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Commit 1c8df7bd authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

Pull block fixes from Jens Axboe:
 "Three small fixes that have been picked up the last few weeks.
  Specifically:

   - Fix a memory corruption issue in NVMe with malignant user
     constructed request.  From Christoph.

   - Kill (now) unused blk_queue_bio(), dm was changed to not need this
     anymore.  From Mike Snitzer.

   - Always use blk_schedule_flush_plug() from the io_schedule() path
     when flushing a plug, fixing a !TASK_RUNNING warning with md.  From
     Shaohua"

* 'for-linus' of git://git.kernel.dk/linux-block:
  sched: always use blk_schedule_flush_plug in io_schedule_out
  nvme: fix kernel memory corruption with short INQUIRY buffers
  block: remove export for blk_queue_bio
parents a30ec4b3 10d784ea

block/blk-core.c

+3 −2
Original line number Diff line number Diff line
@@ -734,6 +734,8 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id) 
}

EXPORT_SYMBOL(blk_init_queue_node);



static void blk_queue_bio(struct request_queue *q, struct bio *bio);



struct request_queue *

blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,

			 spinlock_t *lock)
@@ -1578,7 +1580,7 @@ void init_request_from_bio(struct request *req, struct bio *bio) 
	blk_rq_bio_prep(req->q, req, bio);

}



void blk_queue_bio(struct request_queue *q, struct bio *bio)

static void blk_queue_bio(struct request_queue *q, struct bio *bio)

{

	const bool sync = !!(bio->bi_rw & REQ_SYNC);

	struct blk_plug *plug;
@@ -1686,7 +1688,6 @@ void blk_queue_bio(struct request_queue *q, struct bio *bio) 
		spin_unlock_irq(q->queue_lock);

	}

}

EXPORT_SYMBOL_GPL(blk_queue_bio);	/* for device mapper only */



/*

 * If bio->bi_dev is a partition, remap the location

drivers/block/nvme-scsi.c

+2 −1
Original line number Diff line number Diff line
@@ -2257,7 +2257,8 @@ static int nvme_trans_inquiry(struct nvme_ns *ns, struct sg_io_hdr *hdr, 
	page_code = GET_INQ_PAGE_CODE(cmd);

	alloc_len = GET_INQ_ALLOC_LENGTH(cmd);



	inq_response = kmalloc(alloc_len, GFP_KERNEL);

	inq_response = kmalloc(max(alloc_len, STANDARD_INQUIRY_LENGTH),

				GFP_KERNEL);

	if (inq_response == NULL) {

		res = -ENOMEM;

		goto out_mem;

include/linux/blkdev.h

+0 −2
Original line number Diff line number Diff line
@@ -821,8 +821,6 @@ extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t, 
extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,

			 struct scsi_ioctl_command __user *);



extern void blk_queue_bio(struct request_queue *q, struct bio *bio);



/*

 * A queue has just exitted congestion.  Note this in the global counter of

 * congested queues, and wake up anyone who was waiting for requests to be

kernel/sched/core.c

+1 −4
Original line number Diff line number Diff line
@@ -4389,10 +4389,7 @@ long __sched io_schedule_timeout(long timeout) 
	long ret;



	current->in_iowait = 1;

	if (old_iowait)

	blk_schedule_flush_plug(current);

	else

		blk_flush_plug(current);



	delayacct_blkio_start();

	rq = raw_rq();