Merge tag 'md-next-20230613' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into for-6.5/block

Pull MD updates from Song:

"The major changes are:

 1. Protect md_thread with rcu, by Yu Kuai;
 2. Various non-urgent raid5 and raid1/10 fixes, by Yu Kuai;
 3. Non-urgent raid10 fixes, by Li Nan."

* tag 'md-next-20230613' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md: (29 commits)
  md/raid1-10: limit the number of plugged bio
  md/raid1-10: don't handle pluged bio by daemon thread
  md/md-bitmap: add a new helper to unplug bitmap asynchrously
  md/raid1-10: submit write io directly if bitmap is not enabled
  md/raid1-10: factor out a helper to submit normal write
  md/raid1-10: factor out a helper to add bio to plug
  md/raid10: prevent soft lockup while flush writes
  md/raid10: fix io loss while replacement replace rdev
  md/raid10: Do not add spare disk when recovery fails
  md/raid10: clean up md_add_new_disk()
  md/raid10: prioritize adding disk to 'removed' mirror
  md/raid10: improve code of mrdev in raid10_sync_request
  md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request
  md/raid5: don't start reshape when recovery or replace is in progress
  md: protect md_thread with rcu
  md/bitmap: factor out a helper to set timeout
  md/bitmap: always wake up md_thread in timeout_store
  dm-raid: remove useless checking in raid_message()
  md: factor out a helper to wake up md_thread directly
  md: fix duplicate filename for rdev
  ...

4 files changed, 25 insertions, 7 deletions

diff --git a/lib/raid6/neon.h b/lib/raid6/neon.h
new file mode 100644
index 000000000000..2ca41ee9b499
--- /dev/null
+++ b/lib/raid6/neon.h
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+void raid6_neon1_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
+void raid6_neon1_xor_syndrome_real(int disks, int start, int stop,
+				    unsigned long bytes, void **ptrs);
+void raid6_neon2_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
+void raid6_neon2_xor_syndrome_real(int disks, int start, int stop,
+				    unsigned long bytes, void **ptrs);
+void raid6_neon4_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
+void raid6_neon4_xor_syndrome_real(int disks, int start, int stop,
+				    unsigned long bytes, void **ptrs);
+void raid6_neon8_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
+void raid6_neon8_xor_syndrome_real(int disks, int start, int stop,
+				    unsigned long bytes, void **ptrs);
+void __raid6_2data_recov_neon(int bytes, uint8_t *p, uint8_t *q, uint8_t *dp,
+			      uint8_t *dq, const uint8_t *pbmul,
+			      const uint8_t *qmul);
+
+void __raid6_datap_recov_neon(int bytes, uint8_t *p, uint8_t *q, uint8_t *dq,
+			      const uint8_t *qmul);
+
+
diff --git a/lib/raid6/neon.uc b/lib/raid6/neon.uc
index b7c68030da4f..355270af0cd6 100644
--- a/lib/raid6/neon.uc
+++ b/lib/raid6/neon.uc
@@ -25,6 +25,7 @@
  */
 
 #include <arm_neon.h>
+#include "neon.h"
 
 typedef uint8x16_t unative_t;
 
diff --git a/lib/raid6/recov_neon.c b/lib/raid6/recov_neon.c
index d6fba8bf8c0a..1bfc14174d4d 100644
--- a/lib/raid6/recov_neon.c
+++ b/lib/raid6/recov_neon.c
@@ -8,6 +8,7 @@
 
 #ifdef __KERNEL__
 #include <asm/neon.h>
+#include "neon.h"
 #else
 #define kernel_neon_begin()
 #define kernel_neon_end()
@@ -19,13 +20,6 @@ static int raid6_has_neon(void)
 	return cpu_has_neon();
 }
 
-void __raid6_2data_recov_neon(int bytes, uint8_t *p, uint8_t *q, uint8_t *dp,
-			      uint8_t *dq, const uint8_t *pbmul,
-			      const uint8_t *qmul);
-
-void __raid6_datap_recov_neon(int bytes, uint8_t *p, uint8_t *q, uint8_t *dq,
-			      const uint8_t *qmul);
-
 static void raid6_2data_recov_neon(int disks, size_t bytes, int faila,
 		int failb, void **ptrs)
 {
diff --git a/lib/raid6/recov_neon_inner.c b/lib/raid6/recov_neon_inner.c
index 90eb80d43790..f9e7e8f5a151 100644
--- a/lib/raid6/recov_neon_inner.c
+++ b/lib/raid6/recov_neon_inner.c
@@ -5,6 +5,7 @@
  */
 
 #include <arm_neon.h>
+#include "neon.h"
 
 #ifdef CONFIG_ARM
 /*