linux-kernel - [PATCH v10 0/4] console: Add persistent scrollback buffers for all VGA consoles

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Message-Id: <20170113200758.9880-1-manuel.schoelling@gmx.de>
Date:   Fri, 13 Jan 2017 21:07:54 +0100
From:   Manuel Schölling <manuel.schoelling@....de>
To:     gregkh@...uxfoundation.org
Cc:     jslaby@...e.com, kilobyte@...band.pl, lkml14@...tdoyle.com,
        rdunlap@...radead.org, shorne@...il.com, andrey_utkin@...tmail.com,
        akpm@...ux-foundation.org, paul.burton@...tec.com,
        daniel.vetter@...ll.ch, tj@...nel.org, hdegoede@...hat.com,
        linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        Manuel Schölling <manuel.schoelling@....de>
Subject: [PATCH v10 0/4] console: Add persistent scrollback buffers for all VGA consoles

Changes in v10:
  - Fix compilation error if CONFIG_VGACON_SOFT_SCROLLBACK=n
Changes in v9:
  - Make persistent scrollback feature a boot parameter
Changes in v8:
  - Add Reviewed-by/Tested-By statements
Changes in v7:
  - Add new callback to consw struct for flushing video console driver's
    scrollback buffer. Fixes issues with escape sequence '\e[3J' reported
    by Adam Borowski (kilobyte@...band.pl).
  - Fix style issues
Changes in v6:
  - Change of check if feature is enabled in 
    vgacon_scrollback_switch()
Changes in v5:
  - Clearify documentation
  - Skip superfluous array initialization
  - Disable scrollback if buffer allocation fails
  - Refactor vgacon_switch_scrollback()
  - Rename vgacon_switch_scrollback() to vgacon_scrollback_switch()
  - Add check for fg_console in vgacon_scrollback_update
Changes in v4.1:
  - Fix compiler error
Changes in v4:
  - Rename from VGACON_SOFT_SCROLLBACK_FOR_EACH_CONSOLE to
    VGACON_SOFT_SCROLLBACK_PERSISTENT
  - Split into two patches
  - Rework documentation
  - Remove cosmetic changes in comments (postponed)
Changes in v3:
  - Add config option for this feature
  - Fallback to old scrollback buffer if kcalloc() fails
  - Remove ioctl() call again and add documentation about existing
    escape sequence to flush the scrollback buffer
Changes in v2:
  - Add ioctl() call to flush scrollback buffer
  - (Patch v2 was not labeled as such, sorry)

Manuel Schölling (4):
  console: Move scrollback data into its own struct
  console: Add callback to flush scrollback buffer to consw struct
  console: Add persistent scrollback buffers for all VGA consoles
  console: Make persistent scrollback a boot parameter

 drivers/tty/vt/vt.c            |   9 +++
 drivers/video/console/Kconfig  |  27 ++++++-
 drivers/video/console/vgacon.c | 164 ++++++++++++++++++++++++++++-------------
 include/linux/console.h        |   4 +
 4 files changed, 149 insertions(+), 55 deletions(-)

-- 
2.11.0