tree 341e45e8588fb86e563f7abdf600cb0f60d94d09
parent 7d04cde921d4bbcbaff157379ad8836f3ead4777
author Charan Teja Reddy <charante@codeaurora.org> 1525186220 +0530
committer Charan Teja Reddy <charante@codeaurora.org> 1542185927 +0530

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.

Change-Id: I21adb95de5e380a80d7eb0b87d9b5b553f52e28a
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>