vfs_utils.hpp File Reference

#include "mos/filesystem/vfs_types.hpp"

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Functions
void	inode_init (inode_t *inode, superblock_t *sb, u64 ino, file_type_t type)
inode_t *	inode_create (superblock_t *sb, u64 ino, file_type_t type)
dentry_t *	dentry_get_from_parent (superblock_t *sb, dentry_t *parent, mos::string_view name="")
	Create a new dentry with the given name and parent.
ssize_t	vfs_generic_read (const FsBaseFile *file, void *buf, size_t size, off_t offset)
ssize_t	vfs_generic_write (const FsBaseFile *file, const void *buf, size_t size, off_t offset)
ssize_t	vfs_generic_lseek (const FsBaseFile *file, off_t offset, int whence)
int	vfs_generic_close (const FsBaseFile *file)
phyframe_t *	simple_fill_cache (inode_cache_t *cache, off_t pgoff)
bool	simple_page_write_begin (inode_cache_t *icache, off_t offset, size_t size, phyframe_t **page, void **private_)
void	simple_page_write_end (inode_cache_t *icache, off_t offset, size_t size, phyframe_t *page, void *private_)
long	simple_flush_page_discard_data (inode_cache_t *icache, off_t pgoff, phyframe_t *page)
void	vfs_generic_iterate_dir (const dentry_t *dir, vfs_listdir_state_t *state, dentry_iterator_op op)

Function Documentation

inode_init()

void inode_init	(	inode_t *	inode,
		superblock_t *	sb,
		u64	ino,
		file_type_t	type )

Definition at line 45 of file inode.cpp.

Referenced by cpio_inode_trycreate(), inode_create(), and tmpfs_create_inode().

inode_create()

inode_t * inode_create	(	superblock_t *	sb,
		u64	ino,
		file_type_t	type )

Definition at line 59 of file inode.cpp.

Referenced by i_from_pbfull(), MOS_INIT(), sysfs_create_inode(), sysfs_do_register(), and sysfs_register_file().

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dentry_get_from_parent()

dentry_t * dentry_get_from_parent	(	superblock_t *	sb,
		dentry_t *	parent,
		mos::string_view	name = "" )

Create a new dentry with the given name and parent.

Parameters

sb	The superblock of the dentry
parent	The parent dentry
name	The name of the dentry

Returns

The new dentry, or NULL if the dentry could not be created

Note

The returned dentry will have its reference count of 0.

Definition at line 37 of file vfs_utils.cpp.

Referenced by cpio_mount(), dentry_lookup_child(), ipc_server_close(), memfd_create(), MOS_INIT(), sysfs_do_register(), sysfs_register_file(), tmpfs_fsop_mount(), and userfs_fsop_mount().

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vfs_generic_read()

ssize_t vfs_generic_read	(	const FsBaseFile *	file,
		void *	buf,
		size_t	size,
		off_t	offset )

Definition at line 93 of file vfs_utils.cpp.

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vfs_generic_write()

ssize_t vfs_generic_write	(	const FsBaseFile *	file,
		const void *	buf,
		size_t	size,
		off_t	offset )

Definition at line 103 of file vfs_utils.cpp.

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vfs_generic_lseek()

ssize_t vfs_generic_lseek	(	const FsBaseFile *	file,
		off_t	offset,
		int	whence )

vfs_generic_close()

int vfs_generic_close

(

const FsBaseFile *

file

)

simple_fill_cache()

phyframe_t * simple_fill_cache	(	inode_cache_t *	cache,
		off_t	pgoff )

simple_page_write_begin()

bool simple_page_write_begin	(	inode_cache_t *	icache,
		off_t	offset,
		size_t	size,
		phyframe_t **	page,
		void **	private_ )

Definition at line 62 of file vfs_utils.cpp.

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simple_page_write_end()

void simple_page_write_end	(	inode_cache_t *	icache,
		off_t	offset,
		size_t	size,
		phyframe_t *	page,
		void *	private_ )

Definition at line 74 of file vfs_utils.cpp.

simple_flush_page_discard_data()

long simple_flush_page_discard_data	(	inode_cache_t *	icache,
		off_t	pgoff,
		phyframe_t *	page )

Definition at line 84 of file vfs_utils.cpp.

Referenced by do_flush_and_drop_cached_page().

vfs_generic_iterate_dir()

void vfs_generic_iterate_dir	(	const dentry_t *	dir,
		vfs_listdir_state_t *	state,
		dentry_iterator_op	op )

Definition at line 118 of file vfs_utils.cpp.

Referenced by sysfs_iops_iterate_dir(), and vfs_populate_listdir_buf().

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