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Merge "Add support for non-partitioned devices for system"

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Treehugger Robot 2018-02-06 18:39:14 +00:00 committed by Gerrit Code Review
commit 9d6b55928c
1 changed files with 24 additions and 13 deletions
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37
init/init_first_stage.cpp
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@ -56,6 +56,7 @@ class FirstStageMount {
bool InitDevices();
protected:
ListenerAction HandleBlockDevice(const std::string& name, const Uevent&);
bool InitRequiredDevices();
bool InitVerityDevice(const std::string& verity_device);
bool MountPartitions();
@ -209,6 +210,24 @@ bool FirstStageMount::InitRequiredDevices() {
return true;
}
ListenerAction FirstStageMount::HandleBlockDevice(const std::string& name, const Uevent& uevent) {
// Matches partition name to create device nodes.
// Both required_devices_partition_names_ and uevent->partition_name have A/B
// suffix when A/B is used.
auto iter = required_devices_partition_names_.find(name);
if (iter != required_devices_partition_names_.end()) {
LOG(VERBOSE) << __PRETTY_FUNCTION__ << ": found partition: " << *iter;
required_devices_partition_names_.erase(iter);
device_handler_.HandleDeviceEvent(uevent);
if (required_devices_partition_names_.empty()) {
return ListenerAction::kStop;
} else {
return ListenerAction::kContinue;
}
}
return ListenerAction::kContinue;
}
ListenerAction FirstStageMount::UeventCallback(const Uevent& uevent) {
// Ignores everything that is not a block device.
if (uevent.subsystem != "block") {
@ -216,19 +235,11 @@ ListenerAction FirstStageMount::UeventCallback(const Uevent& uevent) {
}
if (!uevent.partition_name.empty()) {
// Matches partition name to create device nodes.
// Both required_devices_partition_names_ and uevent->partition_name have A/B
// suffix when A/B is used.
auto iter = required_devices_partition_names_.find(uevent.partition_name);
if (iter != required_devices_partition_names_.end()) {
LOG(VERBOSE) << __PRETTY_FUNCTION__ << ": found partition: " << *iter;
required_devices_partition_names_.erase(iter);
device_handler_.HandleDeviceEvent(uevent);
if (required_devices_partition_names_.empty()) {
return ListenerAction::kStop;
} else {
return ListenerAction::kContinue;
}
return HandleBlockDevice(uevent.partition_name, uevent);
} else {
size_t base_idx = uevent.path.rfind('/');
if (base_idx != std::string::npos) {
return HandleBlockDevice(uevent.path.substr(base_idx + 1), uevent);
}
}
// Not found a partition or find an unneeded partition, continue to find others.