move.h 3.0 KB

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  1. /*
  2. * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
  3. * All Rights Reserved.
  4. *
  5. * This program is free software; you can redistribute it and/or
  6. * modify it under the terms of the GNU General Public License as
  7. * published by the Free Software Foundation.
  8. *
  9. * This program is distributed in the hope that it would be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12. * GNU General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU General Public License
  15. * along with this program; if not, write the Free Software Foundation,
  16. * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  17. *
  18. * Portions Copyright (c) 1982, 1986, 1993, 1994
  19. * The Regents of the University of California. All rights reserved.
  20. *
  21. * Redistribution and use in source and binary forms, with or without
  22. * modification, are permitted provided that the following conditions
  23. * are met:
  24. * 1. Redistributions of source code must retain the above copyright
  25. * notice, this list of conditions and the following disclaimer.
  26. * 2. Redistributions in binary form must reproduce the above copyright
  27. * notice, this list of conditions and the following disclaimer in the
  28. * documentation and/or other materials provided with the distribution.
  29. * 3. Neither the name of the University nor the names of its contributors
  30. * may be used to endorse or promote products derived from this software
  31. * without specific prior written permission.
  32. *
  33. * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  34. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  35. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  36. * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  37. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  41. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  42. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  43. * SUCH DAMAGE.
  44. */
  45. #ifndef __XFS_SUPPORT_MOVE_H__
  46. #define __XFS_SUPPORT_MOVE_H__
  47. #include <linux/uio.h>
  48. #include <asm/uaccess.h>
  49. /* Segment flag values. */
  50. enum uio_seg {
  51. UIO_USERSPACE, /* from user data space */
  52. UIO_SYSSPACE, /* from system space */
  53. };
  54. struct uio {
  55. struct kvec *uio_iov; /* pointer to array of iovecs */
  56. int uio_iovcnt; /* number of iovecs in array */
  57. xfs_off_t uio_offset; /* offset in file this uio corresponds to */
  58. int uio_resid; /* residual i/o count */
  59. enum uio_seg uio_segflg; /* see above */
  60. };
  61. typedef struct uio uio_t;
  62. typedef struct kvec iovec_t;
  63. extern int xfs_uio_read (caddr_t, size_t, uio_t *);
  64. #endif /* __XFS_SUPPORT_MOVE_H__ */