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path: root/drivers/md/raid5.c
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Diffstat (limited to 'drivers/md/raid5.c')
-rw-r--r--drivers/md/raid5.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 01c55f24ab09..7e2bbcfef325 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -7731,7 +7731,8 @@ static struct r5conf *setup_conf(struct mddev *mddev)
}
sprintf(pers_name, "raid%d", mddev->new_level);
- conf->thread = md_register_thread(raid5d, mddev, pers_name);
+ rcu_assign_pointer(conf->thread,
+ md_register_thread(raid5d, mddev, pers_name));
if (!conf->thread) {
pr_warn("md/raid:%s: couldn't allocate thread.\n",
mdname(mddev));
@@ -7954,8 +7955,8 @@ static int raid5_run(struct mddev *mddev)
}
conf->min_offset_diff = min_offset_diff;
- mddev->thread = conf->thread;
- conf->thread = NULL;
+ rcu_assign_pointer(mddev->thread, conf->thread);
+ rcu_assign_pointer(conf->thread, NULL);
mddev->private = conf;
for (i = 0; i < conf->raid_disks && conf->previous_raid_disks;
@@ -8052,8 +8053,8 @@ static int raid5_run(struct mddev *mddev)
clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
- mddev->sync_thread = md_register_thread(md_do_sync, mddev,
- "reshape");
+ rcu_assign_pointer(mddev->sync_thread,
+ md_register_thread(md_do_sync, mddev, "reshape"));
if (!mddev->sync_thread)
goto abort;
}
@@ -8631,8 +8632,8 @@ static int raid5_start_reshape(struct mddev *mddev)
clear_bit(MD_RECOVERY_DONE, &mddev->recovery);
set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
- mddev->sync_thread = md_register_thread(md_do_sync, mddev,
- "reshape");
+ rcu_assign_pointer(mddev->sync_thread,
+ md_register_thread(md_do_sync, mddev, "reshape"));
if (!mddev->sync_thread) {
mddev->recovery = 0;
spin_lock_irq(&conf->device_lock);