From: Tejun Heo <tj@kernel.org>
To: Omar Sandoval <osandov@osandov.com>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH RFC] sbitmap: Use lock/unlock atomic bitops
Date: Tue, 27 Feb 2018 10:14:04 -0800 [thread overview]
Message-ID: <20180227181404.GA24003@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <20180226221444.GD9157@vader.DHCP.thefacebook.com>
Hello, Omar.
On Mon, Feb 26, 2018 at 02:14:44PM -0800, Omar Sandoval wrote:
> > wake_index = atomic_read(&sbq->wake_index);
> > for (i = 0; i < SBQ_WAIT_QUEUES; i++) {
> > struct sbq_wait_state *ws = &sbq->ws[wake_index];
>
> So I think we want a patch for the test_and_set_bit_lock() and
> clear_bit_unlock(), but the rest should stay as-is.
Yeah, that makes sense to me. Would you be interested in updating the
patch?
Thanks.
--
tejun
next prev parent reply other threads:[~2018-02-27 18:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-18 13:05 [PATCH RFC] sbitmap: Use lock/unlock atomic bitops Tejun Heo
2018-02-26 22:14 ` Omar Sandoval
2018-02-27 18:14 ` Tejun Heo [this message]
2018-02-27 20:29 ` Omar Sandoval
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