From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from n23.mail01.mtsvc.net (mailout32.mail01.mtsvc.net [216.70.64.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id F07D91A01AA for ; Sat, 12 Jul 2014 01:03:22 +1000 (EST) Message-ID: <53BFFCB0.5020400@hurleysoftware.com> Date: Fri, 11 Jul 2014 11:03:12 -0400 From: Peter Hurley MIME-Version: 1.0 To: Greg Kroah-Hartman Subject: Re: [PATCH tty-next 14/22] tty: Remove tty_wait_until_sent_from_close() References: <1402924639-5164-1-git-send-email-peter@hurleysoftware.com> <1402924639-5164-15-git-send-email-peter@hurleysoftware.com> <20140710230936.GA31181@kroah.com> In-Reply-To: <20140710230936.GA31181@kroah.com> Content-Type: text/plain; charset=UTF-8; format=flowed Cc: One Thousand Gnomes , Karsten Keil , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 07/10/2014 07:09 PM, Greg Kroah-Hartman wrote: > On Mon, Jun 16, 2014 at 09:17:11AM -0400, Peter Hurley wrote: >> tty_wait_until_sent_from_close() drops the tty lock while waiting >> for the tty driver to finish sending previously accepted data (ie., >> data remaining in its write buffer and transmit fifo). >> >> However, dropping the tty lock is a hold-over from when the tty >> lock was system-wide; ie., one lock for all ttys. >> >> Since commit 89c8d91e31f267703e365593f6bfebb9f6d2ad01, >> 'tty: localise the lock', dropping the tty lock has not been necessary. >> >> CC: Karsten Keil >> CC: linuxppc-dev@lists.ozlabs.org >> Signed-off-by: Peter Hurley >> --- >> drivers/isdn/i4l/isdn_tty.c | 2 +- >> drivers/tty/hvc/hvc_console.c | 2 +- >> drivers/tty/hvc/hvcs.c | 2 +- >> drivers/tty/tty_port.c | 11 ++--------- >> include/linux/tty.h | 18 ------------------ >> 5 files changed, 5 insertions(+), 30 deletions(-) > > I've applied the first 13 patches in this series, as it looks like you > were going to split things up from here, right? Yes, thanks for doing that. > Can you refresh these and resend when you have that done? Unfortunately, that probably won't be until after the 3.17 merge window, for 3.18. The tty_open() rework is not trivial and there is an issue with the ldisc flush removal patch. I'm hoping to include the tty flow control fixes with that stuff as well. Regards, Peter Hurley