Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\huge_mm.h Create Date:2022-07-28 05:43:24
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:is_huge_zero_pmd

Proto:static inline bool is_huge_zero_pmd(pmd_t pmd)

Type:bool

Parameter:

TypeParameterName
pmd_tpmd
255  Return is_huge_zero_page(pmd_page(pmd))
Caller
NameDescribe
vm_normal_page_pmd
madvise_cold_or_pageout_pte_range
insert_pfn_pmd
copy_huge_pmd
do_huge_pmd_wp_page
follow_trans_huge_pmd
madvise_free_huge_pmdReturn true if we do MADV_FREE successfully on entire pmd page.* Otherwise, return false.
zap_huge_pmd
change_huge_pmdReturns* - 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
__split_huge_pmd_locked