lkml.org 
[lkml]   [2012]   [Feb]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 4/4] epoll: ep_unregister_pollwait() can use the freed pwq->whead
On Thu, Feb 23, 2012 at 7:44 AM, Oleg Nesterov <oleg@redhat.com> wrote:
>
> Or we can rely on the fact that sighand_cachep is SLAB_DESTROY_BY_RCU,
> and assume that ->whead is always rcu-protected if it can go away.
>
> In this case we don't need 3/4 (although it makes sense to add the
> fat comment), and 4/4 can be simplified, see below.

Ok.

Can you also get rid of 1/4, because quite frankly, adding that
BUG_ON() is just annoying. Either the thing gets fixed or not, but at
no point is it ok to say "ok, I'm going to fix it, but before I do
I'll just make it much worse".

Hmm?
Linus


\
 
 \ /
  Last update: 2012-02-23 23:19    [W:0.069 / U:1.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site