| Message ID | dbd15f28b4544f56edb37cc9bbb4dacfc5feae56.1387419339.git.hutao@cn.fujitsu.com |
|---|---|
| State | New |
| Headers | show |
On Thu, Dec 19, 2013 at 10:27:40AM +0800, Hu Tao wrote: > Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> > --- > block/qcow2.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/block/qcow2.c b/block/qcow2.c > index 32cb39f..487a595 100644 > --- a/block/qcow2.c > +++ b/block/qcow2.c > @@ -2188,6 +2188,12 @@ static int qcow2_amend_options(BlockDriverState *bs, > return 0; > } > > +static int qcow2_preallocate(BlockDriverState *bs, int64_t offset, > + int64_t length) > +{ > + return bdrv_preallocate(bs->file, offset, length); > +} What about qcow2-level preallocation (metadata)? I'm not sure what the meaning of offset and length are here - are they supposed to be virtual disk LBAs. They are being passed through to bs->file so they actually become physical file offsets.
diff --git a/block/qcow2.c b/block/qcow2.c index 32cb39f..487a595 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -2188,6 +2188,12 @@ static int qcow2_amend_options(BlockDriverState *bs, return 0; } +static int qcow2_preallocate(BlockDriverState *bs, int64_t offset, + int64_t length) +{ + return bdrv_preallocate(bs->file, offset, length); +} + static QEMUOptionParameter qcow2_create_options[] = { { .name = BLOCK_OPT_SIZE, @@ -2242,6 +2248,7 @@ static BlockDriver bdrv_qcow2 = { .bdrv_reopen_prepare = qcow2_reopen_prepare, .bdrv_create = qcow2_create, .bdrv_has_zero_init = bdrv_has_zero_init_1, + .bdrv_preallocate = qcow2_preallocate, .bdrv_co_get_block_status = qcow2_co_get_block_status, .bdrv_set_key = qcow2_set_key, .bdrv_make_empty = qcow2_make_empty,
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> --- block/qcow2.c | 7 +++++++ 1 file changed, 7 insertions(+)