commit dd8c2c181b4af625240084505cc584c24b5bf8dd
author Suren Baghdasaryan <surenb@google.com> Wed Jul 08 11:40:10 2020 -0700
committer Martin Liu <liumartin@google.com> Tue Jul 28 09:13:44 2020 +0000
tree 85df973966fe82440d00c9b46784f74aba1465cf
parent 62f4f4262eb32b19d5425947d232866fb1e48499

lmkd: Set default kill timeout to limit waits for uninterruptible processes

When lmkd tries to kill a process in uninterruptible sleep state, it may
need to wait for a long time. To prevent this set the default kill timeout
to 100ms which should work for majority of the devices.

Bug: 160295034
Bug: 161955028
Bug: 162297751
Test: lmkd_unit_test
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ia280dc095df9ca8494278e0a75b976ed93fc04ae
(cherry picked from commit 7d1f4f0047df41f84a1d88ac2f58c6e63645fdf0)
Signed-off-by: Martin Liu <liumartin@google.com>
Merged-In: Ia280dc095df9ca8494278e0a75b976ed93fc04ae

lmkd.cpp

diff --git a/lmkd.cpp b/lmkd.cpp
index 882ae4a..7d06807 100644
--- a/lmkd.cpp
+++ b/lmkd.cpp
@@ -3196,7 +3196,7 @@
         property_get_bool("ro.lmk.kill_heaviest_task", false);
     low_ram_device = property_get_bool("ro.config.low_ram", false);
     kill_timeout_ms =
-        (unsigned long)property_get_int32("ro.lmk.kill_timeout_ms", 0);
+        (unsigned long)property_get_int32("ro.lmk.kill_timeout_ms", 100);
     use_minfree_levels =
         property_get_bool("ro.lmk.use_minfree_levels", false);
     per_app_memcg =