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List: linux-api
Subject: [PATCH 3/8] signal: Have the oom killer detect coredumps using signal->core_state
From: "Eric W. Biederman" <ebiederm () xmission ! com>
Date: 2021-12-13 22:53:45
Message-ID: 20211213225350.27481-3-ebiederm () xmission ! com
[Download RAW message or body]
In preparation for removing the flag SIGNAL_GROUP_COREDUMP change
__task_will_free_mem to test signal->core_state instead of the flag
SIGNAL_GROUP_COREDUMP.
Both fields are protected by siglock and both live in signal_struct so
there are no real tradeoffs here, just a change to which field is
being tested.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
---
mm/oom_kill.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 1ddabefcfb5a..5c92aad8ca1a 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -793,7 +793,7 @@ static inline bool __task_will_free_mem(struct task_struct *task)
* coredump_task_exit(), so the oom killer cannot assume that
* the process will promptly exit and release memory.
*/
- if (sig->flags & SIGNAL_GROUP_COREDUMP)
+ if (sig->core_state)
return false;
if (sig->flags & SIGNAL_GROUP_EXIT)
--
2.29.2
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