[PATCH v9 02/10] md: Introduce md_stop_all_writes()

[Bart Van Assche]

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 <bart.vanass...@wdc.com>
Reviewed-by: Johannes Thumshirn <jthumsh...@suse.de>
Reviewed-by: Shaohua Li <s...@kernel.org>
Tested-by: Martin Steigerwald <mar...@lichtvoll.de>
Cc: linux-r...@vger.kernel.org
Cc: Ming Lei <ming....@redhat.com>
Cc: Christoph Hellwig <h...@lst.de>
Cc: Hannes Reinecke <h...@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