linux-kernel - [PATCH v4] console: Add persistent scrollback buffers for all VGA console

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Date:   Wed, 16 Nov 2016 18:38:51 +0100
From:   Manuel Schölling <manuel.schoelling@....de>
To:     plagnioj@...osoft.com, tomi.valkeinen@...com
Cc:     manuel.schoelling@....de, jslaby@...e.cz,
        gregkh@...uxfoundation.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, andrey_utkin@...tmail.com
Subject: [PATCH v4] console: Add persistent scrollback buffers for all VGA console

---
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)