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Commit 1681c731 authored by David Anderson's avatar David Anderson Committed by Automerger Merge Worker
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Merge "snapuserd: Return void from RespondIOError." into main am: 9b567001 am: 87242440 

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2633934



Change-Id: I15800341364836678e14dfabaca25266808aa8e8
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 02bea289 87242440

fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_core.h

+1 −1
Original line number Diff line number Diff line
@@ -134,7 +134,7 @@ class Worker { 
    bool ReadUnalignedSector(sector_t sector, size_t size);

    int ReadUnalignedSector(sector_t sector, size_t size,

                            std::vector<std::pair<sector_t, const CowOperation*>>::iterator& it);

    bool RespondIOError();

    void RespondIOError();



    // Processing COW operations

    bool ProcessCowOp(const CowOperation* cow_op);

fs_mgr/libsnapshot/snapuserd/user-space-merge/snapuserd_dm_user.cpp

+7 −16
Original line number Diff line number Diff line
@@ -392,10 +392,7 @@ bool Worker::ReadAlignedSector(sector_t sector, size_t sz) { 


            // Just return the header if it is an error

            if (header->type == DM_USER_RESP_ERROR) {

                if (!RespondIOError()) {

                    return false;

                }



                RespondIOError();

                io_error = true;

                break;

            }
@@ -537,7 +534,7 @@ bool Worker::ReadUnalignedSector(sector_t sector, size_t size) { 
        if (ret < 0) {

            SNAP_LOG(ERROR) << "ReadUnalignedSector failed for sector: " << sector

                            << " size: " << size << " it->sector: " << it->first;

            return RespondIOError();

            return false;

        }



        remaining_size -= ret;
@@ -565,7 +562,7 @@ bool Worker::ReadUnalignedSector(sector_t sector, size_t size) { 
        CHECK(diff_size <= BLOCK_SZ);

        if (remaining_size < diff_size) {

            if (!ReadDataFromBaseDevice(sector, remaining_size)) {

                return RespondIOError();

                return false;

            }

            total_bytes_read += remaining_size;
@@ -574,7 +571,7 @@ bool Worker::ReadUnalignedSector(sector_t sector, size_t size) { 
            }

        } else {

            if (!ReadDataFromBaseDevice(sector, diff_size)) {

                return RespondIOError();

                return false;

            }



            total_bytes_read += diff_size;
@@ -596,7 +593,7 @@ bool Worker::ReadUnalignedSector(sector_t sector, size_t size) { 
    return true;

}



bool Worker::RespondIOError() {

void Worker::RespondIOError() {

    struct dm_user_header* header = bufsink_.GetHeaderPtr();

    header->type = DM_USER_RESP_ERROR;

    // This is an issue with the dm-user interface. There
@@ -610,13 +607,7 @@ bool Worker::RespondIOError() { 
    // TODO: Fix the interface

    CHECK(header_response_);



    if (!WriteDmUserPayload(0)) {

        return false;

    }



    // There is no need to process further as we have already seen

    // an I/O error

    return true;

    WriteDmUserPayload(0);

}



bool Worker::DmuserReadRequest() {
@@ -624,7 +615,7 @@ bool Worker::DmuserReadRequest() { 


    // Unaligned I/O request

    if (!IsBlockAligned(header->sector << SECTOR_SHIFT)) {

        return ReadUnalignedSector(header->sector, header->len);

        return ReadUnalignedSector(header->sector, header->len) != -1;

    }



    return ReadAlignedSector(header->sector, header->len);