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authorEric Blake <eblake@redhat.com>2016-05-06 10:26:34 -0600
committerKevin Wolf <kwolf@redhat.com>2016-05-12 15:22:09 +0200
commitd00000f90193cdbed32a16bcc9b5b4e9ff9d7ab2 (patch)
tree8993c903109d44cb1035b7719ec98d52c5d12e46 /hw/block/xen_disk.c
parentb5772fdde40a8200fc20db4d5da672f1ce149d68 (diff)
xen_disk: Switch to byte-based aio block access
Sector-based blk_aio_readv() and blk_aio_writev() should die; switch to byte-based blk_aio_preadv() and blk_aio_pwritev() instead. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/block/xen_disk.c')
-rw-r--r--hw/block/xen_disk.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index d4ce380fee..064c116a7c 100644
--- a/hw/block/xen_disk.c
+++ b/hw/block/xen_disk.c
@@ -554,9 +554,8 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
block_acct_start(blk_get_stats(blkdev->blk), &ioreq->acct,
ioreq->v.size, BLOCK_ACCT_READ);
ioreq->aio_inflight++;
- blk_aio_readv(blkdev->blk, ioreq->start / BLOCK_SIZE,
- &ioreq->v, ioreq->v.size / BLOCK_SIZE,
- qemu_aio_complete, ioreq);
+ blk_aio_preadv(blkdev->blk, ioreq->start, &ioreq->v, 0,
+ qemu_aio_complete, ioreq);
break;
case BLKIF_OP_WRITE:
case BLKIF_OP_FLUSH_DISKCACHE:
@@ -569,9 +568,8 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
ioreq->req.operation == BLKIF_OP_WRITE ?
BLOCK_ACCT_WRITE : BLOCK_ACCT_FLUSH);
ioreq->aio_inflight++;
- blk_aio_writev(blkdev->blk, ioreq->start / BLOCK_SIZE,
- &ioreq->v, ioreq->v.size / BLOCK_SIZE,
- qemu_aio_complete, ioreq);
+ blk_aio_pwritev(blkdev->blk, ioreq->start, &ioreq->v, 0,
+ qemu_aio_complete, ioreq);
break;
case BLKIF_OP_DISCARD:
{