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Commit 46994191 authored by raz ben yehuda's avatar raz ben yehuda Committed by NeilBrown
Browse files

md: have raid0 report its formation 



Report to the user what are the raid zones

Signed-off-by: default avatar <raziebe@gmail.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 1b961429

drivers/md/raid0.c

+33 −0
Original line number Diff line number Diff line
@@ -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;

}