#include <linux/lglock.h>

Data Structures
struct	open_flags

Functions
void __init	chrdev_init (void)

int	__inode_permission (struct inode *, int)

int	copy_mount_options (const void __user , unsigned long )

int	copy_mount_string (const void __user , char *)

struct vfsmount *	lookup_mnt (struct path *)

int	finish_automount (struct vfsmount , struct path )

int	sb_prepare_remount_readonly (struct super_block *)

void __init	mnt_init (void)

int	__mnt_want_write (struct vfsmount *)

int	__mnt_want_write_file (struct file *)

void	__mnt_drop_write (struct vfsmount *)

void	__mnt_drop_write_file (struct file *)

void	chroot_fs_refs (struct path , struct path )

void	file_sb_list_add (struct file f, struct super_block sb)

void	file_sb_list_del (struct file *f)

void	mark_files_ro (struct super_block *)

struct file *	get_empty_filp (void)

int	do_remount_sb (struct super_block , int, void , int)

bool	grab_super_passive (struct super_block *sb)

struct dentry *	mount_fs (struct file_system_type , int, const char , void *)

struct super_block *	user_get_super (dev_t)

struct file *	do_filp_open (int dfd, struct filename pathname, const struct open_flags op, int flags)

struct file *	do_file_open_root (struct dentry , struct vfsmount , const char , const struct open_flags , int lookup_flags)

long	do_handle_open (int mountdirfd, struct file_handle __user *ufh, int open_flag)

int	open_check_o_direct (struct file *f)

void	inode_add_lru (struct inode *inode)

void	inode_wb_list_del (struct inode *inode)

int	get_nr_dirty_inodes (void)

void	evict_inodes (struct super_block *)

int	invalidate_inodes (struct super_block *, bool)

struct dentry *	__d_alloc (struct super_block , const struct qstr )

Variables
struct lglock	vfsmount_lock

spinlock_t	inode_sb_list_lock

Function Documentation

struct dentry* __d_alloc	(	struct super_block *	,
		const struct qstr *
	)

read

Definition at line 1274 of file dcache.c.

int __inode_permission	(	struct inode *	inode,
		int	mask
	)

__inode_permission - Check for access rights to a given inode : Inode to check permission on : Right to check for (MAY_READ, MAY_WRITE, MAY_EXEC)

Check for read/write/execute permissions on an inode.

When checking for MAY_APPEND, MAY_WRITE must also be set in .

This does not check for a read-only file system. You probably want inode_permission().

Definition at line 383 of file namei.c.

void __mnt_drop_write ( struct vfsmount * mnt )

__mnt_drop_write - give up write access to a mount : the mount on which to give up write access

Tells the low-level filesystem that we are done performing writes to it. Must be matched with __mnt_want_write() call above.

Definition at line 420 of file namespace.c.

void __mnt_drop_write_file ( struct file * )

Definition at line 442 of file namespace.c.

int __mnt_want_write ( struct vfsmount * m )

__mnt_want_write - get write access to a mount without freeze protection : the mount on which to take a write

This tells the low-level filesystem that a write is about to be performed to it, and makes sure that writes are allowed (mnt it read-write) before returning success. This operation does not protect against filesystem being frozen. When the write operation is finished, __mnt_drop_write() must be called. This is effectively a refcount.

Definition at line 301 of file namespace.c.

int __mnt_want_write_file ( struct file * )

Definition at line 383 of file namespace.c.

void __init chrdev_init ( void )

Definition at line 574 of file char_dev.c.

void chroot_fs_refs	(	struct path *	,
		struct path *
	)

Definition at line 56 of file fs_struct.c.

int copy_mount_options	(	const void __user *	,
		unsigned long *
	)

Definition at line 2130 of file namespace.c.

int copy_mount_string	(	const void __user *	,
		char **
	)

Definition at line 2163 of file namespace.c.

struct file* do_file_open_root	(	struct dentry *	,
		struct vfsmount *	,
		const char *	,
		const struct open_flags *	,
		int	lookup_flags
	)

read

Definition at line 3024 of file namei.c.

struct file* do_filp_open	(	int	dfd,
		struct filename *	pathname,
		const struct open_flags *	op,
		int	flags
	)

read

Definition at line 3010 of file namei.c.

long do_handle_open	(	int	mountdirfd,
		struct file_handle __user *	ufh,
		int	open_flag
	)

Definition at line 213 of file fhandle.c.

int do_remount_sb	(	struct super_block *	sb,
		int	flags,
		void *	data,
		int	force
	)

do_remount_sb - asks filesystem to change mount options. : superblock in question : numeric part of options : the rest of options : whether or not to force the change

Alters the mount options of a mounted file system.

Definition at line 711 of file super.c.

void evict_inodes ( struct super_block * sb )

evict_inodes - evict all evictable inodes for a superblock : superblock to operate on

Make sure that no inodes with zero refcount are retained. This is called by superblock shutdown after having MS_ACTIVE flag removed, so any inode reaching zero refcount during or after that call will be immediately evicted.

Definition at line 604 of file inode.c.

void file_sb_list_add	(	struct file *	f,
		struct super_block *	sb
	)

Definition at line 383 of file file_table.c.

void file_sb_list_del ( struct file * f )

Definition at line 397 of file file_table.c.

int finish_automount	(	struct vfsmount *	,
		struct path *
	)

Definition at line 1943 of file namespace.c.

struct file* get_empty_filp ( void )

read

Definition at line 106 of file file_table.c.

int get_nr_dirty_inodes ( void )

Definition at line 96 of file inode.c.

bool grab_super_passive ( struct super_block * sb )

Definition at line 369 of file super.c.

void inode_add_lru ( struct inode * inode )

Definition at line 416 of file inode.c.

void inode_wb_list_del ( struct inode * inode )

Definition at line 188 of file fs-writeback.c.

int invalidate_inodes	(	struct super_block *	sb,
		bool	kill_dirty
	)

invalidate_inodes - attempt to free all inodes on a superblock : superblock to operate on : flag to guide handling of dirty inodes

Attempts to free all inodes for a given superblock. If there were any busy inodes return a non-zero value, else zero. If is set, discard dirty inodes too, otherwise treat them as busy.

Definition at line 640 of file inode.c.

struct vfsmount* lookup_mnt ( struct path * )

read

Definition at line 590 of file namespace.c.

void mark_files_ro ( struct super_block * sb )

mark_files_ro - mark all files read-only : superblock in question

All files are marked read-only. We don't care about pending delete files so this should be used in 'force' mode only.

Definition at line 444 of file file_table.c.

void __init mnt_init ( void )

Definition at line 2605 of file namespace.c.

struct dentry* mount_fs	(	struct file_system_type *	,
		int	,
		const char *	,
		void *
	)

read

Definition at line 1094 of file super.c.

int open_check_o_direct ( struct file * f )

Definition at line 629 of file open.c.

int sb_prepare_remount_readonly ( struct super_block * )

Definition at line 502 of file namespace.c.

struct super_block* user_get_super ( dev_t )

read

Definition at line 675 of file super.c.

Variable Documentation

spinlock_t inode_sb_list_lock

struct lglock vfsmount_lock

Data Structures

Functions

Variables

Function Documentation

Variable Documentation