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| author | Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> | 2016-10-07 15:39:55 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2016-10-08 11:27:13 +0300 |
| commit | f77710c4cda01ad9c3672fb2f97bdea9a94da92a (patch) | |
| tree | 95d9c0f16b6270d486f6b3873363799d46a45795 /drivers/watchdog/Kconfig | |
| parent | ff84136cb6a4943f489ad037fe93f43be0573c23 (diff) | |
| download | linux-f77710c4cda01ad9c3672fb2f97bdea9a94da92a.tar.xz | |
watchdog: pretimeout: add noop pretimeout governor
The change adds noop watchdog pretimeout governor, only an
informational message is printed to the kernel log buffer when a
watchdog triggers a pretimeout event.
While introducing the first pretimeout governor the selected design
assumes that the default pretimeout governor is selected by its name
and it is always built-in, thus the default pretimeout governor can
not be unregistered and the correspondent check can be removed from
the watchdog_unregister_governor() function.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/Kconfig')
| -rw-r--r-- | drivers/watchdog/Kconfig | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 04d535ae497d..4aeb8f95beb4 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -1838,4 +1838,32 @@ config WATCHDOG_PRETIMEOUT_GOV help The option allows to select watchdog pretimeout governors. +if WATCHDOG_PRETIMEOUT_GOV + +choice + prompt "Default Watchdog Pretimeout Governor" + default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC + help + This option selects a default watchdog pretimeout governor. + The governor takes its action, if a watchdog is capable + to report a pretimeout event. + +config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP + bool "noop" + select WATCHDOG_PRETIMEOUT_GOV_NOOP + help + Use noop watchdog pretimeout governor by default. If noop + governor is selected by a user, write a short message to + the kernel log buffer and don't do any system changes. + +endchoice + +config WATCHDOG_PRETIMEOUT_GOV_NOOP + tristate "Noop watchdog pretimeout governor" + help + Noop watchdog pretimeout governor, only an informational + message is added to kernel log buffer. + +endif # WATCHDOG_PRETIMEOUT_GOV + endif # WATCHDOG |