# \[PATCH v8 02/10\] md: Introduce md\_stop\_all\_writes()

- From: Bart Van Assche \<hidden\>
- Date: 2017-10-10 21:03:38 
- List: linux-raid
- Page: https://ratatoskr.run/linux-raid/2017/10/6376879
- Thread: https://ratatoskr.run/linux-block/2017/10/6376848/t.md

```text
Introduce md_stop_all_writes() because the next patch will add
a second caller for this function. This patch does not change
any functionality.

Signed-off-by: Bart Van Assche <redacted>
Reviewed-by: Johannes Thumshirn <redacted>
Cc: Shaohua Li <shli@kernel.org>
Cc: <redacted>
Cc: Ming Lei <redacted>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
---
 drivers/md/md.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8933cafc212d..b99584e5d6b1 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -8937,8 +8937,7 @@ int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
 }
 EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
 
-static int md_notify_reboot(struct notifier_block *this,
-			    unsigned long code, void *x)
+static void md_stop_all_writes(void)
 {
 	struct list_head *tmp;
 	struct mddev *mddev;
@@ -8962,6 +8961,12 @@ static int md_notify_reboot(struct notifier_block *this,
 	 */
 	if (need_delay)
 		mdelay(1000*1);
+}
+
+static int md_notify_reboot(struct notifier_block *this,
+			    unsigned long code, void *x)
+{
+	md_stop_all_writes();
 
 	return NOTIFY_DONE;
 }
-- 
2.14.2

```