watchdog: core: add restart handler support

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Many watchdog drivers implement the same code to register a restart
handler. This patch provides a generic way to set such a function.

The patch adds a new restart watchdog operation. If a restart priority
greater than 0 is needed, the driver can call
watchdog_set_restart_priority to set it.

Suggested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

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This commit is contained in:

Damien Riegel 2015-11-16 12:27:59 -05:00 • committed by Wim Van Sebroeck

parent 1f32f83e5d

commit 2165bf524d

3 changed files with 73 additions and 0 deletions

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19

Documentation/watchdog/watchdog-kernel-api.txt

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48

drivers/watchdog/watchdog_core.c

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6

include/linux/watchdog.h

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