From: Davidlohr Bueso <dave@stgolabs.net>
To: Johan Hovold <johan@kernel.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] USB: serial: relax unthrottle memory barrier
Date: Thu, 30 Jan 2020 07:33:28 -0800 [thread overview]
Message-ID: <20200130153328.jt5stb4svajrbkf6@linux-p48b> (raw)
In-Reply-To: <20200130100658.683-1-johan@kernel.org>
On Thu, 30 Jan 2020, Johan Hovold wrote:
>Commit a8d78d9f3856 ("USB: serial: clean up throttle handling")
>converted the throttle handling to use atomic bitops. This means that we
>can relax the smp_mb() in unthrottle() to smp_mb__after_atomic(), which
>for example is a no-op on architectures like x86 that provide fully
>ordered atomics.
>
>Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Davidlohr Bueso <dbueso@suse.de>
next prev parent reply other threads:[~2020-01-30 15:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-30 10:06 [PATCH] USB: serial: relax unthrottle memory barrier Johan Hovold
2020-01-30 10:23 ` Greg KH
2020-01-30 15:33 ` Davidlohr Bueso [this message]
2020-02-10 9:38 ` Johan Hovold
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200130153328.jt5stb4svajrbkf6@linux-p48b \
--to=dave@stgolabs.net \
--cc=johan@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).