callo.h

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    1 /*
    2  *  Copyright (C) 2007-2013 Lawrence Livermore National Security, LLC.
    3  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
    4  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
    5  *  UCRL-CODE-235197
    6  *
    7  *  This file is part of the SPL, Solaris Porting Layer.
    8  *
    9  *  The SPL is free software; you can redistribute it and/or modify it
   10  *  under the terms of the GNU General Public License as published by the
   11  *  Free Software Foundation; either version 2 of the License, or (at your
   12  *  option) any later version.
   13  *
   14  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
   15  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   16  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   17  *  for more details.
   18  *
   19  *  You should have received a copy of the GNU General Public License along
   20  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
   21  */
   22 
   23 #ifndef _SPL_CALLO_H
   24 #define _SPL_CALLO_H
   25 
   26 /*
   27  * Callout flags:
   28  *
   29  * CALLOUT_FLAG_ROUNDUP
   30  *      Roundup the expiration time to the next resolution boundary.
   31  *      If this flag is not specified, the expiration time is rounded down.
   32  * CALLOUT_FLAG_ABSOLUTE
   33  *      Normally, the expiration passed to the timeout API functions is an
   34  *      expiration interval. If this flag is specified, then it is
   35  *      interpreted as the expiration time itself.
   36  * CALLOUT_FLAG_HRESTIME
   37  *      Normally, callouts are not affected by changes to system time
   38  *      (hrestime). This flag is used to create a callout that is affected
   39  *      by system time. If system time changes, these timers must be
   40  *      handled in a special way (see callout.c). These are used by condition
   41  *      variables and LWP timers that need this behavior.
   42  * CALLOUT_FLAG_32BIT
   43  *      Legacy interfaces timeout() and realtime_timeout() pass this flag
   44  *      to timeout_generic() to indicate that a 32-bit ID should be allocated.
   45  */
   46 #define CALLOUT_FLAG_ROUNDUP            0x1
   47 #define CALLOUT_FLAG_ABSOLUTE           0x2
   48 #define CALLOUT_FLAG_HRESTIME           0x4
   49 #define CALLOUT_FLAG_32BIT              0x8
   50 
   51 #endif  /* _SPL_CALLB_H */

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FreeBSD/Linux Kernel Cross Reference sys/contrib/openzfs/include/os/linux/spl/sys/callo.h

FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/linux/spl/sys/callo.h