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[0/2] watchdog: Provide user control over WDOG_STOP_ON_REBOOT

Message ID 20200213175958.105914-1-dima@arista.com (mailing list archive)
Headers show
Series watchdog: Provide user control over WDOG_STOP_ON_REBOOT | expand

Message

Dmitry Safonov Feb. 13, 2020, 5:59 p.m. UTC 
Add WDIOS_RUN_ON_REBOOT and WDIOS_STOP_ON_REBOOT to control the
watchdog's behavior over reboot.

Changes since RFC:
o rebase over v5.6
o fixed return code for ioctl()

I've sent RFC a while ago and it probably was very late in release
cycle to catch any attention:
https://lkml.kernel.org/r/20200121162145.166334-1-dima@arista.com

While waiting for rc1, I've changed my mind that it's RFC material and
sending it as PATCHv1 instead.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: linux-watchdog@vger.kernel.org

Dmitry Safonov (2):
  watchdog: Check WDOG_STOP_ON_REBOOT in reboot notifier
  watchdog/uapi: Add WDIOS_{RUN,STOP}_ON_REBOOT

 drivers/watchdog/watchdog_core.c | 27 +++++++++++++--------------
 drivers/watchdog/watchdog_dev.c  | 12 ++++++++++++
 include/linux/watchdog.h         |  6 ++++++
 include/uapi/linux/watchdog.h    |  3 ++-
 4 files changed, 33 insertions(+), 15 deletions(-)