pgalloc-2level.h

来自「Linux内核源代码 为压缩文件 是<<Linux内核>&gt」· C头文件 代码 · 共 24 行

#ifndef _I386_PGALLOC_2LEVEL_H
#define _I386_PGALLOC_2LEVEL_H

/*
 * traditional i386 two-level paging, page table allocation routines:
 */

extern __inline__ pmd_t *get_pmd_fast(void)
{
	return (pmd_t *)0;
}

extern __inline__ void free_pmd_fast(pmd_t *pmd) { }
extern __inline__ void free_pmd_slow(pmd_t *pmd) { }

extern inline pmd_t * pmd_alloc(pgd_t *pgd, unsigned long address)
{
	if (!pgd)
		BUG();
	return (pmd_t *) pgd;
}

#endif /* _I386_PGALLOC_2LEVEL_H */