g_linux_lvm.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2008 Andrew Thompson <thompsa@FreeBSD.org>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 
   31 #define G_LLVM_DEBUG(lvl, ...) \
   32     _GEOM_DEBUG("GEOM_LINUX_LVM", g_llvm_debug, (lvl), NULL, __VA_ARGS__)
   33 
   34 #define G_LLVM_CLASS_NAME       "LINUX_LVM"
   35 #define G_LLVM_NAMELEN          128
   36 #define G_LLVM_UUIDLEN          40
   37 #define G_LLVM_MAGIC            "\040\114\126\115\062\040\170\133" \
   38                                 "\065\101\045\162\060\116\052\076"
   39 
   40 struct g_llvm_label {
   41         uint64_t        ll_sector;
   42         uint32_t        ll_crc;
   43         uint32_t        ll_offset;
   44         char            ll_uuid[G_LLVM_UUIDLEN];
   45         uint64_t        ll_size;
   46         uint64_t        ll_pestart;
   47         uint64_t        ll_md_offset;
   48         uint64_t        ll_md_size;
   49 };
   50 
   51 struct g_llvm_metadata {
   52         uint32_t                md_csum;
   53         uint32_t                md_version;
   54         uint64_t                md_start;
   55         uint64_t                md_size;
   56         uint64_t                md_reloffset;
   57         uint64_t                md_relsize;
   58         struct g_llvm_vg        *md_vg;
   59 };
   60 
   61 struct g_llvm_lv {
   62         LIST_ENTRY(g_llvm_lv)   lv_next;
   63         struct g_llvm_vg        *lv_vg;
   64         char                    lv_name[G_LLVM_NAMELEN];
   65         char                    lv_uuid[G_LLVM_UUIDLEN];
   66         int                     lv_sgcount;
   67         int                     lv_sgactive;
   68         struct g_provider       *lv_gprov;
   69         int                     lv_extentcount;
   70         LIST_HEAD(, g_llvm_segment) lv_segs;
   71         int                     lv_numsegs;
   72         struct g_llvm_segment   *lv_firstsg;
   73 };
   74 
   75 struct g_llvm_pv {
   76         LIST_ENTRY(g_llvm_pv)   pv_next;
   77         struct g_llvm_vg        *pv_vg;
   78         char                    pv_name[G_LLVM_NAMELEN];
   79         char                    pv_uuid[G_LLVM_UUIDLEN];
   80         size_t                  pv_size;
   81         off_t                   pv_start;
   82         int                     pv_count;
   83         struct g_provider       *pv_gprov;
   84         struct g_consumer       *pv_gcons;
   85 };
   86 
   87 struct g_llvm_segment {
   88         LIST_ENTRY(g_llvm_segment)      sg_next;
   89         int                     sg_start;
   90         int                     sg_end;
   91         int                     sg_count;
   92         char                    sg_pvname[G_LLVM_NAMELEN];
   93         struct g_llvm_pv        *sg_pv;
   94         int                     sg_pvstart;
   95         off_t                   sg_pvoffset;
   96 };
   97 
   98 struct g_llvm_vg {
   99         LIST_ENTRY(g_llvm_vg)   vg_next;
  100         char                    vg_name[G_LLVM_NAMELEN];
  101         char                    vg_uuid[G_LLVM_UUIDLEN];
  102         size_t                  vg_extentsize;
  103         int                     vg_sectorsize;
  104         struct g_geom           *vg_geom;
  105         LIST_HEAD(, g_llvm_pv)  vg_pvs;
  106         LIST_HEAD(, g_llvm_lv)  vg_lvs;
  107 };

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FreeBSD/Linux Kernel Cross Reference sys/geom/linux_lvm/g_linux_lvm.h

FreeBSD/Linux Kernel Cross Reference
sys/geom/linux_lvm/g_linux_lvm.h