[PATCH md-6.14 12/13] md: export some helpers

[Yu Kuai]

From: Yu Kuai <yuku...@huawei.com>

These helpers are used inside md-bitmap.c, prepare to build it as kernel
module first.

Signed-off-by: Yu Kuai <yuku...@huawei.com>
---
 drivers/md/md.c | 15 ++++++---------
 drivers/md/md.h | 10 +++++++++-
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4170ef31a273..f1f70803439d 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -252,6 +252,7 @@ void mddev_create_serial_pool(struct mddev *mddev, struct 
md_rdev *rdev)
                }
        }
 }
+EXPORT_SYMBOL_GPL(mddev_create_serial_pool);
 
 /*
  * Free resource from rdev(s), and destroy serial_info_pool under conditions:
@@ -291,6 +292,7 @@ void mddev_destroy_serial_pool(struct mddev *mddev, struct 
md_rdev *rdev)
                }
        }
 }
+EXPORT_SYMBOL_GPL(mddev_destroy_serial_pool);
 
 static struct ctl_table_header *raid_table_header;
 
@@ -994,15 +996,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev 
*rdev,
        atomic_inc(&mddev->pending_writes);
        submit_bio(bio);
 }
-
-int md_super_wait(struct mddev *mddev)
-{
-       /* wait for all superblock writes that were scheduled to complete */
-       wait_event(mddev->sb_wait, atomic_read(&mddev->pending_writes)==0);
-       if (test_and_clear_bit(MD_SB_NEED_REWRITE, &mddev->sb_flags))
-               return -EAGAIN;
-       return 0;
-}
+EXPORT_SYMBOL_GPL(md_super_write);
 
 int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
                 struct page *page, blk_opf_t opf, bool metadata_op)
@@ -3820,6 +3814,7 @@ int strict_strtoul_scaled(const char *cp, unsigned long 
*res, int scale)
        *res = result * int_pow(10, scale - decimals);
        return 0;
 }
+EXPORT_SYMBOL_GPL(strict_strtoul_scaled);
 
 static ssize_t
 safe_delay_show(struct mddev *mddev, char *page)
@@ -8606,6 +8601,7 @@ int md_setup_cluster(struct mddev *mddev, int nodes)
                mddev->safemode_delay = 0;
        return ret;
 }
+EXPORT_SYMBOL_GPL(md_setup_cluster);
 
 void md_cluster_stop(struct mddev *mddev)
 {
@@ -8614,6 +8610,7 @@ void md_cluster_stop(struct mddev *mddev)
        md_cluster_ops->leave(mddev);
        module_put(md_cluster_mod);
 }
+EXPORT_SYMBOL_GPL(md_cluster_stop);
 
 static int is_mddev_idle(struct mddev *mddev, int init)
 {
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 87edf81c25b0..7e8276d2dadc 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -874,7 +874,6 @@ void md_free_cloned_bio(struct bio *bio);
 extern bool __must_check md_flush_request(struct mddev *mddev, struct bio 
*bio);
 extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
                           sector_t sector, int size, struct page *page);
-extern int md_super_wait(struct mddev *mddev);
 extern int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
                struct page *page, blk_opf_t opf, bool metadata_op);
 extern void md_do_sync(struct md_thread *thread);
@@ -999,6 +998,15 @@ static inline bool mddev_is_dm(struct mddev *mddev)
        return !mddev->gendisk;
 }
 
+static inline int md_super_wait(struct mddev *mddev)
+{
+       /* wait for all superblock writes that were scheduled to complete */
+       wait_event(mddev->sb_wait, atomic_read(&mddev->pending_writes) == 0);
+       if (test_and_clear_bit(MD_SB_NEED_REWRITE, &mddev->sb_flags))
+               return -EAGAIN;
+       return 0;
+}
+
 static inline void mddev_trace_remap(struct mddev *mddev, struct bio *bio,
                sector_t sector)
 {
-- 
2.39.2