v9fs: do not include linux/version.h

[safe/jmp/linux-2.6] / fs / 9p / v9fs.c

diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 5e0f793..d37416e 100644 (file)
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -7,9 +7,8 @@
  *  Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
  *
  *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -37,7 +36,6 @@
 #include "v9fs_vfs.h"
 #include "transport.h"
 #include "mux.h"
-#include "conv.h"
 
 /* TODO: sysfs or debugfs interface */
 int v9fs_debug_level = 0;      /* feature-rific global debug level  */
@@ -52,7 +50,7 @@ enum {
        Opt_port, Opt_msize, Opt_uid, Opt_gid, Opt_afid, Opt_debug,
        Opt_rfdno, Opt_wfdno,
        /* String options */
-       Opt_name, Opt_remotename,
+       Opt_uname, Opt_remotename,
        /* Options that take no arguments */
        Opt_legacy, Opt_nodevmap, Opt_unix, Opt_tcp, Opt_fd,
        /* Error token */
@@ -67,8 +65,8 @@ static match_table_t tokens = {
        {Opt_afid, "afid=%u"},
        {Opt_rfdno, "rfdno=%u"},
        {Opt_wfdno, "wfdno=%u"},
-       {Opt_debug, "debug=%u"},
-       {Opt_name, "name=%s"},
+       {Opt_debug, "debug=%x"},
+       {Opt_uname, "uname=%s"},
        {Opt_remotename, "aname=%s"},
        {Opt_unix, "proto=unix"},
        {Opt_tcp, "proto=tcp"},
@@ -117,7 +115,7 @@ static void v9fs_parse_options(char *options, struct v9fs_session_info *v9ses)
                if (!*p)
                        continue;
                token = match_token(p, tokens, args);
-               if (token < Opt_name) {
+               if (token < Opt_uname) {
                        if ((ret = match_int(&args[0], &option)) < 0) {
                                dprintk(DEBUG_ERROR,
                                        "integer field, but no integer?\n");
@@ -159,7 +157,7 @@ static void v9fs_parse_options(char *options, struct v9fs_session_info *v9ses)
                case Opt_fd:
                        v9ses->proto = PROTO_FD;
                        break;
-               case Opt_name:
+               case Opt_uname:
                        match_strcpy(v9ses->name, &args[0]);
                        break;
                case Opt_remotename:
@@ -270,6 +268,7 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
        int n = 0;
        int newfid = -1;
        int retval = -EINVAL;
+       struct v9fs_str *version;
 
        v9ses->name = __getname();
        if (!v9ses->name)
@@ -289,7 +288,7 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
        /* set global debug level */
        v9fs_debug_level = v9ses->debug;
 
-       /* id pools that are session-dependent: FIDs and TIDs */
+       /* id pools that are session-dependent: fids and tags */
        idr_init(&v9ses->fidpool.pool);
        init_MUTEX(&v9ses->fidpool.lock);
 
@@ -352,13 +351,16 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
                        goto FreeFcall;
                }
 
-               /* Really should check for 9P1 and report error */
-               if (!strcmp(fcall->params.rversion.version, "9P2000.u")) {
+               version = &fcall->params.rversion.version;
+               if (version->len==8 && !memcmp(version->str, "9P2000.u", 8)) {
                        dprintk(DEBUG_9P, "9P2000 UNIX extensions enabled\n");
                        v9ses->extended = 1;
-               } else {
+               } else if (version->len==6 && !memcmp(version->str, "9P2000", 6)) {
                        dprintk(DEBUG_9P, "9P2000 legacy mode enabled\n");
                        v9ses->extended = 0;
+               } else {
+                       retval = -EREMOTEIO;
+                       goto FreeFcall;
                }
 
                n = fcall->params.rversion.msize;
@@ -394,6 +396,7 @@ v9fs_session_init(struct v9fs_session_info *v9ses,
        }
 
        if (v9ses->afid != ~0) {
+               dprintk(DEBUG_ERROR, "afid not equal to ~0\n");
                if (v9fs_t_clunk(v9ses, v9ses->afid))
                        dprintk(DEBUG_ERROR, "clunk failed\n");
        }
@@ -450,12 +453,17 @@ extern int v9fs_error_init(void);
 
 static int __init init_v9fs(void)
 {
+       int ret;
+
        v9fs_error_init();
 
        printk(KERN_INFO "Installing v9fs 9P2000 file system support\n");
 
-       v9fs_mux_global_init();
-       return register_filesystem(&v9fs_fs_type);
+       ret = v9fs_mux_global_init();
+       if (!ret)
+               ret = register_filesystem(&v9fs_fs_type);
+
+       return ret;
 }
 
 /**