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block: Introduce .bdrv_co_ioctl() driver callback

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This allows drivers to implement ioctls in a coroutine-based way.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2016-10-20 15:07:27 +02:00
parent 61b2450414
commit 16a389dc9e
2 changed files with 12 additions and 6 deletions
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2
include/block/block_int.h
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@ -244,6 +244,8 @@ struct BlockDriver {
BlockAIOCB *(*bdrv_aio_ioctl)(BlockDriverState *bs,
unsigned long int req, void *buf,
BlockCompletionFunc *cb, void *opaque);
int coroutine_fn (*bdrv_co_ioctl)(BlockDriverState *bs,
unsigned long int req, void *buf);
/* List of options for creating images, terminated by name == NULL */
QemuOptsList *create_opts;