motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 23:33:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

block: Use blk_co_ioctl() for all BB level ioctls

Browse source 
All read/write functions already have a single coroutine-based function
on the BlockBackend level through which all requests go (no matter what
API style the external caller used) and which passes the requests down
to the block node level.

This patch exports a bdrv_co_ioctl() function and uses it to extend this
mode of operation to ioctls.

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 12:56:14 +02:00
parent 7381e95cc2
commit 48af776a5b
4 changed files with 39 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

8
block/io.c
View file

@ -2492,7 +2492,7 @@ int bdrv_pdiscard(BlockDriverState *bs, int64_t offset, int count)
return rwco.ret;
}
static int bdrv_co_do_ioctl(BlockDriverState *bs, int req, void *buf)
int bdrv_co_ioctl(BlockDriverState *bs, int req, void *buf)
{
BlockDriver *drv = bs->drv;
BdrvTrackedRequest tracked_req;
@ -2528,7 +2528,7 @@ typedef struct {
static void coroutine_fn bdrv_co_ioctl_entry(void *opaque)
{
BdrvIoctlCoData *data = opaque;
data->ret = bdrv_co_do_ioctl(data->bs, data->req, data->buf);
data->ret = bdrv_co_ioctl(data->bs, data->req, data->buf);
}
/* needed for generic scsi interface */
@ -2558,8 +2558,8 @@ int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
static void coroutine_fn bdrv_co_aio_ioctl_entry(void *opaque)
{
BlockAIOCBCoroutine *acb = opaque;
acb->req.error = bdrv_co_do_ioctl(acb->common.bs,
acb->req.req, acb->req.buf);
acb->req.error = bdrv_co_ioctl(acb->common.bs,
acb->req.req, acb->req.buf);
bdrv_co_complete(acb);
}