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md: have raid0 report its formation 

Report to the user what are the raid zones

Signed-off-by: raziebe@gmail.com
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
raz ben yehuda 2009-06-16 17:00:54 +10:00 committed by NeilBrown
parent 1b9614291e
commit 46994191ae
1 changed files with 33 additions and 0 deletions
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33
drivers/md/raid0.c
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@ -52,6 +52,38 @@ static int raid0_congested(void *data, int bits)
return ret;
}
/*
* inform the user of the raid configuration
*/
static void dump_zones(mddev_t *mddev)
{
int j, k, h;
sector_t zone_size = 0;
sector_t zone_start = 0;
char b[BDEVNAME_SIZE];
raid0_conf_t *conf = mddev->private;
printk(KERN_INFO "******* %s configuration *********\n",
mdname(mddev));
h = 0;
for (j = 0; j < conf->nr_strip_zones; j++) {
printk(KERN_INFO "zone%d=[", j);
for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
printk("%s/",
bdevname(conf->devlist[j*mddev->raid_disks
+ k]->bdev, b));
printk("]\n");
zone_size = conf->strip_zone[j].zone_end - zone_start;
printk(KERN_INFO " zone offset=%llukb "
"device offset=%llukb size=%llukb\n",
(unsigned long long)zone_start>>1,
(unsigned long long)conf->strip_zone[j].dev_start>>1,
(unsigned long long)zone_size>>1);
zone_start = conf->strip_zone[j].zone_end;
}
printk(KERN_INFO "**********************************\n\n");
}
static int create_strip_zones(mddev_t *mddev)
{
int i, c, j, err;
@ -289,6 +321,7 @@ static int raid0_run(mddev_t *mddev)
}
blk_queue_merge_bvec(mddev->queue, raid0_mergeable_bvec);
dump_zones(mddev);
return 0;
}