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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 strncpy(new_op->upcall.req.create.d_name,
45 dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
46
47 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
48
49 gossip_debug(GOSSIP_NAME_DEBUG,
50 "%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n",
51 __func__,
52 dentry,
53 &new_op->downcall.resp.create.refn.khandle,
54 new_op->downcall.resp.create.refn.fs_id,
55 new_op,
56 ret);
57
58 if (ret < 0)
59 goto out;
60
61 ref = new_op->downcall.resp.create.refn;
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
81 gossip_debug(GOSSIP_NAME_DEBUG,
82 "%s: dentry instantiated for %pd\n",
83 __func__,
84 dentry);
85
86 memset(&iattr, 0, sizeof iattr);
87 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
88 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
89 __orangefs_setattr(dir, &iattr);
90 ret = 0;
91out:
92 op_release(new_op);
93 gossip_debug(GOSSIP_NAME_DEBUG,
94 "%s: %pd: returning %d\n",
95 __func__,
96 dentry,
97 ret);
98 return ret;
99}
100
101/*
102 * Attempt to resolve an object name (dentry->d_name), parent handle, and
103 * fsid into a handle for the object.
104 */
105static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
106 unsigned int flags)
107{
108 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
109 struct orangefs_kernel_op_s *new_op;
110 struct inode *inode;
111 int ret = -EINVAL;
112
113 /*
114 * in theory we could skip a lookup here (if the intent is to
115 * create) in order to avoid a potentially failed lookup, but
116 * leaving it in can skip a valid lookup and try to create a file
117 * that already exists (e.g. the vfs already handles checking for
118 * -EEXIST on O_EXCL opens, which is broken if we skip this lookup
119 * in the create path)
120 */
121 gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n",
122 __func__, dentry);
123
124 if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1))
125 return ERR_PTR(-ENAMETOOLONG);
126
127 new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP);
128 if (!new_op)
129 return ERR_PTR(-ENOMEM);
130
131 new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW;
132
133 gossip_debug(GOSSIP_NAME_DEBUG, "%s:%s:%d using parent %pU\n",
134 __FILE__,
135 __func__,
136 __LINE__,
137 &parent->refn.khandle);
138 new_op->upcall.req.lookup.parent_refn = parent->refn;
139
140 strncpy(new_op->upcall.req.lookup.d_name, dentry->d_name.name,
141 ORANGEFS_NAME_MAX - 1);
142
143 gossip_debug(GOSSIP_NAME_DEBUG,
144 "%s: doing lookup on %s under %pU,%d\n",
145 __func__,
146 new_op->upcall.req.lookup.d_name,
147 &new_op->upcall.req.lookup.parent_refn.khandle,
148 new_op->upcall.req.lookup.parent_refn.fs_id);
149
150 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
151
152 gossip_debug(GOSSIP_NAME_DEBUG,
153 "Lookup Got %pU, fsid %d (ret=%d)\n",
154 &new_op->downcall.resp.lookup.refn.khandle,
155 new_op->downcall.resp.lookup.refn.fs_id,
156 ret);
157
158 if (ret == 0) {
159 orangefs_set_timeout(dentry);
160 inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn);
161 } else if (ret == -ENOENT) {
162 inode = NULL;
163 } else {
164 /* must be a non-recoverable error */
165 inode = ERR_PTR(ret);
166 }
167
168 op_release(new_op);
169 return d_splice_alias(inode, dentry);
170}
171
172/* return 0 on success; non-zero otherwise */
173static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
174{
175 struct inode *inode = dentry->d_inode;
176 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
177 struct orangefs_kernel_op_s *new_op;
178 struct iattr iattr;
179 int ret;
180
181 gossip_debug(GOSSIP_NAME_DEBUG,
182 "%s: called on %pd\n"
183 " (inode %pU): Parent is %pU | fs_id %d\n",
184 __func__,
185 dentry,
186 get_khandle_from_ino(inode),
187 &parent->refn.khandle,
188 parent->refn.fs_id);
189
190 new_op = op_alloc(ORANGEFS_VFS_OP_REMOVE);
191 if (!new_op)
192 return -ENOMEM;
193
194 new_op->upcall.req.remove.parent_refn = parent->refn;
195 strncpy(new_op->upcall.req.remove.d_name, dentry->d_name.name,
196 ORANGEFS_NAME_MAX - 1);
197
198 ret = service_operation(new_op, "orangefs_unlink",
199 get_interruptible_flag(inode));
200
201 gossip_debug(GOSSIP_NAME_DEBUG,
202 "%s: service_operation returned:%d:\n",
203 __func__,
204 ret);
205
206 op_release(new_op);
207
208 if (!ret) {
209 drop_nlink(inode);
210
211 memset(&iattr, 0, sizeof iattr);
212 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
213 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
214 __orangefs_setattr(dir, &iattr);
215 }
216 return ret;
217}
218
219static int orangefs_symlink(struct mnt_idmap *idmap,
220 struct inode *dir,
221 struct dentry *dentry,
222 const char *symname)
223{
224 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
225 struct orangefs_kernel_op_s *new_op;
226 struct orangefs_object_kref ref;
227 struct inode *inode;
228 struct iattr iattr;
229 int mode = 0755;
230 int ret;
231
232 gossip_debug(GOSSIP_NAME_DEBUG, "%s: called\n", __func__);
233
234 if (!symname)
235 return -EINVAL;
236
237 if (strlen(symname)+1 > ORANGEFS_NAME_MAX)
238 return -ENAMETOOLONG;
239
240 new_op = op_alloc(ORANGEFS_VFS_OP_SYMLINK);
241 if (!new_op)
242 return -ENOMEM;
243
244 new_op->upcall.req.sym.parent_refn = parent->refn;
245
246 fill_default_sys_attrs(new_op->upcall.req.sym.attributes,
247 ORANGEFS_TYPE_SYMLINK,
248 mode);
249
250 strncpy(new_op->upcall.req.sym.entry_name,
251 dentry->d_name.name,
252 ORANGEFS_NAME_MAX - 1);
253 strncpy(new_op->upcall.req.sym.target, symname, ORANGEFS_NAME_MAX - 1);
254
255 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
256
257 gossip_debug(GOSSIP_NAME_DEBUG,
258 "Symlink Got ORANGEFS handle %pU on fsid %d (ret=%d)\n",
259 &new_op->downcall.resp.sym.refn.khandle,
260 new_op->downcall.resp.sym.refn.fs_id, ret);
261
262 if (ret < 0) {
263 gossip_debug(GOSSIP_NAME_DEBUG,
264 "%s: failed with error code %d\n",
265 __func__, ret);
266 goto out;
267 }
268
269 ref = new_op->downcall.resp.sym.refn;
270
271 inode = orangefs_new_inode(dir->i_sb, dir, S_IFLNK | mode, 0, &ref);
272 if (IS_ERR(inode)) {
273 gossip_err
274 ("*** Failed to allocate orangefs symlink inode\n");
275 ret = PTR_ERR(inode);
276 goto out;
277 }
278 /*
279 * This is necessary because orangefs_inode_getattr will not
280 * re-read symlink size as it is impossible for it to change.
281 * Invalidating the cache does not help. orangefs_new_inode
282 * does not set the correct size (it does not know symname).
283 */
284 inode->i_size = strlen(symname);
285
286 gossip_debug(GOSSIP_NAME_DEBUG,
287 "Assigned symlink inode new number of %pU\n",
288 get_khandle_from_ino(inode));
289
290 d_instantiate_new(dentry, inode);
291 orangefs_set_timeout(dentry);
292
293 gossip_debug(GOSSIP_NAME_DEBUG,
294 "Inode (Symlink) %pU -> %pd\n",
295 get_khandle_from_ino(inode),
296 dentry);
297
298 memset(&iattr, 0, sizeof iattr);
299 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
300 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
301 __orangefs_setattr(dir, &iattr);
302 ret = 0;
303out:
304 op_release(new_op);
305 return ret;
306}
307
308static int orangefs_mkdir(struct mnt_idmap *idmap, struct inode *dir,
309 struct dentry *dentry, umode_t mode)
310{
311 struct orangefs_inode_s *parent = ORANGEFS_I(dir);
312 struct orangefs_kernel_op_s *new_op;
313 struct orangefs_object_kref ref;
314 struct inode *inode;
315 struct iattr iattr;
316 int ret;
317
318 new_op = op_alloc(ORANGEFS_VFS_OP_MKDIR);
319 if (!new_op)
320 return -ENOMEM;
321
322 new_op->upcall.req.mkdir.parent_refn = parent->refn;
323
324 fill_default_sys_attrs(new_op->upcall.req.mkdir.attributes,
325 ORANGEFS_TYPE_DIRECTORY, mode);
326
327 strncpy(new_op->upcall.req.mkdir.d_name,
328 dentry->d_name.name, ORANGEFS_NAME_MAX - 1);
329
330 ret = service_operation(new_op, __func__, get_interruptible_flag(dir));
331
332 gossip_debug(GOSSIP_NAME_DEBUG,
333 "Mkdir Got ORANGEFS handle %pU on fsid %d\n",
334 &new_op->downcall.resp.mkdir.refn.khandle,
335 new_op->downcall.resp.mkdir.refn.fs_id);
336
337 if (ret < 0) {
338 gossip_debug(GOSSIP_NAME_DEBUG,
339 "%s: failed with error code %d\n",
340 __func__, ret);
341 goto out;
342 }
343
344 ref = new_op->downcall.resp.mkdir.refn;
345
346 inode = orangefs_new_inode(dir->i_sb, dir, S_IFDIR | mode, 0, &ref);
347 if (IS_ERR(inode)) {
348 gossip_err("*** Failed to allocate orangefs dir inode\n");
349 ret = PTR_ERR(inode);
350 goto out;
351 }
352
353 gossip_debug(GOSSIP_NAME_DEBUG,
354 "Assigned dir inode new number of %pU\n",
355 get_khandle_from_ino(inode));
356
357 d_instantiate_new(dentry, inode);
358 orangefs_set_timeout(dentry);
359
360 gossip_debug(GOSSIP_NAME_DEBUG,
361 "Inode (Directory) %pU -> %pd\n",
362 get_khandle_from_ino(inode),
363 dentry);
364
365 /*
366 * NOTE: we have no good way to keep nlink consistent for directories
367 * across clients; keep constant at 1.
368 */
369 memset(&iattr, 0, sizeof iattr);
370 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
371 iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
372 __orangefs_setattr(dir, &iattr);
373out:
374 op_release(new_op);
375 return ret;
376}
377
378static int orangefs_rename(struct mnt_idmap *idmap,
379 struct inode *old_dir,
380 struct dentry *old_dentry,
381 struct inode *new_dir,
382 struct dentry *new_dentry,
383 unsigned int flags)
384{
385 struct orangefs_kernel_op_s *new_op;
386 struct iattr iattr;
387 int ret;
388
389 if (flags)
390 return -EINVAL;
391
392 gossip_debug(GOSSIP_NAME_DEBUG,
393 "orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
394 old_dentry, new_dentry, d_count(new_dentry));
395
396 memset(&iattr, 0, sizeof iattr);
397 iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
398 iattr.ia_mtime = iattr.ia_ctime = current_time(new_dir);
399 __orangefs_setattr(new_dir, &iattr);
400
401 new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
402 if (!new_op)
403 return -EINVAL;
404
405 new_op->upcall.req.rename.old_parent_refn = ORANGEFS_I(old_dir)->refn;
406 new_op->upcall.req.rename.new_parent_refn = ORANGEFS_I(new_dir)->refn;
407
408 strncpy(new_op->upcall.req.rename.d_old_name,
409 old_dentry->d_name.name,
410 ORANGEFS_NAME_MAX - 1);
411 strncpy(new_op->upcall.req.rename.d_new_name,
412 new_dentry->d_name.name,
413 ORANGEFS_NAME_MAX - 1);
414
415 ret = service_operation(new_op,
416 "orangefs_rename",
417 get_interruptible_flag(old_dentry->d_inode));
418
419 gossip_debug(GOSSIP_NAME_DEBUG,
420 "orangefs_rename: got downcall status %d\n",
421 ret);
422
423 if (new_dentry->d_inode)
424 inode_set_ctime_current(d_inode(new_dentry));
425
426 op_release(new_op);
427 return ret;
428}
429
430/* ORANGEFS implementation of VFS inode operations for directories */
431const struct inode_operations orangefs_dir_inode_operations = {
432 .lookup = orangefs_lookup,
433 .get_inode_acl = orangefs_get_acl,
434 .set_acl = orangefs_set_acl,
435 .create = orangefs_create,
436 .unlink = orangefs_unlink,
437 .symlink = orangefs_symlink,
438 .mkdir = orangefs_mkdir,
439 .rmdir = orangefs_unlink,
440 .rename = orangefs_rename,
441 .setattr = orangefs_setattr,
442 .getattr = orangefs_getattr,
443 .listxattr = orangefs_listxattr,
444 .permission = orangefs_permission,
445 .update_time = orangefs_update_time,
446};
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};