[linux.git] / fs / nfs / proc.c

/*
 *  linux/fs/nfs/proc.c
 *
 *  Copyright (C) 1992, 1993, 1994  Rick Sladkey
 *
 *  OS-independent nfs remote procedure call functions
 *
 *  Tuned by Alan Cox <[email protected]> for >3K buffers
 *  so at last we can have decent(ish) throughput off a 
 *  Sun server.
 *
 *  Coding optimized and cleaned up by Florian La Roche.
 *  Note: Error returns are optimized for NFS_OK, which isn't translated via
 *  nfs_stat_to_errno(), but happens to be already the right return code.
 *
 *  Also, the code currently doesn't check the size of the packet, when
 *  it decodes the packet.
 *
 *  Feel free to fix it and mail me the diffs if it worries you.
 *
 *  Completely rewritten to support the new RPC call interface;
 *  rewrote and moved the entire XDR stuff to xdr.c
 *  --Olaf Kirch June 1996
 *
 *  The code below initializes all auto variables explicitly, otherwise
 *  it will fail to work as a module (gcc generates a memset call for an
 *  incomplete struct).
 */

#include <linux/types.h>
#include <linux/param.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/utsname.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/in.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/clnt.h>
#include <linux/nfs.h>
#include <linux/nfs2.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
#include <linux/lockd/bind.h>
#include "internal.h"

#define NFSDBG_FACILITY		NFSDBG_PROC

/*
 * Bare-bones access to getattr: this is for nfs_read_super.
 */
static int
nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
		  struct nfs_fsinfo *info)
{
	struct nfs_fattr *fattr = info->fattr;
	struct nfs2_fsstat fsinfo;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_GETATTR],
		.rpc_argp	= fhandle,
		.rpc_resp	= fattr,
	};
	int status;

	dprintk("%s: call getattr\n", __FUNCTION__);
	nfs_fattr_init(fattr);
	status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
	dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
	if (status)
		return status;
	dprintk("%s: call statfs\n", __FUNCTION__);
	msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
	msg.rpc_resp = &fsinfo;
	status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
	dprintk("%s: reply statfs: %d\n", __FUNCTION__, status);
	if (status)
		return status;
	info->rtmax  = NFS_MAXDATA;
	info->rtpref = fsinfo.tsize;
	info->rtmult = fsinfo.bsize;
	info->wtmax  = NFS_MAXDATA;
	info->wtpref = fsinfo.tsize;
	info->wtmult = fsinfo.bsize;
	info->dtpref = fsinfo.tsize;
	info->maxfilesize = 0x7FFFFFFF;
	info->lease_time = 0;
	return 0;
}

/*
 * One function for each procedure in the NFS protocol.
 */
static int
nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
		struct nfs_fattr *fattr)
{
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_GETATTR],
		.rpc_argp	= fhandle,
		.rpc_resp	= fattr,
	};
	int	status;

	dprintk("NFS call  getattr\n");
	nfs_fattr_init(fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	dprintk("NFS reply getattr: %d\n", status);
	return status;
}

static int
nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
		 struct iattr *sattr)
{
	struct inode *inode = dentry->d_inode;
	struct nfs_sattrargs	arg = { 
		.fh	= NFS_FH(inode),
		.sattr	= sattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_SETATTR],
		.rpc_argp	= &arg,
		.rpc_resp	= fattr,
	};
	int	status;

	/* Mask out the non-modebit related stuff from attr->ia_mode */
	sattr->ia_mode &= S_IALLUGO;

	dprintk("NFS call  setattr\n");
	nfs_fattr_init(fattr);
	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
	if (status == 0)
		nfs_setattr_update_inode(inode, sattr);
	dprintk("NFS reply setattr: %d\n", status);
	return status;
}

static int
nfs_proc_lookup(struct inode *dir, struct qstr *name,
		struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
	struct nfs_diropargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= name->name,
		.len		= name->len
	};
	struct nfs_diropok	res = {
		.fh		= fhandle,
		.fattr		= fattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_LOOKUP],
		.rpc_argp	= &arg,
		.rpc_resp	= &res,
	};
	int			status;

	dprintk("NFS call  lookup %s\n", name->name);
	nfs_fattr_init(fattr);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	dprintk("NFS reply lookup: %d\n", status);
	return status;
}

static int nfs_proc_readlink(struct inode *inode, struct page *page,
		unsigned int pgbase, unsigned int pglen)
{
	struct nfs_readlinkargs	args = {
		.fh		= NFS_FH(inode),
		.pgbase		= pgbase,
		.pglen		= pglen,
		.pages		= &page
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_READLINK],
		.rpc_argp	= &args,
	};
	int			status;

	dprintk("NFS call  readlink\n");
	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
	dprintk("NFS reply readlink: %d\n", status);
	return status;
}

static int
nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
		int flags, struct nameidata *nd)
{
	struct nfs_fh		fhandle;
	struct nfs_fattr	fattr;
	struct nfs_createargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= dentry->d_name.name,
		.len		= dentry->d_name.len,
		.sattr		= sattr
	};
	struct nfs_diropok	res = {
		.fh		= &fhandle,
		.fattr		= &fattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_CREATE],
		.rpc_argp	= &arg,
		.rpc_resp	= &res,
	};
	int			status;

	nfs_fattr_init(&fattr);
	dprintk("NFS call  create %s\n", dentry->d_name.name);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	if (status == 0)
		status = nfs_instantiate(dentry, &fhandle, &fattr);
	dprintk("NFS reply create: %d\n", status);
	return status;
}

/*
 * In NFSv2, mknod is grafted onto the create call.
 */
static int
nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
	       dev_t rdev)
{
	struct nfs_fh fhandle;
	struct nfs_fattr fattr;
	struct nfs_createargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= dentry->d_name.name,
		.len		= dentry->d_name.len,
		.sattr		= sattr
	};
	struct nfs_diropok	res = {
		.fh		= &fhandle,
		.fattr		= &fattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_CREATE],
		.rpc_argp	= &arg,
		.rpc_resp	= &res,
	};
	int status, mode;

	dprintk("NFS call  mknod %s\n", dentry->d_name.name);

	mode = sattr->ia_mode;
	if (S_ISFIFO(mode)) {
		sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
		sattr->ia_valid &= ~ATTR_SIZE;
	} else if (S_ISCHR(mode) || S_ISBLK(mode)) {
		sattr->ia_valid |= ATTR_SIZE;
		sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
	}

	nfs_fattr_init(&fattr);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);

	if (status == -EINVAL && S_ISFIFO(mode)) {
		sattr->ia_mode = mode;
		nfs_fattr_init(&fattr);
		status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	}
	if (status == 0)
		status = nfs_instantiate(dentry, &fhandle, &fattr);
	dprintk("NFS reply mknod: %d\n", status);
	return status;
}
  
static int
nfs_proc_remove(struct inode *dir, struct qstr *name)
{
	struct nfs_diropargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= name->name,
		.len		= name->len
	};
	struct rpc_message	msg = { 
		.rpc_proc	= &nfs_procedures[NFSPROC_REMOVE],
		.rpc_argp	= &arg,
	};
	int			status;

	dprintk("NFS call  remove %s\n", name->name);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);

	dprintk("NFS reply remove: %d\n", status);
	return status;
}

static int
nfs_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
{
	struct nfs_diropargs	*arg;

	arg = kmalloc(sizeof(*arg), GFP_KERNEL);
	if (!arg)
		return -ENOMEM;
	arg->fh = NFS_FH(dir->d_inode);
	arg->name = name->name;
	arg->len = name->len;
	msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
	msg->rpc_argp = arg;
	return 0;
}

static int
nfs_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
{
	struct rpc_message *msg = &task->tk_msg;
	
	if (msg->rpc_argp) {
		nfs_mark_for_revalidate(dir->d_inode);
		kfree(msg->rpc_argp);
	}
	return 0;
}

static int
nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
		struct inode *new_dir, struct qstr *new_name)
{
	struct nfs_renameargs	arg = {
		.fromfh		= NFS_FH(old_dir),
		.fromname	= old_name->name,
		.fromlen	= old_name->len,
		.tofh		= NFS_FH(new_dir),
		.toname		= new_name->name,
		.tolen		= new_name->len
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_RENAME],
		.rpc_argp	= &arg,
	};
	int			status;

	dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
	status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
	nfs_mark_for_revalidate(old_dir);
	nfs_mark_for_revalidate(new_dir);
	dprintk("NFS reply rename: %d\n", status);
	return status;
}

static int
nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
{
	struct nfs_linkargs	arg = {
		.fromfh		= NFS_FH(inode),
		.tofh		= NFS_FH(dir),
		.toname		= name->name,
		.tolen		= name->len
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_LINK],
		.rpc_argp	= &arg,
	};
	int			status;

	dprintk("NFS call  link %s\n", name->name);
	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
	nfs_mark_for_revalidate(inode);
	nfs_mark_for_revalidate(dir);
	dprintk("NFS reply link: %d\n", status);
	return status;
}

static int
nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
		 unsigned int len, struct iattr *sattr)
{
	struct nfs_fh fhandle;
	struct nfs_fattr fattr;
	struct nfs_symlinkargs	arg = {
		.fromfh		= NFS_FH(dir),
		.fromname	= dentry->d_name.name,
		.fromlen	= dentry->d_name.len,
		.pages		= &page,
		.pathlen	= len,
		.sattr		= sattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_SYMLINK],
		.rpc_argp	= &arg,
	};
	int			status;

	if (len > NFS2_MAXPATHLEN)
		return -ENAMETOOLONG;

	dprintk("NFS call  symlink %s\n", dentry->d_name.name);

	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);

	/*
	 * V2 SYMLINK requests don't return any attributes.  Setting the
	 * filehandle size to zero indicates to nfs_instantiate that it
	 * should fill in the data with a LOOKUP call on the wire.
	 */
	if (status == 0) {
		nfs_fattr_init(&fattr);
		fhandle.size = 0;
		status = nfs_instantiate(dentry, &fhandle, &fattr);
	}

	dprintk("NFS reply symlink: %d\n", status);
	return status;
}

static int
nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
{
	struct nfs_fh fhandle;
	struct nfs_fattr fattr;
	struct nfs_createargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= dentry->d_name.name,
		.len		= dentry->d_name.len,
		.sattr		= sattr
	};
	struct nfs_diropok	res = {
		.fh		= &fhandle,
		.fattr		= &fattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_MKDIR],
		.rpc_argp	= &arg,
		.rpc_resp	= &res,
	};
	int			status;

	dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
	nfs_fattr_init(&fattr);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);
	if (status == 0)
		status = nfs_instantiate(dentry, &fhandle, &fattr);
	dprintk("NFS reply mkdir: %d\n", status);
	return status;
}

static int
nfs_proc_rmdir(struct inode *dir, struct qstr *name)
{
	struct nfs_diropargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= name->name,
		.len		= name->len
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_RMDIR],
		.rpc_argp	= &arg,
	};
	int			status;

	dprintk("NFS call  rmdir %s\n", name->name);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);
	dprintk("NFS reply rmdir: %d\n", status);
	return status;
}

/*
 * The READDIR implementation is somewhat hackish - we pass a temporary
 * buffer to the encode function, which installs it in the receive
 * the receive iovec. The decode function just parses the reply to make
 * sure it is syntactically correct; the entries itself are decoded
 * from nfs_readdir by calling the decode_entry function directly.
 */
static int
nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
		 u64 cookie, struct page *page, unsigned int count, int plus)
{
	struct inode		*dir = dentry->d_inode;
	struct nfs_readdirargs	arg = {
		.fh		= NFS_FH(dir),
		.cookie		= cookie,
		.count		= count,
		.pages		= &page,
	};
	struct rpc_message	msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_READDIR],
		.rpc_argp	= &arg,
		.rpc_cred	= cred,
	};
	int			status;

	dprintk("NFS call  readdir %d\n", (unsigned int)cookie);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);

	dprintk("NFS reply readdir: %d\n", status);
	return status;
}

static int
nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
			struct nfs_fsstat *stat)
{
	struct nfs2_fsstat fsinfo;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_STATFS],
		.rpc_argp	= fhandle,
		.rpc_resp	= &fsinfo,
	};
	int	status;

	dprintk("NFS call  statfs\n");
	nfs_fattr_init(stat->fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	dprintk("NFS reply statfs: %d\n", status);
	if (status)
		goto out;
	stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize;
	stat->fbytes = (u64)fsinfo.bfree  * fsinfo.bsize;
	stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize;
	stat->tfiles = 0;
	stat->ffiles = 0;
	stat->afiles = 0;
out:
	return status;
}

static int
nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
			struct nfs_fsinfo *info)
{
	struct nfs2_fsstat fsinfo;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_STATFS],
		.rpc_argp	= fhandle,
		.rpc_resp	= &fsinfo,
	};
	int	status;

	dprintk("NFS call  fsinfo\n");
	nfs_fattr_init(info->fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	dprintk("NFS reply fsinfo: %d\n", status);
	if (status)
		goto out;
	info->rtmax  = NFS_MAXDATA;
	info->rtpref = fsinfo.tsize;
	info->rtmult = fsinfo.bsize;
	info->wtmax  = NFS_MAXDATA;
	info->wtpref = fsinfo.tsize;
	info->wtmult = fsinfo.bsize;
	info->dtpref = fsinfo.tsize;
	info->maxfilesize = 0x7FFFFFFF;
	info->lease_time = 0;
out:
	return status;
}

static int
nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
		  struct nfs_pathconf *info)
{
	info->max_link = 0;
	info->max_namelen = NFS2_MAXNAMLEN;
	return 0;
}

static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
{
	if (task->tk_status >= 0) {
		nfs_refresh_inode(data->inode, data->res.fattr);
		/* Emulate the eof flag, which isn't normally needed in NFSv2
		 * as it is guaranteed to always return the file attributes
		 */
		if (data->args.offset + data->args.count >= data->res.fattr->size)
			data->res.eof = 1;
	}
	return 0;
}

static void nfs_proc_read_setup(struct nfs_read_data *data)
{
	struct rpc_message	msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_READ],
		.rpc_argp	= &data->args,
		.rpc_resp	= &data->res,
		.rpc_cred	= data->cred,
	};

	rpc_call_setup(&data->task, &msg, 0);
}

static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
	if (task->tk_status >= 0)
		nfs_post_op_update_inode(data->inode, data->res.fattr);
	return 0;
}

static void nfs_proc_write_setup(struct nfs_write_data *data, int how)
{
	struct rpc_message	msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_WRITE],
		.rpc_argp	= &data->args,
		.rpc_resp	= &data->res,
		.rpc_cred	= data->cred,
	};

	/* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
	data->args.stable = NFS_FILE_SYNC;

	/* Finalize the task. */
	rpc_call_setup(&data->task, &msg, 0);
}

static void
nfs_proc_commit_setup(struct nfs_write_data *data, int how)
{
	BUG();
}

static int
nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
{
	return nlmclnt_proc(filp->f_path.dentry->d_inode, cmd, fl);
}


const struct nfs_rpc_ops nfs_v2_clientops = {
	.version	= 2,		       /* protocol version */
	.dentry_ops	= &nfs_dentry_operations,
	.dir_inode_ops	= &nfs_dir_inode_operations,
	.file_inode_ops	= &nfs_file_inode_operations,
	.getroot	= nfs_proc_get_root,
	.getattr	= nfs_proc_getattr,
	.setattr	= nfs_proc_setattr,
	.lookup		= nfs_proc_lookup,
	.access		= NULL,		       /* access */
	.readlink	= nfs_proc_readlink,
	.create		= nfs_proc_create,
	.remove		= nfs_proc_remove,
	.unlink_setup	= nfs_proc_unlink_setup,
	.unlink_done	= nfs_proc_unlink_done,
	.rename		= nfs_proc_rename,
	.link		= nfs_proc_link,
	.symlink	= nfs_proc_symlink,
	.mkdir		= nfs_proc_mkdir,
	.rmdir		= nfs_proc_rmdir,
	.readdir	= nfs_proc_readdir,
	.mknod		= nfs_proc_mknod,
	.statfs		= nfs_proc_statfs,
	.fsinfo		= nfs_proc_fsinfo,
	.pathconf	= nfs_proc_pathconf,
	.decode_dirent	= nfs_decode_dirent,
	.read_setup	= nfs_proc_read_setup,
	.read_done	= nfs_read_done,
	.write_setup	= nfs_proc_write_setup,
	.write_done	= nfs_write_done,
	.commit_setup	= nfs_proc_commit_setup,
	.file_open	= nfs_open,
	.file_release	= nfs_release,
	.lock		= nfs_proc_lock,
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/fs/nfs/proc.c
	3	*
	4	* Copyright (C) 1992, 1993, 1994 Rick Sladkey
	5	*
	6	* OS-independent nfs remote procedure call functions
	7	*
	8	* Tuned by Alan Cox <[email protected]> for >3K buffers
	9	* so at last we can have decent(ish) throughput off a
	10	* Sun server.
	11	*
	12	* Coding optimized and cleaned up by Florian La Roche.
	13	* Note: Error returns are optimized for NFS_OK, which isn't translated via
	14	* nfs_stat_to_errno(), but happens to be already the right return code.
	15	*
	16	* Also, the code currently doesn't check the size of the packet, when
	17	* it decodes the packet.
	18	*
	19	* Feel free to fix it and mail me the diffs if it worries you.
	20	*
	21	* Completely rewritten to support the new RPC call interface;
	22	* rewrote and moved the entire XDR stuff to xdr.c
	23	* --Olaf Kirch June 1996
	24	*
	25	* The code below initializes all auto variables explicitly, otherwise
	26	* it will fail to work as a module (gcc generates a memset call for an
	27	* incomplete struct).
	28	*/
	29
	30	#include <linux/types.h>
	31	#include <linux/param.h>
	32	#include <linux/slab.h>
	33	#include <linux/time.h>
	34	#include <linux/mm.h>
	35	#include <linux/utsname.h>
	36	#include <linux/errno.h>
	37	#include <linux/string.h>
	38	#include <linux/in.h>
	39	#include <linux/pagemap.h>
	40	#include <linux/sunrpc/clnt.h>
	41	#include <linux/nfs.h>
	42	#include <linux/nfs2.h>
	43	#include <linux/nfs_fs.h>
	44	#include <linux/nfs_page.h>
	45	#include <linux/lockd/bind.h>
f7b422b1	46	#include "internal.h"
1da177e4 LT	47
	48	#define NFSDBG_FACILITY NFSDBG_PROC
	49
1da177e4 LT	50	/*
	51	* Bare-bones access to getattr: this is for nfs_read_super.
	52	*/
	53	static int
	54	nfs_proc_get_root(struct nfs_server server, struct nfs_fh fhandle,
	55	struct nfs_fsinfo *info)
	56	{
	57	struct nfs_fattr *fattr = info->fattr;
	58	struct nfs2_fsstat fsinfo;
dead28da CL	59	struct rpc_message msg = {
	60	.rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
	61	.rpc_argp = fhandle,
	62	.rpc_resp = fattr,
	63	};
1da177e4 LT	64	int status;
	65
	66	dprintk("%s: call getattr\n", __FUNCTION__);
0e574af1	67	nfs_fattr_init(fattr);
5006a76c	68	status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
1da177e4 LT	69	dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
	70	if (status)
	71	return status;
	72	dprintk("%s: call statfs\n", __FUNCTION__);
dead28da CL	73	msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
dead28da CL	74	msg.rpc_resp = &fsinfo;
5006a76c	75	status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
1da177e4 LT	76	dprintk("%s: reply statfs: %d\n", __FUNCTION__, status);
	77	if (status)
	78	return status;
	79	info->rtmax = NFS_MAXDATA;
	80	info->rtpref = fsinfo.tsize;
	81	info->rtmult = fsinfo.bsize;
	82	info->wtmax = NFS_MAXDATA;
	83	info->wtpref = fsinfo.tsize;
	84	info->wtmult = fsinfo.bsize;
	85	info->dtpref = fsinfo.tsize;
	86	info->maxfilesize = 0x7FFFFFFF;
	87	info->lease_time = 0;
	88	return 0;
	89	}
	90
	91	/*
	92	* One function for each procedure in the NFS protocol.
	93	*/
	94	static int
	95	nfs_proc_getattr(struct nfs_server server, struct nfs_fh fhandle,
	96	struct nfs_fattr *fattr)
	97	{
dead28da CL	98	struct rpc_message msg = {
	99	.rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
	100	.rpc_argp = fhandle,
	101	.rpc_resp = fattr,
	102	};
1da177e4 LT	103	int status;
	104
	105	dprintk("NFS call getattr\n");
0e574af1	106	nfs_fattr_init(fattr);
dead28da	107	status = rpc_call_sync(server->client, &msg, 0);
1da177e4 LT	108	dprintk("NFS reply getattr: %d\n", status);
	109	return status;
	110	}
	111
	112	static int
	113	nfs_proc_setattr(struct dentry dentry, struct nfs_fattr fattr,
	114	struct iattr *sattr)
	115	{
	116	struct inode *inode = dentry->d_inode;
	117	struct nfs_sattrargs arg = {
	118	.fh = NFS_FH(inode),
	119	.sattr = sattr
	120	};
dead28da CL	121	struct rpc_message msg = {
	122	.rpc_proc = &nfs_procedures[NFSPROC_SETATTR],
	123	.rpc_argp = &arg,
	124	.rpc_resp = fattr,
	125	};
1da177e4 LT	126	int status;
1da177e4 LT	127
cf3fff54 TM	128	/* Mask out the non-modebit related stuff from attr->ia_mode */
	129	sattr->ia_mode &= S_IALLUGO;
	130
1da177e4	131	dprintk("NFS call setattr\n");
0e574af1	132	nfs_fattr_init(fattr);
dead28da	133	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
65e4308d TM	134	if (status == 0)
65e4308d TM	135	nfs_setattr_update_inode(inode, sattr);
1da177e4 LT	136	dprintk("NFS reply setattr: %d\n", status);
	137	return status;
	138	}
	139
	140	static int
	141	nfs_proc_lookup(struct inode dir, struct qstr name,
	142	struct nfs_fh fhandle, struct nfs_fattr fattr)
	143	{
	144	struct nfs_diropargs arg = {
	145	.fh = NFS_FH(dir),
	146	.name = name->name,
	147	.len = name->len
	148	};
	149	struct nfs_diropok res = {
	150	.fh = fhandle,
	151	.fattr = fattr
	152	};
dead28da CL	153	struct rpc_message msg = {
	154	.rpc_proc = &nfs_procedures[NFSPROC_LOOKUP],
	155	.rpc_argp = &arg,
	156	.rpc_resp = &res,
	157	};
1da177e4 LT	158	int status;
	159
	160	dprintk("NFS call lookup %s\n", name->name);
0e574af1	161	nfs_fattr_init(fattr);
dead28da	162	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
1da177e4 LT	163	dprintk("NFS reply lookup: %d\n", status);
	164	return status;
	165	}
	166
	167	static int nfs_proc_readlink(struct inode inode, struct page page,
	168	unsigned int pgbase, unsigned int pglen)
	169	{
	170	struct nfs_readlinkargs args = {
	171	.fh = NFS_FH(inode),
	172	.pgbase = pgbase,
	173	.pglen = pglen,
	174	.pages = &page
	175	};
dead28da CL	176	struct rpc_message msg = {
	177	.rpc_proc = &nfs_procedures[NFSPROC_READLINK],
	178	.rpc_argp = &args,
	179	};
1da177e4 LT	180	int status;
	181
	182	dprintk("NFS call readlink\n");
dead28da	183	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
1da177e4 LT	184	dprintk("NFS reply readlink: %d\n", status);
	185	return status;
	186	}
	187
1da177e4 LT	188	static int
1da177e4 LT	189	nfs_proc_create(struct inode dir, struct dentry dentry, struct iattr *sattr,
02a913a7	190	int flags, struct nameidata *nd)
1da177e4 LT	191	{
	192	struct nfs_fh fhandle;
	193	struct nfs_fattr fattr;
	194	struct nfs_createargs arg = {
	195	.fh = NFS_FH(dir),
	196	.name = dentry->d_name.name,
	197	.len = dentry->d_name.len,
	198	.sattr = sattr
	199	};
	200	struct nfs_diropok res = {
	201	.fh = &fhandle,
	202	.fattr = &fattr
	203	};
dead28da CL	204	struct rpc_message msg = {
	205	.rpc_proc = &nfs_procedures[NFSPROC_CREATE],
	206	.rpc_argp = &arg,
	207	.rpc_resp = &res,
	208	};
1da177e4 LT	209	int status;
1da177e4 LT	210
0e574af1	211	nfs_fattr_init(&fattr);
1da177e4	212	dprintk("NFS call create %s\n", dentry->d_name.name);
dead28da	213	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
1da177e4 LT	214	if (status == 0)
	215	status = nfs_instantiate(dentry, &fhandle, &fattr);
	216	dprintk("NFS reply create: %d\n", status);
	217	return status;
	218	}
	219
	220	/*
	221	* In NFSv2, mknod is grafted onto the create call.
	222	*/
	223	static int
	224	nfs_proc_mknod(struct inode dir, struct dentry dentry, struct iattr *sattr,
	225	dev_t rdev)
	226	{
	227	struct nfs_fh fhandle;
	228	struct nfs_fattr fattr;
	229	struct nfs_createargs arg = {
	230	.fh = NFS_FH(dir),
	231	.name = dentry->d_name.name,
	232	.len = dentry->d_name.len,
	233	.sattr = sattr
	234	};
	235	struct nfs_diropok res = {
	236	.fh = &fhandle,
	237	.fattr = &fattr
	238	};
dead28da CL	239	struct rpc_message msg = {
	240	.rpc_proc = &nfs_procedures[NFSPROC_CREATE],
	241	.rpc_argp = &arg,
	242	.rpc_resp = &res,
	243	};
1da177e4 LT	244	int status, mode;
	245
	246	dprintk("NFS call mknod %s\n", dentry->d_name.name);
	247
	248	mode = sattr->ia_mode;
	249	if (S_ISFIFO(mode)) {
	250	sattr->ia_mode = (mode & ~S_IFMT) \| S_IFCHR;
	251	sattr->ia_valid &= ~ATTR_SIZE;
	252	} else if (S_ISCHR(mode) \|\| S_ISBLK(mode)) {
	253	sattr->ia_valid \|= ATTR_SIZE;
	254	sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
	255	}
	256
0e574af1	257	nfs_fattr_init(&fattr);
dead28da	258	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
decf491f	259	nfs_mark_for_revalidate(dir);
1da177e4 LT	260
	261	if (status == -EINVAL && S_ISFIFO(mode)) {
	262	sattr->ia_mode = mode;
0e574af1	263	nfs_fattr_init(&fattr);
dead28da	264	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
1da177e4 LT	265	}
	266	if (status == 0)
	267	status = nfs_instantiate(dentry, &fhandle, &fattr);
	268	dprintk("NFS reply mknod: %d\n", status);
	269	return status;
	270	}
	271
	272	static int
	273	nfs_proc_remove(struct inode dir, struct qstr name)
	274	{
	275	struct nfs_diropargs arg = {
	276	.fh = NFS_FH(dir),
	277	.name = name->name,
	278	.len = name->len
	279	};
	280	struct rpc_message msg = {
	281	.rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
	282	.rpc_argp = &arg,
1da177e4 LT	283	};
	284	int status;
	285
	286	dprintk("NFS call remove %s\n", name->name);
	287	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
decf491f	288	nfs_mark_for_revalidate(dir);
1da177e4 LT	289
	290	dprintk("NFS reply remove: %d\n", status);
	291	return status;
	292	}
	293
	294	static int
	295	nfs_proc_unlink_setup(struct rpc_message msg, struct dentry dir, struct qstr *name)
	296	{
	297	struct nfs_diropargs *arg;
	298
f52720ca	299	arg = kmalloc(sizeof(*arg), GFP_KERNEL);
1da177e4 LT	300	if (!arg)
	301	return -ENOMEM;
	302	arg->fh = NFS_FH(dir->d_inode);
	303	arg->name = name->name;
	304	arg->len = name->len;
	305	msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
	306	msg->rpc_argp = arg;
	307	return 0;
	308	}
	309
	310	static int
	311	nfs_proc_unlink_done(struct dentry dir, struct rpc_task task)
	312	{
	313	struct rpc_message *msg = &task->tk_msg;
	314
decf491f TM	315	if (msg->rpc_argp) {
decf491f TM	316	nfs_mark_for_revalidate(dir->d_inode);
1da177e4	317	kfree(msg->rpc_argp);
decf491f	318	}
1da177e4 LT	319	return 0;
	320	}
	321
	322	static int
	323	nfs_proc_rename(struct inode old_dir, struct qstr old_name,
	324	struct inode new_dir, struct qstr new_name)
	325	{
	326	struct nfs_renameargs arg = {
	327	.fromfh = NFS_FH(old_dir),
	328	.fromname = old_name->name,
	329	.fromlen = old_name->len,
	330	.tofh = NFS_FH(new_dir),
	331	.toname = new_name->name,
	332	.tolen = new_name->len
	333	};
dead28da CL	334	struct rpc_message msg = {
	335	.rpc_proc = &nfs_procedures[NFSPROC_RENAME],
	336	.rpc_argp = &arg,
	337	};
1da177e4 LT	338	int status;
	339
	340	dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
dead28da	341	status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
decf491f TM	342	nfs_mark_for_revalidate(old_dir);
decf491f TM	343	nfs_mark_for_revalidate(new_dir);
1da177e4 LT	344	dprintk("NFS reply rename: %d\n", status);
	345	return status;
	346	}
	347
	348	static int
	349	nfs_proc_link(struct inode inode, struct inode dir, struct qstr *name)
	350	{
	351	struct nfs_linkargs arg = {
	352	.fromfh = NFS_FH(inode),
	353	.tofh = NFS_FH(dir),
	354	.toname = name->name,
	355	.tolen = name->len
	356	};
dead28da CL	357	struct rpc_message msg = {
	358	.rpc_proc = &nfs_procedures[NFSPROC_LINK],
	359	.rpc_argp = &arg,
	360	};
1da177e4 LT	361	int status;
	362
	363	dprintk("NFS call link %s\n", name->name);
dead28da	364	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
5ba7cc48	365	nfs_mark_for_revalidate(inode);
decf491f	366	nfs_mark_for_revalidate(dir);
1da177e4 LT	367	dprintk("NFS reply link: %d\n", status);
	368	return status;
	369	}
	370
	371	static int
94a6d753 CL	372	nfs_proc_symlink(struct inode dir, struct dentry dentry, struct page *page,
94a6d753 CL	373	unsigned int len, struct iattr *sattr)
1da177e4	374	{
4f390c15 CL	375	struct nfs_fh fhandle;
4f390c15 CL	376	struct nfs_fattr fattr;
1da177e4 LT	377	struct nfs_symlinkargs arg = {
1da177e4 LT	378	.fromfh = NFS_FH(dir),
4f390c15 CL	379	.fromname = dentry->d_name.name,
4f390c15 CL	380	.fromlen = dentry->d_name.len,
94a6d753 CL	381	.pages = &page,
94a6d753 CL	382	.pathlen = len,
1da177e4 LT	383	.sattr = sattr
1da177e4 LT	384	};
dead28da CL	385	struct rpc_message msg = {
	386	.rpc_proc = &nfs_procedures[NFSPROC_SYMLINK],
	387	.rpc_argp = &arg,
	388	};
1da177e4 LT	389	int status;
1da177e4 LT	390
94a6d753	391	if (len > NFS2_MAXPATHLEN)
1da177e4	392	return -ENAMETOOLONG;
4f390c15	393
94a6d753 CL	394	dprintk("NFS call symlink %s\n", dentry->d_name.name);
94a6d753 CL	395
dead28da	396	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
decf491f	397	nfs_mark_for_revalidate(dir);
4f390c15 CL	398
	399	/*
	400	* V2 SYMLINK requests don't return any attributes. Setting the
	401	* filehandle size to zero indicates to nfs_instantiate that it
	402	* should fill in the data with a LOOKUP call on the wire.
	403	*/
	404	if (status == 0) {
	405	nfs_fattr_init(&fattr);
	406	fhandle.size = 0;
	407	status = nfs_instantiate(dentry, &fhandle, &fattr);
	408	}
	409
1da177e4 LT	410	dprintk("NFS reply symlink: %d\n", status);
	411	return status;
	412	}
	413
	414	static int
	415	nfs_proc_mkdir(struct inode dir, struct dentry dentry, struct iattr *sattr)
	416	{
	417	struct nfs_fh fhandle;
	418	struct nfs_fattr fattr;
	419	struct nfs_createargs arg = {
	420	.fh = NFS_FH(dir),
	421	.name = dentry->d_name.name,
	422	.len = dentry->d_name.len,
	423	.sattr = sattr
	424	};
	425	struct nfs_diropok res = {
	426	.fh = &fhandle,
	427	.fattr = &fattr
	428	};
dead28da CL	429	struct rpc_message msg = {
	430	.rpc_proc = &nfs_procedures[NFSPROC_MKDIR],
	431	.rpc_argp = &arg,
	432	.rpc_resp = &res,
	433	};
1da177e4 LT	434	int status;
	435
	436	dprintk("NFS call mkdir %s\n", dentry->d_name.name);
0e574af1	437	nfs_fattr_init(&fattr);
dead28da	438	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
decf491f	439	nfs_mark_for_revalidate(dir);
1da177e4 LT	440	if (status == 0)
	441	status = nfs_instantiate(dentry, &fhandle, &fattr);
	442	dprintk("NFS reply mkdir: %d\n", status);
	443	return status;
	444	}
	445
	446	static int
	447	nfs_proc_rmdir(struct inode dir, struct qstr name)
	448	{
	449	struct nfs_diropargs arg = {
	450	.fh = NFS_FH(dir),
	451	.name = name->name,
	452	.len = name->len
	453	};
dead28da CL	454	struct rpc_message msg = {
	455	.rpc_proc = &nfs_procedures[NFSPROC_RMDIR],
	456	.rpc_argp = &arg,
	457	};
1da177e4 LT	458	int status;
	459
	460	dprintk("NFS call rmdir %s\n", name->name);
dead28da	461	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
decf491f	462	nfs_mark_for_revalidate(dir);
1da177e4 LT	463	dprintk("NFS reply rmdir: %d\n", status);
	464	return status;
	465	}
	466
	467	/*
	468	* The READDIR implementation is somewhat hackish - we pass a temporary
	469	* buffer to the encode function, which installs it in the receive
	470	* the receive iovec. The decode function just parses the reply to make
	471	* sure it is syntactically correct; the entries itself are decoded
	472	* from nfs_readdir by calling the decode_entry function directly.
	473	*/
	474	static int
	475	nfs_proc_readdir(struct dentry dentry, struct rpc_cred cred,
	476	u64 cookie, struct page *page, unsigned int count, int plus)
	477	{
	478	struct inode *dir = dentry->d_inode;
	479	struct nfs_readdirargs arg = {
	480	.fh = NFS_FH(dir),
	481	.cookie = cookie,
	482	.count = count,
dead28da	483	.pages = &page,
1da177e4 LT	484	};
	485	struct rpc_message msg = {
	486	.rpc_proc = &nfs_procedures[NFSPROC_READDIR],
	487	.rpc_argp = &arg,
dead28da	488	.rpc_cred = cred,
1da177e4 LT	489	};
	490	int status;
	491
1da177e4 LT	492	dprintk("NFS call readdir %d\n", (unsigned int)cookie);
	493	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	494
	495	dprintk("NFS reply readdir: %d\n", status);
1da177e4 LT	496	return status;
	497	}
	498
	499	static int
	500	nfs_proc_statfs(struct nfs_server server, struct nfs_fh fhandle,
	501	struct nfs_fsstat *stat)
	502	{
	503	struct nfs2_fsstat fsinfo;
dead28da CL	504	struct rpc_message msg = {
	505	.rpc_proc = &nfs_procedures[NFSPROC_STATFS],
	506	.rpc_argp = fhandle,
	507	.rpc_resp = &fsinfo,
	508	};
1da177e4 LT	509	int status;
	510
	511	dprintk("NFS call statfs\n");
0e574af1	512	nfs_fattr_init(stat->fattr);
dead28da	513	status = rpc_call_sync(server->client, &msg, 0);
1da177e4 LT	514	dprintk("NFS reply statfs: %d\n", status);
	515	if (status)
	516	goto out;
	517	stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize;
	518	stat->fbytes = (u64)fsinfo.bfree * fsinfo.bsize;
	519	stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize;
	520	stat->tfiles = 0;
	521	stat->ffiles = 0;
	522	stat->afiles = 0;
	523	out:
	524	return status;
	525	}
	526
	527	static int
	528	nfs_proc_fsinfo(struct nfs_server server, struct nfs_fh fhandle,
	529	struct nfs_fsinfo *info)
	530	{
	531	struct nfs2_fsstat fsinfo;
dead28da CL	532	struct rpc_message msg = {
	533	.rpc_proc = &nfs_procedures[NFSPROC_STATFS],
	534	.rpc_argp = fhandle,
	535	.rpc_resp = &fsinfo,
	536	};
1da177e4 LT	537	int status;
	538
	539	dprintk("NFS call fsinfo\n");
0e574af1	540	nfs_fattr_init(info->fattr);
dead28da	541	status = rpc_call_sync(server->client, &msg, 0);
1da177e4 LT	542	dprintk("NFS reply fsinfo: %d\n", status);
	543	if (status)
	544	goto out;
	545	info->rtmax = NFS_MAXDATA;
	546	info->rtpref = fsinfo.tsize;
	547	info->rtmult = fsinfo.bsize;
	548	info->wtmax = NFS_MAXDATA;
	549	info->wtpref = fsinfo.tsize;
	550	info->wtmult = fsinfo.bsize;
	551	info->dtpref = fsinfo.tsize;
	552	info->maxfilesize = 0x7FFFFFFF;
	553	info->lease_time = 0;
	554	out:
	555	return status;
	556	}
	557
	558	static int
	559	nfs_proc_pathconf(struct nfs_server server, struct nfs_fh fhandle,
	560	struct nfs_pathconf *info)
	561	{
	562	info->max_link = 0;
	563	info->max_namelen = NFS2_MAXNAMLEN;
	564	return 0;
	565	}
	566
ec06c096	567	static int nfs_read_done(struct rpc_task task, struct nfs_read_data data)
1da177e4	568	{
1da177e4 LT	569	if (task->tk_status >= 0) {
	570	nfs_refresh_inode(data->inode, data->res.fattr);
	571	/* Emulate the eof flag, which isn't normally needed in NFSv2
	572	* as it is guaranteed to always return the file attributes
	573	*/
	574	if (data->args.offset + data->args.count >= data->res.fattr->size)
	575	data->res.eof = 1;
	576	}
ec06c096	577	return 0;
1da177e4 LT	578	}
1da177e4 LT	579
ec06c096	580	static void nfs_proc_read_setup(struct nfs_read_data *data)
1da177e4	581	{
1da177e4 LT	582	struct rpc_message msg = {
	583	.rpc_proc = &nfs_procedures[NFSPROC_READ],
	584	.rpc_argp = &data->args,
	585	.rpc_resp = &data->res,
	586	.rpc_cred = data->cred,
	587	};
	588
ec06c096	589	rpc_call_setup(&data->task, &msg, 0);
1da177e4 LT	590	}
1da177e4 LT	591
788e7a89	592	static int nfs_write_done(struct rpc_task task, struct nfs_write_data data)
1da177e4	593	{
1da177e4	594	if (task->tk_status >= 0)
decf491f	595	nfs_post_op_update_inode(data->inode, data->res.fattr);
788e7a89	596	return 0;
1da177e4 LT	597	}
1da177e4 LT	598
788e7a89	599	static void nfs_proc_write_setup(struct nfs_write_data *data, int how)
1da177e4	600	{
1da177e4 LT	601	struct rpc_message msg = {
	602	.rpc_proc = &nfs_procedures[NFSPROC_WRITE],
	603	.rpc_argp = &data->args,
	604	.rpc_resp = &data->res,
	605	.rpc_cred = data->cred,
	606	};
	607
	608	/* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
	609	data->args.stable = NFS_FILE_SYNC;
	610
1da177e4	611	/* Finalize the task. */
788e7a89	612	rpc_call_setup(&data->task, &msg, 0);
1da177e4 LT	613	}
	614
	615	static void
	616	nfs_proc_commit_setup(struct nfs_write_data *data, int how)
	617	{
	618	BUG();
	619	}
	620
	621	static int
	622	nfs_proc_lock(struct file filp, int cmd, struct file_lock fl)
	623	{
01cce933	624	return nlmclnt_proc(filp->f_path.dentry->d_inode, cmd, fl);
1da177e4 LT	625	}
	626
	627
509de811	628	const struct nfs_rpc_ops nfs_v2_clientops = {
1da177e4 LT	629	.version = 2, /* protocol version */
	630	.dentry_ops = &nfs_dentry_operations,
	631	.dir_inode_ops = &nfs_dir_inode_operations,
92cfc62c	632	.file_inode_ops = &nfs_file_inode_operations,
1da177e4 LT	633	.getroot = nfs_proc_get_root,
	634	.getattr = nfs_proc_getattr,
	635	.setattr = nfs_proc_setattr,
	636	.lookup = nfs_proc_lookup,
	637	.access = NULL, /* access */
	638	.readlink = nfs_proc_readlink,
1da177e4 LT	639	.create = nfs_proc_create,
	640	.remove = nfs_proc_remove,
	641	.unlink_setup = nfs_proc_unlink_setup,
	642	.unlink_done = nfs_proc_unlink_done,
	643	.rename = nfs_proc_rename,
	644	.link = nfs_proc_link,
	645	.symlink = nfs_proc_symlink,
	646	.mkdir = nfs_proc_mkdir,
	647	.rmdir = nfs_proc_rmdir,
	648	.readdir = nfs_proc_readdir,
	649	.mknod = nfs_proc_mknod,
	650	.statfs = nfs_proc_statfs,
	651	.fsinfo = nfs_proc_fsinfo,
	652	.pathconf = nfs_proc_pathconf,
	653	.decode_dirent = nfs_decode_dirent,
	654	.read_setup = nfs_proc_read_setup,
ec06c096	655	.read_done = nfs_read_done,
1da177e4	656	.write_setup = nfs_proc_write_setup,
788e7a89	657	.write_done = nfs_write_done,
1da177e4 LT	658	.commit_setup = nfs_proc_commit_setup,
	659	.file_open = nfs_open,
	660	.file_release = nfs_release,
	661	.lock = nfs_proc_lock,
	662	};