md: Improve name of threads created by md_register_thread

The management thread for raid4,5,6 arrays are all called
mdX_raid5, independent of the actual raid level, which is wrong and
can be confusion.

So change md_register_thread to use the name from the personality
unless no alternate name (like 'resync' or 'reshape') is given.

This is simpler and more correct.

Cc: Jinzc <zhenchengjin@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 763dcc40e513..bee3573ed1bd 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4448,7 +4448,7 @@ static raid5_conf_t *setup_conf(mddev_t *mddev)
                 printk(KERN_INFO "raid5: allocated %dkB for %s\n",
                         memory, mdname(mddev));
 
-        conf->thread = md_register_thread(raid5d, mddev, "%s_raid5");
+        conf->thread = md_register_thread(raid5d, mddev, NULL);
         if (!conf->thread) {
                 printk(KERN_ERR
                        "raid5: couldn't allocate thread for %s\n",
@@ -4614,7 +4614,7 @@ static int run(mddev_t *mddev)
                 set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
                 set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
                 mddev->sync_thread = md_register_thread(md_do_sync, mddev,
-                                                        "%s_reshape");
+                                                        "reshape");
         }
 
         /* read-ahead size must cover two whole stripes, which is
@@ -5032,7 +5032,7 @@ static int raid5_start_reshape(mddev_t *mddev)
         set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
         set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
         mddev->sync_thread = md_register_thread(md_do_sync, mddev,
-                                                "%s_reshape");
+                                                "reshape");
         if (!mddev->sync_thread) {
                 mddev->recovery = 0;
                 spin_lock_irq(&conf->device_lock);