* needs to know about pmd_trans_huge() pmds */if(walk->pmd_entry) err = walk->pmd_entry(pmd, addr, next, walk);if(err)break;/* * Check this here so we only break down trans_huge * pages when we _need_ to */if(!walk->pte_entry)continue; split_huge_page_pmd(walk->mm, ...
if (pud_trans_huge(orig_pud) || pud_devmap(orig_pud)) { /* NUMA case for anonymous PUDs would go here */ if (dirty && !pud_write(orig_pud)) { ret = wp_huge_pud(&vmf, orig_pud); if (!(ret & VM_FAULT_FALLBACK)) return ret; } else { huge_pud_set_accessed(&vmf, orig...
函数名称:pmd_none 函数原型:static inline int pmd_none(pmd_t pmd) 返回类型:int 参数: 类型参数名称 pmd_tpmd 788val等于native_pmd_val(pmd) 789返回:val按位与_PAGE_KNL_ERRATUM_MASK的反的值恒等于0 源代码转换工具 开放的插件接口X 支持:c/c++/esqlc/java ...
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*/if(pmd_none(pmd) || pmd_trans_splitting(pmd))return0;if(pmd_huge(pmd) || pmd_large(pmd)) {if(!gup_hugepte((pte_t*)pmdp, PMD_SIZE, addr, next, write, pages, nr))return0; }elseif(is_hugepd(pmdp)) {if(!gup_hugepd((hugepd_t*)pmdp, PMD_SHIFT, ...