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Merge "Check for /dev/memcg/system/tasks before writing to it"

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Treehugger Robot
2018-07-23 19:21:19 +00:00
committed by Gerrit Code Review
parent a37c252248 98df1b8ef2
commit 36ce625ccf
1 changed files with 4 additions and 1 deletions
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5
core/jni/com_android_internal_os_Zygote.cpp
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@@ -937,7 +937,10 @@ static jint com_android_internal_os_Zygote_nativeForkSystemServer(
} }
// Assign system_server to the correct memory cgroup. // Assign system_server to the correct memory cgroup.
if (!WriteStringToFile(StringPrintf("%d", pid), "/dev/memcg/system/tasks")) { // Not all devices mount /dev/memcg so check for the file first
// to avoid unnecessarily printing errors and denials in the logs.
if (!access("/dev/memcg/system/tasks", F_OK) &&
!WriteStringToFile(StringPrintf("%d", pid), "/dev/memcg/system/tasks")) {
ALOGE("couldn't write %d to /dev/memcg/system/tasks", pid); ALOGE("couldn't write %d to /dev/memcg/system/tasks", pid);
} }
} }