From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752257AbcAJFpX (ORCPT ); Sun, 10 Jan 2016 00:45:23 -0500 Received: from mail-pf0-f174.google.com ([209.85.192.174]:35805 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750839AbcAJFpU (ORCPT ); Sun, 10 Jan 2016 00:45:20 -0500 From: Peter Hurley To: Greg Kroah-Hartman Cc: Jiri Slaby , linux-kernel@vger.kernel.org, Peter Hurley Subject: [PATCH v2 0/7] More n_tty fixes Date: Sat, 9 Jan 2016 21:45:07 -0800 Message-Id: <1452404714-9295-1-git-send-email-peter@hurleysoftware.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1449958599-5533-1-git-send-email-peter@hurleysoftware.com> References: <1449958599-5533-1-git-send-email-peter@hurleysoftware.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes from v2: added patch 7 from Johannes Stezenbach which fixes the TTY_DO_WRITE_WAKEUP logic to prevent missed SIGIO and reduce excessive SIGIO original message follows: Hi Greg, This series collects up several fixes for N_TTY. The first patch fixes read() when VMIN > 0 & VTIME = 0 (so called "record mode"). By ripping out a marginal optimization, the overall code is greatly simplified and "record mode" read()s won't hang :) Patch 2 removes the pointless fasync() notification to line disciplines. Patches 3,4 & 5 fix hangup races with enabling/disabling signal-driven i/o. Patch 6 is a minor cleanup for a condition test that can never be true. Peter Hurley (7): n_tty: Always wake up read()/poll() if new input tty, n_tty: Remove fasync() ldisc notification tty: Add fasync() hung up file operation tty: Fix ioctl(FIOASYNC) on hungup file n_tty: Fix stuck write wakeup n_tty: Remove tty count checks from unthrottle tty: n_tty: fix SIGIO for output drivers/tty/n_tty.c | 49 +++++------------------------------------------ drivers/tty/tty_io.c | 19 +++++++++--------- include/linux/tty_ldisc.h | 6 ------ 3 files changed, 14 insertions(+), 60 deletions(-) -- 2.7.0