liblp: Add API for adding predetermined linear extents to partitions
Bug: 121210348
Test: manual test
Change-Id: Ie9af456d5193e962a3bcf0cc5dcd22e794d143f6
diff --git a/fs_mgr/liblp/builder.cpp b/fs_mgr/liblp/builder.cpp
index 07f9d66..278331b 100644
--- a/fs_mgr/liblp/builder.cpp
+++ b/fs_mgr/liblp/builder.cpp
@@ -983,5 +983,18 @@
return GetBlockDevicePartitionName(block_devices_[0]) != LP_METADATA_DEFAULT_PARTITION_NAME;
}
+bool MetadataBuilder::AddLinearExtent(Partition* partition, const std::string& block_device,
+ uint64_t num_sectors, uint64_t physical_sector) {
+ uint32_t device_index;
+ if (!FindBlockDeviceByName(block_device, &device_index)) {
+ LERROR << "Could not find backing block device for extent: " << block_device;
+ return false;
+ }
+
+ auto extent = std::make_unique<LinearExtent>(num_sectors, device_index, physical_sector);
+ partition->AddExtent(std::move(extent));
+ return true;
+}
+
} // namespace fs_mgr
} // namespace android
diff --git a/fs_mgr/liblp/include/liblp/builder.h b/fs_mgr/liblp/include/liblp/builder.h
index f477b4b..f16d087 100644
--- a/fs_mgr/liblp/include/liblp/builder.h
+++ b/fs_mgr/liblp/include/liblp/builder.h
@@ -219,6 +219,10 @@
// Find a group by name. If no group is found, nullptr is returned.
PartitionGroup* FindGroup(const std::string& name);
+ // Add a predetermined extent to a partition.
+ bool AddLinearExtent(Partition* partition, const std::string& block_device,
+ uint64_t num_sectors, uint64_t physical_sector);
+
// Grow or shrink a partition to the requested size. This size will be
// rounded UP to the nearest block (512 bytes).
//