* it to the count of prereading stripes.
* When write is initiated, or the stripe refcnt == 0 (just in case) we
* clear the PREREAD_ACTIVE flag and decrement the count
- * Whenever the delayed queue is empty and the device is not plugged, we
- * move any strips from delayed to handle and clear the DELAYED flag and set PREREAD_ACTIVE.
+ * Whenever the 'handle' queue is empty and the device is not plugged, we
+ * move any strips from delayed to handle and clear the DELAYED flag and set
+ * PREREAD_ACTIVE.
* In stripe_handle, if we find pre-reading is necessary, we do it if
* PREREAD_ACTIVE is set, else we set DELAYED which will send it to the delayed queue.
* HANDLE gets cleared if stripe_handle leave nothing locked.
struct disk_info *spare;
int chunk_size, level, algorithm;
int max_degraded;
- int raid_disks, working_disks, failed_disks;
+ int raid_disks;
int max_nr_stripes;
/* used during an expand */
struct list_head handle_list; /* stripes needing handling */
struct list_head delayed_list; /* stripes that have plugged requests */
struct list_head bitmap_list; /* stripes delaying awaiting bitmap update */
+ struct bio *retry_read_aligned; /* currently retrying aligned bios */
+ struct bio *retry_read_aligned_list; /* aligned bios retry list */
atomic_t preread_active_stripes; /* stripes with scheduled io */
+ atomic_t active_aligned_reads;
atomic_t reshape_stripes; /* stripes with pending writes for reshape */
/* unfortunately we need two cache names as we temporarily have
*/
int active_name;
char cache_name[2][20];
- kmem_cache_t *slab_cache; /* for allocating stripes */
+ struct kmem_cache *slab_cache; /* for allocating stripes */
int seq_flush, seq_write;
int quiesce;