From 8dee7211467a56b7eb4e4359efb0aa4a72e1b6f3 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 6 Nov 2009 14:59:29 +1100 Subject: [PATCH] md/raid5: make sure curr_sync_completes is uptodate when reshape starts This value is visible through sysfs and is used by mdadm when it manages a reshape (backing up data that is about to be rearranged). So it is important that it is always correct. Current it does not get updated properly when a reshape starts which can cause problems when assembling an array that is in the middle of being reshaped. This is suitable for 2.6.31.y stable kernels. Cc: stable@kernel.org Signed-off-by: NeilBrown --- drivers/md/raid5.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 81abefc..dcce204 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4049,6 +4049,8 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped sector_nr = conf->reshape_progress; sector_div(sector_nr, new_data_disks); if (sector_nr) { + mddev->curr_resync_completed = sector_nr; + sysfs_notify(&mddev->kobj, NULL, "sync_completed"); *skipped = 1; return sector_nr; } -- 2.7.4