lkml.org 
[lkml]   [2016]   [Oct]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH 4/4] futex: Rewrite FUTEX_UNLOCK_PI
On Mon, Oct 03, 2016 at 11:36:24AM -0400, Steven Rostedt wrote:

> > + WARN_ON_ONCE(!atomic_inc_not_zero(&pi_state->refcount));
>
> Don't we have a rule where WARN_ON() and BUG_ON() should never have
> "side effects"? That is, they should only check values, but their
> contents should not update values.

not that I'm aware, there's various places in the kernel (including
kref.h) that relies on WARN_ON*() having side effects.

\
 
 \ /
  Last update: 2016-10-03 17:46    [W:0.203 / U:0.688 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site