summaryrefslogtreecommitdiff
path: root/drivers/md/md.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h23
1 files changed, 6 insertions, 17 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 3931299788dc..112a2c32db0c 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -87,7 +87,6 @@ struct mdk_rdev_s
#define Faulty 1 /* device is known to have a fault */
#define In_sync 2 /* device is in_sync with rest of array */
#define WriteMostly 4 /* Avoid reading if at all possible */
-#define BarriersNotsupp 5 /* REQ_HARDBARRIER is not supported */
#define AllReserved 6 /* If whole device is reserved for
* one array */
#define AutoDetected 7 /* added by auto-detect */
@@ -273,13 +272,6 @@ struct mddev_s
int degraded; /* whether md should consider
* adding a spare
*/
- int barriers_work; /* initialised to true, cleared as soon
- * as a barrier request to slave
- * fails. Only supported
- */
- struct bio *biolist; /* bios that need to be retried
- * because REQ_HARDBARRIER is not supported
- */
atomic_t recovery_active; /* blocks scheduled, but not written */
wait_queue_head_t recovery_wait;
@@ -339,16 +331,13 @@ struct mddev_s
struct attribute_group *to_remove;
struct plug_handle *plug; /* if used by personality */
- /* Generic barrier handling.
- * If there is a pending barrier request, all other
- * writes are blocked while the devices are flushed.
- * The last to finish a flush schedules a worker to
- * submit the barrier request (without the barrier flag),
- * then submit more flush requests.
+ /* Generic flush handling.
+ * The last to finish preflush schedules a worker to submit
+ * the rest of the request (without the REQ_FLUSH flag).
*/
- struct bio *barrier;
+ struct bio *flush_bio;
atomic_t flush_pending;
- struct work_struct barrier_work;
+ struct work_struct flush_work;
struct work_struct event_work; /* used by dm to report failure event */
};
@@ -502,7 +491,7 @@ extern void md_done_sync(mddev_t *mddev, int blocks, int ok);
extern void md_error(mddev_t *mddev, mdk_rdev_t *rdev);
extern int mddev_congested(mddev_t *mddev, int bits);
-extern void md_barrier_request(mddev_t *mddev, struct bio *bio);
+extern void md_flush_request(mddev_t *mddev, struct bio *bio);
extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
sector_t sector, int size, struct page *page);
extern void md_super_wait(mddev_t *mddev);