diff mbox series

[09/10] kernel/hung_task.c: export sysctl_hung_task_timeout_secs

Message ID 170873669034.1861398.8097801489286284855.stgit@frogsfrogsfrogs
State New
Headers
Series [01/10] bcachefs: thread_with_stdio: eliminate double buffering |

Commit Message

Darrick J. Wong Feb. 24, 2024, 1:16 a.m. UTC 
  From: Kent Overstreet <kent.overstreet@linux.dev>

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>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 kernel/hung_task.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

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: