[lkml]   [2009]   [Oct]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Difference between atomic operations and memory barriers
> Noah Watkins wrote:
>>> So we can safely assume that pointer assignment will be done in an
>>> atomic manner?
>> See the the comment above rcu_assign_pointer in
>> include/linux/rcupdate.h
> This comment only talks about ordering, not about atomicity.
Ahh, yeh that's true.

> Again, AFAIR the ISO C spec should explain what is going to be
> guaranteed atomic and what might not be atomic.
This seems likely. I wonder if there are any strange architectures
out there that have some insane implementation.


 \ /
  Last update: 2009-10-26 21:17    [W:0.054 / U:7.728 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site