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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_bitmap.c
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@@ -959,16 +959,16 @@ static void drbd_bm_endio(struct bio *bio)
!bm_test_page_unchanged(b->bm_pages[idx]))
drbd_warn(device, "bitmap page idx %u changed during IO!\n", idx);
if (bio->bi_error) {
if (bio->bi_status) {
/* ctx error will hold the completed-last non-zero error code,
* in case error codes differ. */
ctx->error = bio->bi_error;
ctx->error = blk_status_to_errno(bio->bi_status);
bm_set_page_io_err(b->bm_pages[idx]);
/* Not identical to on disk version of it.
* Is BM_PAGE_IO_ERROR enough? */
if (__ratelimit(&drbd_ratelimit_state))
drbd_err(device, "IO ERROR %d on bitmap page idx %u\n",
bio->bi_error, idx);
bio->bi_status, idx);
} else {
bm_clear_page_io_err(b->bm_pages[idx]);
dynamic_drbd_dbg(device, "bitmap page idx %u completed\n", idx);