include/linux/wait_compat.h

   1 /*
   2  *  Copyright (C) 2007-2014 Lawrence Livermore National Security, LLC.
   3  *  Copyright (C) 2007 The Regents of the University of California.
   4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   6  *  UCRL-CODE-235197
   7  *
   8  *  This file is part of the SPL, Solaris Porting Layer.
   9  *  For details, see <http://zfsonlinux.org/>.
  10  *
  11  *  The SPL is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  *
  16  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19  *  for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along
  22  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25 #ifndef _SPL_WAIT_COMPAT_H
  26 #define _SPL_WAIT_COMPAT_H
  27
  28 #include <linux/sched.h>
  29 #include <linux/wait.h>
  30
  31 #ifndef HAVE_WAIT_ON_BIT_ACTION
  32 #define spl_wait_on_bit(word, bit, mode)        wait_on_bit(word, bit, mode)
  33 #else
  34
  35 static inline int
  36 spl_bit_wait(void *word)
  37 {
  38         schedule();
  39         return (0);
  40 }
  41
  42 #define spl_wait_on_bit(word, bit, mode)                \
  43         wait_on_bit(word, bit, spl_bit_wait, mode)
  44
  45 #endif /* HAVE_WAIT_ON_BIT_ACTION */
  46
  47 #ifdef HAVE_WAIT_QUEUE_ENTRY_T
  48 typedef wait_queue_head_t       spl_wait_queue_head_t;
  49 typedef wait_queue_entry_t      spl_wait_queue_entry_t;
  50 #else
  51 typedef wait_queue_head_t       spl_wait_queue_head_t;
  52 typedef wait_queue_t            spl_wait_queue_entry_t;
  53 #endif
  54
  55 #endif /* SPL_WAIT_COMPAT_H */