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

* 'for-linus' of git://neil.brown.name/md:
  md: don't retry recovery of raid1 that fails due to error on source drive.
  md: Allow md devices to be created by name.
  md: make devices disappear when they are no longer needed.
  md: centralise all freeing of an 'mddev' in 'md_free'
  md: move allocation of ->queue from mddev_find to md_probe
  md: need another print_sb for mdp_superblock_1
  md: use list_for_each_entry macro directly
  md: raid0: make hash_spacing and preshift sector-based.
  md: raid0: Represent the size of strip zones in sectors.
  md: raid0 create_strip_zones(): Add KERN_INFO/KERN_ERR to printk's.
  md: raid0 create_strip_zones(): Make two local variables sector-based.
  md: raid0: Represent zone->zone_offset in sectors.
  md: raid0: Represent device offset in sectors.
  md: raid0_make_request(): Replace local variable block by sector.
  md: raid0_make_request(): Remove local variable chunk_size.
  md: raid0_make_request(): Replace chunksize_bits by chunksect_bits.
  md: use sysfs_notify_dirent to notify changes to md/sync_action.
  md: fix bitmap-on-external-file bug.

3 files changed, 20 insertions, 12 deletions

diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 8fc909ef6787..9743e4dbc918 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -137,6 +137,9 @@ struct mddev_s
         struct gendisk                  *gendisk;
 
         struct kobject                  kobj;
+        int                             hold_active;
+#define UNTIL_IOCTL     1
+#define UNTIL_STOP      2
 
         /* Superblock information */
         int                             major_version,
@@ -215,6 +218,9 @@ struct mddev_s
 #define MD_RECOVERY_FROZEN      9
 
         unsigned long                   recovery;
+        int                             recovery_disabled; /* if we detect that recovery
+                                                            * will always fail, set this
+                                                            * so we don't loop trying */
 
         int                             in_sync;        /* know to not need resync */
         struct mutex                    reconfig_mutex;
@@ -244,6 +250,9 @@ struct mddev_s
         struct sysfs_dirent             *sysfs_state;   /* handle for 'array_state'
                                                          * file in sysfs.
                                                          */
+        struct sysfs_dirent             *sysfs_action;  /* handle for 'sync_action' */
+
+        struct work_struct del_work;    /* used for delayed sysfs removal */
 
         spinlock_t                      write_lock;
         wait_queue_head_t               sb_wait;        /* for waiting on superblock updates */
@@ -334,17 +343,14 @@ static inline char * mdname (mddev_t * mddev)
  * iterates through some rdev ringlist. It's safe to remove the
  * current 'rdev'. Dont touch 'tmp' though.
  */
-#define rdev_for_each_list(rdev, tmp, list)                             \
-                                                                        \
-        for ((tmp) = (list).next;                                       \
-                (rdev) = (list_entry((tmp), mdk_rdev_t, same_set)),     \
-                        (tmp) = (tmp)->next, (tmp)->prev != &(list)     \
-                ; )
+#define rdev_for_each_list(rdev, tmp, head)                             \
+        list_for_each_entry_safe(rdev, tmp, head, same_set)
+
 /*
  * iterates through the 'same array disks' ringlist
  */
 #define rdev_for_each(rdev, tmp, mddev)                         \
-        rdev_for_each_list(rdev, tmp, (mddev)->disks)
+        list_for_each_entry_safe(rdev, tmp, &((mddev)->disks), same_set)
 
 #define rdev_for_each_rcu(rdev, mddev)                          \
         list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set)
diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h
index 8b4de4a41ff1..9491026afe66 100644
--- a/include/linux/raid/md_p.h
+++ b/include/linux/raid/md_p.h
@@ -194,6 +194,8 @@ static inline __u64 md_event(mdp_super_t *sb) {
         return (ev<<32)| sb->events_lo;
 }
 
+#define MD_SUPERBLOCK_1_TIME_SEC_MASK ((1ULL<<40) - 1)
+
 /*
  * The version-1 superblock :
  * All numeric fields are little-endian.
diff --git a/include/linux/raid/raid0.h b/include/linux/raid/raid0.h
index 1b2dda035f8e..fd42aa87c391 100644
--- a/include/linux/raid/raid0.h
+++ b/include/linux/raid/raid0.h
@@ -5,9 +5,9 @@
 
 struct strip_zone
 {
-        sector_t zone_offset;   /* Zone offset in md_dev */
-        sector_t dev_offset;    /* Zone offset in real dev */
-        sector_t size;          /* Zone size */
+        sector_t zone_start;    /* Zone offset in md_dev (in sectors) */
+        sector_t dev_start;     /* Zone offset in real dev (in sectors) */
+        sector_t sectors;       /* Zone size in sectors */
         int nb_dev;             /* # of devices attached to the zone */
         mdk_rdev_t **dev;       /* Devices attached to the zone */
 };
@@ -19,8 +19,8 @@ struct raid0_private_data
         mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
         int nr_strip_zones;
 
-        sector_t hash_spacing;
-        int preshift;                   /* shift this before divide by hash_spacing */
+        sector_t spacing;
+        int sector_shift; /* shift this before divide by spacing */
 };
 
 typedef struct raid0_private_data raid0_conf_t;