* that we are never stopping an array while it is open.
* 'reconfig_mutex' protects all other reconfiguration.
* These locks are separate due to conflicting interactions
- * with bdev->bd_mutex.
+ * with disk->open_mutex.
* Lock ordering is:
- * reconfig_mutex -> bd_mutex
- * bd_mutex -> open_mutex: e.g. __blkdev_get -> md_open
+ * reconfig_mutex -> disk->open_mutex
+ * disk->open_mutex -> open_mutex: e.g. __blkdev_get -> md_open
*/
struct mutex open_mutex;
struct mutex reconfig_mutex;
atomic_t max_corr_read_errors; /* max read retries */
struct list_head all_mddevs;
- struct attribute_group *to_remove;
+ const struct attribute_group *to_remove;
struct bio_set bio_set;
struct bio_set sync_set; /* for sync operations like
* metadata and bitmap writes
*/
- mempool_t md_io_pool;
+ struct bio_set io_acct_set; /* for raid0 and raid5 io accounting */
/* Generic flush handling.
* The last to finish preflush schedules a worker to submit
ssize_t (*show)(struct mddev *, char *);
ssize_t (*store)(struct mddev *, const char *, size_t);
};
-extern struct attribute_group md_bitmap_group;
+extern const struct attribute_group md_bitmap_group;
static inline struct kernfs_node *sysfs_get_dirent_safe(struct kernfs_node *sd, char *name)
{
void *private;
};
+struct md_io_acct {
+ struct bio *orig_bio;
+ unsigned long start_time;
+ struct bio bio_clone;
+};
+
#define THREAD_WAKEUP 0
static inline void safe_put_page(struct page *p)
extern void md_finish_reshape(struct mddev *mddev);
void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev,
struct bio *bio, sector_t start, sector_t size);
+void md_account_bio(struct mddev *mddev, struct bio **bio);
extern bool __must_check md_flush_request(struct mddev *mddev, struct bio *bio);
extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,