Commit 6b8f9159 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'for-linus-20190125' of git://git.kernel.dk/linux-block 

Pull block fixes from Jens Axboe:
 "A collection of fixes for this release. This contains:

   - Silence sparse rightfully complaining about non-static wbt
     functions (Bart)

   - Fixes for the zoned comments/ioctl documentation (Damien)

   - direct-io fix that's been lingering for a while (Ernesto)

   - cgroup writeback fix (Tejun)

   - Set of NVMe patches for nvme-rdma/tcp (Sagi, Hannes, Raju)

   - Block recursion tracking fix (Ming)

   - Fix debugfs command flag naming for a few flags (Jianchao)"

* tag 'for-linus-20190125' of git://git.kernel.dk/linux-block:
  block: Fix comment typo
  uapi: fix ioctl documentation
  blk-wbt: Declare local functions static
  blk-mq: fix the cmd_flag_name array
  nvme-multipath: drop optimization for static ANA group IDs
  nvmet-rdma: fix null dereference under heavy load
  nvme-rdma: rework queue maps handling
  nvme-tcp: fix timeout handler
  nvme-rdma: fix timeout handler
  writeback: synchronize sync(2) against cgroup writeback membership switches
  block: cover another queue enter recursion via BIO_QUEUE_ENTERED
  direct-io: allow direct writes to empty inodes
parents ba606975 8367de2c

block/blk-core.c

+11 −0
Original line number Diff line number Diff line
@@ -1083,7 +1083,18 @@ blk_qc_t generic_make_request(struct bio *bio) 
			/* Create a fresh bio_list for all subordinate requests */

			bio_list_on_stack[1] = bio_list_on_stack[0];

			bio_list_init(&bio_list_on_stack[0]);



			/*

			 * Since we're recursing into make_request here, ensure

			 * that we mark this bio as already having entered the queue.

			 * If not, and the queue is going away, we can get stuck

			 * forever on waiting for the queue reference to drop. But

			 * that will never happen, as we're already holding a

			 * reference to it.

			 */

			bio_set_flag(bio, BIO_QUEUE_ENTERED);

			ret = q->make_request_fn(q, bio);

			bio_clear_flag(bio, BIO_QUEUE_ENTERED);



			/* sort new bios into those for a lower level

			 * and those for the same level

block/blk-merge.c

+0 −10
Original line number Diff line number Diff line
@@ -272,16 +272,6 @@ void blk_queue_split(struct request_queue *q, struct bio **bio) 
		/* there isn't chance to merge the splitted bio */

		split->bi_opf |= REQ_NOMERGE;



		/*

		 * Since we're recursing into make_request here, ensure

		 * that we mark this bio as already having entered the queue.

		 * If not, and the queue is going away, we can get stuck

		 * forever on waiting for the queue reference to drop. But

		 * that will never happen, as we're already holding a

		 * reference to it.

		 */

		bio_set_flag(*bio, BIO_QUEUE_ENTERED);



		bio_chain(split, *bio);

		trace_block_split(q, split, (*bio)->bi_iter.bi_sector);

		generic_make_request(*bio);

block/blk-mq-debugfs.c

+2 −1
Original line number Diff line number Diff line
@@ -308,8 +308,9 @@ static const char *const cmd_flag_name[] = { 
	CMD_FLAG_NAME(PREFLUSH),

	CMD_FLAG_NAME(RAHEAD),

	CMD_FLAG_NAME(BACKGROUND),

	CMD_FLAG_NAME(NOUNMAP),

	CMD_FLAG_NAME(NOWAIT),

	CMD_FLAG_NAME(NOUNMAP),

	CMD_FLAG_NAME(HIPRI),

};

#undef CMD_FLAG_NAME

block/blk-wbt.c

+2 −2
Original line number Diff line number Diff line
@@ -597,7 +597,7 @@ static void wbt_track(struct rq_qos *rqos, struct request *rq, struct bio *bio) 
	rq->wbt_flags |= bio_to_wbt_flags(rwb, bio);

}



void wbt_issue(struct rq_qos *rqos, struct request *rq)

static void wbt_issue(struct rq_qos *rqos, struct request *rq)

{

	struct rq_wb *rwb = RQWB(rqos);
@@ -617,7 +617,7 @@ void wbt_issue(struct rq_qos *rqos, struct request *rq) 
	}

}



void wbt_requeue(struct rq_qos *rqos, struct request *rq)

static void wbt_requeue(struct rq_qos *rqos, struct request *rq)

{

	struct rq_wb *rwb = RQWB(rqos);

	if (!rwb_enabled(rwb))

drivers/nvme/host/multipath.c

+1 −2
Original line number Diff line number Diff line
@@ -545,7 +545,6 @@ int nvme_mpath_init(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) 
	timer_setup(&ctrl->anatt_timer, nvme_anatt_timeout, 0);

	ctrl->ana_log_size = sizeof(struct nvme_ana_rsp_hdr) +

		ctrl->nanagrpid * sizeof(struct nvme_ana_group_desc);

	if (!(ctrl->anacap & (1 << 6)))

	ctrl->ana_log_size += ctrl->max_namespaces * sizeof(__le32);



	if (ctrl->ana_log_size > ctrl->max_hw_sectors << SECTOR_SHIFT) {

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