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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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10
drivers/md/dm-verity-target.c
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@@ -538,13 +538,13 @@ static int verity_verify_io(struct dm_verity_io *io)
/*
* End one "io" structure with a given error.
*/
static void verity_finish_io(struct dm_verity_io *io, int error)
static void verity_finish_io(struct dm_verity_io *io, blk_status_t status)
{
struct dm_verity *v = io->v;
struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size);
bio->bi_end_io = io->orig_bi_end_io;
bio->bi_error = error;
bio->bi_status = status;
verity_fec_finish_io(io);
@@ -555,15 +555,15 @@ static void verity_work(struct work_struct *w)
{
struct dm_verity_io *io = container_of(w, struct dm_verity_io, work);
verity_finish_io(io, verity_verify_io(io));
verity_finish_io(io, errno_to_blk_status(verity_verify_io(io)));
}
static void verity_end_io(struct bio *bio)
{
struct dm_verity_io *io = bio->bi_private;
if (bio->bi_error && !verity_fec_is_enabled(io->v)) {
verity_finish_io(io, bio->bi_error);
if (bio->bi_status && !verity_fec_is_enabled(io->v)) {
verity_finish_io(io, bio->bi_status);
return;
}