libfrog/topology.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6
   7 #ifndef __LIBFROG_TOPOLOGY_H__
   8 #define __LIBFROG_TOPOLOGY_H__
   9
  10 /*
  11  * Device topology information.
  12  */
  13 typedef struct fs_topology {
  14         int     dsunit;         /* stripe unit - data subvolume */
  15         int     dswidth;        /* stripe width - data subvolume */
  16         int     rtswidth;       /* stripe width - rt subvolume */
  17         int     lsectorsize;    /* logical sector size &*/
  18         int     psectorsize;    /* physical sector size */
  19 } fs_topology_t;
  20
  21 extern void
  22 get_topology(
  23         libxfs_init_t           *xi,
  24         struct fs_topology      *ft,
  25         int                     force_overwrite);
  26
  27 extern void
  28 calc_default_ag_geometry(
  29         int             blocklog,
  30         uint64_t        dblocks,
  31         int             multidisk,
  32         uint64_t        *agsize,
  33         uint64_t        *agcount);
  34
  35 extern int
  36 check_overwrite(
  37         const char      *device);
  38
  39 #endif  /* __LIBFROG_TOPOLOGY_H__ */