On Fri, Mar 13, 2015 at 2:36 AM, Meyer Lansky <markus93@xxxxxxxx> wrote:
Hello all
continue to study the scheduler is O(1) there was one difficulty with the string 2 on 3, in that these blocking occurs after lines?
a reference to the code that study - http://lxr.free-electrons.com/source/kernel/sched.c?v=2.6.36
what I learn on line 4682 to 4695.
1 rcu_read_lock();
2 pcred = __task_cred(p);
3 match = (cred->euid == pcred->euid ||
cred->euid == pcread->uid);
4 rcu_read_unlock();
I ask because in the comments there is not described.
Thank.
Hi
I am not clear about your question.
perhaps specifically you asked about why rcu_read_lock() is called?
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regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
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