fd285d2b70
Controllers listed in cgroups.json file might fail to mount if kernel is not configured to support them. We need a way to indicate whether a controller was successfully mounted and is usable to avoid logging errors and warnings when a controller that failed to mount is being used. Add flags bitmask to cgrouprc controller descriptor and use a bit to indicate that controller is successfully mounted. Modify cpusets_enabled() and schedboost_enabled() functions to use this bit and report the actual availability of the controller. Bug: 124080437 Test: libcutils_test with cpuset and schedtune controllers disabled Change-Id: I770cc39fe50465146e3205aacf77dc3c56923c5d Signed-off-by: Suren Baghdasaryan <surenb@google.com>
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/logging.h>
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#include <android/cgrouprc.h>
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#include "cgrouprc_internal.h"
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// All ACgroupController_* functions implicitly convert the pointer back
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// to the original CgroupController pointer before invoking the member functions.
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uint32_t ACgroupController_getVersion(const ACgroupController* controller) {
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CHECK(controller != nullptr);
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return controller->version();
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}
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uint32_t ACgroupController_getFlags(const ACgroupController* controller) {
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CHECK(controller != nullptr);
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return controller->flags();
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}
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const char* ACgroupController_getName(const ACgroupController* controller) {
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CHECK(controller != nullptr);
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return controller->name();
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}
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const char* ACgroupController_getPath(const ACgroupController* controller) {
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CHECK(controller != nullptr);
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return controller->path();
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}
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