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Diffstat (limited to 'drivers/md/raid6main.c')
-rw-r--r--drivers/md/raid6main.c43
1 files changed, 21 insertions, 22 deletions
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
index 6437a95..eae5a35 100644
--- a/drivers/md/raid6main.c
+++ b/drivers/md/raid6main.c
@@ -507,19 +507,19 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev)
raid6_conf_t *conf = (raid6_conf_t *) mddev->private;
PRINTK("raid6: error called\n");
- if (!rdev->faulty) {
+ if (!test_bit(Faulty, &rdev->flags)) {
mddev->sb_dirty = 1;
- if (rdev->in_sync) {
+ if (test_bit(In_sync, &rdev->flags)) {
conf->working_disks--;
mddev->degraded++;
conf->failed_disks++;
- rdev->in_sync = 0;
+ clear_bit(In_sync, &rdev->flags);
/*
* if recovery was running, make sure it aborts.
*/
set_bit(MD_RECOVERY_ERR, &mddev->recovery);
}
- rdev->faulty = 1;
+ set_bit(Faulty, &rdev->flags);
printk (KERN_ALERT
"raid6: Disk failure on %s, disabling device."
" Operation continuing on %d devices\n",
@@ -1071,7 +1071,7 @@ static void handle_stripe(struct stripe_head *sh)
}
if (dev->written) written++;
rdev = conf->disks[i].rdev; /* FIXME, should I be looking rdev */
- if (!rdev || !rdev->in_sync) {
+ if (!rdev || !test_bit(In_sync, &rdev->flags)) {
if ( failed < 2 )
failed_num[failed] = i;
failed++;
@@ -1464,8 +1464,8 @@ static void handle_stripe(struct stripe_head *sh)
bi->bi_end_io = raid6_end_read_request;
rcu_read_lock();
- rdev = conf->disks[i].rdev;
- if (rdev && rdev->faulty)
+ rdev = rcu_dereference(conf->disks[i].rdev);
+ if (rdev && test_bit(Faulty, &rdev->flags))
rdev = NULL;
if (rdev)
atomic_inc(&rdev->nr_pending);
@@ -1538,8 +1538,8 @@ static void unplug_slaves(mddev_t *mddev)
rcu_read_lock();
for (i=0; i<mddev->raid_disks; i++) {
- mdk_rdev_t *rdev = conf->disks[i].rdev;
- if (rdev && !rdev->faulty && atomic_read(&rdev->nr_pending)) {
+ mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
+ if (rdev && !test_bit(Faulty, &rdev->flags) && atomic_read(&rdev->nr_pending)) {
request_queue_t *r_queue = bdev_get_queue(rdev->bdev);
atomic_inc(&rdev->nr_pending);
@@ -1583,8 +1583,8 @@ static int raid6_issue_flush(request_queue_t *q, struct gendisk *disk,
rcu_read_lock();
for (i=0; i<mddev->raid_disks && ret == 0; i++) {
- mdk_rdev_t *rdev = conf->disks[i].rdev;
- if (rdev && !rdev->faulty) {
+ mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
+ if (rdev && !test_bit(Faulty, &rdev->flags)) {
struct block_device *bdev = rdev->bdev;
request_queue_t *r_queue = bdev_get_queue(bdev);
@@ -1746,8 +1746,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
/* make sure we don't swamp the stripe cache if someone else
* is trying to get access
*/
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
+ schedule_timeout_uninterruptible(1);
}
bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 0);
spin_lock(&sh->lock);
@@ -1869,7 +1868,7 @@ static int run(mddev_t *mddev)
disk->rdev = rdev;
- if (rdev->in_sync) {
+ if (test_bit(In_sync, &rdev->flags)) {
char b[BDEVNAME_SIZE];
printk(KERN_INFO "raid6: device %s operational as raid"
" disk %d\n", bdevname(rdev->bdev,b),
@@ -2053,7 +2052,7 @@ static void status (struct seq_file *seq, mddev_t *mddev)
for (i = 0; i < conf->raid_disks; i++)
seq_printf (seq, "%s",
conf->disks[i].rdev &&
- conf->disks[i].rdev->in_sync ? "U" : "_");
+ test_bit(In_sync, &conf->disks[i].rdev->flags) ? "U" : "_");
seq_printf (seq, "]");
#if RAID6_DUMPSTATE
seq_printf (seq, "\n");
@@ -2079,7 +2078,7 @@ static void print_raid6_conf (raid6_conf_t *conf)
tmp = conf->disks + i;
if (tmp->rdev)
printk(" disk %d, o:%d, dev:%s\n",
- i, !tmp->rdev->faulty,
+ i, !test_bit(Faulty, &tmp->rdev->flags),
bdevname(tmp->rdev->bdev,b));
}
}
@@ -2093,12 +2092,12 @@ static int raid6_spare_active(mddev_t *mddev)
for (i = 0; i < conf->raid_disks; i++) {
tmp = conf->disks + i;
if (tmp->rdev
- && !tmp->rdev->faulty
- && !tmp->rdev->in_sync) {
+ && !test_bit(Faulty, &tmp->rdev->flags)
+ && !test_bit(In_sync, &tmp->rdev->flags)) {
mddev->degraded--;
conf->failed_disks--;
conf->working_disks++;
- tmp->rdev->in_sync = 1;
+ set_bit(In_sync, &tmp->rdev->flags);
}
}
print_raid6_conf(conf);
@@ -2115,7 +2114,7 @@ static int raid6_remove_disk(mddev_t *mddev, int number)
print_raid6_conf(conf);
rdev = p->rdev;
if (rdev) {
- if (rdev->in_sync ||
+ if (test_bit(In_sync, &rdev->flags) ||
atomic_read(&rdev->nr_pending)) {
err = -EBUSY;
goto abort;
@@ -2150,12 +2149,12 @@ static int raid6_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
*/
for (disk=0; disk < mddev->raid_disks; disk++)
if ((p=conf->disks + disk)->rdev == NULL) {
- rdev->in_sync = 0;
+ clear_bit(In_sync, &rdev->flags);
rdev->raid_disk = disk;
found = 1;
if (rdev->saved_raid_disk != disk)
conf->fullsync = 1;
- p->rdev = rdev;
+ rcu_assign_pointer(p->rdev, rdev);
break;
}
print_raid6_conf(conf);
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