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authorAndre Noll <maan@systemlinux.org>2009-06-16 16:46:48 +1000
committerNeilBrown <neilb@suse.de>2009-06-16 16:46:48 +1000
commit09770e0b6ee649313611a2d6a9b44f456072dbd6 (patch)
tree5387e43652ea177341a1b2029747d827363e3a9d /drivers/md
parentd27a43abd7be0ab4b2337e4587feca8c7340e5f9 (diff)
md: raid0: Remove hash table.
The raid0 hash table has become unused due to the changes in the previous patch. This patch removes the hash table allocation and setup code and kills the hash_table field of struct raid0_private_data. Signed-off-by: Andre Noll <maan@systemlinux.org> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/raid0.c12
-rw-r--r--drivers/md/raid0.h1
2 files changed, 0 insertions, 13 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 1afdfd120bb..d4c9c5d5d7f 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -326,22 +326,14 @@ static int raid0_run (mddev_t *mddev)
nb_zone = s + round;
}
printk(KERN_INFO "raid0 : nb_zone is %d.\n", nb_zone);
-
- printk(KERN_INFO "raid0 : Allocating %zu bytes for hash.\n",
- nb_zone*sizeof(struct strip_zone*));
- conf->hash_table = kmalloc (sizeof (struct strip_zone *)*nb_zone, GFP_KERNEL);
- if (!conf->hash_table)
- goto out_free_conf;
sectors = conf->strip_zone[cur].sectors;
- conf->hash_table[0] = conf->strip_zone + cur;
for (i=1; i< nb_zone; i++) {
while (sectors <= conf->spacing) {
cur++;
sectors += conf->strip_zone[cur].sectors;
}
sectors -= conf->spacing;
- conf->hash_table[i] = conf->strip_zone + cur;
}
if (conf->sector_shift) {
conf->spacing >>= conf->sector_shift;
@@ -384,8 +376,6 @@ static int raid0_stop (mddev_t *mddev)
raid0_conf_t *conf = mddev_to_conf(mddev);
blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
- kfree(conf->hash_table);
- conf->hash_table = NULL;
kfree(conf->strip_zone);
conf->strip_zone = NULL;
kfree(conf);
@@ -494,8 +484,6 @@ static void raid0_status (struct seq_file *seq, mddev_t *mddev)
h = 0;
for (j = 0; j < conf->nr_strip_zones; j++) {
seq_printf(seq, " z%d", j);
- if (conf->hash_table[h] == conf->strip_zone+j)
- seq_printf(seq, "(h%d)", h++);
seq_printf(seq, "=[");
for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
seq_printf(seq, "%s/", bdevname(
diff --git a/drivers/md/raid0.h b/drivers/md/raid0.h
index 556666fec3a..a14630a25aa 100644
--- a/drivers/md/raid0.h
+++ b/drivers/md/raid0.h
@@ -12,7 +12,6 @@ struct strip_zone
struct raid0_private_data
{
- struct strip_zone **hash_table; /* Table of indexes into strip_zone */
struct strip_zone *strip_zone;
mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
int nr_strip_zones;