fs/gfs2/bmap.h

   1 /*
   2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3  * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
   4  *
   5  * This copyrighted material is made available to anyone wishing to use,
   6  * modify, copy, or redistribute it subject to the terms and conditions
   7  * of the GNU General Public License v.2.
   8  */
   9
  10 #ifndef __BMAP_DOT_H__
  11 #define __BMAP_DOT_H__
  12
  13 typedef int (*gfs2_unstuffer_t) (struct gfs2_inode * ip,
  14                                  struct buffer_head * dibh, uint64_t block,
  15                                  void *private);
  16 int gfs2_unstuffer_sync(struct gfs2_inode *ip, struct buffer_head *dibh,
  17                         uint64_t block, void *private);
  18 int gfs2_unstuff_dinode(struct gfs2_inode *ip, gfs2_unstuffer_t unstuffer,
  19                         void *private);
  20
  21 int gfs2_block_map(struct gfs2_inode *ip,
  22                    uint64_t lblock, int *new,
  23                    uint64_t *dblock, uint32_t *extlen);
  24
  25 typedef int (*gfs2_truncator_t) (struct gfs2_inode * ip, uint64_t size);
  26 int gfs2_truncatei(struct gfs2_inode *ip, uint64_t size,
  27                    gfs2_truncator_t truncator);
  28 int gfs2_truncatei_resume(struct gfs2_inode *ip);
  29 int gfs2_file_dealloc(struct gfs2_inode *ip);
  30
  31 void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
  32                             unsigned int *data_blocks,
  33                             unsigned int *ind_blocks);
  34 int gfs2_write_alloc_required(struct gfs2_inode *ip, uint64_t offset,
  35                               unsigned int len, int *alloc_required);
  36
  37 int gfs2_get_file_meta(struct gfs2_inode *ip, struct gfs2_user_buffer *ub);
  38
  39 #endif /* __BMAP_DOT_H__ */