Merge tag 'md-6.15-20250312' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into for-6.15/block

Merge MD changes from Yu:

"- fix recovery can preempt resync (Li Nan)
 - fix md-bitmap IO limit (Su Yue)
 - fix raid10 discard with REQ_NOWAIT (Xiao Ni)
 - fix raid1 memory leak (Zheng Qixing)
 - fix mddev uaf (Yu Kuai)
 - fix raid1,raid10 IO flags (Yu Kuai)
 - some refactor and cleanup (Yu Kuai)"

* tag 'md-6.15-20250312' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
  md/raid10: wait barrier before returning discard request with REQ_NOWAIT
  md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb
  md/raid1,raid10: don't ignore IO flags
  md/raid5: merge reshape_progress checking inside get_reshape_loc()
  md: fix mddev uaf while iterating all_mddevs list
  md: switch md-cluster to use md_submodle_head
  md: don't export md_cluster_ops
  md/md-cluster: cleanup md_cluster_ops reference
  md: switch personalities to use md_submodule_head
  md: introduce struct md_submodule_head and APIs
  md: only include md-cluster.h if necessary
  md: merge common code into find_pers()
  md/raid1: fix memory leak in raid1_run() if no active rdev
  md: ensure resync is prioritized over recovery

1 files changed, 9 insertions, 6 deletions

diff --git a/drivers/md/md-linear.c b/drivers/md/md-linear.c
index 369aed044b40..5d9b08115375 100644
--- a/drivers/md/md-linear.c
+++ b/drivers/md/md-linear.c
@@ -5,7 +5,6 @@
  */
 
 #include <linux/blkdev.h>
-#include <linux/raid/md_u.h>
 #include <linux/seq_file.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -320,9 +319,13 @@ static void linear_quiesce(struct mddev *mddev, int state)
 }
 
 static struct md_personality linear_personality = {
-	.name		= "linear",
-	.level		= LEVEL_LINEAR,
-	.owner		= THIS_MODULE,
+	.head = {
+		.type	= MD_PERSONALITY,
+		.id	= ID_LINEAR,
+		.name	= "linear",
+		.owner	= THIS_MODULE,
+	},
+
 	.make_request	= linear_make_request,
 	.run		= linear_run,
 	.free		= linear_free,
@@ -335,12 +338,12 @@ static struct md_personality linear_personality = {
 
 static int __init linear_init(void)
 {
-	return register_md_personality(&linear_personality);
+	return register_md_submodule(&linear_personality.head);
 }
 
 static void linear_exit(void)
 {
-	unregister_md_personality(&linear_personality);
+	unregister_md_submodule(&linear_personality.head);
 }
 
 module_init(linear_init);