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path: root/fs/cifs/cifs_dfs_ref.c
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Diffstat (limited to 'fs/cifs/cifs_dfs_ref.c')
-rw-r--r--fs/cifs/cifs_dfs_ref.c49
1 files changed, 1 insertions, 48 deletions
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index f6fdecf6598c..d82374c9e329 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -219,53 +219,6 @@ static struct vfsmount *cifs_dfs_do_refmount(const struct vfsmount *mnt_parent,
219 219
220} 220}
221 221
222static char *build_full_dfs_path_from_dentry(struct dentry *dentry)
223{
224 char *full_path = NULL;
225 char *search_path;
226 char *tmp_path;
227 size_t l_max_len;
228 struct cifs_sb_info *cifs_sb;
229
230 if (dentry->d_inode == NULL)
231 return NULL;
232
233 cifs_sb = CIFS_SB(dentry->d_inode->i_sb);
234
235 if (cifs_sb->tcon == NULL)
236 return NULL;
237
238 search_path = build_path_from_dentry(dentry);
239 if (search_path == NULL)
240 return NULL;
241
242 if (cifs_sb->tcon->Flags & SMB_SHARE_IS_IN_DFS) {
243 int i;
244 /* we should use full path name for correct working with DFS */
245 l_max_len = strnlen(cifs_sb->tcon->treeName, MAX_TREE_SIZE+1) +
246 strnlen(search_path, MAX_PATHCONF) + 1;
247 tmp_path = kmalloc(l_max_len, GFP_KERNEL);
248 if (tmp_path == NULL) {
249 kfree(search_path);
250 return NULL;
251 }
252 strncpy(tmp_path, cifs_sb->tcon->treeName, l_max_len);
253 tmp_path[l_max_len-1] = 0;
254 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)
255 for (i = 0; i < l_max_len; i++) {
256 if (tmp_path[i] == '\\')
257 tmp_path[i] = '/';
258 }
259 strncat(tmp_path, search_path, l_max_len - strlen(tmp_path));
260
261 full_path = tmp_path;
262 kfree(search_path);
263 } else {
264 full_path = search_path;
265 }
266 return full_path;
267}
268
269static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd, 222static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd,
270 struct list_head *mntlist) 223 struct list_head *mntlist)
271{ 224{
@@ -333,7 +286,7 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
333 goto out_err; 286 goto out_err;
334 } 287 }
335 288
336 full_path = build_full_dfs_path_from_dentry(dentry); 289 full_path = build_path_from_dentry(dentry);
337 if (full_path == NULL) { 290 if (full_path == NULL) {
338 rc = -ENOMEM; 291 rc = -ENOMEM;
339 goto out_err; 292 goto out_err;