block: switch bios to blk_status_t

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>

1 files changed, 8 insertions, 8 deletions

diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index d8ea0eb76325..f3d30d9ea8f9 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -871,7 +871,7 @@ static void free_raid_bio(struct btrfs_raid_bio *rbio)
  * this frees the rbio and runs through all the bios in the
  * bio_list and calls end_io on them
  */
-static void rbio_orig_end_io(struct btrfs_raid_bio *rbio, int err)
+static void rbio_orig_end_io(struct btrfs_raid_bio *rbio, blk_status_t err)
 {
         struct bio *cur = bio_list_get(&rbio->bio_list);
         struct bio *next;
@@ -884,7 +884,7 @@ static void rbio_orig_end_io(struct btrfs_raid_bio *rbio, int err)
         while (cur) {
                 next = cur->bi_next;
                 cur->bi_next = NULL;
-                cur->bi_error = err;
+                cur->bi_status = err;
                 bio_endio(cur);
                 cur = next;
         }
@@ -897,7 +897,7 @@ static void rbio_orig_end_io(struct btrfs_raid_bio *rbio, int err)
 static void raid_write_end_io(struct bio *bio)
 {
         struct btrfs_raid_bio *rbio = bio->bi_private;
-        int err = bio->bi_error;
+        blk_status_t err = bio->bi_status;
         int max_errors;
 
         if (err)
@@ -914,7 +914,7 @@ static void raid_write_end_io(struct bio *bio)
         max_errors = (rbio->operation == BTRFS_RBIO_PARITY_SCRUB) ?
                      0 : rbio->bbio->max_errors;
         if (atomic_read(&rbio->error) > max_errors)
-                err = -EIO;
+                err = BLK_STS_IOERR;
 
         rbio_orig_end_io(rbio, err);
 }
@@ -1092,7 +1092,7 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
                  * devices or if they are not contiguous
                  */
                 if (last_end == disk_start && stripe->dev->bdev &&
-                    !last->bi_error &&
+                    !last->bi_status &&
                     last->bi_bdev == stripe->dev->bdev) {
                         ret = bio_add_page(last, page, PAGE_SIZE, 0);
                         if (ret == PAGE_SIZE)
@@ -1448,7 +1448,7 @@ static void raid_rmw_end_io(struct bio *bio)
 {
         struct btrfs_raid_bio *rbio = bio->bi_private;
 
-        if (bio->bi_error)
+        if (bio->bi_status)
                 fail_bio_stripe(rbio, bio);
         else
                 set_bio_pages_uptodate(bio);
@@ -1991,7 +1991,7 @@ static void raid_recover_end_io(struct bio *bio)
          * we only read stripe pages off the disk, set them
          * up to date if there were no errors
          */
-        if (bio->bi_error)
+        if (bio->bi_status)
                 fail_bio_stripe(rbio, bio);
         else
                 set_bio_pages_uptodate(bio);
@@ -2530,7 +2530,7 @@ static void raid56_parity_scrub_end_io(struct bio *bio)
 {
         struct btrfs_raid_bio *rbio = bio->bi_private;
 
-        if (bio->bi_error)
+        if (bio->bi_status)
                 fail_bio_stripe(rbio, bio);
         else
                 set_bio_pages_uptodate(bio);