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Message-ID: <20120308195028.GA17564@kroah.com>
Date: Thu, 8 Mar 2012 11:50:28 -0800
From: Greg KH <gregkh@...uxfoundation.org>
To: Jiri Slaby <jslaby@...e.cz>
Cc: alan@...ux.intel.com, linux-serial@...r.kernel.org,
linux-kernel@...r.kernel.org, jirislaby@...il.com
Subject: Re: [PATCH 00/68] TTY buffer in tty_port -- prep no. 1
On Mon, Mar 05, 2012 at 02:51:47PM +0100, Jiri Slaby wrote:
> Hi,
>
> this is the first series of patches which allow tty buffers to be
> moved from tty_struct (present from open to close/hangup) to tty_port
> (present as long as the device). This will allow us to get rid of the
> tty refcounting in the interrupt service routines and other hot paths
> after we are done. This is because we won't need to handle races among
> ISRs, timers, hangups and others, because tty_port lives as long as an
> interrupt/timer tick may occur. Unlike tty_struct.
>
> In this series, only first few drivers are converted to use
> tty_port. The rest is to come later.
>
> The first few patches are simple fixes/cleanups which emerged during
> the code investigation here and there. Further serialP header removal
> happens there. Finally, some drivers are forced to use tty_port, which
> will become a necessity in the future.
>
> Simserial (ia64) and standard x86 stuff were runtime-tested. The rest
> is only checked to be compilation-errors free.
>
> Final remark: simserial stuff depends on 4 patches sent to Tony Luck
> last week. They are in hist tree and -next already.
Where are those patches at specifically? Can you send them to me so I
could include them in my tree? Otherwise I can only apply the first 27
of these patches (which I have now done.)
thanks,
greg k-h
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