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Diffstat (limited to 'include/linux/raid/md_k.h')
-rw-r--r--include/linux/raid/md_k.h22
1 files changed, 21 insertions, 1 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index c9a0d4013be..8c14ba565a4 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -15,6 +15,9 @@
#ifndef _MD_K_H
#define _MD_K_H
+/* and dm-bio-list.h is not under include/linux because.... ??? */
+#include "../../../drivers/md/dm-bio-list.h"
+
#define MD_RESERVED 0UL
#define LINEAR 1UL
#define RAID0 2UL
@@ -180,6 +183,10 @@ struct mdk_rdev_s
int desc_nr; /* descriptor index in the superblock */
int raid_disk; /* role of device in array */
+ int saved_raid_disk; /* role that device used to have in the
+ * array and could again if we did a partial
+ * resync from the bitmap
+ */
atomic_t nr_pending; /* number of pending requests.
* only maintained for arrays that
@@ -252,6 +259,11 @@ struct mddev_s
atomic_t recovery_active; /* blocks scheduled, but not written */
wait_queue_head_t recovery_wait;
sector_t recovery_cp;
+
+ spinlock_t write_lock;
+ wait_queue_head_t sb_wait; /* for waiting on superblock updates */
+ atomic_t pending_writes; /* number of active superblock writes */
+
unsigned int safemode; /* if set, update "clean" superblock
* when no writes pending.
*/
@@ -260,6 +272,13 @@ struct mddev_s
atomic_t writes_pending;
request_queue_t *queue; /* for plugging ... */
+ struct bitmap *bitmap; /* the bitmap for the device */
+ struct file *bitmap_file; /* the bitmap file */
+ long bitmap_offset; /* offset from superblock of
+ * start of bitmap. May be
+ * negative, but not '0'
+ */
+
struct list_head all_mddevs;
};
@@ -291,7 +310,7 @@ struct mdk_personality_s
int (*hot_add_disk) (mddev_t *mddev, mdk_rdev_t *rdev);
int (*hot_remove_disk) (mddev_t *mddev, int number);
int (*spare_active) (mddev_t *mddev);
- int (*sync_request)(mddev_t *mddev, sector_t sector_nr, int go_faster);
+ sector_t (*sync_request)(mddev_t *mddev, sector_t sector_nr, int *skipped, int go_faster);
int (*resize) (mddev_t *mddev, sector_t sectors);
int (*reshape) (mddev_t *mddev, int raid_disks);
int (*reconfig) (mddev_t *mddev, int layout, int chunk_size);
@@ -334,6 +353,7 @@ typedef struct mdk_thread_s {
unsigned long flags;
struct completion *event;
struct task_struct *tsk;
+ unsigned long timeout;
const char *name;
} mdk_thread_t;