summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/linear.c4
-rw-r--r--drivers/md/md.c96
-rw-r--r--drivers/md/md.h2
-rw-r--r--drivers/md/raid0.c41
4 files changed, 71 insertions, 72 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index f2488343ed4a..d5d99290041a 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -139,8 +139,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
mddev->queue->max_sectors > (PAGE_SIZE>>9))
blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
- disk->num_sectors = rdev->size * 2;
- conf->array_sectors += rdev->size * 2;
+ disk->num_sectors = rdev->sectors;
+ conf->array_sectors += rdev->sectors;
cnt++;
}
diff --git a/drivers/md/md.c b/drivers/md/md.c
index be4a131e8c01..07ab6790e29d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -413,7 +413,7 @@ static void free_disk_sb(mdk_rdev_t * rdev)
rdev->sb_loaded = 0;
rdev->sb_page = NULL;
rdev->sb_start = 0;
- rdev->size = 0;
+ rdev->sectors = 0;
}
}
@@ -779,9 +779,9 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
else
ret = 0;
}
- rdev->size = calc_num_sectors(rdev, sb->chunk_size) / 2;
+ rdev->sectors = calc_num_sectors(rdev, sb->chunk_size);
- if (rdev->size < sb->size && sb->level > 1)
+ if (rdev->sectors < sb->size * 2 && sb->level > 1)
/* "this cannot possibly happen" ... */
ret = -EINVAL;
@@ -1184,16 +1184,17 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version)
ret = 0;
}
if (minor_version)
- rdev->size = ((rdev->bdev->bd_inode->i_size>>9) - le64_to_cpu(sb->data_offset)) / 2;
+ rdev->sectors = (rdev->bdev->bd_inode->i_size >> 9) -
+ le64_to_cpu(sb->data_offset);
else
- rdev->size = rdev->sb_start / 2;
- if (rdev->size < le64_to_cpu(sb->data_size)/2)
+ rdev->sectors = rdev->sb_start;
+ if (rdev->sectors < le64_to_cpu(sb->data_size))
return -EINVAL;
- rdev->size = le64_to_cpu(sb->data_size)/2;
+ rdev->sectors = le64_to_cpu(sb->data_size);
if (le32_to_cpu(sb->chunksize))
- rdev->size &= ~((sector_t)le32_to_cpu(sb->chunksize)/2 - 1);
+ rdev->sectors &= ~((sector_t)le32_to_cpu(sb->chunksize) - 1);
- if (le64_to_cpu(sb->size) > rdev->size*2)
+ if (le64_to_cpu(sb->size) > rdev->sectors)
return -EINVAL;
return ret;
}
@@ -1390,7 +1391,7 @@ super_1_rdev_size_change(mdk_rdev_t *rdev, sector_t num_sectors)
sector_t sb_start;
sb_start = (rdev->bdev->bd_inode->i_size >> 9) - 8*2;
sb_start &= ~(sector_t)(4*2 - 1);
- max_sectors = rdev->size * 2 + sb_start - rdev->sb_start;
+ max_sectors = rdev->sectors + sb_start - rdev->sb_start;
if (!num_sectors || num_sectors > max_sectors)
num_sectors = max_sectors;
rdev->sb_start = sb_start;
@@ -1490,9 +1491,9 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
if (find_rdev(mddev, rdev->bdev->bd_dev))
return -EEXIST;
- /* make sure rdev->size exceeds mddev->dev_sectors / 2 */
- if (rdev->size && (mddev->dev_sectors == 0 ||
- rdev->size < mddev->dev_sectors / 2)) {
+ /* make sure rdev->sectors exceeds mddev->dev_sectors */
+ if (rdev->sectors && (mddev->dev_sectors == 0 ||
+ rdev->sectors < mddev->dev_sectors)) {
if (mddev->pers) {
/* Cannot change size, so fail
* If mddev->level <= 0, then we don't care
@@ -1501,7 +1502,7 @@ static int bind_rdev_to_array(mdk_rdev_t * rdev, mddev_t * mddev)
if (mddev->level > 0)
return -ENOSPC;
} else
- mddev->dev_sectors = rdev->size * 2;
+ mddev->dev_sectors = rdev->sectors;
}
/* Verify rdev->desc_nr is unique.
@@ -1757,8 +1758,8 @@ static void print_sb_1(struct mdp_superblock_1 *sb)
static void print_rdev(mdk_rdev_t *rdev, int major_version)
{
char b[BDEVNAME_SIZE];
- printk(KERN_INFO "md: rdev %s, SZ:%08llu F:%d S:%d DN:%u\n",
- bdevname(rdev->bdev,b), (unsigned long long)rdev->size,
+ printk(KERN_INFO "md: rdev %s, Sect:%08llu F:%d S:%d DN:%u\n",
+ bdevname(rdev->bdev, b), (unsigned long long)rdev->sectors,
test_bit(Faulty, &rdev->flags), test_bit(In_sync, &rdev->flags),
rdev->desc_nr);
if (rdev->sb_loaded) {
@@ -2197,7 +2198,7 @@ offset_store(mdk_rdev_t *rdev, const char *buf, size_t len)
return -EINVAL;
if (rdev->mddev->pers && rdev->raid_disk >= 0)
return -EBUSY;
- if (rdev->size && rdev->mddev->external)
+ if (rdev->sectors && rdev->mddev->external)
/* Must set offset before size, so overlap checks
* can be sane */
return -EBUSY;
@@ -2211,7 +2212,7 @@ __ATTR(offset, S_IRUGO|S_IWUSR, offset_show, offset_store);
static ssize_t
rdev_size_show(mdk_rdev_t *rdev, char *page)
{
- return sprintf(page, "%llu\n", (unsigned long long)rdev->size);
+ return sprintf(page, "%llu\n", (unsigned long long)rdev->sectors / 2);
}
static int overlaps(sector_t s1, sector_t l1, sector_t s2, sector_t l2)
@@ -2227,31 +2228,31 @@ static int overlaps(sector_t s1, sector_t l1, sector_t s2, sector_t l2)
static ssize_t
rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
{
- unsigned long long size;
- unsigned long long oldsize = rdev->size;
mddev_t *my_mddev = rdev->mddev;
+ sector_t oldsectors = rdev->sectors;
+ unsigned long long sectors;
- if (strict_strtoull(buf, 10, &size) < 0)
+ if (strict_strtoull(buf, 10, &sectors) < 0)
return -EINVAL;
+ sectors *= 2;
if (my_mddev->pers && rdev->raid_disk >= 0) {
if (my_mddev->persistent) {
- size = super_types[my_mddev->major_version].
- rdev_size_change(rdev, size * 2);
- if (!size)
+ sectors = super_types[my_mddev->major_version].
+ rdev_size_change(rdev, sectors);
+ if (!sectors)
return -EBUSY;
- } else if (!size) {
- size = (rdev->bdev->bd_inode->i_size >> 10);
- size -= rdev->data_offset/2;
- }
+ } else if (!sectors)
+ sectors = (rdev->bdev->bd_inode->i_size >> 9) -
+ rdev->data_offset;
}
- if (size < my_mddev->dev_sectors / 2)
+ if (sectors < my_mddev->dev_sectors)
return -EINVAL; /* component must fit device */
- rdev->size = size;
- if (size > oldsize && my_mddev->external) {
+ rdev->sectors = sectors;
+ if (sectors > oldsectors && my_mddev->external) {
/* need to check that all other rdevs with the same ->bdev
* do not overlap. We need to unlock the mddev to avoid
- * a deadlock. We have already changed rdev->size, and if
+ * a deadlock. We have already changed rdev->sectors, and if
* we have to change it back, we will have the lock again.
*/
mddev_t *mddev;
@@ -2267,9 +2268,9 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
if (test_bit(AllReserved, &rdev2->flags) ||
(rdev->bdev == rdev2->bdev &&
rdev != rdev2 &&
- overlaps(rdev->data_offset, rdev->size * 2,
+ overlaps(rdev->data_offset, rdev->sectors,
rdev2->data_offset,
- rdev2->size * 2))) {
+ rdev2->sectors))) {
overlap = 1;
break;
}
@@ -2283,11 +2284,11 @@ rdev_size_store(mdk_rdev_t *rdev, const char *buf, size_t len)
if (overlap) {
/* Someone else could have slipped in a size
* change here, but doing so is just silly.
- * We put oldsize back because we *know* it is
+ * We put oldsectors back because we *know* it is
* safe, and trust userspace not to race with
* itself
*/
- rdev->size = oldsize;
+ rdev->sectors = oldsectors;
return -EBUSY;
}
}
@@ -3760,13 +3761,13 @@ static int do_md_run(mddev_t * mddev)
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (test_bit(Faulty, &rdev->flags))
continue;
- if (rdev->size < chunk_size / 1024) {
+ if (rdev->sectors < chunk_size / 512) {
printk(KERN_WARNING
"md: Dev %s smaller than chunk_size:"
- " %lluk < %dk\n",
+ " %llu < %d\n",
bdevname(rdev->bdev,b),
- (unsigned long long)rdev->size,
- chunk_size / 1024);
+ (unsigned long long)rdev->sectors,
+ chunk_size / 512);
return -EINVAL;
}
}
@@ -4585,7 +4586,7 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info)
rdev->sb_start = rdev->bdev->bd_inode->i_size / 512;
} else
rdev->sb_start = calc_dev_sboffset(rdev->bdev);
- rdev->size = calc_num_sectors(rdev, mddev->chunk_size) / 2;
+ rdev->sectors = calc_num_sectors(rdev, mddev->chunk_size);
err = bind_rdev_to_array(rdev, mddev);
if (err) {
@@ -4655,7 +4656,7 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev)
else
rdev->sb_start = rdev->bdev->bd_inode->i_size / 512;
- rdev->size = calc_num_sectors(rdev, mddev->chunk_size) / 2;
+ rdev->sectors = calc_num_sectors(rdev, mddev->chunk_size);
if (test_bit(Faulty, &rdev->flags)) {
printk(KERN_WARNING
@@ -4856,8 +4857,7 @@ static int update_size(mddev_t *mddev, sector_t num_sectors)
*/
return -EBUSY;
list_for_each_entry(rdev, &mddev->disks, same_set) {
- sector_t avail;
- avail = rdev->size * 2;
+ sector_t avail = rdev->sectors;
if (fit && (num_sectors == 0 || num_sectors > avail))
num_sectors = avail;
@@ -5585,7 +5585,7 @@ struct mdstat_info {
static int md_seq_show(struct seq_file *seq, void *v)
{
mddev_t *mddev = v;
- sector_t size;
+ sector_t sectors;
mdk_rdev_t *rdev;
struct mdstat_info *mi = seq->private;
struct bitmap *bitmap;
@@ -5621,7 +5621,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
seq_printf(seq, " %s", mddev->pers->name);
}
- size = 0;
+ sectors = 0;
list_for_each_entry(rdev, &mddev->disks, same_set) {
char b[BDEVNAME_SIZE];
seq_printf(seq, " %s[%d]",
@@ -5633,7 +5633,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
continue;
} else if (rdev->raid_disk < 0)
seq_printf(seq, "(S)"); /* spare */
- size += rdev->size;
+ sectors += rdev->sectors;
}
if (!list_empty(&mddev->disks)) {
@@ -5643,7 +5643,7 @@ static int md_seq_show(struct seq_file *seq, void *v)
mddev->array_sectors / 2);
else
seq_printf(seq, "\n %llu blocks",
- (unsigned long long)size);
+ (unsigned long long)sectors / 2);
}
if (mddev->persistent) {
if (mddev->major_version != 0 ||
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 946121236235..c07ea9118063 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -36,7 +36,7 @@ struct mdk_rdev_s
{
struct list_head same_set; /* RAID devices within the same set */
- sector_t size; /* Device size (in blocks) */
+ sector_t sectors; /* Device size (in 512bytes sectors) */
mddev_t *mddev; /* RAID array if running */
int last_events; /* IO event timestamp */
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 3d06df86da87..9aebb4c93b60 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -76,16 +76,15 @@ static int create_strip_zones (mddev_t *mddev)
list_for_each_entry(rdev2, &mddev->disks, same_set) {
printk(KERN_INFO "raid0: comparing %s(%llu)",
bdevname(rdev1->bdev,b),
- (unsigned long long)rdev1->size);
+ (unsigned long long)rdev1->sectors);
printk(KERN_INFO " with %s(%llu)\n",
bdevname(rdev2->bdev,b),
- (unsigned long long)rdev2->size);
+ (unsigned long long)rdev2->sectors);
if (rdev2 == rdev1) {
printk(KERN_INFO "raid0: END\n");
break;
}
- if (rdev2->size == rdev1->size)
- {
+ if (rdev2->sectors == rdev1->sectors) {
/*
* Not unique, don't count it as a new
* group
@@ -148,7 +147,7 @@ static int create_strip_zones (mddev_t *mddev)
mddev->queue->max_sectors > (PAGE_SIZE>>9))
blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
- if (!smallest || (rdev1->size <smallest->size))
+ if (!smallest || (rdev1->sectors < smallest->sectors))
smallest = rdev1;
cnt++;
}
@@ -158,10 +157,10 @@ static int create_strip_zones (mddev_t *mddev)
goto abort;
}
zone->nb_dev = cnt;
- zone->sectors = smallest->size * cnt * 2;
+ zone->sectors = smallest->sectors * cnt;
zone->zone_start = 0;
- current_start = smallest->size * 2;
+ current_start = smallest->sectors;
curr_zone_start = zone->sectors;
/* now do the other zones */
@@ -180,29 +179,29 @@ static int create_strip_zones (mddev_t *mddev)
rdev = conf->strip_zone[0].dev[j];
printk(KERN_INFO "raid0: checking %s ...",
bdevname(rdev->bdev, b));
- if (rdev->size > current_start / 2) {
- printk(KERN_INFO " contained as device %d\n",
- c);
- zone->dev[c] = rdev;
- c++;
- if (!smallest || (rdev->size <smallest->size)) {
- smallest = rdev;
- printk(KERN_INFO " (%llu) is smallest!.\n",
- (unsigned long long)rdev->size);
- }
- } else
+ if (rdev->sectors <= current_start) {
printk(KERN_INFO " nope.\n");
+ continue;
+ }
+ printk(KERN_INFO " contained as device %d\n", c);
+ zone->dev[c] = rdev;
+ c++;
+ if (!smallest || rdev->sectors < smallest->sectors) {
+ smallest = rdev;
+ printk(KERN_INFO " (%llu) is smallest!.\n",
+ (unsigned long long)rdev->sectors);
+ }
}
zone->nb_dev = c;
- zone->sectors = (smallest->size * 2 - current_start) * c;
+ zone->sectors = (smallest->sectors - 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->sectors;
- current_start = smallest->size * 2;
+ current_start = smallest->sectors;
printk(KERN_INFO "raid0: current zone start: %llu\n",
(unsigned long long)current_start);
}
@@ -296,7 +295,7 @@ static int raid0_run (mddev_t *mddev)
/* calculate array device size */
mddev->array_sectors = 0;
list_for_each_entry(rdev, &mddev->disks, same_set)
- mddev->array_sectors += rdev->size * 2;
+ mddev->array_sectors += rdev->sectors;
printk(KERN_INFO "raid0 : md_size is %llu sectors.\n",
(unsigned long long)mddev->array_sectors);