From: Alan Cox <alan@linux.intel.com>
To: Ivo Sieben <meltedpianoman@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
<linux-serial@vger.kernel.org>,
RT <linux-rt-users@vger.kernel.org>
Subject: Re: [PATCH] tty: Use raw spin lock to protect RX flip buffer
Date: Thu, 20 Sep 2012 17:37:31 +0100 [thread overview]
Message-ID: <20120920173731.657cd2b2@bob.linux.org.uk> (raw)
In-Reply-To: <1348150080-4794-1-git-send-email-meltedpianoman@gmail.com>
On Thu, 20 Sep 2012 16:08:00 +0200
Ivo Sieben <meltedpianoman@gmail.com> wrote:
> The "normal" spin lock that guards the RX flip buffer is replaced by
> a raw spin lock.
Our current goal is to get the buffers into the tty_port structure so
we can try and get rid of some of the locks entirely. We have lockless
kfifos and the port lifetime is the device lifetime plus so hopefully
it'll go away entirely eventually.
In the meantime I've no real opinion on the spin/raw_spin choices as
it's basically an RT question not a tty one so if the rt folks are
happy with it so am I.
Alan
next prev parent reply other threads:[~2012-09-20 16:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 14:08 [PATCH] tty: Use raw spin lock to protect RX flip buffer Ivo Sieben
2012-09-20 16:37 ` Alan Cox [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-09-24 9:24 Ivo Sieben
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