linux-kernel - Re: [PATCH 2/8] blk-mq: protect completion path with RCU

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Date:   Tue, 9 Jan 2018 00:33:35 +0100
From:   Holger Hoffstätte <holger@...lied-asynchrony.com>
To:     Jens Axboe <axboe@...nel.dk>, Tejun Heo <tj@...nel.org>,
        jack@...e.cz, clm@...com, jbacik@...com
Cc:     kernel-team@...com, linux-kernel@...r.kernel.org,
        linux-btrfs@...r.kernel.org, peterz@...radead.org,
        jianchao.w.wang@...cle.com, Bart.VanAssche@....com,
        linux-block@...r.kernel.org
Subject: Re: [PATCH 2/8] blk-mq: protect completion path with RCU

On 01/09/18 00:27, Holger Hoffstätte wrote:
> On 01/08/18 23:55, Jens Axboe wrote:
>> the good old
>>
>> int srcu_idx = srcu_idx;
>>
>> should get the job done.
> 
> (Narrator: It didn't.)

Narrator: we retract our previous statement and apologize for the
confusion. It works fine when you correctly replace all occurrences,
not just one. <:)

Holger