linux-kernel - [PATCH RESEND v7 0/3] console: Add persistent scrollback buffers for all VGA consoles

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Date:   Wed, 21 Dec 2016 17:37:35 +0100
From:   Manuel Schölling <manuel.schoelling@....de>
To:     plagnioj@...osoft.com, tomi.valkeinen@...com
Cc:     manuel.schoelling@....de, jslaby@...e.cz,
        gregkh@...uxfoundation.org, andrey_utkin@...tmail.com,
        kilobyte@...band.pl, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH RESEND v7 0/3] console: Add persistent scrollback buffers for all VGA consoles

Reviewed-by: Andrey Utkin <andrey_utkin@...tmail.com>
Tested-by: Andrey Utkin <andrey_utkin@...tmail.com>
Tested-by: Adam Borowski <kilobyte@...band.pl>

--
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 (3):
  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

 drivers/tty/vt/vt.c            |   9 +++
 drivers/video/console/Kconfig  |  25 ++++++-
 drivers/video/console/vgacon.c | 165 ++++++++++++++++++++++++++++-------------
 include/linux/console.h        |   4 +
 4 files changed, 148 insertions(+), 55 deletions(-)

-- 
2.1.4