[PATCH 3/5] md: Increase the frequency of recording checkpoint of recovery.

[majianpeng <majianpeng@gmail.com>]

With the hard disk capacity of larger,the entire recovery process
becomes longer.So it should increase the frequency.
Supposed the speed of recovery is 100MB/s(i think for HDD is good).
The total time of recovery 4TB hdd is about 666 minutes.So change the
frequency from 16 to 64 times,it's about 10mins.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
---
 drivers/md/md.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 01e25bd..ba328ee 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7446,7 +7446,7 @@ void md_do_sync(struct md_thread *thread)
 		if (!test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
 		    ((mddev->curr_resync > mddev->curr_resync_completed &&
 		      (mddev->curr_resync - mddev->curr_resync_completed)
-		      > (max_sectors >> 4)) ||
+		      > (max_sectors >> 6)) ||
 		     (j - mddev->curr_resync_completed)*2
 		     >= mddev->resync_max - mddev->curr_resync_completed
 			    )) {
-- 
1.7.9.5