From: Mayank Rungta via B4 Relay <devnull+mrungta.google.com@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Guenter Roeck <linux@roeck-us.net>
Cc: Tzung-Bi Shih <tzungbi@kernel.org>,
Douglas Anderson <dianders@chromium.org>,
linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org,
Mayank Rungta <mrungta@google.com>
Subject: [PATCH 2/2] watchdog: pretimeout: Convert dump pretimeout governor to tristate
Date: Thu, 30 Jul 2026 15:00:22 -0700 [thread overview]
Message-ID: <20260730-export-cpu-backtrace-apis-v1-2-bace8e1cb817@google.com> (raw)
In-Reply-To: <20260730-export-cpu-backtrace-apis-v1-0-bace8e1cb817@google.com>
From: Mayank Rungta <mrungta@google.com>
Commit 645ad41da8b2 ("watchdog: pretimeout: Add "dump" pretimeout
governor") added the "dump" watchdog pretimeout governor, but restricted
it to built-in code because trigger_all_cpu_backtrace() was not exported
to loadable modules.
Now that CPU backtrace APIs are supported for loadable kernel modules
via cpumask_backtrace(), convert WATCHDOG_PRETIMEOUT_GOV_DUMP to
tristate. This allows kernels to deliver the pretimeout governor as a
loadable kernel module.
Signed-off-by: Mayank Rungta <mrungta@google.com>
---
drivers/watchdog/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 9f013d774897..922741dd837c 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -99,8 +99,8 @@ config WATCHDOG_PRETIMEOUT_GOV_SEL
if WATCHDOG_PRETIMEOUT_GOV
config WATCHDOG_PRETIMEOUT_GOV_DUMP
- bool "Dump watchdog pretimeout governor"
- depends on WATCHDOG_CORE=y
+ tristate "Dump watchdog pretimeout governor"
+ depends on WATCHDOG_CORE
default WATCHDOG_CORE
help
Dump watchdog pretimeout governor, all cpu backtrace is
--
2.55.0.508.g3f0d502094-goog
next prev parent reply other threads:[~2026-07-30 22:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-30 22:00 [PATCH 0/2] watchdog: pretimeout: Allow building dump governor as module Mayank Rungta via B4 Relay
2026-07-30 22:00 ` [PATCH 1/2] nmi: Export CPU backtrace APIs for loadable modules Mayank Rungta via B4 Relay
2026-07-31 1:54 ` Doug Anderson
2026-08-06 21:40 ` Guenter Roeck
2026-08-06 23:44 ` Andrew Morton
2026-08-07 3:50 ` Guenter Roeck
2026-07-30 22:00 ` Mayank Rungta via B4 Relay [this message]
2026-07-31 1:55 ` [PATCH 2/2] watchdog: pretimeout: Convert dump pretimeout governor to tristate Doug Anderson
2026-08-01 12:38 ` Tzung-Bi Shih
2026-08-06 21:41 ` Guenter Roeck
2026-08-06 23:44 ` Andrew Morton
2026-08-07 3:50 ` Guenter Roeck
2026-07-30 22:50 ` [PATCH 0/2] watchdog: pretimeout: Allow building dump governor as module Andrew Morton
2026-07-30 23:39 ` Mayank Rungta
2026-07-31 21:01 ` Andrew Morton
2026-07-31 21:19 ` Guenter Roeck
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