linux-kernel - Re: [PATCH v4 04/16] locking/rwsem: Implement a new locking scheme

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Message-ID: <f6ec3b2e-5a23-d447-cf7d-459f81f5fce4@redhat.com>
Date:   Tue, 16 Apr 2019 09:32:38 -0400
From:   Waiman Long <longman@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Ingo Molnar <mingo@...hat.com>, Will Deacon <will.deacon@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        Davidlohr Bueso <dave@...olabs.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        huang ying <huang.ying.caritas@...il.com>
Subject: Re: [PATCH v4 04/16] locking/rwsem: Implement a new locking scheme

On 04/16/2019 09:22 AM, Peter Zijlstra wrote:
> On Sat, Apr 13, 2019 at 01:22:47PM -0400, Waiman Long wrote:
>> +#define RWSEM_COUNT_LOCKED(c)	((c) & RWSEM_LOCK_MASK)
> The above doesn't seem to make it more readable or shorter.

Fair enough. I can remove that macro.

Cheers,
Longman