dkio.h

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    1 /*
    2  *  Copyright (C) 2007-2010 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  *
   10  *  The SPL is free software; you can redistribute it and/or modify it
   11  *  under the terms of the GNU General Public License as published by the
   12  *  Free Software Foundation; either version 2 of the License, or (at your
   13  *  option) any later version.
   14  *
   15  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
   16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   17  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   18  *  for more details.
   19  *
   20  *  You should have received a copy of the GNU General Public License along
   21  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
   22  */
   23 
   24 #ifndef _SPL_DKIO_H
   25 #define _SPL_DKIO_H
   26 
   27 #define DFL_SZ(num_exts) \
   28         (sizeof (dkioc_free_list_t) + (num_exts - 1) * 16)
   29 
   30 #define DKIOC           (0x04 << 8)
   31 #define DKIOCFLUSHWRITECACHE    (DKIOC|34)      /* flush cache to phys medium */
   32 
   33 /*
   34  * ioctl to free space (e.g. SCSI UNMAP) off a disk.
   35  * Pass a dkioc_free_list_t containing a list of extents to be freed.
   36  */
   37 #define DKIOCFREE       (DKIOC|50)
   38 
   39 #endif /* _SPL_DKIO_H */

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

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