From e1960f8c5cd1420dd2ecf0754a136956246365e7 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 30 Sep 2014 15:24:25 +1000 Subject: md: don't allow "-sync" to be set for device in an active array. If an array is active, devices can be marked 'faulty', but simply removing the 'sync' flag is wrong. That only makes sense for an array which is not active (and is probably only useful for testing anyway). Signed-off-by: NeilBrown --- drivers/md/md.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/md/md.c') diff --git a/drivers/md/md.c b/drivers/md/md.c index 3ca611f..9939122 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2642,10 +2642,12 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len) set_bit(In_sync, &rdev->flags); err = 0; } else if (cmd_match(buf, "-insync") && rdev->raid_disk >= 0) { - clear_bit(In_sync, &rdev->flags); - rdev->saved_raid_disk = rdev->raid_disk; - rdev->raid_disk = -1; - err = 0; + if (rdev->mddev->pers == NULL) { + clear_bit(In_sync, &rdev->flags); + rdev->saved_raid_disk = rdev->raid_disk; + rdev->raid_disk = -1; + err = 0; + } } else if (cmd_match(buf, "write_error")) { set_bit(WriteErrorSeen, &rdev->flags); err = 0; -- cgit v1.1