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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>
This commit is contained in:
Kent Overstreet 2024-02-09 01:04:38 -05:00
parent 8f9320d3a3
commit 5c3273ec3c
1 changed files with 1 additions and 0 deletions
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kernel/hung_task.c
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@ -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: