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authorChristoph Hellwig <hch@lst.de>2017-06-03 09:38:06 +0200
committerJens Axboe <axboe@fb.com>2017-06-09 09:27:32 -0600
commit4e4cbee93d56137ebff722be022cae5f70ef84fb (patch)
tree4fa7345155599fc6bdd653fca8c5224ddf90a5be /drivers/block/xen-blkback
parentfc17b6534eb8395f0b3133eb31d87deec32c642b (diff)
downloadlinux-4e4cbee93d56137ebff722be022cae5f70ef84fb.tar.bz2
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>
Diffstat (limited to 'drivers/block/xen-blkback')
-rw-r--r--drivers/block/xen-blkback/blkback.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 726c32e35db9..746bd8c8c09a 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -1069,20 +1069,17 @@ static void xen_blk_drain_io(struct xen_blkif_ring *ring)
atomic_set(&blkif->drain, 0);
}
-/*
- * Completion callback on the bio's. Called as bh->b_end_io()
- */
-
-static void __end_block_io_op(struct pending_req *pending_req, int error)
+static void __end_block_io_op(struct pending_req *pending_req,
+ blk_status_t error)
{
/* An error fails the entire request. */
- if ((pending_req->operation == BLKIF_OP_FLUSH_DISKCACHE) &&
- (error == -EOPNOTSUPP)) {
+ if (pending_req->operation == BLKIF_OP_FLUSH_DISKCACHE &&
+ error == BLK_STS_NOTSUPP) {
pr_debug("flush diskcache op failed, not supported\n");
xen_blkbk_flush_diskcache(XBT_NIL, pending_req->ring->blkif->be, 0);
pending_req->status = BLKIF_RSP_EOPNOTSUPP;
- } else if ((pending_req->operation == BLKIF_OP_WRITE_BARRIER) &&
- (error == -EOPNOTSUPP)) {
+ } else if (pending_req->operation == BLKIF_OP_WRITE_BARRIER &&
+ error == BLK_STS_NOTSUPP) {
pr_debug("write barrier op failed, not supported\n");
xen_blkbk_barrier(XBT_NIL, pending_req->ring->blkif->be, 0);
pending_req->status = BLKIF_RSP_EOPNOTSUPP;
@@ -1106,7 +1103,7 @@ static void __end_block_io_op(struct pending_req *pending_req, int error)
*/
static void end_block_io_op(struct bio *bio)
{
- __end_block_io_op(bio->bi_private, bio->bi_error);
+ __end_block_io_op(bio->bi_private, bio->bi_status);
bio_put(bio);
}
@@ -1423,7 +1420,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
for (i = 0; i < nbio; i++)
bio_put(biolist[i]);
atomic_set(&pending_req->pendcnt, 1);
- __end_block_io_op(pending_req, -EINVAL);
+ __end_block_io_op(pending_req, BLK_STS_RESOURCE);
msleep(1); /* back off a bit */
return -EIO;
}