pmd_protnone

函数名称：pmd_protnone

函数原型：static inline int pmd_protnone(pmd_t pmd)

返回类型：int

参数：

类型	参数	名称
pmd_t	pmd

**调用者**
名称	描述
follow_pmd_mask
__handle_mm_fault	By 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().
follow_trans_huge_pmd
change_huge_pmd	Returns* - 0 if PMD could not be locked* - 1 if PMD was locked but protections unchange and TLB flush unnecessary* - HPAGE_PMD_NR is protections changed and TLB flush necessary
pmd_to_hmm_pfn_flags
hmm_vma_handle_pmd

函数逻辑报告