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Commit 191af795 authored by Jaegeuk Kim's avatar Jaegeuk Kim Committed by Gerrit Code Review
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Merge "Use target device mapper given mapper target" into main

parents 91161042 a720fe78

fs_mgr/libdm/dm.cpp

+6 −2
Original line number Diff line number Diff line
@@ -612,8 +612,12 @@ std::string DeviceMapper::GetTargetType(const struct dm_target_spec& spec) { 


std::optional<std::string> ExtractBlockDeviceName(const std::string& path) {

    static constexpr std::string_view kDevBlockPrefix("/dev/block/");

    if (android::base::StartsWith(path, kDevBlockPrefix)) {

        return path.substr(kDevBlockPrefix.length());

    std::string real_path;

    if (!android::base::Realpath(path, &real_path)) {

        real_path = path;

    }

    if (android::base::StartsWith(real_path, kDevBlockPrefix)) {

        return real_path.substr(kDevBlockPrefix.length());

    }

    return {};

}

fs_mgr/libdm/include/libdm/dm.h

+2 −2
Original line number Diff line number Diff line
@@ -52,8 +52,8 @@ enum class DmDeviceState { INVALID, SUSPENDED, ACTIVE }; 


static constexpr uint64_t kSectorSize = 512;



// Returns `path` without /dev/block prefix if and only if `path` starts with

// that prefix.

// Returns `path` without /dev/block prefix if `path` starts with that prefix.

// Or, if `path` is a symlink, do the same with its real path.

std::optional<std::string> ExtractBlockDeviceName(const std::string& path);



// This interface is for testing purposes. See DeviceMapper proper for what these methods do.