linux/fs/9p/vfs_addr.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * This file contians vfs address (mmap) ops for 9P2000.
 *
 *  Copyright (C) 2005 by Eric Van Hensbergen <[email protected]>
 *  Copyright (C) 2002 by Ron Minnich <[email protected]>
 */

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/sched.h>
#include <linux/swap.h>
#include <linux/uio.h>
#include <linux/netfs.h>
#include <net/9p/9p.h>
#include <net/9p/client.h>
#include <trace/events/netfs.h>

#include "v9fs.h"
#include "v9fs_vfs.h"
#include "cache.h"
#include "fid.h"

/*
 * Writeback calls this when it finds a folio that needs uploading.  This isn't
 * called if writeback only has copy-to-cache to deal with.
 */
static void v9fs_begin_writeback(struct netfs_io_request *wreq)
{ … }

/*
 * Issue a subrequest to write to the server.
 */
static void v9fs_issue_write(struct netfs_io_subrequest *subreq)
{ … }

/**
 * v9fs_issue_read - Issue a read from 9P
 * @subreq: The read to make
 */
static void v9fs_issue_read(struct netfs_io_subrequest *subreq)
{ … }

/**
 * v9fs_init_request - Initialise a request
 * @rreq: The read request
 * @file: The file being read from
 */
static int v9fs_init_request(struct netfs_io_request *rreq, struct file *file)
{ … }

/**
 * v9fs_free_request - Cleanup request initialized by v9fs_init_rreq
 * @rreq: The I/O request to clean up
 */
static void v9fs_free_request(struct netfs_io_request *rreq)
{ … }

const struct netfs_request_ops v9fs_req_ops = …;

const struct address_space_operations v9fs_addr_operations = …;