mmap.c File Reference

#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/module.h>
#include <linux/personality.h>
#include <linux/random.h>
#include <linux/sched.h>

Go to the source code of this file.

Macros
#define	MIN_GAP   (128*1024*1024UL)
#define	MAX_GAP   ((TASK_SIZE)/6*5)
#define	COLOUR_ALIGN(addr, pgoff)

Enumerations
enum	mmap_allocation_direction { UP, DOWN }

Functions
	EXPORT_SYMBOL (shm_align_mask)
unsigned long	arch_get_unmapped_area (struct file *filp, unsigned long addr0, unsigned long len, unsigned long pgoff, unsigned long flags)
unsigned long	arch_get_unmapped_area_topdown (struct file *filp, unsigned long addr0, unsigned long len, unsigned long pgoff, unsigned long flags)
void	arch_pick_mmap_layout (struct mm_struct *mm)
unsigned long	arch_randomize_brk (struct mm_struct *mm)

Variables
unsigned long	shm_align_mask = PAGE_SIZE - 1

Macro Definition Documentation

#define COLOUR_ALIGN	(		addr,
			pgoff
	)

Value:

((((addr) + shm_align_mask) & ~shm_align_mask) +    \
     (((pgoff) << PAGE_SHIFT) & shm_align_mask))

Definition at line 60 of file mmap.c.

#define MAX_GAP   ((TASK_SIZE)/6*5)

Definition at line 23 of file mmap.c.

#define MIN_GAP   (128*1024*1024UL)

Definition at line 22 of file mmap.c.

Enumeration Type Documentation

enum mmap_allocation_direction

Enumerator:

UP
DOWN

Definition at line 64 of file mmap.c.

Function Documentation

unsigned long arch_get_unmapped_area	(	struct file *	filp,
		unsigned long	addr0,
		unsigned long	len,
		unsigned long	pgoff,
		unsigned long	flags
	)

Definition at line 203 of file mmap.c.

unsigned long arch_get_unmapped_area_topdown	(	struct file *	filp,
		unsigned long	addr0,
		unsigned long	len,
		unsigned long	pgoff,
		unsigned long	flags
	)

Definition at line 214 of file mmap.c.

void arch_pick_mmap_layout

(

struct mm_struct *

mm

)

Definition at line 222 of file mmap.c.

unsigned long arch_randomize_brk

(

struct mm_struct *

mm

)

Definition at line 260 of file mmap.c.

EXPORT_SYMBOL

(

shm_align_mask

)

Variable Documentation

unsigned long shm_align_mask = PAGE_SIZE - 1

Definition at line 18 of file mmap.c.