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Merge "libsnapshot: Check if OTA update in progress during reboot" into main

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This commit is contained in:
Akilesh Kailash 2023-11-14 20:14:57 +00:00 committed by Gerrit Code Review
commit 41305c3870
1 changed files with 21 additions and 23 deletions
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44
fs_mgr/libsnapshot/snapshot.cpp
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@ -4339,32 +4339,30 @@ std::string SnapshotManager::ReadSourceBuildFingerprint() {
}
bool SnapshotManager::IsUserspaceSnapshotUpdateInProgress() {
auto slot = GetCurrentSlot();
if (slot == Slot::Target) {
// Merge in-progress
if (IsSnapuserdRequired()) {
// We cannot grab /metadata/ota lock here as this
// is in reboot path. See b/308900853
//
// Check if any of the partitions are mounted
// off dm-user block device. If so, then we are certain
// that OTA update in progress.
auto current_suffix = device_->GetSlotSuffix();
auto& dm = DeviceMapper::Instance();
auto dm_block_devices = dm.FindDmPartitions();
if (dm_block_devices.empty()) {
LOG(ERROR) << "No dm-enabled block device is found.";
return false;
}
for (auto& partition : dm_block_devices) {
std::string partition_name = partition.first + current_suffix;
DeviceMapper::TargetInfo snap_target;
if (!GetSingleTarget(partition_name, TableQuery::Status, &snap_target)) {
return false;
}
auto type = DeviceMapper::GetTargetType(snap_target.spec);
if (type == "user") {
return true;
}
}
// Let's check more deeper to see if snapshots are mounted
auto lock = LockExclusive();
if (!lock) {
return false;
}
std::vector<std::string> snapshots;
if (!ListSnapshots(lock.get(), &snapshots)) {
return false;
}
for (const auto& snapshot : snapshots) {
// Active snapshot and daemon is alive
if (IsSnapshotDevice(snapshot) && EnsureSnapuserdConnected(2s)) {
return true;
}
}
return false;
}