diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2010-01-12 13:49:43 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-01-13 17:14:15 -0600 |
| commit | f8012c135ecb0f410245b3ed0476a5d0a61beb9c (patch) | |
| tree | 8e90be24f0a71fa3a300a4e9075cfc4bb41dc74e /block | |
| parent | 3f5075ae63b6dc1de9428d028a4d28fc98e7fdff (diff) | |
| download | qemu-f8012c135ecb0f410245b3ed0476a5d0a61beb9c.zip | |
qcow/qcow2: implement bdrv_aio_flush
Now that we do not have to flush the backing device anymore implementing
the bdrv_aio_flush method for image formats is trivial.
[hch: forward ported to qemu mainline from a product tree]
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/qcow.c | 9 | ||||
| -rw-r--r-- | block/qcow2.c | 9 |
2 files changed, 18 insertions, 0 deletions
diff --git a/block/qcow.c b/block/qcow.c index 7fc85ae588..1e3e59b008 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -900,6 +900,14 @@ static void qcow_flush(BlockDriverState *bs) bdrv_flush(s->hd); } +static BlockDriverAIOCB *qcow_aio_flush(BlockDriverState *bs, + BlockDriverCompletionFunc *cb, void *opaque) +{ + BDRVQcowState *s = bs->opaque; + + return bdrv_aio_flush(s->hd, cb, opaque); +} + static int qcow_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) { BDRVQcowState *s = bs->opaque; @@ -940,6 +948,7 @@ static BlockDriver bdrv_qcow = { .bdrv_make_empty = qcow_make_empty, .bdrv_aio_readv = qcow_aio_readv, .bdrv_aio_writev = qcow_aio_writev, + .bdrv_aio_flush = qcow_aio_flush, .bdrv_write_compressed = qcow_write_compressed, .bdrv_get_info = qcow_get_info, diff --git a/block/qcow2.c b/block/qcow2.c index 4f9ef91715..6622ebadb0 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1111,6 +1111,14 @@ static void qcow_flush(BlockDriverState *bs) bdrv_flush(s->hd); } +static BlockDriverAIOCB *qcow_aio_flush(BlockDriverState *bs, + BlockDriverCompletionFunc *cb, void *opaque) +{ + BDRVQcowState *s = bs->opaque; + + return bdrv_aio_flush(s->hd, cb, opaque); +} + static int64_t qcow_vm_state_offset(BDRVQcowState *s) { return (int64_t)s->l1_vm_state_index << (s->cluster_bits + s->l2_bits); @@ -1225,6 +1233,7 @@ static BlockDriver bdrv_qcow2 = { .bdrv_aio_readv = qcow_aio_readv, .bdrv_aio_writev = qcow_aio_writev, + .bdrv_aio_flush = qcow_aio_flush, .bdrv_write_compressed = qcow_write_compressed, .bdrv_snapshot_create = qcow2_snapshot_create, |