From 1c024d45151b51c8f8d4749e65958b0bcf3e7c52 Mon Sep 17 00:00:00 2001 From: Alan Maguire Date: Mon, 6 Jan 2020 22:28:21 +0000 Subject: kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds In discussion of how to handle timeouts, it was noted that if sysctl_hung_task_timeout_seconds is exceeded for a kunit test, the test task will be killed and an oops generated. This should suffice as a means of debugging such timeout issues for now. Hence remove use of sysctl_hung_task_timeout_secs, which has the added benefit of avoiding the need to export that symbol from the core kernel. Co-developed-by: Knut Omang Signed-off-by: Knut Omang Signed-off-by: Alan Maguire Reviewed-by: Stephen Boyd Acked-by: Brendan Higgins Signed-off-by: Shuah Khan --- lib/kunit/try-catch.c | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-) (limited to 'lib/kunit') diff --git a/lib/kunit/try-catch.c b/lib/kunit/try-catch.c index 0247a281431a..0dd434e40487 100644 --- a/lib/kunit/try-catch.c +++ b/lib/kunit/try-catch.c @@ -11,7 +11,6 @@ #include #include #include -#include #include "try-catch-impl.h" @@ -33,8 +32,6 @@ static int kunit_generic_run_threadfn_adapter(void *data) static unsigned long kunit_test_timeout(void) { - unsigned long timeout_msecs; - /* * TODO(brendanhiggins@google.com): We should probably have some type of * variable timeout here. The only question is what that timeout value @@ -51,22 +48,11 @@ static unsigned long kunit_test_timeout(void) * * For more background on this topic, see: * https://mike-bland.com/2011/11/01/small-medium-large.html + * + * If tests timeout due to exceeding sysctl_hung_task_timeout_secs, + * the task will be killed and an oops generated. */ - if (sysctl_hung_task_timeout_secs) { - /* - * If sysctl_hung_task is active, just set the timeout to some - * value less than that. - * - * In regards to the above TODO, if we decide on variable - * timeouts, this logic will likely need to change. - */ - timeout_msecs = (sysctl_hung_task_timeout_secs - 1) * - MSEC_PER_SEC; - } else { - timeout_msecs = 300 * MSEC_PER_SEC; /* 5 min */ - } - - return timeout_msecs; + return 300 * MSEC_PER_SEC; /* 5 min */ } void kunit_try_catch_run(struct kunit_try_catch *try_catch, void *context) -- cgit