pmd_present

函数名称：pmd_present

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

返回类型：int

参数：

类型	参数	名称
pmd_t	pmd

763

返回:pmd_flags(pmd)按位与_PAGE_PRESENT按位或_PAGE_PROTNONE按位或_PAGE_PSE的值

**调用者**
名称	描述
ioremap_try_huge_pmd
init_espfix_ap
follow_pmd_mask
get_gate_page
do_fault	We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults)
page_vma_mapped_walk	page_vma_mapped_walk - check if @pvmw->page is mapped in @pvmw->vma at@pvmw->address@pvmw: pointer to struct page_vma_mapped_walk. page, vma, address and flags* must be set. pmd, pte and ptl must be NULL.* Returns true if the page is mapped in the vma
pmdp_huge_clear_flush
mm_find_pmd
madvise_cold_or_pageout_pte_range
kasan_remove_pmd_table
follow_devmap_pmd
madvise_free_huge_pmd	Return true if we do MADV_FREE successfully on entire pmd page.* Otherwise, return false.
zap_huge_pmd
move_huge_pmd
dev_pagemap_mapping_shift
hmm_vma_walk_pmd
userfaultfd_must_wait	Verify the pagetables are still not ok after having reigstered into* the fault_pending_wqh to avoid userland having to UFFDIO_WAKE any* userfault that has already been resolved, if userfaultfd_read and* UFFDIO_COPY\|ZEROPAGE are being run simultaneously on
is_swap_pmd
pmd_none_or_trans_huge_or_clear_bad	This function is meant to be used by sites walking pagetables with* the mmap_sem hold in read mode to protect against MADV_DONTNEED and* transhuge page faults

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码