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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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2
include/linux/device-mapper.h
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@ -72,7 +72,7 @@ typedef void (*dm_release_clone_request_fn) (struct request *clone);
* 2 : The target wants to push back the io
*/
typedef int (*dm_endio_fn) (struct dm_target *ti,
struct bio *bio, int *error);
struct bio *bio, blk_status_t *error);
typedef int (*dm_request_endio_fn) (struct dm_target *ti,
struct request *clone, blk_status_t error,
union map_info *map_context);