Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: allow extended partitions on md devices.
  md: use sysfs_notify_dirent to notify changes to md/dev-xxx/state
  md: use sysfs_notify_dirent to notify changes to md/array_state

include/linux/raid/md_k.h

@@ -115,6 +115,9 @@ struct mdk_rdev_s
 					   * in superblock.
 					   */
 	struct work_struct del_work;	/* used for delayed sysfs removal */
+
+	struct sysfs_dirent *sysfs_state; /* handle for 'state'
+					   * sysfs entry */
 };
 
 struct mddev_s
@@ -128,7 +131,6 @@ struct mddev_s
 #define MD_CHANGE_DEVS	0	/* Some device status has changed */
 #define MD_CHANGE_CLEAN 1	/* transition to or from 'clean' */
 #define MD_CHANGE_PENDING 2	/* superblock update in progress */
-#define MD_NOTIFY_ARRAY_STATE 3	/* atomic context wants to notify userspace */
 
 	int				ro;
 
@@ -239,6 +241,10 @@ struct mddev_s
 	sector_t			resync_max;	/* resync should pause
 							 * when it gets here */
 
+	struct sysfs_dirent		*sysfs_state;	/* handle for 'array_state'
+							 * file in sysfs.
+							 */
+
 	spinlock_t			write_lock;
 	wait_queue_head_t		sb_wait;	/* for waiting on superblock updates */
 	atomic_t			pending_writes;	/* number of active superblock writes */