md:Add place to update ->recovery_cp.

In resyncing, recovery_cp only updated when resync aborted or completed.
But in md drives,many place used it to judge.So add a place to update.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 520056a88739..f97083476475 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7462,6 +7462,9 @@ void md_do_sync(struct md_thread *thread)
                         wait_event(mddev->recovery_wait,
                                    atomic_read(&mddev->recovery_active) == 0);
                         mddev->curr_resync_completed = j;
+                        if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) &&
+                            j > mddev->recovery_cp)
+                                mddev->recovery_cp = j;
                         set_bit(MD_CHANGE_CLEAN, &mddev->flags);
                         sysfs_notify(&mddev->kobj, NULL, "sync_completed");
                 }