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[Qemu-devel] [PATCH v7 08/19] xen_disk: Switch to byte-based aio block a
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v7 08/19] xen_disk: Switch to byte-based aio block access |
Date: |
Fri, 6 May 2016 10:26:34 -0600 |
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 <address@hidden>
---
hw/block/xen_disk.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c
index d4ce380..064c116 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:
{
--
2.5.5
- [Qemu-devel] [PATCH v7 17/19] qemu-img: Switch to byte-based block access, (continued)
- [Qemu-devel] [PATCH v7 17/19] qemu-img: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 07/19] virtio: Switch to byte-based aio block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 09/19] fdc: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 12/19] pflash: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 15/19] atapi: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 02/19] block: Switch blk_read_unthrottled() to byte interface, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 19/19] block: Kill unused sector-based blk_* functions, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 05/19] ide: Switch to byte-based aio block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 11/19] onenand: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 18/19] qemu-io: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 08/19] xen_disk: Switch to byte-based aio block access,
Eric Blake <=
- [Qemu-devel] [PATCH v7 14/19] m25p80: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 13/19] sd: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 01/19] block: Allow BDRV_REQ_FUA through blk_pwrite(), Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 16/19] nbd: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 10/19] nand: Switch to byte-based block access, Eric Blake, 2016/05/06
- [Qemu-devel] [PATCH v7 06/19] scsi-disk: Switch to byte-based aio block access, Eric Blake, 2016/05/06
- Re: [Qemu-devel] [PATCH v7 06/19] scsi-disk: Switch to byte-based aio block access, Paolo Bonzini, 2016/05/12