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[Qemu-block] [PATCH 9/9] qemu-img: use buffer-based io
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-block] [PATCH 9/9] qemu-img: use buffer-based io |
Date: |
Mon, 22 Apr 2019 17:58:38 +0300 |
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
qemu-img.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/qemu-img.c b/qemu-img.c
index aa6f81f1ea..c40a4e8b83 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1671,7 +1671,6 @@ static int coroutine_fn convert_co_read(ImgConvertState
*s, int64_t sector_num,
int nb_sectors, uint8_t *buf)
{
int n, ret;
- QEMUIOVector qiov;
assert(nb_sectors <= s->buf_sectors);
while (nb_sectors > 0) {
@@ -1687,11 +1686,10 @@ static int coroutine_fn convert_co_read(ImgConvertState
*s, int64_t sector_num,
bs_sectors = s->src_sectors[src_cur];
n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset));
- qemu_iovec_init_buf(&qiov, buf, n << BDRV_SECTOR_BITS);
- ret = blk_co_preadv(
+ ret = blk_co_pread(
blk, (sector_num - src_cur_offset) << BDRV_SECTOR_BITS,
- n << BDRV_SECTOR_BITS, &qiov, 0);
+ n << BDRV_SECTOR_BITS, buf, 0);
if (ret < 0) {
return ret;
}
@@ -1710,7 +1708,6 @@ static int coroutine_fn convert_co_write(ImgConvertState
*s, int64_t sector_num,
enum ImgConvertBlockStatus status)
{
int ret;
- QEMUIOVector qiov;
while (nb_sectors > 0) {
int n = nb_sectors;
@@ -1738,10 +1735,8 @@ static int coroutine_fn convert_co_write(ImgConvertState
*s, int64_t sector_num,
(s->compressed &&
!buffer_is_zero(buf, n * BDRV_SECTOR_SIZE)))
{
- qemu_iovec_init_buf(&qiov, buf, n << BDRV_SECTOR_BITS);
-
- ret = blk_co_pwritev(s->target, sector_num << BDRV_SECTOR_BITS,
- n << BDRV_SECTOR_BITS, &qiov, flags);
+ ret = blk_co_pwrite(s->target, sector_num << BDRV_SECTOR_BITS,
+ n << BDRV_SECTOR_BITS, buf, flags);
if (ret < 0) {
return ret;
}
--
2.18.0
- [Qemu-block] [PATCH 0/9] block: buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 8/9] block/stream: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 7/9] block/commit: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 1/9] block: introduce byte-based io helpers, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 6/9] block/backup: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 4/9] block/qed: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 5/9] block/parallels: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 2/9] block/qcow2: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 3/9] block/qcow: use buffer-based io, Vladimir Sementsov-Ogievskiy, 2019/04/22
- [Qemu-block] [PATCH 9/9] qemu-img: use buffer-based io,
Vladimir Sementsov-Ogievskiy <=
- Re: [Qemu-block] [PATCH 0/9] block: buffer-based io, Stefan Hajnoczi, 2019/04/23
- Re: [Qemu-block] [Qemu-devel] [PATCH 0/9] block: buffer-based io, Stefano Garzarella, 2019/04/30
- Re: [Qemu-block] [PATCH 0/9] block: buffer-based io, Kevin Wolf, 2019/04/30