cregit-Linux how code gets into the kernel

Release 4.14 arch/um/include/asm/pgalloc.h

/* 
 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
 * Copyright 2003 PathScale, Inc.
 * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
 * Licensed under the GPL
 */

#ifndef __UM_PGALLOC_H

#define __UM_PGALLOC_H

#include <linux/mm.h>


#define pmd_populate_kernel(mm, pmd, pte) \
	set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))


#define pmd_populate(mm, pmd, pte) 				\
	set_pmd(pmd, __pmd(_PAGE_TABLE +                        \
                ((unsigned long long)page_to_pfn(pte) <<        \
                        (unsigned long long) PAGE_SHIFT)))

#define pmd_pgtable(pmd) pmd_page(pmd)

/*
 * Allocate and free page tables.
 */
extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);

extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);


static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { free_page((unsigned long) pte); }

Contributors

PersonTokensPropCommitsCommitProp
Jeff Dike2080.00%150.00%
Benjamin Herrenschmidt520.00%150.00%
Total25100.00%2100.00%


static inline void pte_free(struct mm_struct *mm, pgtable_t pte) { pgtable_page_dtor(pte); __free_page(pte); }

Contributors

PersonTokensPropCommitsCommitProp
Jeff Dike1560.00%133.33%
Martin Schwidefsky624.00%133.33%
Benjamin Herrenschmidt416.00%133.33%
Total25100.00%3100.00%

#define __pte_free_tlb(tlb,pte, address) \ do { \ pgtable_page_dtor(pte); \ tlb_remove_page((tlb),(pte)); \ } while (0) #ifdef CONFIG_3_LEVEL_PGTABLES
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { free_page((unsigned long)pmd); }

Contributors

PersonTokensPropCommitsCommitProp
Jeff Dike2080.00%375.00%
Benjamin Herrenschmidt520.00%125.00%
Total25100.00%4100.00%

#define __pmd_free_tlb(tlb,x, address) tlb_remove_page((tlb),virt_to_page(x)) #endif #define check_pgt_cache() do { } while (0) #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Jeff Dike16180.10%555.56%
Benjamin Herrenschmidt2311.44%222.22%
Martin Schwidefsky167.96%111.11%
Al Viro10.50%111.11%
Total201100.00%9100.00%
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