lkml.org 
[lkml]   [2019]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/3] workqueue: Convert for_each_wq to use built-in list check (v2)
Hello, Joel.

On Sun, Aug 11, 2019 at 06:11:09PM -0400, Joel Fernandes (Google) wrote:
> list_for_each_entry_rcu now has support to check for RCU reader sections
> as well as lock. Just use the support in it, instead of explicitly
> checking in the caller.
>
> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>

Acked-by: Tejun Heo <tj@kernel.org>

> #define for_each_pwq(pwq, wq) \
> - list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node) \
> - if (({ assert_rcu_or_wq_mutex(wq); false; })) { } \
> - else
> + list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node, \
> + lock_is_held(&(wq->mutex).dep_map))

Why not lockdep_is_held() tho?

Thanks.

--
tejun

\
 
 \ /
  Last update: 2019-08-14 21:49    [W:0.099 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site