The commit is pushed to "branch-rh9-5.14.0-70.22.1.vz9.17.x-ovz" and will
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh9-5.14.0-70.22.1.vz9.17.11
------>
commit 0b9d9d056113db1de9529d3185c2f0b2fba46e1e
Author: Konstantin Khorenko <khore...@virtuozzo.com>
Date: Mon Nov 28 20:13:14 2022 +0300
oom: Cast the lockdep spell in the code
task_will_free_mem() requires the task_lock lock is held or the function
is called on the current, but this is just a function comment,
let's add the proper lockdep check according to this comment.
https://jira.sw.ru/browse/PSBM-143283
Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com>
Suggested-by: Nikolay Borisov <nikolay.bori...@virtuozzo.com>
---
mm/oom_kill.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index e2b57f595418..ebf158ef5cdb 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -829,6 +829,8 @@ static bool task_will_free_mem(struct task_struct *task)
struct task_struct *p;
bool ret = true;
+ lockdep_assert(lockdep_is_held(&task->alloc_lock) || task == current);
+
/*
* Skip tasks without mm because it might have passed its exit_mm and
* exit_oom_victim. oom_reaper could have rescued that but do not rely
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