Supporting async IO in block device driver.

[Prasad Joshi]

Hi All,

I am working on a block device driver, like standard loop device, I am
adding every new IO request in a bio list. The code looks something like
this

make_request()
{
           bio_list_add();
           wakeup_thread();
}

thread()
{
         bio = get new bio()
         handle_bio(bio);
}

This is the synchronous version of IO. I would like to add the asynchronous
IO support.

Can someone point me to the appropriate document or A block driver that has
the support?

Thanks and Regards,
Prasad