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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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8
drivers/md/md.c
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@@ -273,7 +273,7 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
}
if (mddev->ro == 1 && unlikely(rw == WRITE)) {
if (bio_sectors(bio) != 0)
bio->bi_error = -EROFS;
bio->bi_status = BLK_STS_IOERR;
bio_endio(bio);
return BLK_QC_T_NONE;
}
@@ -719,8 +719,8 @@ static void super_written(struct bio *bio)
struct md_rdev *rdev = bio->bi_private;
struct mddev *mddev = rdev->mddev;
if (bio->bi_error) {
pr_err("md: super_written gets error=%d\n", bio->bi_error);
if (bio->bi_status) {
pr_err("md: super_written gets error=%d\n", bio->bi_status);
md_error(mddev, rdev);
if (!test_bit(Faulty, &rdev->flags)
&& (bio->bi_opf & MD_FAILFAST)) {
@@ -801,7 +801,7 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
submit_bio_wait(bio);
ret = !bio->bi_error;
ret = !bio->bi_status;
bio_put(bio);
return ret;
}