函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\relay.c Create Date:2022-07-27 12:51:26
Last Modify:2020-03-17 19:20:22 Copyright©Brick
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函数名称：ault() vm_op implementation for relay file mapping.

函数原型：static vm_fault_t relay_buf_fault(struct vm_fault *vmf)

返回类型：vm_fault_t

参数：

类型参数名称
struct vm_fault *vmf
45  buf等于was vm_pte (shared mem)
46  pgoff等于Logical page offset based on vma
48  如果非buf则返回:VM_FAULT_OOM
51  page等于Support for virtually mapped pages
52  如果非page则返回:VM_FAULT_SIGBUS
54  get_page(page)
55  ->fault handlers should return a* page here, unless VM_FAULT_NOPAGE* is set (which is also implied by* VM_FAULT_ERROR).等于page
57  返回:0