函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\huge_mm.h Create Date:2022-07-27 06:44:38
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称： be used on vmas which are known to support THP.* Use transparent_hugepage_enabled otherwise

函数原型：static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)

返回类型：bool

参数：

类型参数名称
struct vm_area_struct *vma
100  如果Flags, see mm.h. 按位与MADV_NOHUGEPAGE marked this vma 则返回:false
103  如果is_vma_temporary_stack(vma)则返回:false
106  如果st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from则返回:false
109  如果transparent_hugepage_flags按位与1左移TRANSPARENT_HUGEPAGE_FLAG位则返回:true
117  如果vma_is_dax(vma)则返回:true
120  如果transparent_hugepage_flags按位与1左移TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG位则返回:非非Flags, see mm.h. 按位与MADV_HUGEPAGE marked this vma 的值
124  返回:false
调用者
名称描述
__handle_mm_faultBy the time we get here, we already hold the mm semaphore* The mmap_sem may have been released depending on flags and our* return value. See filemap_fault() and __lock_page_or_retry().
transparent_hugepage_enabled
do_huge_pmd_wp_page