Revert "block: fix accounting bug on cross partition merges"
This reverts commit 7681bfeeccff5efa9eb29bf09249a3c400b15327.
Conflicts:
include/linux/genhd.h
It has numerous issues with the cleanup path and non-elevator
devices. Revert it for now so we can come up with a clean
version without rushing things.
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 0a2fd8a..77b7c26 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -351,7 +351,7 @@
int cpu;
cpu = part_stat_lock();
- part = req->part;
+ part = disk_map_sector_rcu(req->rq_disk, blk_rq_pos(req));
part_round_stats(cpu, part);
part_dec_in_flight(part, rq_data_dir(req));