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Diffstat (limited to 'fs/9p/vfs_super.c')
-rw-r--r--fs/9p/vfs_super.c91
1 files changed, 37 insertions, 54 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 7bdf8b326841..f6a0519ade8c 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -37,10 +37,10 @@
37#include <linux/mount.h> 37#include <linux/mount.h>
38#include <linux/idr.h> 38#include <linux/idr.h>
39#include <linux/sched.h> 39#include <linux/sched.h>
40#include <net/9p/9p.h>
41#include <net/9p/client.h>
40 42
41#include "debug.h"
42#include "v9fs.h" 43#include "v9fs.h"
43#include "9p.h"
44#include "v9fs_vfs.h" 44#include "v9fs_vfs.h"
45#include "fid.h" 45#include "fid.h"
46 46
@@ -107,41 +107,48 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
107 struct vfsmount *mnt) 107 struct vfsmount *mnt)
108{ 108{
109 struct super_block *sb = NULL; 109 struct super_block *sb = NULL;
110 struct v9fs_fcall *fcall = NULL;
111 struct inode *inode = NULL; 110 struct inode *inode = NULL;
112 struct dentry *root = NULL; 111 struct dentry *root = NULL;
113 struct v9fs_session_info *v9ses = NULL; 112 struct v9fs_session_info *v9ses = NULL;
114 struct v9fs_fid *root_fid = NULL; 113 struct p9_stat *st = NULL;
115 int mode = S_IRWXUGO | S_ISVTX; 114 int mode = S_IRWXUGO | S_ISVTX;
116 uid_t uid = current->fsuid; 115 uid_t uid = current->fsuid;
117 gid_t gid = current->fsgid; 116 gid_t gid = current->fsgid;
118 int stat_result = 0; 117 struct p9_fid *fid;
119 int newfid = 0;
120 int retval = 0; 118 int retval = 0;
121 119
122 dprintk(DEBUG_VFS, " \n"); 120 P9_DPRINTK(P9_DEBUG_VFS, " \n");
123 121
124 v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL); 122 v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL);
125 if (!v9ses) 123 if (!v9ses)
126 return -ENOMEM; 124 return -ENOMEM;
127 125
128 if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) { 126 fid = v9fs_session_init(v9ses, dev_name, data);
129 dprintk(DEBUG_ERROR, "problem initiating session\n"); 127 if (IS_ERR(fid)) {
130 retval = newfid; 128 retval = PTR_ERR(fid);
131 goto out_free_session; 129 fid = NULL;
130 kfree(v9ses);
131 v9ses = NULL;
132 goto error;
133 }
134
135 st = p9_client_stat(fid);
136 if (IS_ERR(st)) {
137 retval = PTR_ERR(st);
138 goto error;
132 } 139 }
133 140
134 sb = sget(fs_type, NULL, v9fs_set_super, v9ses); 141 sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
135 if (IS_ERR(sb)) { 142 if (IS_ERR(sb)) {
136 retval = PTR_ERR(sb); 143 retval = PTR_ERR(sb);
137 goto out_close_session; 144 goto error;
138 } 145 }
139 v9fs_fill_super(sb, v9ses, flags); 146 v9fs_fill_super(sb, v9ses, flags);
140 147
141 inode = v9fs_get_inode(sb, S_IFDIR | mode); 148 inode = v9fs_get_inode(sb, S_IFDIR | mode);
142 if (IS_ERR(inode)) { 149 if (IS_ERR(inode)) {
143 retval = PTR_ERR(inode); 150 retval = PTR_ERR(inode);
144 goto put_back_sb; 151 goto error;
145 } 152 }
146 153
147 inode->i_uid = uid; 154 inode->i_uid = uid;
@@ -150,54 +157,30 @@ static int v9fs_get_sb(struct file_system_type *fs_type, int flags,
150 root = d_alloc_root(inode); 157 root = d_alloc_root(inode);
151 if (!root) { 158 if (!root) {
152 retval = -ENOMEM; 159 retval = -ENOMEM;
153 goto put_back_sb; 160 goto error;
154 } 161 }
155 162
156 sb->s_root = root; 163 sb->s_root = root;
164 root->d_inode->i_ino = v9fs_qid2ino(&st->qid);
165 v9fs_stat2inode(st, root->d_inode, sb);
166 v9fs_fid_add(root, fid);
157 167
158 stat_result = v9fs_t_stat(v9ses, newfid, &fcall); 168 return simple_set_mnt(mnt, sb);
159 if (stat_result < 0) {
160 dprintk(DEBUG_ERROR, "stat error\n");
161 v9fs_t_clunk(v9ses, newfid);
162 } else {
163 /* Setup the Root Inode */
164 root_fid = v9fs_fid_create(v9ses, newfid);
165 if (root_fid == NULL) {
166 retval = -ENOMEM;
167 goto put_back_sb;
168 }
169
170 retval = v9fs_fid_insert(root_fid, root);
171 if (retval < 0) {
172 kfree(fcall);
173 goto put_back_sb;
174 }
175
176 root_fid->qid = fcall->params.rstat.stat.qid;
177 root->d_inode->i_ino =
178 v9fs_qid2ino(&fcall->params.rstat.stat.qid);
179 v9fs_stat2inode(&fcall->params.rstat.stat, root->d_inode, sb);
180 }
181 169
182 kfree(fcall); 170error:
171 if (fid)
172 p9_client_clunk(fid);
183 173
184 if (stat_result < 0) { 174 if (v9ses) {
185 retval = stat_result; 175 v9fs_session_close(v9ses);
186 goto put_back_sb; 176 kfree(v9ses);
187 } 177 }
188 178
189 return simple_set_mnt(mnt, sb); 179 if (sb) {
190 180 up_write(&sb->s_umount);
191out_close_session: 181 deactivate_super(sb);
192 v9fs_session_close(v9ses); 182 }
193out_free_session:
194 kfree(v9ses);
195 return retval;
196 183
197put_back_sb:
198 /* deactivate_super calls v9fs_kill_super which will frees the rest */
199 up_write(&sb->s_umount);
200 deactivate_super(sb);
201 return retval; 184 return retval;
202} 185}
203 186
@@ -211,7 +194,7 @@ static void v9fs_kill_super(struct super_block *s)
211{ 194{
212 struct v9fs_session_info *v9ses = s->s_fs_info; 195 struct v9fs_session_info *v9ses = s->s_fs_info;
213 196
214 dprintk(DEBUG_VFS, " %p\n", s); 197 P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s);
215 198
216 v9fs_dentry_release(s->s_root); /* clunk root */ 199 v9fs_dentry_release(s->s_root); /* clunk root */
217 200
@@ -219,7 +202,7 @@ static void v9fs_kill_super(struct super_block *s)
219 202
220 v9fs_session_close(v9ses); 203 v9fs_session_close(v9ses);
221 kfree(v9ses); 204 kfree(v9ses);
222 dprintk(DEBUG_VFS, "exiting kill_super\n"); 205 P9_DPRINTK(P9_DEBUG_VFS, "exiting kill_super\n");
223} 206}
224 207
225/** 208/**