sys/sys/biotrack.h

   1 /*
   2  * SYS/BIOTRACK.H
   3  *
   4  * $DragonFly: src/sys/sys/biotrack.h,v 1.1 2006/02/17 19:18:07 dillon Exp $
   5  */
   6
   7 #ifndef _SYS_BIOTRACK_H_
   8 #define _SYS_BIOTRACK_H_
   9
  10 /*
  11  * BIO tracking structure - tracks in-progress BIOs
  12  */
  13 struct bio_track {
  14         int     bk_active;      /* I/O's currently in progress */
  15 };
  16
  17 #define bio_track_active(track) ((track)->bk_active)
  18 #define bio_track_ref(track)    atomic_add_int(&(track)->bk_active, 1)
  19
  20 #ifdef _KERNEL
  21
  22 int     bio_track_wait(struct bio_track *track, int slp_flags, int slp_timo);
  23
  24 #endif
  25
  26 #endif