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authorWei Wang <wvw@google.com>2019-04-18 14:56:24 -0700
committerWei Wang <wvw@google.com>2019-04-18 16:31:11 -0700
commitbb2bc1586d1de2afec9874fdbeb1e204b996aadf (patch)
tree425d2e548580723822a216eb0be032337bb8fb42 /init/init.cpp
parent84ababefb7b7ec04027b741d7a6fe937cffee54b (diff)
init: set oom_adj early before fork vendor_init
right now vendor_init is forked before we set oom_adj for init which leaves a chance vendor_init could be killed in heavy memory pressure. this CL set the oom_adj before forking everything to ensure all native have correct oom_adj settings. Fixes: 130824864 Test: procrank -o (cherry picked from commit 45d8174fe7b6f35883f74ceefdf591b209f1fab2) Change-Id: I68c18f9db24d55239f7f0608592fcc702f04542e
Diffstat (limited to 'init/init.cpp')
-rw-r--r--init/init.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/init/init.cpp b/init/init.cpp
index 0f44efda4..ac0e67a80 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -630,6 +630,11 @@ int SecondStageMain(int argc, char** argv) {
InitKernelLogging(argv, InitAborter);
LOG(INFO) << "init second stage started!";
+ // Set init and its forked children's oom_adj.
+ if (auto result = WriteFile("/proc/1/oom_score_adj", "-1000"); !result) {
+ LOG(ERROR) << "Unable to write -1000 to /proc/1/oom_score_adj: " << result.error();
+ }
+
// Enable seccomp if global boot option was passed (otherwise it is enabled in zygote).
GlobalSeccomp();