  35 void    bwillwrite(int bytes);
  36 void    bwillread(int bytes);
  37 void    bwillinode(int count);
  38 void    biosched_done(struct thread *td);
  39
  40 #endif
  41
  42 #endif
  43