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| author | Kevin Wolf <kwolf@redhat.com> | 2013-04-05 21:27:55 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-04-15 08:26:18 +0200 |
| commit | 8d3b1a2d0b34a95800c482e1414c63f469ac4973 (patch) | |
| tree | 89f06faf7d2261daa5c3039413a1ccc06bc3f22d /block | |
| parent | 05fcc84888cfabec2267851415b66395a73a0f5f (diff) | |
| download | qemu-8d3b1a2d0b34a95800c482e1414c63f469ac4973.zip qemu-8d3b1a2d0b34a95800c482e1414c63f469ac4973.tar.gz qemu-8d3b1a2d0b34a95800c482e1414c63f469ac4973.tar.bz2 | |
block: Introduce bdrv_pwritev() for qcow2_save_vmstate
Directly pass the QEMUIOVector on instead of linearising it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/qcow2.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 1d856af..e8934de 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1658,18 +1658,12 @@ static int qcow2_save_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, BDRVQcowState *s = bs->opaque; int growable = bs->growable; int ret; - void *buf; - - buf = qemu_blockalign(bs, qiov->size); - qemu_iovec_to_buf(qiov, 0, buf, qiov->size); BLKDBG_EVENT(bs->file, BLKDBG_VMSTATE_SAVE); bs->growable = 1; - ret = bdrv_pwrite(bs, qcow2_vm_state_offset(s) + pos, buf, qiov->size); + ret = bdrv_pwritev(bs, qcow2_vm_state_offset(s) + pos, qiov); bs->growable = growable; - qemu_vfree(buf); - return ret; } |