922 lines
23 KiB
C
922 lines
23 KiB
C
/* raid.c - module to read RAID arrays. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/dl.h>
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#include <grub/disk.h>
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#include <grub/mm.h>
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#include <grub/err.h>
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#include <grub/misc.h>
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#include <grub/raid.h>
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#include <grub/partition.h>
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#ifdef GRUB_UTIL
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#include <grub/util/misc.h>
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#endif
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GRUB_MOD_LICENSE ("GPLv3+");
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/* Linked list of RAID arrays. */
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static struct grub_raid_array *array_list;
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grub_raid5_recover_func_t grub_raid5_recover_func;
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grub_raid6_recover_func_t grub_raid6_recover_func;
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static grub_raid_t grub_raid_list;
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static int inscnt = 0;
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static struct grub_raid_array *
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find_array (const char *name);
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static char
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grub_is_array_readable (struct grub_raid_array *array)
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{
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switch (array->level)
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{
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case 0:
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if (array->nr_devs == array->total_devs)
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return 1;
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break;
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case 1:
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if (array->nr_devs >= 1)
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return 1;
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break;
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case 4:
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case 5:
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case 6:
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case 10:
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{
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unsigned int n;
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if (array->level == 10)
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{
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n = array->layout & 0xFF;
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if (n == 1)
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n = (array->layout >> 8) & 0xFF;
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n--;
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}
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else
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n = array->level / 3;
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if (array->nr_devs >= array->total_devs - n)
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return 1;
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break;
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}
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}
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return 0;
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}
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static grub_err_t
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insert_array (grub_disk_t disk, struct grub_raid_array *new_array,
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grub_disk_addr_t start_sector, const char *scanner_name,
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grub_raid_t raid __attribute__ ((unused)));
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static int scan_depth = 0;
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static void
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scan_devices (const char *arname)
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{
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grub_raid_t raid;
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auto int hook (const char *name);
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int hook (const char *name)
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{
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grub_disk_t disk;
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struct grub_raid_array array;
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struct grub_raid_array *arr;
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grub_disk_addr_t start_sector;
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grub_dprintf ("raid", "Scanning for %s RAID devices on disk %s\n",
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raid->name, name);
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#ifdef GRUB_UTIL
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grub_util_info ("Scanning for %s RAID devices on disk %s",
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raid->name, name);
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#endif
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disk = grub_disk_open (name);
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if (!disk)
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return 0;
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for (arr = array_list; arr != NULL; arr = arr->next)
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{
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struct grub_raid_member *m;
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for (m = arr->members; m < arr->members + arr->nr_devs; m++)
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if (m->device && m->device->id == disk->id
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&& m->device->dev->id == disk->dev->id
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&& grub_partition_get_start (m->device->partition)
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== grub_partition_get_start (disk->partition)
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&& grub_disk_get_size (m->device)
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== grub_disk_get_size (disk))
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{
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grub_disk_close (disk);
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return 0;
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}
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}
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if ((! raid->detect (disk, &array, &start_sector)) &&
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(! insert_array (disk, &array, start_sector, raid->name,
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raid)))
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return 0;
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/* This error usually means it's not raid, no need to display
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it. */
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if (grub_errno != GRUB_ERR_OUT_OF_RANGE)
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grub_print_error ();
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grub_errno = GRUB_ERR_NONE;
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grub_disk_close (disk);
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if (arname && find_array (arname))
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return 1;
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return 0;
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}
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if (scan_depth)
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return;
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scan_depth++;
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for (raid = grub_raid_list; raid; raid = raid->next)
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grub_device_iterate (&hook);
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scan_depth--;
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}
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static int
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grub_raid_iterate (int (*hook) (const char *name),
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grub_disk_pull_t pull)
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{
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struct grub_raid_array *array;
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int islcnt = 0;
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if (pull == GRUB_DISK_PULL_RESCAN)
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{
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islcnt = inscnt;
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scan_devices (NULL);
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}
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if (pull != GRUB_DISK_PULL_NONE && pull != GRUB_DISK_PULL_RESCAN)
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return 0;
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for (array = array_list; array != NULL; array = array->next)
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{
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if (grub_is_array_readable (array) && array->became_readable_at >= islcnt)
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if (hook (array->name))
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return 1;
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}
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return 0;
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}
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#ifdef GRUB_UTIL
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static grub_disk_memberlist_t
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grub_raid_memberlist (grub_disk_t disk)
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{
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struct grub_raid_array *array = disk->data;
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grub_disk_memberlist_t list = NULL, tmp;
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unsigned int i;
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for (i = 0; i < array->total_devs; i++)
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if (array->members[i].device)
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{
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tmp = grub_malloc (sizeof (*tmp));
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tmp->disk = array->members[i].device;
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tmp->next = list;
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list = tmp;
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}
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return list;
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}
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static const char *
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grub_raid_getname (struct grub_disk *disk)
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{
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struct grub_raid_array *array = disk->data;
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return array->driver->name;
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}
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#endif
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static inline int
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ascii2hex (char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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return 0;
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}
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static struct grub_raid_array *
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find_array (const char *name)
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{
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struct grub_raid_array *array;
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if (grub_memcmp (name, "mduuid/", sizeof ("mduuid/") - 1) == 0)
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{
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const char *uuidstr = name + sizeof ("mduuid/") - 1;
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grub_size_t uuid_len = grub_strlen (uuidstr) / 2;
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grub_uint8_t uuidbin[uuid_len];
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unsigned i;
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for (i = 0; i < uuid_len; i++)
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uuidbin[i] = ascii2hex (uuidstr[2 * i + 1])
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| (ascii2hex (uuidstr[2 * i]) << 4);
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for (array = array_list; array != NULL; array = array->next)
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{
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if (uuid_len == (unsigned) array->uuid_len
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&& grub_memcmp (uuidbin, array->uuid, uuid_len) == 0)
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if (grub_is_array_readable (array))
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return array;
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}
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}
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else
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for (array = array_list; array != NULL; array = array->next)
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{
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if (!grub_strcmp (array->name, name))
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if (grub_is_array_readable (array))
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return array;
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}
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return NULL;
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}
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static grub_err_t
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grub_raid_open (const char *name, grub_disk_t disk)
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{
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struct grub_raid_array *array;
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unsigned n;
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if (grub_memcmp (name, "md", sizeof ("md") - 1) != 0)
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return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "unknown RAID device %s",
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name);
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array = find_array (name);
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if (! array)
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{
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scan_devices (name);
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if (grub_errno)
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{
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grub_print_error ();
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grub_errno = GRUB_ERR_NONE;
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}
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array = find_array (name);
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}
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if (!array)
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return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "unknown RAID device %s",
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name);
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disk->id = array->number;
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disk->data = array;
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grub_dprintf ("raid", "%s: total_devs=%d, disk_size=%lld\n", name,
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array->total_devs, (unsigned long long) array->disk_size);
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switch (array->level)
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{
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case 1:
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disk->total_sectors = array->disk_size;
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break;
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case 10:
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n = array->layout & 0xFF;
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if (n == 1)
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n = (array->layout >> 8) & 0xFF;
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disk->total_sectors = grub_divmod64 (array->total_devs *
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array->disk_size,
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n, 0);
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break;
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case 0:
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case 4:
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case 5:
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case 6:
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n = array->level / 3;
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disk->total_sectors = (array->total_devs - n) * array->disk_size;
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break;
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}
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grub_dprintf ("raid", "%s: level=%d, total_sectors=%lld\n", name,
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array->level, (unsigned long long) disk->total_sectors);
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return 0;
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}
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static void
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grub_raid_close (grub_disk_t disk __attribute ((unused)))
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{
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return;
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}
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static grub_err_t
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grub_raid_read (grub_disk_t disk, grub_disk_addr_t sector,
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grub_size_t size, char *buf)
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{
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struct grub_raid_array *array = disk->data;
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grub_err_t err = 0;
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switch (array->level)
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{
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case 0:
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case 1:
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case 10:
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{
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grub_disk_addr_t read_sector, far_ofs;
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grub_uint64_t disknr, b, near, far, ofs;
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read_sector = grub_divmod64 (sector, array->chunk_size, &b);
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far = ofs = near = 1;
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far_ofs = 0;
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if (array->level == 1)
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near = array->total_devs;
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else if (array->level == 10)
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{
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near = array->layout & 0xFF;
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far = (array->layout >> 8) & 0xFF;
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if (array->layout >> 16)
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{
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ofs = far;
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far_ofs = 1;
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}
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else
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far_ofs = grub_divmod64 (array->disk_size,
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far * array->chunk_size, 0);
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far_ofs *= array->chunk_size;
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}
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read_sector = grub_divmod64 (read_sector * near, array->total_devs,
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&disknr);
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ofs *= array->chunk_size;
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read_sector *= ofs;
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while (1)
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{
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grub_size_t read_size;
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unsigned int i, j;
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read_size = array->chunk_size - b;
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if (read_size > size)
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read_size = size;
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for (i = 0; i < near; i++)
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{
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unsigned int k;
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k = disknr;
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for (j = 0; j < far; j++)
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{
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if (array->members[k].device)
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{
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if (grub_errno == GRUB_ERR_READ_ERROR)
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grub_errno = GRUB_ERR_NONE;
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err = grub_disk_read (array->members[k].device,
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array->members[k].start_sector +
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read_sector + j * far_ofs + b,
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0,
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read_size << GRUB_DISK_SECTOR_BITS,
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buf);
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if (! err)
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break;
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else if (err != GRUB_ERR_READ_ERROR)
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return err;
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}
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else
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err = grub_error (GRUB_ERR_READ_ERROR,
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"disk missing");
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k++;
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if (k == array->total_devs)
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k = 0;
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}
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||
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if (! err)
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break;
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disknr++;
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if (disknr == array->total_devs)
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{
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disknr = 0;
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read_sector += ofs;
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}
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}
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if (err)
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return err;
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buf += read_size << GRUB_DISK_SECTOR_BITS;
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size -= read_size;
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if (! size)
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break;
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b = 0;
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disknr += (near - i);
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while (disknr >= array->total_devs)
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{
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disknr -= array->total_devs;
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read_sector += ofs;
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}
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}
|
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break;
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}
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case 4:
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case 5:
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case 6:
|
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{
|
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grub_disk_addr_t read_sector;
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grub_uint64_t b, p, n, disknr, e;
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|
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/* n = 1 for level 4 and 5, 2 for level 6. */
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n = array->level / 3;
|
||
|
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/* Find the first sector to read. */
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read_sector = grub_divmod64 (sector, array->chunk_size, &b);
|
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read_sector = grub_divmod64 (read_sector, array->total_devs - n,
|
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&disknr);
|
||
if (array->level >= 5)
|
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{
|
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grub_divmod64 (read_sector, array->total_devs, &p);
|
||
|
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if (! (array->layout & GRUB_RAID_LAYOUT_RIGHT_MASK))
|
||
p = array->total_devs - 1 - p;
|
||
|
||
if (array->layout & GRUB_RAID_LAYOUT_SYMMETRIC_MASK)
|
||
{
|
||
disknr += p + n;
|
||
}
|
||
else
|
||
{
|
||
grub_uint32_t q;
|
||
|
||
q = p + (n - 1);
|
||
if (q >= array->total_devs)
|
||
q -= array->total_devs;
|
||
|
||
if (disknr >= p)
|
||
disknr += n;
|
||
else if (disknr >= q)
|
||
disknr += q + 1;
|
||
}
|
||
|
||
if (disknr >= array->total_devs)
|
||
disknr -= array->total_devs;
|
||
}
|
||
else
|
||
p = array->total_devs - n;
|
||
|
||
read_sector *= array->chunk_size;
|
||
|
||
while (1)
|
||
{
|
||
grub_size_t read_size;
|
||
int next_level;
|
||
|
||
read_size = array->chunk_size - b;
|
||
if (read_size > size)
|
||
read_size = size;
|
||
|
||
e = 0;
|
||
if (array->members[disknr].device)
|
||
{
|
||
/* Reset read error. */
|
||
if (grub_errno == GRUB_ERR_READ_ERROR)
|
||
grub_errno = GRUB_ERR_NONE;
|
||
|
||
err = grub_disk_read (array->members[disknr].device,
|
||
array->members[disknr].start_sector +
|
||
read_sector + b, 0,
|
||
read_size << GRUB_DISK_SECTOR_BITS,
|
||
buf);
|
||
|
||
if ((err) && (err != GRUB_ERR_READ_ERROR))
|
||
break;
|
||
e++;
|
||
}
|
||
else
|
||
err = GRUB_ERR_READ_ERROR;
|
||
|
||
if (err)
|
||
{
|
||
if (array->nr_devs < array->total_devs - n + e)
|
||
break;
|
||
|
||
grub_errno = GRUB_ERR_NONE;
|
||
if (array->level == 6)
|
||
{
|
||
err = ((grub_raid6_recover_func) ?
|
||
(*grub_raid6_recover_func) (array, disknr, p,
|
||
buf, read_sector + b,
|
||
read_size) :
|
||
grub_error (GRUB_ERR_BAD_DEVICE,
|
||
"raid6rec is not loaded"));
|
||
}
|
||
else
|
||
{
|
||
err = ((grub_raid5_recover_func) ?
|
||
(*grub_raid5_recover_func) (array, disknr,
|
||
buf, read_sector + b,
|
||
read_size) :
|
||
grub_error (GRUB_ERR_BAD_DEVICE,
|
||
"raid5rec is not loaded"));
|
||
}
|
||
|
||
if (err)
|
||
break;
|
||
}
|
||
|
||
buf += read_size << GRUB_DISK_SECTOR_BITS;
|
||
size -= read_size;
|
||
if (! size)
|
||
break;
|
||
|
||
b = 0;
|
||
disknr++;
|
||
|
||
if (array->layout & GRUB_RAID_LAYOUT_SYMMETRIC_MASK)
|
||
{
|
||
if (disknr == array->total_devs)
|
||
disknr = 0;
|
||
|
||
next_level = (disknr == p);
|
||
}
|
||
else
|
||
{
|
||
if (disknr == p)
|
||
disknr += n;
|
||
|
||
next_level = (disknr >= array->total_devs);
|
||
}
|
||
|
||
if (next_level)
|
||
{
|
||
read_sector += array->chunk_size;
|
||
|
||
if (array->level >= 5)
|
||
{
|
||
if (array->layout & GRUB_RAID_LAYOUT_RIGHT_MASK)
|
||
p = (p == array->total_devs - 1) ? 0 : p + 1;
|
||
else
|
||
p = (p == 0) ? array->total_devs - 1 : p - 1;
|
||
|
||
if (array->layout & GRUB_RAID_LAYOUT_SYMMETRIC_MASK)
|
||
{
|
||
disknr = p + n;
|
||
if (disknr >= array->total_devs)
|
||
disknr -= array->total_devs;
|
||
}
|
||
else
|
||
{
|
||
disknr -= array->total_devs;
|
||
if (disknr == p)
|
||
disknr += n;
|
||
}
|
||
}
|
||
else
|
||
disknr = 0;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
return err;
|
||
}
|
||
|
||
static grub_err_t
|
||
grub_raid_write (grub_disk_t disk __attribute ((unused)),
|
||
grub_disk_addr_t sector __attribute ((unused)),
|
||
grub_size_t size __attribute ((unused)),
|
||
const char *buf __attribute ((unused)))
|
||
{
|
||
return GRUB_ERR_NOT_IMPLEMENTED_YET;
|
||
}
|
||
|
||
static grub_err_t
|
||
insert_array (grub_disk_t disk, struct grub_raid_array *new_array,
|
||
grub_disk_addr_t start_sector, const char *scanner_name,
|
||
grub_raid_t raid __attribute__ ((unused)))
|
||
{
|
||
struct grub_raid_array *array = 0, *p;
|
||
int was_readable = 0;
|
||
|
||
/* See whether the device is part of an array we have already seen a
|
||
device from. */
|
||
for (p = array_list; p != NULL; p = p->next)
|
||
if ((p->uuid_len == new_array->uuid_len) &&
|
||
(! grub_memcmp (p->uuid, new_array->uuid, p->uuid_len)))
|
||
{
|
||
grub_free (new_array->uuid);
|
||
array = p;
|
||
|
||
was_readable = grub_is_array_readable (array);
|
||
|
||
/* Do some checks before adding the device to the array. */
|
||
|
||
if (new_array->index >= array->allocated_devs)
|
||
{
|
||
void *tmp;
|
||
unsigned int newnum = 2 * (new_array->index + 1);
|
||
tmp = grub_realloc (array->members, newnum
|
||
* sizeof (array->members[0]));
|
||
if (!tmp)
|
||
return grub_errno;
|
||
array->members = tmp;
|
||
grub_memset (array->members + array->allocated_devs,
|
||
0, (newnum - array->allocated_devs)
|
||
* sizeof (array->members[0]));
|
||
array->allocated_devs = newnum;
|
||
}
|
||
|
||
/* FIXME: Check whether the update time of the superblocks are
|
||
the same. */
|
||
|
||
if (array->total_devs == array->nr_devs)
|
||
/* We found more members of the array than the array
|
||
actually has according to its superblock. This shouldn't
|
||
happen normally. */
|
||
return grub_error (GRUB_ERR_BAD_DEVICE,
|
||
"superfluous RAID member (%d found)",
|
||
array->total_devs);
|
||
|
||
if (array->members[new_array->index].device != NULL)
|
||
/* We found multiple devices with the same number. Again,
|
||
this shouldn't happen. */
|
||
return grub_error (GRUB_ERR_BAD_DEVICE,
|
||
"found two disks with the index %d for RAID %s",
|
||
new_array->index, array->name);
|
||
|
||
if (new_array->disk_size < array->disk_size)
|
||
array->disk_size = new_array->disk_size;
|
||
break;
|
||
}
|
||
|
||
/* Add an array to the list if we didn't find any. */
|
||
if (!array)
|
||
{
|
||
array = grub_malloc (sizeof (*array));
|
||
if (!array)
|
||
{
|
||
grub_free (new_array->uuid);
|
||
return grub_errno;
|
||
}
|
||
|
||
*array = *new_array;
|
||
array->nr_devs = 0;
|
||
#ifdef GRUB_UTIL
|
||
array->driver = raid;
|
||
#endif
|
||
array->allocated_devs = 32;
|
||
if (new_array->index >= array->allocated_devs)
|
||
array->allocated_devs = 2 * (new_array->index + 1);
|
||
|
||
array->members = grub_zalloc (array->allocated_devs
|
||
* sizeof (array->members[0]));
|
||
|
||
if (!array->members)
|
||
{
|
||
grub_free (new_array->uuid);
|
||
return grub_errno;
|
||
}
|
||
|
||
if (! array->name)
|
||
{
|
||
for (p = array_list; p != NULL; p = p->next)
|
||
{
|
||
if (p->number == array->number)
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (array->name || p)
|
||
{
|
||
/* The number is already in use, so we need to find a new one.
|
||
(Or, in the case of named arrays, the array doesn't have its
|
||
own number, but we need one that doesn't clash for use as a key
|
||
in the disk cache. */
|
||
int i = array->name ? 0x40000000 : 0;
|
||
|
||
while (1)
|
||
{
|
||
for (p = array_list; p != NULL; p = p->next)
|
||
{
|
||
if (p->number == i)
|
||
break;
|
||
}
|
||
|
||
if (! p)
|
||
{
|
||
/* We found an unused number. */
|
||
array->number = i;
|
||
break;
|
||
}
|
||
|
||
i++;
|
||
}
|
||
}
|
||
|
||
/* mdraid 1.x superblocks have only a name stored not a number.
|
||
Use it directly as GRUB device. */
|
||
if (! array->name)
|
||
{
|
||
array->name = grub_xasprintf ("md%d", array->number);
|
||
if (! array->name)
|
||
{
|
||
grub_free (array->members);
|
||
grub_free (array->uuid);
|
||
grub_free (array);
|
||
|
||
return grub_errno;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Strip off the homehost if present. */
|
||
char *colon = grub_strchr (array->name, ':');
|
||
char *new_name = grub_xasprintf ("md/%s",
|
||
colon ? colon + 1 : array->name);
|
||
|
||
if (! new_name)
|
||
{
|
||
grub_free (array->members);
|
||
grub_free (array->uuid);
|
||
grub_free (array);
|
||
|
||
return grub_errno;
|
||
}
|
||
|
||
grub_free (array->name);
|
||
array->name = new_name;
|
||
}
|
||
|
||
grub_dprintf ("raid", "Found array %s (%s)\n", array->name,
|
||
scanner_name);
|
||
#ifdef GRUB_UTIL
|
||
grub_util_info ("Found array %s (%s)", array->name,
|
||
scanner_name);
|
||
#endif
|
||
|
||
{
|
||
int max_used_number = 0, len, need_new_name = 0;
|
||
int add_us = 0;
|
||
len = grub_strlen (array->name);
|
||
if (len && grub_isdigit (array->name[len-1]))
|
||
add_us = 1;
|
||
for (p = array_list; p != NULL; p = p->next)
|
||
{
|
||
int cur_num;
|
||
char *num, *end;
|
||
if (grub_strncmp (p->name, array->name, len) != 0)
|
||
continue;
|
||
if (p->name[len] == 0)
|
||
{
|
||
need_new_name = 1;
|
||
continue;
|
||
}
|
||
if (add_us && p->name[len] != '_')
|
||
continue;
|
||
if (add_us)
|
||
num = p->name + len + 1;
|
||
else
|
||
num = p->name + len;
|
||
if (!grub_isdigit (num[0]))
|
||
continue;
|
||
cur_num = grub_strtoull (num, &end, 10);
|
||
if (end[0])
|
||
continue;
|
||
if (cur_num > max_used_number)
|
||
max_used_number = cur_num;
|
||
}
|
||
if (need_new_name)
|
||
{
|
||
char *tmp;
|
||
tmp = grub_xasprintf ("%s%s%d", array->name, add_us ? "_" : "",
|
||
max_used_number + 1);
|
||
if (!tmp)
|
||
return grub_errno;
|
||
grub_free (array->name);
|
||
array->name = tmp;
|
||
}
|
||
}
|
||
|
||
/* Add our new array to the list. */
|
||
array->next = array_list;
|
||
array_list = array;
|
||
|
||
/* RAID 1 doesn't use a chunksize but code assumes one so set
|
||
one. */
|
||
if (array->level == 1)
|
||
array->chunk_size = 64;
|
||
}
|
||
|
||
/* Add the device to the array. */
|
||
array->members[new_array->index].device = disk;
|
||
array->members[new_array->index].start_sector = start_sector;
|
||
array->nr_devs++;
|
||
if (!was_readable && grub_is_array_readable (array))
|
||
array->became_readable_at = inscnt++;
|
||
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
free_array (void)
|
||
{
|
||
struct grub_raid_array *array;
|
||
|
||
array = array_list;
|
||
while (array)
|
||
{
|
||
struct grub_raid_array *p;
|
||
unsigned int i;
|
||
|
||
p = array;
|
||
array = array->next;
|
||
|
||
for (i = 0; i < p->allocated_devs; i++)
|
||
if (p->members[i].device)
|
||
grub_disk_close (p->members[i].device);
|
||
grub_free (p->members);
|
||
|
||
grub_free (p->uuid);
|
||
grub_free (p->name);
|
||
grub_free (p);
|
||
}
|
||
|
||
array_list = 0;
|
||
}
|
||
|
||
void
|
||
grub_raid_register (grub_raid_t raid)
|
||
{
|
||
raid->next = grub_raid_list;
|
||
grub_raid_list = raid;
|
||
}
|
||
|
||
void
|
||
grub_raid_unregister (grub_raid_t raid)
|
||
{
|
||
grub_raid_t *p, q;
|
||
|
||
for (p = &grub_raid_list, q = *p; q; p = &(q->next), q = q->next)
|
||
if (q == raid)
|
||
{
|
||
*p = q->next;
|
||
break;
|
||
}
|
||
}
|
||
|
||
static struct grub_disk_dev grub_raid_dev =
|
||
{
|
||
.name = "raid",
|
||
.id = GRUB_DISK_DEVICE_RAID_ID,
|
||
.iterate = grub_raid_iterate,
|
||
.open = grub_raid_open,
|
||
.close = grub_raid_close,
|
||
.read = grub_raid_read,
|
||
.write = grub_raid_write,
|
||
#ifdef GRUB_UTIL
|
||
.memberlist = grub_raid_memberlist,
|
||
.raidname = grub_raid_getname,
|
||
#endif
|
||
.next = 0
|
||
};
|
||
|
||
|
||
GRUB_MOD_INIT(raid)
|
||
{
|
||
grub_disk_dev_register (&grub_raid_dev);
|
||
}
|
||
|
||
GRUB_MOD_FINI(raid)
|
||
{
|
||
grub_disk_dev_unregister (&grub_raid_dev);
|
||
free_array ();
|
||
}
|