Re: [RFC PATCH 09/21] list: Remove unnecessary WRITE_ONCE() from hlist_bl_add_before()

[Will Deacon]

On Mon, Mar 30, 2020 at 04:30:20PM -0700, Paul E. McKenney wrote:
> On Tue, Mar 24, 2020 at 03:36:31PM +0000, Will Deacon wrote:
> > There is no need to use WRITE_ONCE() when inserting into a non-RCU
> > protected list.
> > 
> > Cc: Paul E. McKenney <paulmck@xxxxxxxxxx>
> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> > Signed-off-by: Will Deacon <will@xxxxxxxxxx>
> 
> OK, I will bite...  Why "unsigned long" instead of "uintptr_t"?

I just did that for consistency with the rest of the file, e.g.
hlist_bl_first(), hlist_bl_set_first(), hlist_bl_empty() and
__hlist_bl_del() all cast to 'unsigned long', yet only
hlist_bl_add_before() was using 'uintptr_t'

> Not that it matters in the context of the Linux kernel, so:
> 
> Reviewed-by: Paul E. McKenney <paulmck@xxxxxxxxxx>

Thanks, Paul!

Will