[PATCH] block: convert tasklets to use new tasklet_setup() API

[Kees Cook]

On Mon, Aug 17, 2020 at 06:56:47AM -0700, Jens Axboe wrote:
> On 8/17/20 2:15 AM, Allen Pais wrote:
> > From: Allen Pais <allen.lkml at gmail.com>
> > 
> > In preparation for unconditionally passing the
> > struct tasklet_struct pointer to all tasklet
> > callbacks, switch to using the new tasklet_setup()
> > and from_tasklet() to pass the tasklet pointer explicitly.
> 
> Who came up with the idea to add a macro 'from_tasklet' that is just
> container_of? container_of in the code would be _much_ more readable,
> and not leave anyone guessing wtf from_tasklet is doing.
> 
> I'd fix that up now before everything else goes in...

As I mentioned in the other thread, I think this makes things much more
readable. It's the same thing that the timer_struct conversion did
(added a container_of wrapper) to avoid the ever-repeating use of
typeof(), long lines, etc.

-- 
Kees Cook