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path: root/drivers/md/raid0.c
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Diffstat (limited to 'drivers/md/raid0.c')
-rw-r--r--drivers/md/raid0.c32
1 files changed, 14 insertions, 18 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index fece3277c2a..d03f99cf4b7 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -113,21 +113,16 @@ static int create_strip_zones (mddev_t *mddev)
}
printk("raid0: FINAL %d zones\n", conf->nr_strip_zones);
- conf->strip_zone = kmalloc(sizeof(struct strip_zone)*
+ conf->strip_zone = kzalloc(sizeof(struct strip_zone)*
conf->nr_strip_zones, GFP_KERNEL);
if (!conf->strip_zone)
return 1;
- conf->devlist = kmalloc(sizeof(mdk_rdev_t*)*
+ conf->devlist = kzalloc(sizeof(mdk_rdev_t*)*
conf->nr_strip_zones*mddev->raid_disks,
GFP_KERNEL);
if (!conf->devlist)
return 1;
- memset(conf->strip_zone, 0,sizeof(struct strip_zone)*
- conf->nr_strip_zones);
- memset(conf->devlist, 0,
- sizeof(mdk_rdev_t*) * conf->nr_strip_zones * mddev->raid_disks);
-
/* The first zone must contain all devices, so here we check that
* there is a proper alignment of slots to devices and find them all
*/
@@ -280,7 +275,11 @@ static int raid0_run (mddev_t *mddev)
mdk_rdev_t *rdev;
struct list_head *tmp;
- printk("%s: setting max_sectors to %d, segment boundary to %d\n",
+ if (mddev->chunk_size == 0) {
+ printk(KERN_ERR "md/raid0: non-zero chunk size required.\n");
+ return -EINVAL;
+ }
+ printk(KERN_INFO "%s: setting max_sectors to %d, segment boundary to %d\n",
mdname(mddev),
mddev->chunk_size >> 9,
(mddev->chunk_size>>1)-1);
@@ -307,9 +306,6 @@ static int raid0_run (mddev_t *mddev)
printk("raid0 : conf->hash_spacing is %llu blocks.\n",
(unsigned long long)conf->hash_spacing);
{
-#if __GNUC__ < 3
- volatile
-#endif
sector_t s = mddev->array_size;
sector_t space = conf->hash_spacing;
int round;
@@ -361,7 +357,7 @@ static int raid0_run (mddev_t *mddev)
* chunksize should be used in that case.
*/
{
- int stripe = mddev->raid_disks * mddev->chunk_size / PAGE_CACHE_SIZE;
+ int stripe = mddev->raid_disks * mddev->chunk_size / PAGE_SIZE;
if (mddev->queue->backing_dev_info.ra_pages < 2* stripe)
mddev->queue->backing_dev_info.ra_pages = 2* stripe;
}
@@ -440,9 +436,6 @@ static int raid0_make_request (request_queue_t *q, struct bio *bio)
{
-#if __GNUC__ < 3
- volatile
-#endif
sector_t x = block >> conf->preshift;
sector_div(x, (u32)conf->hash_spacing);
zone = conf->hash_table[x];
@@ -512,9 +505,10 @@ static void raid0_status (struct seq_file *seq, mddev_t *mddev)
return;
}
-static mdk_personality_t raid0_personality=
+static struct mdk_personality raid0_personality=
{
.name = "raid0",
+ .level = 0,
.owner = THIS_MODULE,
.make_request = raid0_make_request,
.run = raid0_run,
@@ -524,15 +518,17 @@ static mdk_personality_t raid0_personality=
static int __init raid0_init (void)
{
- return register_md_personality (RAID0, &raid0_personality);
+ return register_md_personality (&raid0_personality);
}
static void raid0_exit (void)
{
- unregister_md_personality (RAID0);
+ unregister_md_personality (&raid0_personality);
}
module_init(raid0_init);
module_exit(raid0_exit);
MODULE_LICENSE("GPL");
MODULE_ALIAS("md-personality-2"); /* RAID0 */
+MODULE_ALIAS("md-raid0");
+MODULE_ALIAS("md-level-0");