函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\dax.c Create Date:2022-07-29 10:56:28
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：The user has performed a load from a hole in the file

函数原型：static vm_fault_t dax_load_hole(struct xa_state *xas, struct address_space *mapping, void **entry, struct vm_fault *vmf)

返回类型：vm_fault_t

参数：

类型参数名称
struct xa_state *xas
struct address_space *mapping
void **entry
struct vm_fault *vmf
1034  inode等于host
1035  vaddr等于address
1036  pfn等于a default pfn to pfn_t conversion assumes that @pfn is pfn_valid()
1039  entry等于By this point grab_mapping_entry() has ensured that we have a locked entry* of the appropriate size so we don't have to worry about downgrading PMDs to* PTEs
1042  ret等于vmf_insert_mixed(vma, vaddr, pfn)
1043  trace_dax_load_hole(inode, vmf, ret)
1044  返回:ret
调用者
名称描述
dax_iomap_pte_fault