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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * (C) 2001 Clemson University and The University of Chicago
4 *
5 * See COPYING in top-level directory.
6 */
7
8/*
9 * Linux VFS namei operations.
10 */
11
12#include "protocol.h"
13#include "orangefs-kernel.h"
14
15/*
16 * Get a newly allocated inode to go with a negative dentry.
17 */
18static int orangefs_create(struct mnt_idmap *idmap,
19 struct inode *dir,
20 struct dentry *dentry,
21 umode_t mode,
22 bool exclusive)
23{
24 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
25 struct orangefs_kernel_op_s *new_op;
26 struct orangefs_object_kref ref;
27 struct inode *inode;
28 struct iattr iattr;
29 int ret;
30
31 gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd\n",
32 __func__,
33 dentry);
34
35 new_op = op_alloc(ORANGEFS_VFS_OP_CREATE);
36 if (!new_op)
37 return -ENOMEM;
38
39 new_op->upcall.req.create.parent_refn = parent->refn;
40
41 fill_default_sys_attrs(new_op->upcall.req.create.attributes,
42 ORANGEFS_TYPE_METAFILE, mode);
43
44 strscpy(new_op->upcall.req.create.d_name, dentry->d_name.name);
45
46 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
47
48 gossip_debug(GOSSIP_NAME_DEBUG,
49 "%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
50 __func__,
51 dentry,
52 &new_op->downcall.resp.create.refn.khandle,
53 new_op->downcall.resp.create.refn.fs_id,
54 new_op,
55 ret);
56
57 if (ret < 0)
58 goto out;
59
60 ref = new_op->downcall.resp.create.refn;
61
62 inode = orangefs_new_inode(dir->i_sb, dir, S_IFREG | mode, 0, &ref);
63 if (IS_ERR(inode)) {
64 gossip_err("%s: Failed to allocate inode for file :%pd:\n",
65 __func__,
66 dentry);
67 ret = PTR_ERR(inode);
68 goto out;
69 }
70
71 gossip_debug(GOSSIP_NAME_DEBUG,
72 "%s: Assigned inode :%pU: for file :%pd:\n",
73 __func__,
74 get_khandle_from_ino(inode),
75 dentry);
76
77 d_instantiate_new(dentry, inode);
78 orangefs_set_timeout(dentry);
79
80 gossip_debug(GOSSIP_NAME_DEBUG,
81 "%s: dentry instantiated for %pd\n",
82 __func__,
83 dentry);
84
85 memset(&iattr, 0, sizeof iattr);
86 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
87 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
88 __orangefs_setattr(dir, &iattr);
89 ret = 0;
90out:
91 op_release(new_op);
92 gossip_debug(GOSSIP_NAME_DEBUG,
93 "%s: %pd: returning %d\n",
94 __func__,
95 dentry,
96 ret);
97 return ret;
98}
99
100/*
101 * Attempt to resolve an object name (dentry->d_name), parent handle, and
102 * fsid into a handle for the object.
103 */
104static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
105 unsigned int flags)
106{
107 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
108 struct orangefs_kernel_op_s *new_op;
109 struct inode *inode;
110 int ret = -EINVAL;
111
112 /*
113 * in theory we could skip a lookup here (if the intent is to
114 * create) in order to avoid a potentially failed lookup, but
115 * leaving it in can skip a valid lookup and try to create a file
116 * that already exists (e.g. the vfs already handles checking for
117 * -EEXIST on O_EXCL opens, which is broken if we skip this lookup
118 * in the create path)
119 */
120 gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n",
121 __func__, dentry);
122
123 if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1))
124 return ERR_PTR(-ENAMETOOLONG);
125
126 new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP);
127 if (!new_op)
128 return ERR_PTR(-ENOMEM);
129
130 new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW;
131
132 gossip_debug(GOSSIP_NAME_DEBUG, "%s:%s:%d using parent %pU\n",
133 __FILE__,
134 __func__,
135 __LINE__,
136 &parent->refn.khandle);
137 new_op->upcall.req.lookup.parent_refn = parent->refn;
138
139 strscpy(new_op->upcall.req.lookup.d_name, dentry->d_name.name);
140
141 gossip_debug(GOSSIP_NAME_DEBUG,
142 "%s: doing lookup on %s under %pU,%d\n",
143 __func__,
144 new_op->upcall.req.lookup.d_name,
145 &new_op->upcall.req.lookup.parent_refn.khandle,
146 new_op->upcall.req.lookup.parent_refn.fs_id);
147
148 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
149
150 gossip_debug(GOSSIP_NAME_DEBUG,
151 "Lookup Got %pU, fsid %d (ret=%d)\n",
152 &new_op->downcall.resp.lookup.refn.khandle,
153 new_op->downcall.resp.lookup.refn.fs_id,
154 ret);
155
156 if (ret == 0) {
157 orangefs_set_timeout(dentry);
158 inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn);
159 } else if (ret == -ENOENT) {
160 inode = NULL;
161 } else {
162 /* must be a non-recoverable error */
163 inode = ERR_PTR(ret);
164 }
165
166 op_release(new_op);
167 return d_splice_alias(inode, dentry);
168}
169
170/* return 0 on success; non-zero otherwise */
171static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
172{
173 struct inode *inode = dentry->d_inode;
174 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
175 struct orangefs_kernel_op_s *new_op;
176 struct iattr iattr;
177 int ret;
178
179 gossip_debug(GOSSIP_NAME_DEBUG,
180 "%s: called on %pd\n"
181 " (inode %pU): Parent is %pU | fs_id %d\n",
182 __func__,
183 dentry,
184 get_khandle_from_ino(inode),
185 &parent->refn.khandle,
186 parent->refn.fs_id);
187
188 new_op = op_alloc(ORANGEFS_VFS_OP_REMOVE);
189 if (!new_op)
190 return -ENOMEM;
191
192 new_op->upcall.req.remove.parent_refn = parent->refn;
193 strscpy(new_op->upcall.req.remove.d_name, dentry->d_name.name);
194
195 ret = service_operation(new_op, "orangefs_unlink",
196 get_interruptible_flag(inode));
197
198 gossip_debug(GOSSIP_NAME_DEBUG,
199 "%s: service_operation returned:%d:\n",
200 __func__,
201 ret);
202
203 op_release(new_op);
204
205 if (!ret) {
206 drop_nlink(inode);
207
208 memset(&iattr, 0, sizeof iattr);
209 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
210 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
211 __orangefs_setattr(dir, &iattr);
212 }
213 return ret;
214}
215
216static int orangefs_symlink(struct mnt_idmap *idmap,
217 struct inode *dir,
218 struct dentry *dentry,
219 const char *symname)
220{
221 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
222 struct orangefs_kernel_op_s *new_op;
223 struct orangefs_object_kref ref;
224 struct inode *inode;
225 struct iattr iattr;
226 int mode = 0755;
227 int ret;
228
229 gossip_debug(GOSSIP_NAME_DEBUG, "%s: called\n", __func__);
230
231 if (!symname)
232 return -EINVAL;
233
234 if (strlen(symname)+1 > ORANGEFS_NAME_MAX)
235 return -ENAMETOOLONG;
236
237 new_op = op_alloc(ORANGEFS_VFS_OP_SYMLINK);
238 if (!new_op)
239 return -ENOMEM;
240
241 new_op->upcall.req.sym.parent_refn = parent->refn;
242
243 fill_default_sys_attrs(new_op->upcall.req.sym.attributes,
244 ORANGEFS_TYPE_SYMLINK,
245 mode);
246
247 strscpy(new_op->upcall.req.sym.entry_name, dentry->d_name.name);
248 strscpy(new_op->upcall.req.sym.target, symname);
249
250 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
251
252 gossip_debug(GOSSIP_NAME_DEBUG,
253 "Symlink Got ORANGEFS handle %pU on fsid %d (ret=%d)\n",
254 &new_op->downcall.resp.sym.refn.khandle,
255 new_op->downcall.resp.sym.refn.fs_id, ret);
256
257 if (ret < 0) {
258 gossip_debug(GOSSIP_NAME_DEBUG,
259 "%s: failed with error code %d\n",
260 __func__, ret);
261 goto out;
262 }
263
264 ref = new_op->downcall.resp.sym.refn;
265
266 inode = orangefs_new_inode(dir->i_sb, dir, S_IFLNK | mode, 0, &ref);
267 if (IS_ERR(inode)) {
268 gossip_err
269 ("*** Failed to allocate orangefs symlink inode\n");
270 ret = PTR_ERR(inode);
271 goto out;
272 }
273 /*
274 * This is necessary because orangefs_inode_getattr will not
275 * re-read symlink size as it is impossible for it to change.
276 * Invalidating the cache does not help. orangefs_new_inode
277 * does not set the correct size (it does not know symname).
278 */
279 inode->i_size = strlen(symname);
280
281 gossip_debug(GOSSIP_NAME_DEBUG,
282 "Assigned symlink inode new number of %pU\n",
283 get_khandle_from_ino(inode));
284
285 d_instantiate_new(dentry, inode);
286 orangefs_set_timeout(dentry);
287
288 gossip_debug(GOSSIP_NAME_DEBUG,
289 "Inode (Symlink) %pU -> %pd\n",
290 get_khandle_from_ino(inode),
291 dentry);
292
293 memset(&iattr, 0, sizeof iattr);
294 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
295 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
296 __orangefs_setattr(dir, &iattr);
297 ret = 0;
298out:
299 op_release(new_op);
300 return ret;
301}
302
303static int orangefs_mkdir(struct mnt_idmap *idmap, struct inode *dir,
304 struct dentry *dentry, umode_t mode)
305{
306 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
307 struct orangefs_kernel_op_s *new_op;
308 struct orangefs_object_kref ref;
309 struct inode *inode;
310 struct iattr iattr;
311 int ret;
312
313 new_op = op_alloc(ORANGEFS_VFS_OP_MKDIR);
314 if (!new_op)
315 return -ENOMEM;
316
317 new_op->upcall.req.mkdir.parent_refn = parent->refn;
318
319 fill_default_sys_attrs(new_op->upcall.req.mkdir.attributes,
320 ORANGEFS_TYPE_DIRECTORY, mode);
321
322 strscpy(new_op->upcall.req.mkdir.d_name, dentry->d_name.name);
323
324 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
325
326 gossip_debug(GOSSIP_NAME_DEBUG,
327 "Mkdir Got ORANGEFS handle %pU on fsid %d\n",
328 &new_op->downcall.resp.mkdir.refn.khandle,
329 new_op->downcall.resp.mkdir.refn.fs_id);
330
331 if (ret < 0) {
332 gossip_debug(GOSSIP_NAME_DEBUG,
333 "%s: failed with error code %d\n",
334 __func__, ret);
335 goto out;
336 }
337
338 ref = new_op->downcall.resp.mkdir.refn;
339
340 inode = orangefs_new_inode(dir->i_sb, dir, S_IFDIR | mode, 0, &ref);
341 if (IS_ERR(inode)) {
342 gossip_err("*** Failed to allocate orangefs dir inode\n");
343 ret = PTR_ERR(inode);
344 goto out;
345 }
346
347 gossip_debug(GOSSIP_NAME_DEBUG,
348 "Assigned dir inode new number of %pU\n",
349 get_khandle_from_ino(inode));
350
351 d_instantiate_new(dentry, inode);
352 orangefs_set_timeout(dentry);
353
354 gossip_debug(GOSSIP_NAME_DEBUG,
355 "Inode (Directory) %pU -> %pd\n",
356 get_khandle_from_ino(inode),
357 dentry);
358
359 /*
360 * NOTE: we have no good way to keep nlink consistent for directories
361 * across clients; keep constant at 1.
362 */
363 memset(&iattr, 0, sizeof iattr);
364 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
365 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
366 __orangefs_setattr(dir, &iattr);
367out:
368 op_release(new_op);
369 return ret;
370}
371
372static int orangefs_rename(struct mnt_idmap *idmap,
373 struct inode *old_dir,
374 struct dentry *old_dentry,
375 struct inode *new_dir,
376 struct dentry *new_dentry,
377 unsigned int flags)
378{
379 struct orangefs_kernel_op_s *new_op;
380 struct iattr iattr;
381 int ret;
382
383 if (flags)
384 return -EINVAL;
385
386 gossip_debug(GOSSIP_NAME_DEBUG,
387 "orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
388 old_dentry, new_dentry, d_count(new_dentry));
389
390 memset(&iattr, 0, sizeof iattr);
391 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
392 iattr.ia_mtime = iattr.ia_ctime = current_time(new_dir);
393 __orangefs_setattr(new_dir, &iattr);
394
395 new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
396 if (!new_op)
397 return -EINVAL;
398
399 new_op->upcall.req.rename.old_parent_refn = ORANGEFS_I(old_dir)->refn;
400 new_op->upcall.req.rename.new_parent_refn = ORANGEFS_I(new_dir)->refn;
401
402 strscpy(new_op->upcall.req.rename.d_old_name, old_dentry->d_name.name);
403 strscpy(new_op->upcall.req.rename.d_new_name, new_dentry->d_name.name);
404
405 ret = service_operation(new_op,
406 "orangefs_rename",
407 get_interruptible_flag(old_dentry->d_inode));
408
409 gossip_debug(GOSSIP_NAME_DEBUG,
410 "orangefs_rename: got downcall status %d\n",
411 ret);
412
413 if (new_dentry->d_inode)
414 inode_set_ctime_current(d_inode(new_dentry));
415
416 op_release(new_op);
417 return ret;
418}
419
420/* ORANGEFS implementation of VFS inode operations for directories */
421const struct inode_operations orangefs_dir_inode_operations = {
422 .lookup = orangefs_lookup,
423 .get_inode_acl = orangefs_get_acl,
424 .set_acl = orangefs_set_acl,
425 .create = orangefs_create,
426 .unlink = orangefs_unlink,
427 .symlink = orangefs_symlink,
428 .mkdir = orangefs_mkdir,
429 .rmdir = orangefs_unlink,
430 .rename = orangefs_rename,
431 .setattr = orangefs_setattr,
432 .getattr = orangefs_getattr,
433 .listxattr = orangefs_listxattr,
434 .permission = orangefs_permission,
435 .update_time = orangefs_update_time,
436};
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * (C) 2001 Clemson University and The University of Chicago
4 *
5 * See COPYING in top-level directory.
6 */
7
8/*
9 * Linux VFS namei operations.
10 */
11
12#include "protocol.h"
13#include "orangefs-kernel.h"
14
15/*
16 * Get a newly allocated inode to go with a negative dentry.
17 */
18static int orangefs_create(struct inode *dir,
19 struct dentry *dentry,
20 umode_t mode,
21 bool exclusive)
22{
23 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
24 struct orangefs_kernel_op_s *new_op;
25 struct orangefs_object_kref ref;
26 struct inode *inode;
27 struct iattr iattr;
28 int ret;
29
30 gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd\n",
31 __func__,
32 dentry);
33
34 new_op = op_alloc(ORANGEFS_VFS_OP_CREATE);
35 if (!new_op)
36 return -ENOMEM;
37
38 new_op->upcall.req.create.parent_refn = parent->refn;
39
40 fill_default_sys_attrs(new_op->upcall.req.create.attributes,
41 ORANGEFS_TYPE_METAFILE, mode);
42
43 strncpy(new_op->upcall.req.create.d_name,
44 dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
45
46 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
47
48 gossip_debug(GOSSIP_NAME_DEBUG,
49 "%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
50 __func__,
51 dentry,
52 &new_op->downcall.resp.create.refn.khandle,
53 new_op->downcall.resp.create.refn.fs_id,
54 new_op,
55 ret);
56
57 if (ret < 0)
58 goto out;
59
60 ref = new_op->downcall.resp.create.refn;
61 op_release(new_op);
62
63 inode = orangefs_new_inode(dir->i_sb, dir, S_IFREG | mode, 0, &ref);
64 if (IS_ERR(inode)) {
65 gossip_err("%s: Failed to allocate inode for file :%pd:\n",
66 __func__,
67 dentry);
68 ret = PTR_ERR(inode);
69 goto out;
70 }
71
72 gossip_debug(GOSSIP_NAME_DEBUG,
73 "%s: Assigned inode :%pU: for file :%pd:\n",
74 __func__,
75 get_khandle_from_ino(inode),
76 dentry);
77
78 d_instantiate_new(dentry, inode);
79 orangefs_set_timeout(dentry);
80 ORANGEFS_I(inode)->getattr_time = jiffies - 1;
81 ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
82
83 gossip_debug(GOSSIP_NAME_DEBUG,
84 "%s: dentry instantiated for %pd\n",
85 __func__,
86 dentry);
87
88 dir->i_mtime = dir->i_ctime = current_time(dir);
89 memset(&iattr, 0, sizeof iattr);
90 iattr.ia_valid |= ATTR_MTIME;
91 orangefs_inode_setattr(dir, &iattr);
92 mark_inode_dirty_sync(dir);
93 ret = 0;
94out:
95 gossip_debug(GOSSIP_NAME_DEBUG,
96 "%s: %pd: returning %d\n",
97 __func__,
98 dentry,
99 ret);
100 return ret;
101}
102
103/*
104 * Attempt to resolve an object name (dentry->d_name), parent handle, and
105 * fsid into a handle for the object.
106 */
107static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
108 unsigned int flags)
109{
110 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
111 struct orangefs_kernel_op_s *new_op;
112 struct inode *inode;
113 struct dentry *res;
114 int ret = -EINVAL;
115
116 /*
117 * in theory we could skip a lookup here (if the intent is to
118 * create) in order to avoid a potentially failed lookup, but
119 * leaving it in can skip a valid lookup and try to create a file
120 * that already exists (e.g. the vfs already handles checking for
121 * -EEXIST on O_EXCL opens, which is broken if we skip this lookup
122 * in the create path)
123 */
124 gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n",
125 __func__, dentry);
126
127 if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1))
128 return ERR_PTR(-ENAMETOOLONG);
129
130 new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP);
131 if (!new_op)
132 return ERR_PTR(-ENOMEM);
133
134 new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW;
135
136 gossip_debug(GOSSIP_NAME_DEBUG, "%s:%s:%d using parent %pU\n",
137 __FILE__,
138 __func__,
139 __LINE__,
140 &parent->refn.khandle);
141 new_op->upcall.req.lookup.parent_refn = parent->refn;
142
143 strncpy(new_op->upcall.req.lookup.d_name, dentry->d_name.name,
144 ORANGEFS_NAME_MAX - 1);
145
146 gossip_debug(GOSSIP_NAME_DEBUG,
147 "%s: doing lookup on %s under %pU,%d\n",
148 __func__,
149 new_op->upcall.req.lookup.d_name,
150 &new_op->upcall.req.lookup.parent_refn.khandle,
151 new_op->upcall.req.lookup.parent_refn.fs_id);
152
153 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
154
155 gossip_debug(GOSSIP_NAME_DEBUG,
156 "Lookup Got %pU, fsid %d (ret=%d)\n",
157 &new_op->downcall.resp.lookup.refn.khandle,
158 new_op->downcall.resp.lookup.refn.fs_id,
159 ret);
160
161 if (ret < 0) {
162 if (ret == -ENOENT) {
163 /*
164 * if no inode was found, add a negative dentry to
165 * dcache anyway; if we don't, we don't hold expected
166 * lookup semantics and we most noticeably break
167 * during directory renames.
168 *
169 * however, if the operation failed or exited, do not
170 * add the dentry (e.g. in the case that a touch is
171 * issued on a file that already exists that was
172 * interrupted during this lookup -- no need to add
173 * another negative dentry for an existing file)
174 */
175
176 gossip_debug(GOSSIP_NAME_DEBUG,
177 "orangefs_lookup: Adding *negative* dentry "
178 "%p for %pd\n",
179 dentry,
180 dentry);
181
182 d_add(dentry, NULL);
183 res = NULL;
184 goto out;
185 }
186
187 /* must be a non-recoverable error */
188 res = ERR_PTR(ret);
189 goto out;
190 }
191
192 orangefs_set_timeout(dentry);
193
194 inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn);
195 if (IS_ERR(inode)) {
196 gossip_debug(GOSSIP_NAME_DEBUG,
197 "error %ld from iget\n", PTR_ERR(inode));
198 res = ERR_CAST(inode);
199 goto out;
200 }
201
202 gossip_debug(GOSSIP_NAME_DEBUG,
203 "%s:%s:%d "
204 "Found good inode [%lu] with count [%d]\n",
205 __FILE__,
206 __func__,
207 __LINE__,
208 inode->i_ino,
209 (int)atomic_read(&inode->i_count));
210
211 /* update dentry/inode pair into dcache */
212 res = d_splice_alias(inode, dentry);
213
214 gossip_debug(GOSSIP_NAME_DEBUG,
215 "Lookup success (inode ct = %d)\n",
216 (int)atomic_read(&inode->i_count));
217out:
218 op_release(new_op);
219 return res;
220}
221
222/* return 0 on success; non-zero otherwise */
223static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
224{
225 struct inode *inode = dentry->d_inode;
226 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
227 struct orangefs_kernel_op_s *new_op;
228 struct iattr iattr;
229 int ret;
230
231 gossip_debug(GOSSIP_NAME_DEBUG,
232 "%s: called on %pd\n"
233 " (inode %pU): Parent is %pU | fs_id %d\n",
234 __func__,
235 dentry,
236 get_khandle_from_ino(inode),
237 &parent->refn.khandle,
238 parent->refn.fs_id);
239
240 new_op = op_alloc(ORANGEFS_VFS_OP_REMOVE);
241 if (!new_op)
242 return -ENOMEM;
243
244 new_op->upcall.req.remove.parent_refn = parent->refn;
245 strncpy(new_op->upcall.req.remove.d_name, dentry->d_name.name,
246 ORANGEFS_NAME_MAX - 1);
247
248 ret = service_operation(new_op, "orangefs_unlink",
249 get_interruptible_flag(inode));
250
251 gossip_debug(GOSSIP_NAME_DEBUG,
252 "%s: service_operation returned:%d:\n",
253 __func__,
254 ret);
255
256 op_release(new_op);
257
258 if (!ret) {
259 drop_nlink(inode);
260
261 dir->i_mtime = dir->i_ctime = current_time(dir);
262 memset(&iattr, 0, sizeof iattr);
263 iattr.ia_valid |= ATTR_MTIME;
264 orangefs_inode_setattr(dir, &iattr);
265 mark_inode_dirty_sync(dir);
266 }
267 return ret;
268}
269
270static int orangefs_symlink(struct inode *dir,
271 struct dentry *dentry,
272 const char *symname)
273{
274 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
275 struct orangefs_kernel_op_s *new_op;
276 struct orangefs_object_kref ref;
277 struct inode *inode;
278 struct iattr iattr;
279 int mode = 755;
280 int ret;
281
282 gossip_debug(GOSSIP_NAME_DEBUG, "%s: called\n", __func__);
283
284 if (!symname)
285 return -EINVAL;
286
287 if (strlen(symname)+1 > ORANGEFS_NAME_MAX)
288 return -ENAMETOOLONG;
289
290 new_op = op_alloc(ORANGEFS_VFS_OP_SYMLINK);
291 if (!new_op)
292 return -ENOMEM;
293
294 new_op->upcall.req.sym.parent_refn = parent->refn;
295
296 fill_default_sys_attrs(new_op->upcall.req.sym.attributes,
297 ORANGEFS_TYPE_SYMLINK,
298 mode);
299
300 strncpy(new_op->upcall.req.sym.entry_name,
301 dentry->d_name.name,
302 ORANGEFS_NAME_MAX - 1);
303 strncpy(new_op->upcall.req.sym.target, symname, ORANGEFS_NAME_MAX - 1);
304
305 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
306
307 gossip_debug(GOSSIP_NAME_DEBUG,
308 "Symlink Got ORANGEFS handle %pU on fsid %d (ret=%d)\n",
309 &new_op->downcall.resp.sym.refn.khandle,
310 new_op->downcall.resp.sym.refn.fs_id, ret);
311
312 if (ret < 0) {
313 gossip_debug(GOSSIP_NAME_DEBUG,
314 "%s: failed with error code %d\n",
315 __func__, ret);
316 goto out;
317 }
318
319 ref = new_op->downcall.resp.sym.refn;
320 op_release(new_op);
321
322 inode = orangefs_new_inode(dir->i_sb, dir, S_IFLNK | mode, 0, &ref);
323 if (IS_ERR(inode)) {
324 gossip_err
325 ("*** Failed to allocate orangefs symlink inode\n");
326 ret = PTR_ERR(inode);
327 goto out;
328 }
329
330 gossip_debug(GOSSIP_NAME_DEBUG,
331 "Assigned symlink inode new number of %pU\n",
332 get_khandle_from_ino(inode));
333
334 d_instantiate_new(dentry, inode);
335 orangefs_set_timeout(dentry);
336 ORANGEFS_I(inode)->getattr_time = jiffies - 1;
337 ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
338
339 gossip_debug(GOSSIP_NAME_DEBUG,
340 "Inode (Symlink) %pU -> %pd\n",
341 get_khandle_from_ino(inode),
342 dentry);
343
344 dir->i_mtime = dir->i_ctime = current_time(dir);
345 memset(&iattr, 0, sizeof iattr);
346 iattr.ia_valid |= ATTR_MTIME;
347 orangefs_inode_setattr(dir, &iattr);
348 mark_inode_dirty_sync(dir);
349 ret = 0;
350out:
351 return ret;
352}
353
354static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
355{
356 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
357 struct orangefs_kernel_op_s *new_op;
358 struct orangefs_object_kref ref;
359 struct inode *inode;
360 struct iattr iattr;
361 int ret;
362
363 new_op = op_alloc(ORANGEFS_VFS_OP_MKDIR);
364 if (!new_op)
365 return -ENOMEM;
366
367 new_op->upcall.req.mkdir.parent_refn = parent->refn;
368
369 fill_default_sys_attrs(new_op->upcall.req.mkdir.attributes,
370 ORANGEFS_TYPE_DIRECTORY, mode);
371
372 strncpy(new_op->upcall.req.mkdir.d_name,
373 dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
374
375 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
376
377 gossip_debug(GOSSIP_NAME_DEBUG,
378 "Mkdir Got ORANGEFS handle %pU on fsid %d\n",
379 &new_op->downcall.resp.mkdir.refn.khandle,
380 new_op->downcall.resp.mkdir.refn.fs_id);
381
382 if (ret < 0) {
383 gossip_debug(GOSSIP_NAME_DEBUG,
384 "%s: failed with error code %d\n",
385 __func__, ret);
386 goto out;
387 }
388
389 ref = new_op->downcall.resp.mkdir.refn;
390 op_release(new_op);
391
392 inode = orangefs_new_inode(dir->i_sb, dir, S_IFDIR | mode, 0, &ref);
393 if (IS_ERR(inode)) {
394 gossip_err("*** Failed to allocate orangefs dir inode\n");
395 ret = PTR_ERR(inode);
396 goto out;
397 }
398
399 gossip_debug(GOSSIP_NAME_DEBUG,
400 "Assigned dir inode new number of %pU\n",
401 get_khandle_from_ino(inode));
402
403 d_instantiate_new(dentry, inode);
404 orangefs_set_timeout(dentry);
405 ORANGEFS_I(inode)->getattr_time = jiffies - 1;
406 ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
407
408 gossip_debug(GOSSIP_NAME_DEBUG,
409 "Inode (Directory) %pU -> %pd\n",
410 get_khandle_from_ino(inode),
411 dentry);
412
413 /*
414 * NOTE: we have no good way to keep nlink consistent for directories
415 * across clients; keep constant at 1.
416 */
417 dir->i_mtime = dir->i_ctime = current_time(dir);
418 memset(&iattr, 0, sizeof iattr);
419 iattr.ia_valid |= ATTR_MTIME;
420 orangefs_inode_setattr(dir, &iattr);
421 mark_inode_dirty_sync(dir);
422out:
423 return ret;
424}
425
426static int orangefs_rename(struct inode *old_dir,
427 struct dentry *old_dentry,
428 struct inode *new_dir,
429 struct dentry *new_dentry,
430 unsigned int flags)
431{
432 struct orangefs_kernel_op_s *new_op;
433 int ret;
434
435 if (flags)
436 return -EINVAL;
437
438 gossip_debug(GOSSIP_NAME_DEBUG,
439 "orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
440 old_dentry, new_dentry, d_count(new_dentry));
441
442 ORANGEFS_I(new_dentry->d_parent->d_inode)->getattr_time = jiffies - 1;
443
444 new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
445 if (!new_op)
446 return -EINVAL;
447
448 new_op->upcall.req.rename.old_parent_refn = ORANGEFS_I(old_dir)->refn;
449 new_op->upcall.req.rename.new_parent_refn = ORANGEFS_I(new_dir)->refn;
450
451 strncpy(new_op->upcall.req.rename.d_old_name,
452 old_dentry->d_name.name,
453 ORANGEFS_NAME_MAX - 1);
454 strncpy(new_op->upcall.req.rename.d_new_name,
455 new_dentry->d_name.name,
456 ORANGEFS_NAME_MAX - 1);
457
458 ret = service_operation(new_op,
459 "orangefs_rename",
460 get_interruptible_flag(old_dentry->d_inode));
461
462 gossip_debug(GOSSIP_NAME_DEBUG,
463 "orangefs_rename: got downcall status %d\n",
464 ret);
465
466 if (new_dentry->d_inode)
467 new_dentry->d_inode->i_ctime = current_time(new_dentry->d_inode);
468
469 op_release(new_op);
470 return ret;
471}
472
473/* ORANGEFS implementation of VFS inode operations for directories */
474const struct inode_operations orangefs_dir_inode_operations = {
475 .lookup = orangefs_lookup,
476 .get_acl = orangefs_get_acl,
477 .set_acl = orangefs_set_acl,
478 .create = orangefs_create,
479 .unlink = orangefs_unlink,
480 .symlink = orangefs_symlink,
481 .mkdir = orangefs_mkdir,
482 .rmdir = orangefs_unlink,
483 .rename = orangefs_rename,
484 .setattr = orangefs_setattr,
485 .getattr = orangefs_getattr,
486 .listxattr = orangefs_listxattr,
487 .permission = orangefs_permission,
488 .update_time = orangefs_update_time,
489};