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: releng/12.0/sys/geom/linux_lvm/g_linux_lvm.h 326270 2017-11-27 15:17:37Z pfg $
   29  */
   30 
   31 #define G_LLVM_DEBUG(lvl, ...)  do {                                    \
   32         if (g_llvm_debug >= (lvl)) {                                    \
   33                 printf("GEOM_LINUX_LVM");                               \
   34                 if (g_llvm_debug > 0)                                   \
   35                         printf("[%u]", lvl);                            \
   36                 printf(": ");                                           \
   37                 printf(__VA_ARGS__);                                    \
   38                 printf("\n");                                           \
   39         }                                                               \
   40 } while (0)
   41 
   42 #define G_LLVM_CLASS_NAME       "LINUX_LVM"
   43 #define G_LLVM_NAMELEN          128
   44 #define G_LLVM_UUIDLEN          40
   45 #define G_LLVM_MAGIC            "\040\114\126\115\062\040\170\133" \
   46                                 "\065\101\045\162\060\116\052\076"
   47 
   48 struct g_llvm_label {
   49         uint64_t        ll_sector;
   50         uint32_t        ll_crc;
   51         uint32_t        ll_offset;
   52         char            ll_uuid[G_LLVM_UUIDLEN];
   53         uint64_t        ll_size;
   54         uint64_t        ll_pestart;
   55         uint64_t        ll_md_offset;
   56         uint64_t        ll_md_size;
   57 };
   58 
   59 struct g_llvm_metadata {
   60         uint32_t                md_csum;
   61         uint32_t                md_version;
   62         uint64_t                md_start;
   63         uint64_t                md_size;
   64         uint64_t                md_reloffset;
   65         uint64_t                md_relsize;
   66         struct g_llvm_vg        *md_vg;
   67 };
   68 
   69 struct g_llvm_lv {
   70         LIST_ENTRY(g_llvm_lv)   lv_next;
   71         struct g_llvm_vg        *lv_vg;
   72         char                    lv_name[G_LLVM_NAMELEN];
   73         char                    lv_uuid[G_LLVM_UUIDLEN];
   74         int                     lv_sgcount;
   75         int                     lv_sgactive;
   76         struct g_provider       *lv_gprov;
   77         int                     lv_extentcount;
   78         LIST_HEAD(, g_llvm_segment) lv_segs;
   79         int                     lv_numsegs;
   80         struct g_llvm_segment   *lv_firstsg;
   81 };
   82 
   83 struct g_llvm_pv {
   84         LIST_ENTRY(g_llvm_pv)   pv_next;
   85         struct g_llvm_vg        *pv_vg;
   86         char                    pv_name[G_LLVM_NAMELEN];
   87         char                    pv_uuid[G_LLVM_UUIDLEN];
   88         size_t                  pv_size;
   89         off_t                   pv_start;
   90         int                     pv_count;
   91         struct g_provider       *pv_gprov;
   92         struct g_consumer       *pv_gcons;
   93 };
   94 
   95 struct g_llvm_segment {
   96         LIST_ENTRY(g_llvm_segment)      sg_next;
   97         int                     sg_start;
   98         int                     sg_end;
   99         int                     sg_count;
  100         char                    sg_pvname[G_LLVM_NAMELEN];
  101         struct g_llvm_pv        *sg_pv;
  102         int                     sg_pvstart;
  103         off_t                   sg_pvoffset;
  104 };
  105 
  106 struct g_llvm_vg {
  107         LIST_ENTRY(g_llvm_vg)   vg_next;
  108         char                    vg_name[G_LLVM_NAMELEN];
  109         char                    vg_uuid[G_LLVM_UUIDLEN];
  110         size_t                  vg_extentsize;
  111         int                     vg_sectorsize;
  112         struct g_geom           *vg_geom;
  113         LIST_HEAD(, g_llvm_pv)  vg_pvs;
  114         LIST_HEAD(, g_llvm_lv)  vg_lvs;
  115 };

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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