C Programming 原文链接:https://linuxhint.com/using_mmap_function_linux/ How to use mmap function in C language? 3 years ago by Bamdeb Ghosh The
In this article, we are going to discuss how to use the mmap() function in Linux. So, let’s get started. Header File: #include <sys/mman.h> Syntax: void * mmap (void *address, size_t length, int protect, int flags, int filedes, off_t offset) Arguments: The function takes ...
Assisted dying in the UK. The importance of planning in end-of-life care. 2017-05-19 How do I call a program in C, setting up standard pipes? A C function to create a new process, set up its standard input/output/error pipes, and return a struct containing the process ID and ...
struct mm_struct { // 文件映射与匿名映射区的起始地址,无论在经典布局下还是在新布局下,起始地址最终都会设置在这里 unsigned long mmap_base; /* base of mmap area */ // 文件映射与匿名映射区在经典布局下的起始地址 unsigned long mmap_legacy_base; /* base of mmap area in bottom-up allocations ...
在2.6.22内核之后，slub取代slab成为默认的内存分配器。空间和时间上都有所提升。
*/structanon_vma*anon_vma;/* Serialized by page_table_lock *//* Function pointers to deal with this struct. *//** * 指向线性区的方法。 */structvm_operations_struct* vm_ops;/* Information about our backing store: *//** * 在映射文件中的偏移量(以页为单位)。对匿名页,它等于0或vm_...
In this paper, we focus on an optical packet switch with recirculating FDL buffers and wavelength converters. We introduce the Markovian arrival process with marked transitions (MMAP), which has very desirable properties as a traffic model for OPS performance assessment. Using this model, we ...
In kernels before 2.6.7, theMAP_POPULATEflag only has effect ifprotis specified asPROT_NONE. SEE ALSO getpagesize (2) mincore (2) mlock (2) mmap2 (2) mremap (2) msync (2) remap_file_pages (2) setrlimit (2) Print Page Previous ...
Since prev will be set later in the function, it is better to reverse the splitting direction of the start VMA (modify the new_below argument to __split_vma). Using the vma_iter_prev_range() to walk back to the correct location in the tree will, on the most part, mean walking ...
The error unrolling was leaving the VMAs detached in many cases and leaving the locked_vm statistic altered, and skipping the unrolling entirely in the case of the vma tree write failing. Fix the error path by re-attaching the detached VMAs and adding the necessary goto for the failed vma...