From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Fri, 9 Feb 2024 06:04:38 +0000 (-0500)
Subject: kernel/hung_task.c: export sysctl_hung_task_timeout_secs
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5c3273ec3c6af356b29ff50a654f0dc33bf25a83;p=linux.git

kernel/hung_task.c: export sysctl_hung_task_timeout_secs

needed for thread_with_file; also rare but not unheard of to need this
in module code, when blocking on user input.

one workaround used by some code is wait_event_interruptible() - but
that can be buggy if the outer context isn't expecting unwinding.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: fuyuanli <fuyuanli@didiglobal.com>
---

diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 9a24574988d23..b2fc2727d6544 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -43,6 +43,7 @@ static int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT;
  * Zero means infinite timeout - no checking done:
  */
 unsigned long __read_mostly sysctl_hung_task_timeout_secs = CONFIG_DEFAULT_HUNG_TASK_TIMEOUT;
+EXPORT_SYMBOL_GPL(sysctl_hung_task_timeout_secs);
 
 /*
  * Zero (default value) means use sysctl_hung_task_timeout_secs: