linux-kernel - Re: Simplifying our RCU models

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Date:   Tue, 6 Mar 2018 10:00:50 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Tejun Heo <tj@...nel.org>, Jann Horn <jannh@...gle.com>,
        Benjamin LaHaise <bcrl@...ck.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        linux-kernel@...r.kernel.org
Subject: Re: Simplifying our RCU models


* Ingo Molnar <mingo@...nel.org> wrote:

>    I.e. the new RCU namespace would be something like:
> 
>      call_rcu                     => rcu_call_rcu

typo: rcu_call().

>      synchronize_rcu              => rcu_wait_

typo: rcu_wait().

Here's the updated table:

     # RCU APIs:

     rcu_read_lock                => rcu_read_lock        # unchanged
     rcu_read_unlock              => rcu_read_unlock      # unchanged

     call_rcu                     => rcu_call
     call_rcu_bh                  => rcu_call_bh
     call_rcu_sched               => rcu_call_sched

     synchronize_rcu              => rcu_wait
     synchronize_rcu_bh           => rcu_wait_bh
     synchronize_rcu_bh_expedited => rcu_wait_expedited_bh
     synchronize_rcu_expedited    => rcu_wait_expedited
     synchronize_rcu_mult         => rcu_wait_mult
     synchronize_rcu_sched        => rcu_wait_sched
     synchronize_rcu_tasks        => rcu_wait_tasks

     get_state_synchronize_rcu    => rcu_get_state
     cond_synchronize_rcu         => rcu_wait_state


     # SRCU APIs:

     srcu_read_lock               => srcu_read_lock       # unchanged
     srcu_read_unlock             => srcu_read_unlock     # unchanged

     synchronize_srcu             => srcu_wait
     synchronize_srcu_expedited   => srcu_wait_expedited


Thanks,

	Ingo