MD: no sync IO while suspended

Disallow resync I/O while the RAID array is suspended.

Recovery, resync, and metadata I/O should not be allowed while a device is
suspended.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4ea02c6..4fa915a 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7045,7 +7045,6 @@ void md_do_sync(mddev_t *mddev)
 }
 EXPORT_SYMBOL_GPL(md_do_sync);
 
-
 static int remove_and_add_spares(mddev_t *mddev)
 {
        mdk_rdev_t *rdev;
@@ -7157,6 +7156,9 @@ static void reap_sync_thread(mddev_t *mddev)
  */
 void md_check_recovery(mddev_t *mddev)
 {
+       if (mddev->suspended)
+               return;
+
        if (mddev->bitmap)
                bitmap_daemon_work(mddev);