[PATCH] Notify sysfs when RAID1 disk is In_sync.

[Adrian Drzewiecki <adriand@vmware.com>]

When RAID1 is done syncing disks, it'll update the state
of synced rdevs to In_sync. But it neglected to notify
sysfs that the attribute changed. So any programs that
are waiting for an rdev's state to change will not be
woken.

Signed-off-by: Adrian Drzewiecki <adriand@vmware.com>
---
 drivers/md/raid1.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a948da8..fe241fc 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1136,6 +1136,7 @@ static int raid1_spare_active(mddev_t *mddev)
                        spin_lock_irqsave(&conf->device_lock, flags);
                        mddev->degraded--;
                        spin_unlock_irqrestore(&conf->device_lock, flags);
+                       sysfs_notify_dirent(rdev->sysfs_state);
                }
        }