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imsm: implement store_zero_imsm and init_zero_imsm 

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2008-06-16 15:36:40 -07:00
parent 4a04ec6ca1
commit 551c80c1c1
1 changed files with 13 additions and 3 deletions
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16
super-intel.c
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@ -1031,8 +1031,7 @@ static int init_zero_imsm(struct supertype *st, mdu_array_info_t *info,
unsigned long long size, char *name,
char *homehost, int *uuid)
{
printf("%s\n", __FUNCTION__);
st->sb = NULL;
return 0;
}
@ -1269,7 +1268,18 @@ static int write_init_super_imsm(struct supertype *st)
static int store_zero_imsm(struct supertype *st, int fd)
{
printf("%s\n", __FUNCTION__);
unsigned long long dsize;
char buf[512];
get_dev_size(fd, NULL, &dsize);
/* first block is stored on second to last sector of the disk */
if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0)
return 1;
memset(buf, 0, sizeof(buf));
if (write(fd, buf, sizeof(buf)) != sizeof(buf))
return 1;
return 0;
}