Commit 5a8b4242 authored Jun 14, 2011 by Lars Ellenberg Committed by Philipp Reisner Jun 30, 2011

drbd: account bitmap IO during resync as resync-(related-)-io

If we have a good resync rate, we will frequently update the on-disk
bitmap, which, if not accounted for as resync io, may let an otherwise
idle device appear to be "busy", and cause us to throttle resync.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

parent 8ccee20e

drivers/block/drbd/drbd_bitmap.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -991,6 +991,9 @@ static void bm_page_io_async(struct bm_aio_ctx *ctx, int page_nr, int rw) __must
		bio_endio(bio, -EIO);
		} else {
		submit_bio(rw, bio);
		/* this should not count as user activity and cause the
		* resync to throttle -- see drbd_rs_should_slow_down(). */
		atomic_add(len >> 9, &mdev->rs_sect_ev);
		}
		}