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Commit 004187ac authored by Daniel Zheng's avatar Daniel Zheng Committed by Gerrit Code Review
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Merge "libsnapshot: add check for updating next_data_pos_" into main

parents 6fe95136 070848b9

fs_mgr/libsnapshot/libsnapshot_cow/writer_v3.cpp

+6 −0
Original line number Diff line number Diff line
@@ -399,8 +399,14 @@ bool CowWriterV3::EmitSequenceData(size_t num_ops, const uint32_t* data) { 
                      "operation writes.";

        return false;

    }



    header_.sequence_data_count = num_ops;



    // Ensure next_data_pos_ is updated as previously initialized + the newly added sequence buffer.

    CHECK_EQ(next_data_pos_ + header_.sequence_data_count * sizeof(uint32_t),

             GetDataOffset(header_));

    next_data_pos_ = GetDataOffset(header_);



    if (!android::base::WriteFullyAtOffset(fd_, data, sizeof(data[0]) * num_ops,

                                           GetSequenceOffset(header_))) {

        PLOG(ERROR) << "writing sequence buffer failed";