sys/src/vmsshmem.c File Reference

#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/devfs_fs_kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/file.h>
#include <linux/swap.h>
#include <linux/pagemap.h>
#include <linux/string.h>
#include <linux/locks.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h>

Go to the source code of this file.

Defines
#define	TMPFS_MAGIC   0x01021994
#define	ENTRIES_PER_PAGE   (PAGE_CACHE_SIZE/sizeof(unsigned long))
#define	SHMEM_SB(sb)   (&sb->u.shmem_sb)
#define	BLOCKS_PER_PAGE   (PAGE_CACHE_SIZE/512)
#define	SHMEM_MAX_BLOCKS   (SHMEM_NR_DIRECT + ENTRIES_PER_PAGE * ENTRIES_PER_PAGE/2*(ENTRIES_PER_PAGE+1))
Functions
	LIST_HEAD (shmem_inodes)
void	shmem_unuse (swp_entry_t entry, struct page *page)
struct page *	shmem_nopage (struct vm_area_struct *vma, unsigned long address, int unused)
void	shmem_lock (struct file *file, int lock)
struct _fcb *	shmem_get_inode (struct super_block *sb, int mode, int dev)
	module_init (init_shmem_fs)
int	shmem_zero_setup (struct vm_area_struct *vma)
	EXPORT_SYMBOL (shmem_file_setup)
Variables
atomic_t	shmem_nrpages = ATOMIC_INIT(0)

---

Define Documentation

#define BLOCKS_PER_PAGE   (PAGE_CACHE_SIZE/512)

Definition at line 58 of file vmsshmem.c.

#define ENTRIES_PER_PAGE   (PAGE_CACHE_SIZE/sizeof(unsigned long))

Definition at line 42 of file vmsshmem.c.

#define SHMEM_MAX_BLOCKS   (SHMEM_NR_DIRECT + ENTRIES_PER_PAGE * ENTRIES_PER_PAGE/2*(ENTRIES_PER_PAGE+1))

Definition at line 136 of file vmsshmem.c.

Referenced by module_init().

#define SHMEM_SB

(

sb

)

(&sb->u.shmem_sb)

Definition at line 44 of file vmsshmem.c.

Referenced by shmem_get_inode().

#define TMPFS_MAGIC   0x01021994

Definition at line 40 of file vmsshmem.c.

---

Function Documentation

EXPORT_SYMBOL

(

shmem_file_setup

)

LIST_HEAD

(

shmem_inodes

)

module_init

(

init_shmem_fs

)

Definition at line 930 of file vmsshmem.c.

References shmem_get_inode(), SHMEM_MAX_BLOCKS, and vm_enough_memory().

struct _fcb* shmem_get_inode	(	struct super_block *	sb,
		int	mode,
		int	dev
	)			[read]

Definition at line 704 of file vmsshmem.c.

References SHMEM_SB.

Referenced by module_init().

void shmem_lock	(	struct file *	file,
		int	lock
	)

Definition at line 679 of file vmsshmem.c.

struct page* shmem_nopage	(	struct vm_area_struct *	vma,
		unsigned long	address,
		int	unused
	)			[read]

Definition at line 660 of file vmsshmem.c.

void shmem_unuse	(	swp_entry_t	entry,
		struct page *	page
	)

Definition at line 411 of file vmsshmem.c.

int shmem_zero_setup

(

struct vm_area_struct *

vma

)

Definition at line 994 of file vmsshmem.c.

Referenced by do_mmap_pgoff().

---

Variable Documentation

atomic_t shmem_nrpages = ATOMIC_INIT(0)

Definition at line 56 of file vmsshmem.c.