Commit be07e14f authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

blk-wbt: don't throttle discard or write zeroes 



Both of these are metadata only commands that are not issued by the
writeback code and not directly relevant to the writeback bandwith.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent a897b666

block/blk-wbt.c

+2 −3
Original line number Diff line number Diff line
@@ -575,10 +575,9 @@ static inline bool wbt_should_throttle(struct rq_wb *rwb, struct bio *bio) 
	const int op = bio_op(bio);



	/*

	 * If not a WRITE (or a discard or write zeroes), do nothing

	 * If not a WRITE, do nothing

	 */

	if (!(op == REQ_OP_WRITE || op == REQ_OP_DISCARD ||

				op == REQ_OP_WRITE_ZEROES))

	if (op != REQ_OP_WRITE)

		return false;



	/*