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Commit 73b1659a authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "libprocessgroup: Add CgroupGetAttributePathForProcess and CgroupProcs... 

Merge "libprocessgroup: Add CgroupGetAttributePathForProcess and CgroupProcs attribute" into main am: 6ddb8684

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3403426



Change-Id: I7ade699aaa0a614f85362fbd0f5ded1d543b2cc9
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 468d2010 6ddb8684

libprocessgroup/include/processgroup/processgroup.h

+2 −0
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@ bool CgroupGetAttributePath(const std::string& attr_name, std::string* path); 
// Provides the path for an attribute in a specific process group

// Returns false in case of error, true in case of success

bool CgroupGetAttributePathForTask(const std::string& attr_name, pid_t tid, std::string* path);

bool CgroupGetAttributePathForProcess(std::string_view attr_name, uid_t uid, pid_t pid,

                                      std::string &path);



bool SetTaskProfiles(pid_t tid, const std::vector<std::string>& profiles,

                     bool use_fd_cache = false);

libprocessgroup/processgroup.cpp

+17 −0
Original line number Diff line number Diff line
@@ -154,6 +154,23 @@ bool CgroupGetAttributePathForTask(const std::string& attr_name, pid_t tid, std: 
    return true;

}



bool CgroupGetAttributePathForProcess(std::string_view attr_name, uid_t uid, pid_t pid,

                                      std::string &path) {

    const TaskProfiles& tp = TaskProfiles::GetInstance();

    const IProfileAttribute* attr = tp.GetAttribute(attr_name);



    if (attr == nullptr) {

        return false;

    }



    if (!attr->GetPathForProcess(uid, pid, &path)) {

        LOG(ERROR) << "Failed to find cgroup for uid " << uid << " pid " << pid;

        return false;

    }



    return true;

}



bool UsePerAppMemcg() {

    bool low_ram_device = GetBoolProperty("ro.config.low_ram", false);

    return GetBoolProperty("ro.config.per_app_memcg", low_ram_device);

libprocessgroup/profiles/task_profiles.json

+5 −0
Original line number Diff line number Diff line
@@ -81,6 +81,11 @@ 
      "Name": "FreezerState",

      "Controller": "freezer",

      "File": "cgroup.freeze"

    },

    {

      "Name": "CgroupProcs",

      "Controller": "cgroup2",

      "File": "cgroup.procs"

    }

  ],