Merge "libsnapshot: Record COW size(s) in snapshot status file" (6777935a) · Commits · e / os / android_system_core

fs_mgr/libsnapshot/include/libsnapshot/snapshot.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -278,6 +278,9 @@ class SnapshotManager final {
		SnapshotState state;
		uint64_t device_size;
		uint64_t snapshot_size;
		uint64_t cow_partition_size;
		uint64_t cow_file_size;

		// These are non-zero when merging.
		uint64_t sectors_allocated = 0;
		uint64_t metadata_sectors = 0;

fs_mgr/libsnapshot/snapshot.cpp

+14 −3

Original line number	Diff line number	Diff line
		@@ -203,6 +203,7 @@ bool SnapshotManager::CreateSnapshot(LockedFile* lock, const std::string& name,
		.state = SnapshotState::Created,
		.device_size = device_size,
		.snapshot_size = snapshot_size,
		.cow_file_size = cow_size,
		};
		if (!WriteSnapshotStatus(lock, name, status)) {
		PLOG(ERROR) << "Could not write snapshot status: " << name;
		@@ -1314,7 +1315,7 @@ bool SnapshotManager::ReadSnapshotStatus(LockedFile* lock, const std::string& na
		return false;
		}
		auto pieces = android::base::Split(contents, " ");
		if (pieces.size() != 5) {
		if (pieces.size() != 7) {
		LOG(ERROR) << "Invalid status line for snapshot: " << path;
		return false;
		}
		@@ -1337,11 +1338,19 @@ bool SnapshotManager::ReadSnapshotStatus(LockedFile* lock, const std::string& na
		LOG(ERROR) << "Invalid snapshot size in status line for: " << path;
		return false;
		}
		if (!android::base::ParseUint(pieces[3], &status->sectors_allocated)) {
		if (!android::base::ParseUint(pieces[3], &status->cow_partition_size)) {
		LOG(ERROR) << "Invalid cow linear size in status line for: " << path;
		return false;
		}
		if (!android::base::ParseUint(pieces[4], &status->cow_file_size)) {
		LOG(ERROR) << "Invalid cow file size in status line for: " << path;
		return false;
		}
		if (!android::base::ParseUint(pieces[5], &status->sectors_allocated)) {
		LOG(ERROR) << "Invalid snapshot size in status line for: " << path;
		return false;
		}
		if (!android::base::ParseUint(pieces[4], &status->metadata_sectors)) {
		if (!android::base::ParseUint(pieces[6], &status->metadata_sectors)) {
		LOG(ERROR) << "Invalid snapshot size in status line for: " << path;
		return false;
		}
		@@ -1379,6 +1388,8 @@ bool SnapshotManager::WriteSnapshotStatus(LockedFile* lock, const std::string& n
		to_string(status.state),
		std::to_string(status.device_size),
		std::to_string(status.snapshot_size),
		std::to_string(status.cow_partition_size),
		std::to_string(status.cow_file_size),
		std::to_string(status.sectors_allocated),
		std::to_string(status.metadata_sectors),
		};