diff options
Diffstat (limited to 'block/qcow.c')
| -rw-r--r-- | block/qcow.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/block/qcow.c b/block/qcow.c index 10d2cf14b3..1bb8fd05e2 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -631,7 +631,6 @@ static coroutine_fn int qcow_co_preadv(BlockDriverState *bs, uint64_t offset, int offset_in_cluster; int ret = 0, n; uint64_t cluster_offset; - QEMUIOVector hd_qiov; uint8_t *buf; void *orig_buf; @@ -663,11 +662,10 @@ static coroutine_fn int qcow_co_preadv(BlockDriverState *bs, uint64_t offset, if (!cluster_offset) { if (bs->backing) { /* read from the base image */ - qemu_iovec_init_buf(&hd_qiov, buf, n); qemu_co_mutex_unlock(&s->lock); /* qcow2 emits this on bs->file instead of bs->backing */ BLKDBG_EVENT(bs->file, BLKDBG_READ_BACKING_AIO); - ret = bdrv_co_preadv(bs->backing, offset, n, &hd_qiov, 0); + ret = bdrv_co_pread(bs->backing, offset, n, buf, 0); qemu_co_mutex_lock(&s->lock); if (ret < 0) { break; @@ -688,11 +686,10 @@ static coroutine_fn int qcow_co_preadv(BlockDriverState *bs, uint64_t offset, ret = -EIO; break; } - qemu_iovec_init_buf(&hd_qiov, buf, n); qemu_co_mutex_unlock(&s->lock); BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO); - ret = bdrv_co_preadv(bs->file, cluster_offset + offset_in_cluster, - n, &hd_qiov, 0); + ret = bdrv_co_pread(bs->file, cluster_offset + offset_in_cluster, + n, buf, 0); qemu_co_mutex_lock(&s->lock); if (ret < 0) { break; @@ -731,7 +728,6 @@ static coroutine_fn int qcow_co_pwritev(BlockDriverState *bs, uint64_t offset, int offset_in_cluster; uint64_t cluster_offset; int ret = 0, n; - QEMUIOVector hd_qiov; uint8_t *buf; void *orig_buf; @@ -776,11 +772,10 @@ static coroutine_fn int qcow_co_pwritev(BlockDriverState *bs, uint64_t offset, } } - qemu_iovec_init_buf(&hd_qiov, buf, n); qemu_co_mutex_unlock(&s->lock); BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO); - ret = bdrv_co_pwritev(bs->file, cluster_offset + offset_in_cluster, - n, &hd_qiov, 0); + ret = bdrv_co_pwrite(bs->file, cluster_offset + offset_in_cluster, + n, buf, 0); qemu_co_mutex_lock(&s->lock); if (ret < 0) { break; @@ -1056,7 +1051,6 @@ qcow_co_pwritev_compressed(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector *qiov) { BDRVQcowState *s = bs->opaque; - QEMUIOVector hd_qiov; z_stream strm; int ret, out_len; uint8_t *buf, *out_buf; @@ -1122,9 +1116,8 @@ qcow_co_pwritev_compressed(BlockDriverState *bs, uint64_t offset, } cluster_offset &= s->cluster_offset_mask; - qemu_iovec_init_buf(&hd_qiov, out_buf, out_len); BLKDBG_EVENT(bs->file, BLKDBG_WRITE_COMPRESSED); - ret = bdrv_co_pwritev(bs->file, cluster_offset, out_len, &hd_qiov, 0); + ret = bdrv_co_pwrite(bs->file, cluster_offset, out_len, out_buf, 0); if (ret < 0) { goto fail; } |