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block: switch bios to blk_status_t

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Replace bi_error with a new bi_status to allow for a clear conversion.
Note that device mapper overloaded bi_error with a private value, which
we'll have to keep arround at least for now and thus propagate to a
proper blk_status_t value.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2017-06-03 09:38:06 +02:00
committed by Jens Axboe
parent fc17b6534e
commit 4e4cbee93d
106 changed files with 625 additions and 603 deletions
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6
drivers/block/drbd/drbd_req.c
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@@ -203,7 +203,7 @@ void start_new_tl_epoch(struct drbd_connection *connection)
void complete_master_bio(struct drbd_device *device,
struct bio_and_error *m)
{
m->bio->bi_error = m->error;
m->bio->bi_status = errno_to_blk_status(m->error);
bio_endio(m->bio);
dec_ap_bio(device);
}
@@ -1157,7 +1157,7 @@ static void drbd_process_discard_req(struct drbd_request *req)
if (blkdev_issue_zeroout(bdev, req->i.sector, req->i.size >> 9,
GFP_NOIO, 0))
req->private_bio->bi_error = -EIO;
req->private_bio->bi_status = BLK_STS_IOERR;
bio_endio(req->private_bio);
}
@@ -1225,7 +1225,7 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long
/* only pass the error to the upper layers.
* if user cannot handle io errors, that's not our business. */
drbd_err(device, "could not kmalloc() req\n");
bio->bi_error = -ENOMEM;
bio->bi_status = BLK_STS_RESOURCE;
bio_endio(bio);
return ERR_PTR(-ENOMEM);
}