p_xfs_file_operations =(structfile_operations*)kallsyms_lookup_name("xfs_file_operations"); pte_xfs_splice = lookup_address((unsignedlong)p_xfs_file_operations, &level); // change PTE to allow writing set_pte_atomic(pte_xfs_splice, pte_mkwrite(*pte_xfs_splice)); orig_xfs_file_splice_...
Original file line numberDiff line numberDiff line change @@ -633,7 +633,7 @@ static const struct file_operations reader_fops = { .llseek = no_llseek, }; static struct pcmcia_device_id cm4040_ids[] = { static const struct pcmcia_device_id cm4040_ids[] = { PCMCIA_DEVICE_MANF_CARD...
应用程序访问驱动是通过open。read。write,ioctrol等,在驱动程序也存在对应的drv_open。drv_read。drv_write,drv_ioctrol等,一般驱动的编写流程如下: 1.构造文件描述符file_operations结构体。 2.告诉内核,即注册驱动,调用regis... 第10课 struct和union分析 ...
structzpool*zpool) { Expand DownExpand Up@@ -548,7 +548,7 @@ static const struct file_operations zs_stat_size_ops = { .release=single_release, }; staticintzs_pool_stat_create(char*name,structzs_pool*pool) staticintzs_pool_stat_create(constchar*name,structzs_pool*pool) ...
Const LZERROR_PUBLICLOC = (-5) ' insufficient memory for LZFile struct Const LZERROR_GLOBLOCK = (-6) ' bad Global handle Const LZERROR_BADVALUE = (-7) ' input parameter out of range Const LZERROR_UNKNOWNALG = (-8) ' compression algorithm not recognized ...
Normally programs are split into a number of sub-tasks named procedures or functions. These are clearly distinctive pieces of code that perform particular operations. The main program is the basic routine to control the flow of a program and calls other sub-functions. ...
(conststr s,std::size_tn=0,std::size_tc=0){returnn==s.size()?c:'a'<=s[n]&&s[n]<='z'?countlower(s, n+1, c+1):countlower(s, n+1, c);}// An output function that requires a compile-time constant, for testingtemplate<intn>structconstN{constN(){std::cout<<n<<'\n...
TSharedRef<IPropertyHandle> ChildHandle = StructPropertyHandle->GetChildHandle(ChildIndex).ToSharedRef();constFName PropertyName = ChildHandle->GetProperty()->GetFName(); PropertyHandles.Add(PropertyName, ChildHandle); }// Retrieve special case propertiesMinFocalLengthHandle = PropertyHandles.FindChec...
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index c4a769d..e164029 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -713,7 +713,7 @@ DECLARE_FILE_FUNCTIONS(alarm); static struct battery_file { struct file_operations ops; mode_t mode; - cha...
But in many cases you don't know that length at compile time so you can't use such a struct. What is usually done in such cases is to declare a struct where the array size is 0 or 1 and then you need to allocate memory you have to manually calculate the size in bytes by do...