drbd: The new, smarter resync speed controller
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index fd2cdd4..facb72c 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -928,6 +928,12 @@
WO_bio_barrier
};
+struct fifo_buffer {
+ int *values;
+ unsigned int head_index;
+ unsigned int size;
+};
+
struct drbd_conf {
/* things that are stored as / read from meta data on disk */
unsigned long flags;
@@ -1068,6 +1074,11 @@
u64 ed_uuid; /* UUID of the exposed data */
struct mutex state_mutex;
char congestion_reason; /* Why we where congested... */
+ atomic_t rs_sect_in; /* counter to measure the incoming resync data rate */
+ int c_sync_rate; /* current resync rate after delay_probe magic */
+ struct fifo_buffer rs_plan_s; /* correction values of resync planer */
+ int rs_in_flight; /* resync sectors in flight (to proxy, in proxy and from proxy) */
+ int rs_planed; /* resync sectors already planed */
};
static inline struct drbd_conf *minor_to_mdev(unsigned int minor)
