X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;ds=sidebyside;f=include%2Flinux%2Fraid%2Fraid5.h;h=b99d354f6128562e2fd43f5b36049c5c28e757bb;hb=a445685647e825c713175d180ffc8dd54d90589b;hp=20ed4c997636fac9b92aa003a982c5c641d1a45d;hpb=936813a8807c5684c6a97f1081b31027403d4a93;p=linux-2.6-microblaze.git

diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h
index 20ed4c997636..b99d354f6128 100644
--- a/include/linux/raid/raid5.h
+++ b/include/linux/raid/raid5.h
@@ -145,6 +145,22 @@ struct stripe_head {
 		unsigned long	flags;
 	} dev[1]; /* allocated with extra space depending of RAID geometry */
 };
+
+/* stripe_head_state - collects and tracks the dynamic state of a stripe_head
+ *     for handle_stripe.  It is only valid under spin_lock(sh->lock);
+ */
+struct stripe_head_state {
+	int syncing, expanding, expanded;
+	int locked, uptodate, to_read, to_write, failed, written;
+	int non_overwrite;
+	int failed_num;
+};
+
+/* r6_state - extra state data only relevant to r6 */
+struct r6_state {
+	int p_failed, q_failed, qd_idx, failed_num[2];
+};
+
 /* Flags */
 #define	R5_UPTODATE	0	/* page contains current data */
 #define	R5_LOCKED	1	/* IO has been submitted on "req" */
@@ -195,8 +211,9 @@ struct stripe_head {
  * 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.
@@ -213,7 +230,7 @@ struct raid5_private_data {
 	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 */
@@ -226,7 +243,10 @@ struct raid5_private_data {
 	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
@@ -234,7 +254,7 @@ struct raid5_private_data {
 	 */
 	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;