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* disk/dmraid_nvidia.c (grub_dmraid_nv_detect): Add start_sector

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parameter.  Set its pointer target to 0.
* disk/mdraid_linux.c (grub_mdraid_detect): Add start_sector
parameter.  Set its pointer target to 0 for 0.9 metadata, or to the
`data_offset' value from the superblock for 1.x metadata.
* disk/raid.c (grub_raid_read): Offset reads by the start sector of
data on the device.
(insert_array): Record the start sector of data on the device.
(grub_raid_register): Pass start_sector parameters to
grub_raid_list->detect and insert_array.
* include/grub/raid.h (struct grub_raid_array): Add start_sector
member.
(struct grub_raid): Add start_sector parameter to `detect'.
This commit is contained in:
Colin Watson 2010-07-18 18:31:10 +01:00
parent 139ab97dc3
commit 1c785436da
5 changed files with 40 additions and 8 deletions
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15
disk/raid.c
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@ -254,7 +254,8 @@ grub_raid_read (grub_disk_t disk, grub_disk_addr_t sector,
grub_errno = GRUB_ERR_NONE;
err = grub_disk_read (array->device[k],
read_sector + j * far_ofs + b,
array->start_sector[k] +
read_sector + j * far_ofs + b,
0,
read_size << GRUB_DISK_SECTOR_BITS,
buf);
@ -366,7 +367,8 @@ grub_raid_read (grub_disk_t disk, grub_disk_addr_t sector,
grub_errno = GRUB_ERR_NONE;
err = grub_disk_read (array->device[disknr],
read_sector + b, 0,
array->start_sector[disknr] +
read_sector + b, 0,
read_size << GRUB_DISK_SECTOR_BITS,
buf);
@ -475,7 +477,7 @@ grub_raid_write (grub_disk_t disk __attribute ((unused)),
static grub_err_t
insert_array (grub_disk_t disk, struct grub_raid_array *new_array,
const char *scanner_name)
grub_disk_addr_t start_sector, const char *scanner_name)
{
struct grub_raid_array *array = 0, *p;
@ -524,6 +526,7 @@ insert_array (grub_disk_t disk, struct grub_raid_array *new_array,
*array = *new_array;
array->nr_devs = 0;
grub_memset (&array->device, 0, sizeof (array->device));
grub_memset (&array->start_sector, 0, sizeof (array->start_sector));
if (array->name)
goto skip_duplicate_check;
@ -587,6 +590,7 @@ insert_array (grub_disk_t disk, struct grub_raid_array *new_array,
/* Add the device to the array. */
array->device[new_array->index] = disk;
array->start_sector[new_array->index] = start_sector;
array->nr_devs++;
return 0;
@ -628,6 +632,7 @@ grub_raid_register (grub_raid_t raid)
{
grub_disk_t disk;
struct grub_raid_array array;
grub_disk_addr_t start_sector;
grub_dprintf ("raid", "Scanning for RAID devices on disk %s\n", name);
@ -636,8 +641,8 @@ grub_raid_register (grub_raid_t raid)
return 0;
if ((disk->total_sectors != GRUB_ULONG_MAX) &&
(! grub_raid_list->detect (disk, &array)) &&
(! insert_array (disk, &array, grub_raid_list->name)))
(! grub_raid_list->detect (disk, &array, &start_sector)) &&
(! insert_array (disk, &array, start_sector, grub_raid_list->name)))
return 0;
/* This error usually means it's not raid, no need to display