Charan Teja Reddy f038b94806 mm: oom_kill: reap memory of a task that receives SIGKILL ...

Free the pages parallely for a task that receives SIGKILL using the
oom_reaper. This freeing of pages will help to give the pages to buddy
system well advance.
This reaps for the process which received SIGKILL through
either sys_kill from user or kill_pid from kernel and that sending
process has CAP_KILL capability.
Also sysctl interface, reap_mem_on_sigkill, is added to turn on/off this
feature.

[ExactExampl]: make it enabled by default

Change-Id: I21adb95de5e380a80d7eb0b87d9b5b553f52e28a
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
(cherry picked from commit f9920cfa7ecf420e6a1ced2b53920f3ea9ddfc19)

2024-08-13 23:14:33 +05:30

75 KiB

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