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Commit 83838ed8 authored by Andre Noll's avatar Andre Noll Committed by NeilBrown
Browse files

md: raid0: Represent the size of strip zones in sectors. 



This completes the block -> sector conversion of struct strip_zone.

Signed-off-by: default avatarAndre Noll <maan@systemlinux.org>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 0825b87a

drivers/md/raid0.c

+13 −13
Original line number Diff line number Diff line
@@ -156,11 +156,11 @@ static int create_strip_zones (mddev_t *mddev) 
		goto abort;

	}

	zone->nb_dev = cnt;

	zone->size = smallest->size * cnt;

	zone->sectors = smallest->size * cnt * 2;

	zone->zone_start = 0;



	current_start = smallest->size * 2;

	curr_zone_start = zone->size * 2;

	curr_zone_start = zone->sectors;



	/* now do the other zones */

	for (i = 1; i < conf->nr_strip_zones; i++)
@@ -193,12 +193,12 @@ static int create_strip_zones (mddev_t *mddev) 
		}



		zone->nb_dev = c;

		zone->size = (smallest->size - current_start / 2) * c;

		printk(KERN_INFO "raid0: zone->nb_dev: %d, size: %llu\n",

			zone->nb_dev, (unsigned long long)zone->size);

		zone->sectors = (smallest->size * 2 - current_start) * c;

		printk(KERN_INFO "raid0: zone->nb_dev: %d, sectors: %llu\n",

			zone->nb_dev, (unsigned long long)zone->sectors);



		zone->zone_start = curr_zone_start;

		curr_zone_start += zone->size * 2;

		curr_zone_start += zone->sectors;



		current_start = smallest->size * 2;

		printk(KERN_INFO "raid0: current zone start: %llu\n",
@@ -220,7 +220,7 @@ static int create_strip_zones (mddev_t *mddev) 
		sector_t sz = 0;

		for (j=i; j<conf->nr_strip_zones-1 &&

			     sz < min_spacing ; j++)

			sz += conf->strip_zone[j].size;

			sz += conf->strip_zone[j].sectors / 2;

		if (sz >= min_spacing && sz < conf->hash_spacing)

			conf->hash_spacing = sz;

	}
@@ -325,13 +325,13 @@ static int raid0_run (mddev_t *mddev) 
	conf->hash_table = kmalloc (sizeof (struct strip_zone *)*nb_zone, GFP_KERNEL);

	if (!conf->hash_table)

		goto out_free_conf;

	size = conf->strip_zone[cur].size;

	size = conf->strip_zone[cur].sectors / 2;



	conf->hash_table[0] = conf->strip_zone + cur;

	for (i=1; i< nb_zone; i++) {

		while (size <= conf->hash_spacing) {

			cur++;

			size += conf->strip_zone[cur].size;

			size += conf->strip_zone[cur].sectors / 2;

		}

		size -= conf->hash_spacing;

		conf->hash_table[i] = conf->strip_zone + cur;
@@ -440,7 +440,7 @@ static int raid0_make_request (struct request_queue *q, struct bio *bio) 
		zone = conf->hash_table[x];

	}



	while (sector / 2 >= (zone->zone_start / 2 + zone->size))

	while (sector >= zone->zone_start + zone->sectors)

		zone++;



	sect_in_chunk = bio->bi_sector & (chunk_sects - 1);
@@ -495,7 +495,7 @@ static void raid0_status (struct seq_file *seq, mddev_t *mddev) 
		seq_printf(seq, "] zs=%d ds=%d s=%d\n",

				conf->strip_zone[j].zone_start,

				conf->strip_zone[j].dev_start,

				conf->strip_zone[j].size);

				conf->strip_zone[j].sectors);

	}

#endif

	seq_printf(seq, " %dk chunks", mddev->chunk_size/1024);

include/linux/raid/raid0.h

+1 −1
Original line number Diff line number Diff line
@@ -7,7 +7,7 @@ struct strip_zone 
{

	sector_t zone_start;	/* Zone offset in md_dev (in sectors) */

	sector_t dev_start;	/* Zone offset in real dev (in sectors) */

	sector_t size;		/* Zone size */

	sector_t sectors;	/* Zone size in sectors */

	int nb_dev;		/* # of devices attached to the zone */

	mdk_rdev_t **dev;	/* Devices attached to the zone */

};