jfs_metapage.c File Reference

#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/bio.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/buffer_head.h>
#include <linux/mempool.h>
#include <linux/seq_file.h>
#include "jfs_incore.h"
#include "jfs_superblock.h"
#include "jfs_filsys.h"
#include "jfs_metapage.h"
#include "jfs_txnmgr.h"
#include "jfs_debug.h"

Go to the source code of this file.

Macros
#define	metapage_locked(mp)   test_bit(META_locked, &(mp)->flag)
#define	trylock_metapage(mp)   test_and_set_bit_lock(META_locked, &(mp)->flag)
#define	METAPOOL_MIN_PAGES   32
#define	MPS_PER_PAGE   (PAGE_CACHE_SIZE >> L2PSIZE)
#define	inc_io(page)   do {} while(0)
#define	dec_io(page, handler)   handler(page)

Functions
int __init	metapage_init (void)
void	metapage_exit (void)
struct metapage *	__get_metapage (struct inode *inode, unsigned long lblock, unsigned int size, int absolute, unsigned long new)
void	grab_metapage (struct metapage *mp)
void	force_metapage (struct metapage *mp)
void	hold_metapage (struct metapage *mp)
void	put_metapage (struct metapage *mp)
void	release_metapage (struct metapage *mp)
void	__invalidate_metapages (struct inode *ip, s64 addr, int len)

Variables
struct address_space_operations	jfs_metapage_aops

Macro Definition Documentation

#define dec_io	(		page,
			handler
	)		handler(page)

Definition at line 182 of file jfs_metapage.c.

#define inc_io

(

page

)

do {} while(0)

Definition at line 181 of file jfs_metapage.c.

#define metapage_locked

(

mp

)

test_bit(META_locked, &(mp)->flag)

Definition at line 44 of file jfs_metapage.c.

#define METAPOOL_MIN_PAGES   32

Definition at line 79 of file jfs_metapage.c.

#define MPS_PER_PAGE   (PAGE_CACHE_SIZE >> L2PSIZE)

Definition at line 83 of file jfs_metapage.c.

#define trylock_metapage

(

mp

)

test_and_set_bit_lock(META_locked, &(mp)->flag)

Definition at line 45 of file jfs_metapage.c.

Function Documentation

struct metapage* __get_metapage ( struct inode *  inode, unsigned long  lblock, unsigned int  size, int  absolute, unsigned long  new  )

read

Definition at line 591 of file jfs_metapage.c.

void __invalidate_metapages	(	struct inode *	ip,
		s64	addr,
		int	len
	)

Definition at line 776 of file jfs_metapage.c.

void force_metapage

(

struct metapage *

mp

)

Definition at line 709 of file jfs_metapage.c.

void grab_metapage

(

struct metapage *

mp

)

Definition at line 699 of file jfs_metapage.c.

void hold_metapage

(

struct metapage *

mp

)

Definition at line 723 of file jfs_metapage.c.

void metapage_exit

(

void

)

Definition at line 234 of file jfs_metapage.c.

int __init metapage_init

(

void

)

Definition at line 213 of file jfs_metapage.c.

void put_metapage

(

struct metapage *

mp

)

Definition at line 728 of file jfs_metapage.c.

void release_metapage

(

struct metapage *

mp

)

Definition at line 742 of file jfs_metapage.c.

Variable Documentation

struct address_space_operations jfs_metapage_aops

Initial value:

= {
    .readpage   = metapage_readpage,
    .writepage  = metapage_writepage,
    .releasepage    = metapage_releasepage,
    .invalidatepage = metapage_invalidatepage,
    .set_page_dirty = __set_page_dirty_nobuffers,
}

Definition at line 583 of file jfs_metapage.c.