2005-04-16 15:20:36 -07:00
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/*
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* linux/fs/nfs/proc.c
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*
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* Copyright (C) 1992, 1993, 1994 Rick Sladkey
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*
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* OS-independent nfs remote procedure call functions
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*
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* Tuned by Alan Cox <A.Cox@swansea.ac.uk> for >3K buffers
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* so at last we can have decent(ish) throughput off a
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* Sun server.
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*
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* Coding optimized and cleaned up by Florian La Roche.
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* Note: Error returns are optimized for NFS_OK, which isn't translated via
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* nfs_stat_to_errno(), but happens to be already the right return code.
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*
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* Also, the code currently doesn't check the size of the packet, when
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* it decodes the packet.
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*
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* Feel free to fix it and mail me the diffs if it worries you.
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*
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* Completely rewritten to support the new RPC call interface;
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* rewrote and moved the entire XDR stuff to xdr.c
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* --Olaf Kirch June 1996
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*
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* The code below initializes all auto variables explicitly, otherwise
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* it will fail to work as a module (gcc generates a memset call for an
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* incomplete struct).
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*/
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#include <linux/types.h>
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#include <linux/param.h>
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#include <linux/slab.h>
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#include <linux/time.h>
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#include <linux/mm.h>
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#include <linux/utsname.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/in.h>
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#include <linux/pagemap.h>
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#include <linux/sunrpc/clnt.h>
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#include <linux/nfs.h>
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#include <linux/nfs2.h>
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#include <linux/nfs_fs.h>
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#include <linux/nfs_page.h>
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#include <linux/lockd/bind.h>
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NFS: Split fs/nfs/inode.c
As fs/nfs/inode.c is rather large, heterogenous and unwieldy, the attached
patch splits it up into a number of files:
(*) fs/nfs/inode.c
Strictly inode specific functions.
(*) fs/nfs/super.c
Superblock management functions for NFS and NFS4, normal access, clones
and referrals. The NFS4 superblock functions _could_ move out into a
separate conditionally compiled file, but it's probably not worth it as
there're so many common bits.
(*) fs/nfs/namespace.c
Some namespace-specific functions have been moved here.
(*) fs/nfs/nfs4namespace.c
NFS4-specific namespace functions (this could be merged into the previous
file). This file is conditionally compiled.
(*) fs/nfs/internal.h
Inter-file declarations, plus a few simple utility functions moved from
fs/nfs/inode.c.
Additionally, all the in-.c-file externs have been moved here, and those
files they were moved from now includes this file.
For the most part, the functions have not been changed, only some multiplexor
functions have changed significantly.
I've also:
(*) Added some extra banner comments above some functions.
(*) Rearranged the function order within the files to be more logical and
better grouped (IMO), though someone may prefer a different order.
(*) Reduced the number of #ifdefs in .c files.
(*) Added missing __init and __exit directives.
Signed-Off-By: David Howells <dhowells@redhat.com>
2006-06-09 06:34:33 -07:00
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#include "internal.h"
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2005-04-16 15:20:36 -07:00
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#define NFSDBG_FACILITY NFSDBG_PROC
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/*
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* Bare-bones access to getattr: this is for nfs_read_super.
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*/
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static int
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nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
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struct nfs_fsinfo *info)
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{
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struct nfs_fattr *fattr = info->fattr;
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struct nfs2_fsstat fsinfo;
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
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.rpc_argp = fhandle,
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.rpc_resp = fattr,
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};
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2005-04-16 15:20:36 -07:00
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int status;
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dprintk("%s: call getattr\n", __FUNCTION__);
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(fattr);
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2006-08-22 17:06:12 -07:00
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status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
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2005-04-16 15:20:36 -07:00
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dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
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if (status)
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return status;
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dprintk("%s: call statfs\n", __FUNCTION__);
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2006-03-20 11:44:23 -07:00
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msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
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msg.rpc_resp = &fsinfo;
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2006-08-22 17:06:12 -07:00
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status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
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2005-04-16 15:20:36 -07:00
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dprintk("%s: reply statfs: %d\n", __FUNCTION__, status);
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if (status)
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return status;
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info->rtmax = NFS_MAXDATA;
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info->rtpref = fsinfo.tsize;
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info->rtmult = fsinfo.bsize;
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info->wtmax = NFS_MAXDATA;
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info->wtpref = fsinfo.tsize;
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info->wtmult = fsinfo.bsize;
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info->dtpref = fsinfo.tsize;
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info->maxfilesize = 0x7FFFFFFF;
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info->lease_time = 0;
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return 0;
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}
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/*
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* One function for each procedure in the NFS protocol.
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*/
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static int
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nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
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struct nfs_fattr *fattr)
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{
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_GETATTR],
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.rpc_argp = fhandle,
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.rpc_resp = fattr,
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};
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2005-04-16 15:20:36 -07:00
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int status;
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dprintk("NFS call getattr\n");
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(fattr);
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(server->client, &msg, 0);
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2005-04-16 15:20:36 -07:00
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dprintk("NFS reply getattr: %d\n", status);
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return status;
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}
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static int
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nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
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struct iattr *sattr)
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{
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struct inode *inode = dentry->d_inode;
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struct nfs_sattrargs arg = {
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.fh = NFS_FH(inode),
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.sattr = sattr
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};
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_SETATTR],
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.rpc_argp = &arg,
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.rpc_resp = fattr,
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};
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2005-04-16 15:20:36 -07:00
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int status;
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2006-01-03 01:55:53 -07:00
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/* Mask out the non-modebit related stuff from attr->ia_mode */
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sattr->ia_mode &= S_IALLUGO;
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2005-04-16 15:20:36 -07:00
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dprintk("NFS call setattr\n");
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(fattr);
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
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2005-08-16 08:49:44 -07:00
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if (status == 0)
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nfs_setattr_update_inode(inode, sattr);
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2005-04-16 15:20:36 -07:00
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dprintk("NFS reply setattr: %d\n", status);
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return status;
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}
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static int
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nfs_proc_lookup(struct inode *dir, struct qstr *name,
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struct nfs_fh *fhandle, struct nfs_fattr *fattr)
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{
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struct nfs_diropargs arg = {
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.fh = NFS_FH(dir),
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.name = name->name,
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.len = name->len
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};
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struct nfs_diropok res = {
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.fh = fhandle,
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.fattr = fattr
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};
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_LOOKUP],
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.rpc_argp = &arg,
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.rpc_resp = &res,
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};
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2005-04-16 15:20:36 -07:00
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int status;
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dprintk("NFS call lookup %s\n", name->name);
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(fattr);
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
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2005-04-16 15:20:36 -07:00
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dprintk("NFS reply lookup: %d\n", status);
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return status;
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}
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static int nfs_proc_readlink(struct inode *inode, struct page *page,
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unsigned int pgbase, unsigned int pglen)
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{
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struct nfs_readlinkargs args = {
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.fh = NFS_FH(inode),
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.pgbase = pgbase,
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.pglen = pglen,
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.pages = &page
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};
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_READLINK],
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.rpc_argp = &args,
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};
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2005-04-16 15:20:36 -07:00
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int status;
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dprintk("NFS call readlink\n");
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
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2005-04-16 15:20:36 -07:00
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dprintk("NFS reply readlink: %d\n", status);
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return status;
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}
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static int
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nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
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2005-10-18 14:20:17 -07:00
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int flags, struct nameidata *nd)
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2005-04-16 15:20:36 -07:00
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{
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struct nfs_fh fhandle;
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struct nfs_fattr fattr;
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struct nfs_createargs arg = {
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.fh = NFS_FH(dir),
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.name = dentry->d_name.name,
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.len = dentry->d_name.len,
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.sattr = sattr
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};
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struct nfs_diropok res = {
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.fh = &fhandle,
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.fattr = &fattr
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};
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_CREATE],
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.rpc_argp = &arg,
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.rpc_resp = &res,
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};
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2005-04-16 15:20:36 -07:00
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int status;
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(&fattr);
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2005-04-16 15:20:36 -07:00
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dprintk("NFS call create %s\n", dentry->d_name.name);
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
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2005-04-16 15:20:36 -07:00
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if (status == 0)
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status = nfs_instantiate(dentry, &fhandle, &fattr);
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dprintk("NFS reply create: %d\n", status);
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return status;
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}
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/*
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* In NFSv2, mknod is grafted onto the create call.
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*/
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static int
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nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
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dev_t rdev)
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{
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struct nfs_fh fhandle;
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struct nfs_fattr fattr;
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struct nfs_createargs arg = {
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.fh = NFS_FH(dir),
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.name = dentry->d_name.name,
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.len = dentry->d_name.len,
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.sattr = sattr
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};
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struct nfs_diropok res = {
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.fh = &fhandle,
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.fattr = &fattr
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};
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2006-03-20 11:44:23 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_CREATE],
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.rpc_argp = &arg,
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.rpc_resp = &res,
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};
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2005-04-16 15:20:36 -07:00
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int status, mode;
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dprintk("NFS call mknod %s\n", dentry->d_name.name);
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mode = sattr->ia_mode;
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if (S_ISFIFO(mode)) {
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sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
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sattr->ia_valid &= ~ATTR_SIZE;
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} else if (S_ISCHR(mode) || S_ISBLK(mode)) {
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sattr->ia_valid |= ATTR_SIZE;
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sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
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}
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(&fattr);
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
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2005-10-27 19:12:39 -07:00
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nfs_mark_for_revalidate(dir);
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2005-04-16 15:20:36 -07:00
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if (status == -EINVAL && S_ISFIFO(mode)) {
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sattr->ia_mode = mode;
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2005-10-27 19:12:38 -07:00
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nfs_fattr_init(&fattr);
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2006-03-20 11:44:23 -07:00
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status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
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2005-04-16 15:20:36 -07:00
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}
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if (status == 0)
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status = nfs_instantiate(dentry, &fhandle, &fattr);
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dprintk("NFS reply mknod: %d\n", status);
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return status;
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}
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static int
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nfs_proc_remove(struct inode *dir, struct qstr *name)
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{
|
2007-07-14 12:39:57 -07:00
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struct nfs_removeargs arg = {
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.fh = NFS_FH(dir),
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.name.len = name->len,
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.name.name = name->name,
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2005-04-16 15:20:36 -07:00
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};
|
2007-07-14 12:39:57 -07:00
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struct rpc_message msg = {
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.rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
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.rpc_argp = &arg,
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2005-04-16 15:20:36 -07:00
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};
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int status;
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dprintk("NFS call remove %s\n", name->name);
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status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
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2005-10-27 19:12:39 -07:00
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nfs_mark_for_revalidate(dir);
|
2005-04-16 15:20:36 -07:00
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dprintk("NFS reply remove: %d\n", status);
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return status;
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}
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static int
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nfs_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
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{
|
2007-07-14 12:39:57 -07:00
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|
|
struct nfs_removeargs *arg;
|
2005-04-16 15:20:36 -07:00
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|
2006-09-27 01:49:39 -07:00
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|
|
arg = kmalloc(sizeof(*arg), GFP_KERNEL);
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!arg)
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|
return -ENOMEM;
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|
|
arg->fh = NFS_FH(dir->d_inode);
|
2007-07-14 12:39:57 -07:00
|
|
|
arg->name.name = name->name;
|
|
|
|
arg->name.len = name->len;
|
2005-04-16 15:20:36 -07:00
|
|
|
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;
|
|
|
|
|
2005-10-27 19:12:39 -07:00
|
|
|
if (msg->rpc_argp) {
|
|
|
|
nfs_mark_for_revalidate(dir->d_inode);
|
2005-04-16 15:20:36 -07:00
|
|
|
kfree(msg->rpc_argp);
|
2005-10-27 19:12:39 -07:00
|
|
|
}
|
2005-04-16 15:20:36 -07:00
|
|
|
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
|
|
|
|
};
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_RENAME],
|
|
|
|
.rpc_argp = &arg,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
|
|
|
dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
|
2005-10-27 19:12:39 -07:00
|
|
|
nfs_mark_for_revalidate(old_dir);
|
|
|
|
nfs_mark_for_revalidate(new_dir);
|
2005-04-16 15:20:36 -07:00
|
|
|
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
|
|
|
|
};
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_LINK],
|
|
|
|
.rpc_argp = &arg,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
|
|
|
dprintk("NFS call link %s\n", name->name);
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
|
2005-12-03 13:20:17 -07:00
|
|
|
nfs_mark_for_revalidate(inode);
|
2005-10-27 19:12:39 -07:00
|
|
|
nfs_mark_for_revalidate(dir);
|
2005-04-16 15:20:36 -07:00
|
|
|
dprintk("NFS reply link: %d\n", status);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2006-08-22 17:06:23 -07:00
|
|
|
nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
|
|
|
|
unsigned int len, struct iattr *sattr)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
2006-08-22 17:06:22 -07:00
|
|
|
struct nfs_fh fhandle;
|
|
|
|
struct nfs_fattr fattr;
|
2005-04-16 15:20:36 -07:00
|
|
|
struct nfs_symlinkargs arg = {
|
|
|
|
.fromfh = NFS_FH(dir),
|
2006-08-22 17:06:22 -07:00
|
|
|
.fromname = dentry->d_name.name,
|
|
|
|
.fromlen = dentry->d_name.len,
|
2006-08-22 17:06:23 -07:00
|
|
|
.pages = &page,
|
|
|
|
.pathlen = len,
|
2005-04-16 15:20:36 -07:00
|
|
|
.sattr = sattr
|
|
|
|
};
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_SYMLINK],
|
|
|
|
.rpc_argp = &arg,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
2006-08-22 17:06:23 -07:00
|
|
|
if (len > NFS2_MAXPATHLEN)
|
2005-04-16 15:20:36 -07:00
|
|
|
return -ENAMETOOLONG;
|
2006-08-22 17:06:22 -07:00
|
|
|
|
2006-08-22 17:06:23 -07:00
|
|
|
dprintk("NFS call symlink %s\n", dentry->d_name.name);
|
|
|
|
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
|
2005-10-27 19:12:39 -07:00
|
|
|
nfs_mark_for_revalidate(dir);
|
2006-08-22 17:06:22 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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);
|
|
|
|
}
|
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
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
|
|
|
|
};
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_MKDIR],
|
|
|
|
.rpc_argp = &arg,
|
|
|
|
.rpc_resp = &res,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
|
|
|
dprintk("NFS call mkdir %s\n", dentry->d_name.name);
|
2005-10-27 19:12:38 -07:00
|
|
|
nfs_fattr_init(&fattr);
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
|
2005-10-27 19:12:39 -07:00
|
|
|
nfs_mark_for_revalidate(dir);
|
2005-04-16 15:20:36 -07:00
|
|
|
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
|
|
|
|
};
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_RMDIR],
|
|
|
|
.rpc_argp = &arg,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
|
|
|
dprintk("NFS call rmdir %s\n", name->name);
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
|
2005-10-27 19:12:39 -07:00
|
|
|
nfs_mark_for_revalidate(dir);
|
2005-04-16 15:20:36 -07:00
|
|
|
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,
|
2006-03-20 11:44:23 -07:00
|
|
|
.pages = &page,
|
2005-04-16 15:20:36 -07:00
|
|
|
};
|
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_READDIR],
|
|
|
|
.rpc_argp = &arg,
|
2006-03-20 11:44:23 -07:00
|
|
|
.rpc_cred = cred,
|
2005-04-16 15:20:36 -07:00
|
|
|
};
|
|
|
|
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;
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_STATFS],
|
|
|
|
.rpc_argp = fhandle,
|
|
|
|
.rpc_resp = &fsinfo,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
|
|
|
dprintk("NFS call statfs\n");
|
2005-10-27 19:12:38 -07:00
|
|
|
nfs_fattr_init(stat->fattr);
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(server->client, &msg, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
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;
|
2006-03-20 11:44:23 -07:00
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_STATFS],
|
|
|
|
.rpc_argp = fhandle,
|
|
|
|
.rpc_resp = &fsinfo,
|
|
|
|
};
|
2005-04-16 15:20:36 -07:00
|
|
|
int status;
|
|
|
|
|
|
|
|
dprintk("NFS call fsinfo\n");
|
2005-10-27 19:12:38 -07:00
|
|
|
nfs_fattr_init(info->fattr);
|
2006-03-20 11:44:23 -07:00
|
|
|
status = rpc_call_sync(server->client, &msg, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2006-03-20 11:44:27 -07:00
|
|
|
static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
2006-03-20 11:44:27 -07:00
|
|
|
return 0;
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
2006-03-20 11:44:27 -07:00
|
|
|
static void nfs_proc_read_setup(struct nfs_read_data *data)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
struct rpc_message msg = {
|
|
|
|
.rpc_proc = &nfs_procedures[NFSPROC_READ],
|
|
|
|
.rpc_argp = &data->args,
|
|
|
|
.rpc_resp = &data->res,
|
|
|
|
.rpc_cred = data->cred,
|
|
|
|
};
|
|
|
|
|
2006-03-20 11:44:27 -07:00
|
|
|
rpc_call_setup(&data->task, &msg, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
2006-03-20 11:44:27 -07:00
|
|
|
static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
if (task->tk_status >= 0)
|
2005-10-27 19:12:39 -07:00
|
|
|
nfs_post_op_update_inode(data->inode, data->res.fattr);
|
2006-03-20 11:44:27 -07:00
|
|
|
return 0;
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
2006-03-20 11:44:27 -07:00
|
|
|
static void nfs_proc_write_setup(struct nfs_write_data *data, int how)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
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. */
|
2006-03-20 11:44:27 -07:00
|
|
|
rpc_call_setup(&data->task, &msg, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
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)
|
|
|
|
{
|
2006-12-08 03:36:40 -07:00
|
|
|
return nlmclnt_proc(filp->f_path.dentry->d_inode, cmd, fl);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-08-22 17:06:11 -07:00
|
|
|
const struct nfs_rpc_ops nfs_v2_clientops = {
|
2005-04-16 15:20:36 -07:00
|
|
|
.version = 2, /* protocol version */
|
|
|
|
.dentry_ops = &nfs_dentry_operations,
|
|
|
|
.dir_inode_ops = &nfs_dir_inode_operations,
|
2005-06-22 10:16:22 -07:00
|
|
|
.file_inode_ops = &nfs_file_inode_operations,
|
2005-04-16 15:20:36 -07:00
|
|
|
.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,
|
2006-03-20 11:44:27 -07:00
|
|
|
.read_done = nfs_read_done,
|
2005-04-16 15:20:36 -07:00
|
|
|
.write_setup = nfs_proc_write_setup,
|
2006-03-20 11:44:27 -07:00
|
|
|
.write_done = nfs_write_done,
|
2005-04-16 15:20:36 -07:00
|
|
|
.commit_setup = nfs_proc_commit_setup,
|
|
|
|
.file_open = nfs_open,
|
|
|
|
.file_release = nfs_release,
|
|
|
|
.lock = nfs_proc_lock,
|
|
|
|
};
|