Function Ext2LockVcb

Ext4Fsd/fsctl.c:93–132

}

NTSTATUS
Ext2LockVcb (IN PEXT2_VCB    Vcb,
             IN PFILE_OBJECT FileObject)
{
    NTSTATUS Status = STATUS_SUCCESS;

    __try {

        if (FlagOn(Vcb->Flags, VCB_VOLUME_LOCKED)) {
            DEBUG(DL_INF, ( "Ext2LockVolume: Volume is already locked.\n"));
            Status = STATUS_ACCESS_DENIED;
            __leave;
        }

        if (Vcb->OpenHandleCount > (ULONG)(FileObject ? 1 : 0)) {
            DEBUG(DL_INF, ( "Ext2LockVcb: There are still opened files.\n"));

            Status = STATUS_ACCESS_DENIED;
            __leave;
        }

        if (!Ext2IsHandleCountZero(Vcb)) {
            DEBUG(DL_INF, ( "Ext2LockVcb: Thare are still opened files.\n"));

            Status = STATUS_ACCESS_DENIED;
            __leave;
        }

        SetLongFlag(Vcb->Flags, VCB_VOLUME_LOCKED);
        Ext2SetVpbFlag(Vcb->Vpb, VPB_LOCKED);
        Vcb->LockFile = FileObject;

        DEBUG(DL_INF, ( "Ext2LockVcb: Volume locked.\n"));

    } __finally {
        // Nothing
    }

    return Status;
}


NTSTATUS