qemu/block.c - diff

Return to block.c CVS log

Up to [Qemu by Fabrice Bellard] / qemu

version 1.1.1.19, 2018/04/24 18:34:00	version 1.1.1.20, 2018/04/24 18:43:37
Line 697 void bdrv_close_all(void)	Line 697 void bdrv_close_all(void)
}	}
}	}

	/* make a BlockDriverState anonymous by removing from bdrv_state list.
	Also, NULL terminate the device_name to prevent double remove */
	void bdrv_make_anon(BlockDriverState *bs)
	{
	if (bs->device_name[0] != '\0') {
	QTAILQ_REMOVE(&bdrv_states, bs, list);
	}
	bs->device_name[0] = '\0';
	}

void bdrv_delete(BlockDriverState *bs)	void bdrv_delete(BlockDriverState *bs)
{	{
assert(!bs->peer);	assert(!bs->peer);

/* remove from list, if necessary */	/* remove from list, if necessary */
if (bs->device_name[0] != '\0') {	bdrv_make_anon(bs);
QTAILQ_REMOVE(&bdrv_states, bs, list);
}

bdrv_close(bs);	bdrv_close(bs);
if (bs->file != NULL) {	if (bs->file != NULL) {
Line 2295 int bdrv_aio_multiwrite(BlockDriverState	Line 2303 int bdrv_aio_multiwrite(BlockDriverState
MultiwriteCB *mcb;	MultiwriteCB *mcb;
int i;	int i;

	/* don't submit writes if we don't have a medium */
	if (bs->drv == NULL) {
	for (i = 0; i < num_reqs; i++) {
	reqs[i].error = -ENOMEDIUM;
	}
	return -1;
	}

if (num_reqs == 0) {	if (num_reqs == 0) {
return 0;	return 0;
}	}