mountdata.h File Reference

Defenition of the structures which are related to a mount point. More...

#include <linux/list.h>
#include <linux/rwsem.h>
#include <linux/kernel.h>
#include <linux/mount.h>
#include <asm/atomic.h>
#include <linux/fs.h>

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Data Structures
struct	mumu_mount_data
	The structure is created once per mounted FS. More...
Defines
#define	DEFAULTMAXBLOCKSIZE   (32 * 1024)
#define	DEFAULTMAXENTRIES   (64 * 1024)
Functions
int	mumufs_parse_opt (char *opt, struct mumu_mount_data *d)
	parses mount parameters and fills the mumu_mount_data structure
int	mumufs_show_options (struct seq_file *m, struct vfsmount *mnt)
	shows the options which were used when the FS was mounted
int	mumufs_init_mount_data (struct mumu_mount_data *d)
	initialises mount point data
int	mumufs_umount_cleanup (struct super_block *sb)
	cleans up the mount point related data

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Detailed Description

Defenition of the structures which are related to a mount point.

Author:

Sergey Satskiy Copyright (C) 2007 - 2009 Sergey Satskiy.

This file is released under the GPL.

Definition in file mountdata.h.

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Define Documentation

#define DEFAULTMAXBLOCKSIZE   (32 * 1024)

Default limitation: max block size

Definition at line 36 of file mountdata.h.

Referenced by mumufs_parse_opt().

#define DEFAULTMAXENTRIES   (64 * 1024)

Default limitation: max number of entries

Definition at line 39 of file mountdata.h.

Referenced by mumufs_parse_opt().

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Function Documentation

int mumufs_init_mount_data

(

struct mumu_mount_data *

d

)

initialises mount point data

Parameters:

d

mount point data structure pointer

Returns:

0 - success, !0 otherwise

Definition at line 118 of file mountdata.c.

References mumu_mount_data::mount, and mumu_mount_data::number_of_entries.

int mumufs_parse_opt	(	char *	opt,
		struct mumu_mount_data *	d
	)

parses mount parameters and fills the mumu_mount_data structure

Parameters:

	opt	mount parameters
	d	pointer to a structure where mount parameters are stored

Returns:

0 - success, !0 otherwise

Definition at line 53 of file mountdata.c.

References DEFAULTMAXBLOCKSIZE, DEFAULTMAXENTRIES, mumu_mount_data::max_block_size, mumu_mount_data::max_entries, OPT_MAX_BLOCK_SIZE, and OPT_MAX_ENTRIES.

int mumufs_show_options	(	struct seq_file *	m,
		struct vfsmount *	mnt
	)

shows the options which were used when the FS was mounted

Parameters:

	m	area to print into
	mnt	mount point

Returns:

0 - success, !0 otherwise

Definition at line 99 of file mountdata.c.

References mumu_mount_data::max_block_size, and mumu_mount_data::max_entries.

int mumufs_umount_cleanup

(

struct super_block *

sb

)

cleans up the mount point related data

Parameters:

sb

superblock pointer

Returns:

0 - success, !0 otherwise

Definition at line 132 of file mountdata.c.

References mumu_mount_data::mount.