1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 /* 2 /*
3 * (C) 2001 Clemson University and The Univers 3 * (C) 2001 Clemson University and The University of Chicago
4 * 4 *
5 * See COPYING in top-level directory. 5 * See COPYING in top-level directory.
6 */ 6 */
7 7
8 #include "protocol.h" 8 #include "protocol.h"
9 #include "orangefs-kernel.h" 9 #include "orangefs-kernel.h"
10 #include "orangefs-bufmap.h" 10 #include "orangefs-bufmap.h"
11 11
12 #include <linux/parser.h> 12 #include <linux/parser.h>
13 #include <linux/hashtable.h> 13 #include <linux/hashtable.h>
14 #include <linux/seq_file.h> 14 #include <linux/seq_file.h>
15 15
16 /* a cache for orangefs-inode objects (i.e. or 16 /* a cache for orangefs-inode objects (i.e. orangefs inode private data) */
17 static struct kmem_cache *orangefs_inode_cache 17 static struct kmem_cache *orangefs_inode_cache;
18 18
19 /* list for storing orangefs specific superblo 19 /* list for storing orangefs specific superblocks in use */
20 LIST_HEAD(orangefs_superblocks); 20 LIST_HEAD(orangefs_superblocks);
21 21
22 DEFINE_SPINLOCK(orangefs_superblocks_lock); 22 DEFINE_SPINLOCK(orangefs_superblocks_lock);
23 23
24 enum { 24 enum {
25 Opt_intr, 25 Opt_intr,
26 Opt_acl, 26 Opt_acl,
27 Opt_local_lock, 27 Opt_local_lock,
28 28
29 Opt_err 29 Opt_err
30 }; 30 };
31 31
32 static const match_table_t tokens = { 32 static const match_table_t tokens = {
33 { Opt_acl, "acl" }, 33 { Opt_acl, "acl" },
34 { Opt_intr, "intr" }, 34 { Opt_intr, "intr" },
35 { Opt_local_lock, "local_lock" } 35 { Opt_local_lock, "local_lock" },
36 { Opt_err, NULL } 36 { Opt_err, NULL }
37 }; 37 };
38 38
39 uint64_t orangefs_features; 39 uint64_t orangefs_features;
40 40
41 static int orangefs_show_options(struct seq_fi 41 static int orangefs_show_options(struct seq_file *m, struct dentry *root)
42 { 42 {
43 struct orangefs_sb_info_s *orangefs_sb 43 struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(root->d_sb);
44 44
45 if (root->d_sb->s_flags & SB_POSIXACL) 45 if (root->d_sb->s_flags & SB_POSIXACL)
46 seq_puts(m, ",acl"); 46 seq_puts(m, ",acl");
47 if (orangefs_sb->flags & ORANGEFS_OPT_ 47 if (orangefs_sb->flags & ORANGEFS_OPT_INTR)
48 seq_puts(m, ",intr"); 48 seq_puts(m, ",intr");
49 if (orangefs_sb->flags & ORANGEFS_OPT_ 49 if (orangefs_sb->flags & ORANGEFS_OPT_LOCAL_LOCK)
50 seq_puts(m, ",local_lock"); 50 seq_puts(m, ",local_lock");
51 return 0; 51 return 0;
52 } 52 }
53 53
54 static int parse_mount_options(struct super_bl 54 static int parse_mount_options(struct super_block *sb, char *options,
55 int silent) 55 int silent)
56 { 56 {
57 struct orangefs_sb_info_s *orangefs_sb 57 struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(sb);
58 substring_t args[MAX_OPT_ARGS]; 58 substring_t args[MAX_OPT_ARGS];
59 char *p; 59 char *p;
60 60
61 /* 61 /*
62 * Force any potential flags that migh 62 * Force any potential flags that might be set from the mount
63 * to zero, ie, initialize to unset. 63 * to zero, ie, initialize to unset.
64 */ 64 */
65 sb->s_flags &= ~SB_POSIXACL; 65 sb->s_flags &= ~SB_POSIXACL;
66 orangefs_sb->flags &= ~ORANGEFS_OPT_IN 66 orangefs_sb->flags &= ~ORANGEFS_OPT_INTR;
67 orangefs_sb->flags &= ~ORANGEFS_OPT_LO 67 orangefs_sb->flags &= ~ORANGEFS_OPT_LOCAL_LOCK;
68 68
69 while ((p = strsep(&options, ",")) != 69 while ((p = strsep(&options, ",")) != NULL) {
70 int token; 70 int token;
71 71
72 if (!*p) 72 if (!*p)
73 continue; 73 continue;
74 74
75 token = match_token(p, tokens, 75 token = match_token(p, tokens, args);
76 switch (token) { 76 switch (token) {
77 case Opt_acl: 77 case Opt_acl:
78 sb->s_flags |= SB_POSI 78 sb->s_flags |= SB_POSIXACL;
79 break; 79 break;
80 case Opt_intr: 80 case Opt_intr:
81 orangefs_sb->flags |= 81 orangefs_sb->flags |= ORANGEFS_OPT_INTR;
82 break; 82 break;
83 case Opt_local_lock: 83 case Opt_local_lock:
84 orangefs_sb->flags |= 84 orangefs_sb->flags |= ORANGEFS_OPT_LOCAL_LOCK;
85 break; 85 break;
86 default: 86 default:
87 goto fail; 87 goto fail;
88 } 88 }
89 } 89 }
90 90
91 return 0; 91 return 0;
92 fail: 92 fail:
93 if (!silent) 93 if (!silent)
94 gossip_err("Error: mount optio 94 gossip_err("Error: mount option [%s] is not supported.\n", p);
95 return -EINVAL; 95 return -EINVAL;
96 } 96 }
97 97
98 static void orangefs_inode_cache_ctor(void *re 98 static void orangefs_inode_cache_ctor(void *req)
99 { 99 {
100 struct orangefs_inode_s *orangefs_inod 100 struct orangefs_inode_s *orangefs_inode = req;
101 101
102 inode_init_once(&orangefs_inode->vfs_i 102 inode_init_once(&orangefs_inode->vfs_inode);
103 init_rwsem(&orangefs_inode->xattr_sem) 103 init_rwsem(&orangefs_inode->xattr_sem);
104 } 104 }
105 105
106 static struct inode *orangefs_alloc_inode(stru 106 static struct inode *orangefs_alloc_inode(struct super_block *sb)
107 { 107 {
108 struct orangefs_inode_s *orangefs_inod 108 struct orangefs_inode_s *orangefs_inode;
109 109
110 orangefs_inode = alloc_inode_sb(sb, or 110 orangefs_inode = alloc_inode_sb(sb, orangefs_inode_cache, GFP_KERNEL);
111 if (!orangefs_inode) 111 if (!orangefs_inode)
112 return NULL; 112 return NULL;
113 113
114 /* 114 /*
115 * We want to clear everything except 115 * We want to clear everything except for rw_semaphore and the
116 * vfs_inode. 116 * vfs_inode.
117 */ 117 */
118 memset(&orangefs_inode->refn.khandle, 118 memset(&orangefs_inode->refn.khandle, 0, 16);
119 orangefs_inode->refn.fs_id = ORANGEFS_ 119 orangefs_inode->refn.fs_id = ORANGEFS_FS_ID_NULL;
120 orangefs_inode->last_failed_block_inde 120 orangefs_inode->last_failed_block_index_read = 0;
121 memset(orangefs_inode->link_target, 0, 121 memset(orangefs_inode->link_target, 0, sizeof(orangefs_inode->link_target));
122 122
123 gossip_debug(GOSSIP_SUPER_DEBUG, 123 gossip_debug(GOSSIP_SUPER_DEBUG,
124 "orangefs_alloc_inode: al 124 "orangefs_alloc_inode: allocated %p\n",
125 &orangefs_inode->vfs_inod 125 &orangefs_inode->vfs_inode);
126 return &orangefs_inode->vfs_inode; 126 return &orangefs_inode->vfs_inode;
127 } 127 }
128 128
129 static void orangefs_free_inode(struct inode * 129 static void orangefs_free_inode(struct inode *inode)
130 { 130 {
131 struct orangefs_inode_s *orangefs_inod 131 struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
132 struct orangefs_cached_xattr *cx; 132 struct orangefs_cached_xattr *cx;
133 struct hlist_node *tmp; 133 struct hlist_node *tmp;
134 int i; 134 int i;
135 135
136 hash_for_each_safe(orangefs_inode->xat 136 hash_for_each_safe(orangefs_inode->xattr_cache, i, tmp, cx, node) {
137 hlist_del(&cx->node); 137 hlist_del(&cx->node);
138 kfree(cx); 138 kfree(cx);
139 } 139 }
140 140
141 kmem_cache_free(orangefs_inode_cache, 141 kmem_cache_free(orangefs_inode_cache, orangefs_inode);
142 } 142 }
143 143
144 static void orangefs_destroy_inode(struct inod 144 static void orangefs_destroy_inode(struct inode *inode)
145 { 145 {
146 struct orangefs_inode_s *orangefs_inod 146 struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
147 147
148 gossip_debug(GOSSIP_SUPER_DEBUG, 148 gossip_debug(GOSSIP_SUPER_DEBUG,
149 "%s: deallocated %p de 149 "%s: deallocated %p destroying inode %pU\n",
150 __func__, orangefs_ino 150 __func__, orangefs_inode, get_khandle_from_ino(inode));
151 } 151 }
152 152
153 static int orangefs_write_inode(struct inode * 153 static int orangefs_write_inode(struct inode *inode,
154 struct writeba 154 struct writeback_control *wbc)
155 { 155 {
156 gossip_debug(GOSSIP_SUPER_DEBUG, "oran 156 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_write_inode\n");
157 return orangefs_inode_setattr(inode); 157 return orangefs_inode_setattr(inode);
158 } 158 }
159 159
160 /* 160 /*
161 * NOTE: information filled in here is typical 161 * NOTE: information filled in here is typically reflected in the
162 * output of the system command 'df' 162 * output of the system command 'df'
163 */ 163 */
164 static int orangefs_statfs(struct dentry *dent 164 static int orangefs_statfs(struct dentry *dentry, struct kstatfs *buf)
165 { 165 {
166 int ret = -ENOMEM; 166 int ret = -ENOMEM;
167 struct orangefs_kernel_op_s *new_op = 167 struct orangefs_kernel_op_s *new_op = NULL;
168 int flags = 0; 168 int flags = 0;
169 struct super_block *sb = NULL; 169 struct super_block *sb = NULL;
170 170
171 sb = dentry->d_sb; 171 sb = dentry->d_sb;
172 172
173 gossip_debug(GOSSIP_SUPER_DEBUG, 173 gossip_debug(GOSSIP_SUPER_DEBUG,
174 "%s: called on sb %p ( 174 "%s: called on sb %p (fs_id is %d)\n",
175 __func__, 175 __func__,
176 sb, 176 sb,
177 (int)(ORANGEFS_SB(sb)- 177 (int)(ORANGEFS_SB(sb)->fs_id));
178 178
179 new_op = op_alloc(ORANGEFS_VFS_OP_STAT 179 new_op = op_alloc(ORANGEFS_VFS_OP_STATFS);
180 if (!new_op) 180 if (!new_op)
181 return ret; 181 return ret;
182 new_op->upcall.req.statfs.fs_id = ORAN 182 new_op->upcall.req.statfs.fs_id = ORANGEFS_SB(sb)->fs_id;
183 183
184 if (ORANGEFS_SB(sb)->flags & ORANGEFS_ 184 if (ORANGEFS_SB(sb)->flags & ORANGEFS_OPT_INTR)
185 flags = ORANGEFS_OP_INTERRUPTI 185 flags = ORANGEFS_OP_INTERRUPTIBLE;
186 186
187 ret = service_operation(new_op, "orang 187 ret = service_operation(new_op, "orangefs_statfs", flags);
188 188
189 if (new_op->downcall.status < 0) 189 if (new_op->downcall.status < 0)
190 goto out_op_release; 190 goto out_op_release;
191 191
192 gossip_debug(GOSSIP_SUPER_DEBUG, 192 gossip_debug(GOSSIP_SUPER_DEBUG,
193 "%s: got %ld blocks avail 193 "%s: got %ld blocks available | "
194 "%ld blocks total | %ld b 194 "%ld blocks total | %ld block size | "
195 "%ld files total | %ld fi 195 "%ld files total | %ld files avail\n",
196 __func__, 196 __func__,
197 (long)new_op->downcall.re 197 (long)new_op->downcall.resp.statfs.blocks_avail,
198 (long)new_op->downcall.re 198 (long)new_op->downcall.resp.statfs.blocks_total,
199 (long)new_op->downcall.re 199 (long)new_op->downcall.resp.statfs.block_size,
200 (long)new_op->downcall.re 200 (long)new_op->downcall.resp.statfs.files_total,
201 (long)new_op->downcall.re 201 (long)new_op->downcall.resp.statfs.files_avail);
202 202
203 buf->f_type = sb->s_magic; 203 buf->f_type = sb->s_magic;
204 buf->f_fsid.val[0] = ORANGEFS_SB(sb)-> !! 204 memcpy(&buf->f_fsid, &ORANGEFS_SB(sb)->fs_id, sizeof(buf->f_fsid));
205 buf->f_fsid.val[1] = ORANGEFS_SB(sb)-> <<
206 buf->f_bsize = new_op->downcall.resp.s 205 buf->f_bsize = new_op->downcall.resp.statfs.block_size;
207 buf->f_namelen = ORANGEFS_NAME_MAX; 206 buf->f_namelen = ORANGEFS_NAME_MAX;
208 207
209 buf->f_blocks = (sector_t) new_op->dow 208 buf->f_blocks = (sector_t) new_op->downcall.resp.statfs.blocks_total;
210 buf->f_bfree = (sector_t) new_op->down 209 buf->f_bfree = (sector_t) new_op->downcall.resp.statfs.blocks_avail;
211 buf->f_bavail = (sector_t) new_op->dow 210 buf->f_bavail = (sector_t) new_op->downcall.resp.statfs.blocks_avail;
212 buf->f_files = (sector_t) new_op->down 211 buf->f_files = (sector_t) new_op->downcall.resp.statfs.files_total;
213 buf->f_ffree = (sector_t) new_op->down 212 buf->f_ffree = (sector_t) new_op->downcall.resp.statfs.files_avail;
214 buf->f_frsize = 0; 213 buf->f_frsize = 0;
215 214
216 out_op_release: 215 out_op_release:
217 op_release(new_op); 216 op_release(new_op);
218 gossip_debug(GOSSIP_SUPER_DEBUG, "%s: 217 gossip_debug(GOSSIP_SUPER_DEBUG, "%s: returning %d\n", __func__, ret);
219 return ret; 218 return ret;
220 } 219 }
221 220
222 /* 221 /*
223 * Remount as initiated by VFS layer. We just 222 * Remount as initiated by VFS layer. We just need to reparse the mount
224 * options, no need to signal pvfs2-client-cor 223 * options, no need to signal pvfs2-client-core about it.
225 */ 224 */
226 static int orangefs_remount_fs(struct super_bl 225 static int orangefs_remount_fs(struct super_block *sb, int *flags, char *data)
227 { 226 {
228 gossip_debug(GOSSIP_SUPER_DEBUG, "oran 227 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount_fs: called\n");
229 return parse_mount_options(sb, data, 1 228 return parse_mount_options(sb, data, 1);
230 } 229 }
231 230
232 /* 231 /*
233 * Remount as initiated by pvfs2-client-core o 232 * Remount as initiated by pvfs2-client-core on restart. This is used to
234 * repopulate mount information left from prev 233 * repopulate mount information left from previous pvfs2-client-core.
235 * 234 *
236 * the idea here is that given a valid superbl 235 * the idea here is that given a valid superblock, we're
237 * re-initializing the user space client with 236 * re-initializing the user space client with the initial mount
238 * information specified when the super block 237 * information specified when the super block was first initialized.
239 * this is very different than the first initi 238 * this is very different than the first initialization/creation of a
240 * superblock. we use the special service_pri 239 * superblock. we use the special service_priority_operation to make
241 * sure that the mount gets ahead of any other 240 * sure that the mount gets ahead of any other pending operation that
242 * is waiting for servicing. this means that 241 * is waiting for servicing. this means that the pvfs2-client won't
243 * fail to start several times for all other p 242 * fail to start several times for all other pending operations before
244 * the client regains all of the mount informa 243 * the client regains all of the mount information from us.
245 * NOTE: this function assumes that the reques 244 * NOTE: this function assumes that the request_mutex is already acquired!
246 */ 245 */
247 int orangefs_remount(struct orangefs_sb_info_s 246 int orangefs_remount(struct orangefs_sb_info_s *orangefs_sb)
248 { 247 {
249 struct orangefs_kernel_op_s *new_op; 248 struct orangefs_kernel_op_s *new_op;
250 int ret = -EINVAL; 249 int ret = -EINVAL;
251 250
252 gossip_debug(GOSSIP_SUPER_DEBUG, "oran 251 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount: called\n");
253 252
254 new_op = op_alloc(ORANGEFS_VFS_OP_FS_M 253 new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT);
255 if (!new_op) 254 if (!new_op)
256 return -ENOMEM; 255 return -ENOMEM;
257 strscpy(new_op->upcall.req.fs_mount.or !! 256 strncpy(new_op->upcall.req.fs_mount.orangefs_config_server,
258 orangefs_sb->devname); !! 257 orangefs_sb->devname,
>> 258 ORANGEFS_MAX_SERVER_ADDR_LEN);
259 259
260 gossip_debug(GOSSIP_SUPER_DEBUG, 260 gossip_debug(GOSSIP_SUPER_DEBUG,
261 "Attempting ORANGEFS Remo 261 "Attempting ORANGEFS Remount via host %s\n",
262 new_op->upcall.req.fs_mou 262 new_op->upcall.req.fs_mount.orangefs_config_server);
263 263
264 /* 264 /*
265 * we assume that the calling function 265 * we assume that the calling function has already acquired the
266 * request_mutex to prevent other oper 266 * request_mutex to prevent other operations from bypassing
267 * this one 267 * this one
268 */ 268 */
269 ret = service_operation(new_op, "orang 269 ret = service_operation(new_op, "orangefs_remount",
270 ORANGEFS_OP_PRIORITY | ORANGEF 270 ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX);
271 gossip_debug(GOSSIP_SUPER_DEBUG, 271 gossip_debug(GOSSIP_SUPER_DEBUG,
272 "orangefs_remount: mount 272 "orangefs_remount: mount got return value of %d\n",
273 ret); 273 ret);
274 if (ret == 0) { 274 if (ret == 0) {
275 /* 275 /*
276 * store the id assigned to th 276 * store the id assigned to this sb -- it's just a
277 * short-lived mapping that th 277 * short-lived mapping that the system interface uses
278 * to map this superblock to a 278 * to map this superblock to a particular mount entry
279 */ 279 */
280 orangefs_sb->id = new_op->down 280 orangefs_sb->id = new_op->downcall.resp.fs_mount.id;
281 orangefs_sb->mount_pending = 0 281 orangefs_sb->mount_pending = 0;
282 } 282 }
283 283
284 op_release(new_op); 284 op_release(new_op);
285 285
286 if (orangefs_userspace_version >= 2090 286 if (orangefs_userspace_version >= 20906) {
287 new_op = op_alloc(ORANGEFS_VFS 287 new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES);
288 if (!new_op) 288 if (!new_op)
289 return -ENOMEM; 289 return -ENOMEM;
290 new_op->upcall.req.features.fe 290 new_op->upcall.req.features.features = 0;
291 ret = service_operation(new_op 291 ret = service_operation(new_op, "orangefs_features",
292 ORANGEFS_OP_PRIORITY | ORA 292 ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX);
293 if (!ret) 293 if (!ret)
294 orangefs_features = 294 orangefs_features =
295 new_op->downcall.r 295 new_op->downcall.resp.features.features;
296 else 296 else
297 orangefs_features = 0; 297 orangefs_features = 0;
298 op_release(new_op); 298 op_release(new_op);
299 } else { 299 } else {
300 orangefs_features = 0; 300 orangefs_features = 0;
301 } 301 }
302 302
303 return ret; 303 return ret;
304 } 304 }
305 305
306 int fsid_key_table_initialize(void) 306 int fsid_key_table_initialize(void)
307 { 307 {
308 return 0; 308 return 0;
309 } 309 }
310 310
311 void fsid_key_table_finalize(void) 311 void fsid_key_table_finalize(void)
312 { 312 {
313 } 313 }
314 314
315 static const struct super_operations orangefs_ 315 static const struct super_operations orangefs_s_ops = {
316 .alloc_inode = orangefs_alloc_inode, 316 .alloc_inode = orangefs_alloc_inode,
317 .free_inode = orangefs_free_inode, 317 .free_inode = orangefs_free_inode,
318 .destroy_inode = orangefs_destroy_inod 318 .destroy_inode = orangefs_destroy_inode,
319 .write_inode = orangefs_write_inode, 319 .write_inode = orangefs_write_inode,
320 .drop_inode = generic_delete_inode, 320 .drop_inode = generic_delete_inode,
321 .statfs = orangefs_statfs, 321 .statfs = orangefs_statfs,
322 .remount_fs = orangefs_remount_fs, 322 .remount_fs = orangefs_remount_fs,
323 .show_options = orangefs_show_options, 323 .show_options = orangefs_show_options,
324 }; 324 };
325 325
326 static struct dentry *orangefs_fh_to_dentry(st 326 static struct dentry *orangefs_fh_to_dentry(struct super_block *sb,
327 struct fid * 327 struct fid *fid,
328 int fh_len, 328 int fh_len,
329 int fh_type) 329 int fh_type)
330 { 330 {
331 struct orangefs_object_kref refn; 331 struct orangefs_object_kref refn;
332 332
333 if (fh_len < 5 || fh_type > 2) 333 if (fh_len < 5 || fh_type > 2)
334 return NULL; 334 return NULL;
335 335
336 ORANGEFS_khandle_from(&(refn.khandle), 336 ORANGEFS_khandle_from(&(refn.khandle), fid->raw, 16);
337 refn.fs_id = (u32) fid->raw[4]; 337 refn.fs_id = (u32) fid->raw[4];
338 gossip_debug(GOSSIP_SUPER_DEBUG, 338 gossip_debug(GOSSIP_SUPER_DEBUG,
339 "fh_to_dentry: handle %pU 339 "fh_to_dentry: handle %pU, fs_id %d\n",
340 &refn.khandle, 340 &refn.khandle,
341 refn.fs_id); 341 refn.fs_id);
342 342
343 return d_obtain_alias(orangefs_iget(sb 343 return d_obtain_alias(orangefs_iget(sb, &refn));
344 } 344 }
345 345
346 static int orangefs_encode_fh(struct inode *in 346 static int orangefs_encode_fh(struct inode *inode,
347 __u32 *fh, 347 __u32 *fh,
348 int *max_len, 348 int *max_len,
349 struct inode *parent) 349 struct inode *parent)
350 { 350 {
351 int len = parent ? 10 : 5; 351 int len = parent ? 10 : 5;
352 int type = 1; 352 int type = 1;
353 struct orangefs_object_kref refn; 353 struct orangefs_object_kref refn;
354 354
355 if (*max_len < len) { 355 if (*max_len < len) {
356 gossip_err("fh buffer is too s 356 gossip_err("fh buffer is too small for encoding\n");
357 *max_len = len; 357 *max_len = len;
358 type = 255; 358 type = 255;
359 goto out; 359 goto out;
360 } 360 }
361 361
362 refn = ORANGEFS_I(inode)->refn; 362 refn = ORANGEFS_I(inode)->refn;
363 ORANGEFS_khandle_to(&refn.khandle, fh, 363 ORANGEFS_khandle_to(&refn.khandle, fh, 16);
364 fh[4] = refn.fs_id; 364 fh[4] = refn.fs_id;
365 365
366 gossip_debug(GOSSIP_SUPER_DEBUG, 366 gossip_debug(GOSSIP_SUPER_DEBUG,
367 "Encoding fh: handle %pU, 367 "Encoding fh: handle %pU, fsid %u\n",
368 &refn.khandle, 368 &refn.khandle,
369 refn.fs_id); 369 refn.fs_id);
370 370
371 371
372 if (parent) { 372 if (parent) {
373 refn = ORANGEFS_I(parent)->ref 373 refn = ORANGEFS_I(parent)->refn;
374 ORANGEFS_khandle_to(&refn.khan 374 ORANGEFS_khandle_to(&refn.khandle, (char *) fh + 20, 16);
375 fh[9] = refn.fs_id; 375 fh[9] = refn.fs_id;
376 376
377 type = 2; 377 type = 2;
378 gossip_debug(GOSSIP_SUPER_DEBU 378 gossip_debug(GOSSIP_SUPER_DEBUG,
379 "Encoding parent: 379 "Encoding parent: handle %pU, fsid %u\n",
380 &refn.khandle, 380 &refn.khandle,
381 refn.fs_id); 381 refn.fs_id);
382 } 382 }
383 *max_len = len; 383 *max_len = len;
384 384
385 out: 385 out:
386 return type; 386 return type;
387 } 387 }
388 388
389 static const struct export_operations orangefs 389 static const struct export_operations orangefs_export_ops = {
390 .encode_fh = orangefs_encode_fh, 390 .encode_fh = orangefs_encode_fh,
391 .fh_to_dentry = orangefs_fh_to_dentry, 391 .fh_to_dentry = orangefs_fh_to_dentry,
392 }; 392 };
393 393
394 static int orangefs_unmount(int id, __s32 fs_i 394 static int orangefs_unmount(int id, __s32 fs_id, const char *devname)
395 { 395 {
396 struct orangefs_kernel_op_s *op; 396 struct orangefs_kernel_op_s *op;
397 int r; 397 int r;
398 op = op_alloc(ORANGEFS_VFS_OP_FS_UMOUN 398 op = op_alloc(ORANGEFS_VFS_OP_FS_UMOUNT);
399 if (!op) 399 if (!op)
400 return -ENOMEM; 400 return -ENOMEM;
401 op->upcall.req.fs_umount.id = id; 401 op->upcall.req.fs_umount.id = id;
402 op->upcall.req.fs_umount.fs_id = fs_id 402 op->upcall.req.fs_umount.fs_id = fs_id;
403 strscpy(op->upcall.req.fs_umount.orang !! 403 strncpy(op->upcall.req.fs_umount.orangefs_config_server,
>> 404 devname, ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
404 r = service_operation(op, "orangefs_fs 405 r = service_operation(op, "orangefs_fs_umount", 0);
405 /* Not much to do about an error here. 406 /* Not much to do about an error here. */
406 if (r) 407 if (r)
407 gossip_err("orangefs_unmount: 408 gossip_err("orangefs_unmount: service_operation %d\n", r);
408 op_release(op); 409 op_release(op);
409 return r; 410 return r;
410 } 411 }
411 412
412 static int orangefs_fill_sb(struct super_block 413 static int orangefs_fill_sb(struct super_block *sb,
413 struct orangefs_fs_mount_respo 414 struct orangefs_fs_mount_response *fs_mount,
414 void *data, int silent) 415 void *data, int silent)
415 { 416 {
416 int ret; 417 int ret;
417 struct inode *root; 418 struct inode *root;
418 struct dentry *root_dentry; 419 struct dentry *root_dentry;
419 struct orangefs_object_kref root_objec 420 struct orangefs_object_kref root_object;
420 421
421 ORANGEFS_SB(sb)->sb = sb; 422 ORANGEFS_SB(sb)->sb = sb;
422 423
423 ORANGEFS_SB(sb)->root_khandle = fs_mou 424 ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle;
424 ORANGEFS_SB(sb)->fs_id = fs_mount->fs_ 425 ORANGEFS_SB(sb)->fs_id = fs_mount->fs_id;
425 ORANGEFS_SB(sb)->id = fs_mount->id; 426 ORANGEFS_SB(sb)->id = fs_mount->id;
426 427
427 if (data) { 428 if (data) {
428 ret = parse_mount_options(sb, 429 ret = parse_mount_options(sb, data, silent);
429 if (ret) 430 if (ret)
430 return ret; 431 return ret;
431 } 432 }
432 433
433 /* Hang the xattr handlers off the sup 434 /* Hang the xattr handlers off the superblock */
434 sb->s_xattr = orangefs_xattr_handlers; 435 sb->s_xattr = orangefs_xattr_handlers;
435 sb->s_magic = ORANGEFS_SUPER_MAGIC; 436 sb->s_magic = ORANGEFS_SUPER_MAGIC;
436 sb->s_op = &orangefs_s_ops; 437 sb->s_op = &orangefs_s_ops;
437 sb->s_d_op = &orangefs_dentry_operatio 438 sb->s_d_op = &orangefs_dentry_operations;
438 439
439 sb->s_blocksize = PAGE_SIZE; 440 sb->s_blocksize = PAGE_SIZE;
440 sb->s_blocksize_bits = PAGE_SHIFT; 441 sb->s_blocksize_bits = PAGE_SHIFT;
441 sb->s_maxbytes = MAX_LFS_FILESIZE; 442 sb->s_maxbytes = MAX_LFS_FILESIZE;
442 443
443 ret = super_setup_bdi(sb); 444 ret = super_setup_bdi(sb);
444 if (ret) 445 if (ret)
445 return ret; 446 return ret;
446 447
447 root_object.khandle = ORANGEFS_SB(sb)- 448 root_object.khandle = ORANGEFS_SB(sb)->root_khandle;
448 root_object.fs_id = ORANGEFS_SB(sb)->f 449 root_object.fs_id = ORANGEFS_SB(sb)->fs_id;
449 gossip_debug(GOSSIP_SUPER_DEBUG, 450 gossip_debug(GOSSIP_SUPER_DEBUG,
450 "get inode %pU, fsid %d\n 451 "get inode %pU, fsid %d\n",
451 &root_object.khandle, 452 &root_object.khandle,
452 root_object.fs_id); 453 root_object.fs_id);
453 454
454 root = orangefs_iget(sb, &root_object) 455 root = orangefs_iget(sb, &root_object);
455 if (IS_ERR(root)) 456 if (IS_ERR(root))
456 return PTR_ERR(root); 457 return PTR_ERR(root);
457 458
458 gossip_debug(GOSSIP_SUPER_DEBUG, 459 gossip_debug(GOSSIP_SUPER_DEBUG,
459 "Allocated root inode [%p 460 "Allocated root inode [%p] with mode %x\n",
460 root, 461 root,
461 root->i_mode); 462 root->i_mode);
462 463
463 /* allocates and places root dentry in 464 /* allocates and places root dentry in dcache */
464 root_dentry = d_make_root(root); 465 root_dentry = d_make_root(root);
465 if (!root_dentry) 466 if (!root_dentry)
466 return -ENOMEM; 467 return -ENOMEM;
467 468
468 sb->s_export_op = &orangefs_export_ops 469 sb->s_export_op = &orangefs_export_ops;
469 sb->s_root = root_dentry; 470 sb->s_root = root_dentry;
470 return 0; 471 return 0;
471 } 472 }
472 473
473 struct dentry *orangefs_mount(struct file_syst 474 struct dentry *orangefs_mount(struct file_system_type *fst,
474 int flags, 475 int flags,
475 const char *devname 476 const char *devname,
476 void *data) 477 void *data)
477 { 478 {
478 int ret; 479 int ret;
479 struct super_block *sb = ERR_PTR(-EINV 480 struct super_block *sb = ERR_PTR(-EINVAL);
480 struct orangefs_kernel_op_s *new_op; 481 struct orangefs_kernel_op_s *new_op;
481 struct dentry *d = ERR_PTR(-EINVAL); 482 struct dentry *d = ERR_PTR(-EINVAL);
482 483
483 gossip_debug(GOSSIP_SUPER_DEBUG, 484 gossip_debug(GOSSIP_SUPER_DEBUG,
484 "orangefs_mount: called w 485 "orangefs_mount: called with devname %s\n",
485 devname); 486 devname);
486 487
487 if (!devname) { 488 if (!devname) {
488 gossip_err("ERROR: device name 489 gossip_err("ERROR: device name not specified.\n");
489 return ERR_PTR(-EINVAL); 490 return ERR_PTR(-EINVAL);
490 } 491 }
491 492
492 new_op = op_alloc(ORANGEFS_VFS_OP_FS_M 493 new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT);
493 if (!new_op) 494 if (!new_op)
494 return ERR_PTR(-ENOMEM); 495 return ERR_PTR(-ENOMEM);
495 496
496 strscpy(new_op->upcall.req.fs_mount.or !! 497 strncpy(new_op->upcall.req.fs_mount.orangefs_config_server,
>> 498 devname,
>> 499 ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
497 500
498 gossip_debug(GOSSIP_SUPER_DEBUG, 501 gossip_debug(GOSSIP_SUPER_DEBUG,
499 "Attempting ORANGEFS Moun 502 "Attempting ORANGEFS Mount via host %s\n",
500 new_op->upcall.req.fs_mou 503 new_op->upcall.req.fs_mount.orangefs_config_server);
501 504
502 ret = service_operation(new_op, "orang 505 ret = service_operation(new_op, "orangefs_mount", 0);
503 gossip_debug(GOSSIP_SUPER_DEBUG, 506 gossip_debug(GOSSIP_SUPER_DEBUG,
504 "orangefs_mount: mount go 507 "orangefs_mount: mount got return value of %d\n", ret);
505 if (ret) 508 if (ret)
506 goto free_op; 509 goto free_op;
507 510
508 if (new_op->downcall.resp.fs_mount.fs_ 511 if (new_op->downcall.resp.fs_mount.fs_id == ORANGEFS_FS_ID_NULL) {
509 gossip_err("ERROR: Retrieved n 512 gossip_err("ERROR: Retrieved null fs_id\n");
510 ret = -EINVAL; 513 ret = -EINVAL;
511 goto free_op; 514 goto free_op;
512 } 515 }
513 516
514 sb = sget(fst, NULL, set_anon_super, f 517 sb = sget(fst, NULL, set_anon_super, flags, NULL);
515 518
516 if (IS_ERR(sb)) { 519 if (IS_ERR(sb)) {
517 d = ERR_CAST(sb); 520 d = ERR_CAST(sb);
518 orangefs_unmount(new_op->downc 521 orangefs_unmount(new_op->downcall.resp.fs_mount.id,
519 new_op->downcall.resp.fs_m 522 new_op->downcall.resp.fs_mount.fs_id, devname);
520 goto free_op; 523 goto free_op;
521 } 524 }
522 525
523 /* alloc and init our private orangefs 526 /* alloc and init our private orangefs sb info */
524 sb->s_fs_info = kzalloc(sizeof(struct 527 sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
525 if (!ORANGEFS_SB(sb)) { 528 if (!ORANGEFS_SB(sb)) {
526 d = ERR_PTR(-ENOMEM); 529 d = ERR_PTR(-ENOMEM);
527 goto free_op; !! 530 goto free_sb_and_op;
528 } 531 }
529 532
530 ret = orangefs_fill_sb(sb, 533 ret = orangefs_fill_sb(sb,
531 &new_op->downcall.resp.fs_mount, 534 &new_op->downcall.resp.fs_mount, data,
532 flags & SB_SILENT ? 1 : 0); 535 flags & SB_SILENT ? 1 : 0);
533 536
534 if (ret) { 537 if (ret) {
535 d = ERR_PTR(ret); 538 d = ERR_PTR(ret);
536 goto free_sb_and_op; 539 goto free_sb_and_op;
537 } 540 }
538 541
539 /* 542 /*
540 * on successful mount, store the devn 543 * on successful mount, store the devname and data
541 * used 544 * used
542 */ 545 */
543 strscpy(ORANGEFS_SB(sb)->devname, devn !! 546 strncpy(ORANGEFS_SB(sb)->devname,
544 !! 547 devname,
>> 548 ORANGEFS_MAX_SERVER_ADDR_LEN - 1);
545 549
546 /* mount_pending must be cleared */ 550 /* mount_pending must be cleared */
547 ORANGEFS_SB(sb)->mount_pending = 0; 551 ORANGEFS_SB(sb)->mount_pending = 0;
548 552
549 /* 553 /*
550 * finally, add this sb to our list of 554 * finally, add this sb to our list of known orangefs
551 * sb's 555 * sb's
552 */ 556 */
553 gossip_debug(GOSSIP_SUPER_DEBUG, 557 gossip_debug(GOSSIP_SUPER_DEBUG,
554 "Adding SB %p to orangefs 558 "Adding SB %p to orangefs superblocks\n",
555 ORANGEFS_SB(sb)); 559 ORANGEFS_SB(sb));
556 spin_lock(&orangefs_superblocks_lock); 560 spin_lock(&orangefs_superblocks_lock);
557 list_add_tail(&ORANGEFS_SB(sb)->list, 561 list_add_tail(&ORANGEFS_SB(sb)->list, &orangefs_superblocks);
558 spin_unlock(&orangefs_superblocks_lock 562 spin_unlock(&orangefs_superblocks_lock);
559 op_release(new_op); 563 op_release(new_op);
560 564
561 /* Must be removed from the list now. 565 /* Must be removed from the list now. */
562 ORANGEFS_SB(sb)->no_list = 0; 566 ORANGEFS_SB(sb)->no_list = 0;
563 567
564 if (orangefs_userspace_version >= 2090 568 if (orangefs_userspace_version >= 20906) {
565 new_op = op_alloc(ORANGEFS_VFS 569 new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES);
566 if (!new_op) 570 if (!new_op)
567 return ERR_PTR(-ENOMEM 571 return ERR_PTR(-ENOMEM);
568 new_op->upcall.req.features.fe 572 new_op->upcall.req.features.features = 0;
569 ret = service_operation(new_op 573 ret = service_operation(new_op, "orangefs_features", 0);
570 orangefs_features = new_op->do 574 orangefs_features = new_op->downcall.resp.features.features;
571 op_release(new_op); 575 op_release(new_op);
572 } else { 576 } else {
573 orangefs_features = 0; 577 orangefs_features = 0;
574 } 578 }
575 579
576 return dget(sb->s_root); 580 return dget(sb->s_root);
577 581
578 free_sb_and_op: 582 free_sb_and_op:
579 /* Will call orangefs_kill_sb with sb 583 /* Will call orangefs_kill_sb with sb not in list. */
580 ORANGEFS_SB(sb)->no_list = 1; 584 ORANGEFS_SB(sb)->no_list = 1;
581 /* ORANGEFS_VFS_OP_FS_UMOUNT is done b 585 /* ORANGEFS_VFS_OP_FS_UMOUNT is done by orangefs_kill_sb. */
582 deactivate_locked_super(sb); 586 deactivate_locked_super(sb);
583 free_op: 587 free_op:
584 gossip_err("orangefs_mount: mount requ 588 gossip_err("orangefs_mount: mount request failed with %d\n", ret);
585 if (ret == -EINVAL) { 589 if (ret == -EINVAL) {
586 gossip_err("Ensure that all or 590 gossip_err("Ensure that all orangefs-servers have the same FS configuration files\n");
587 gossip_err("Look at pvfs2-clie 591 gossip_err("Look at pvfs2-client-core log file (typically /tmp/pvfs2-client.log) for more details\n");
588 } 592 }
589 593
590 op_release(new_op); 594 op_release(new_op);
591 595
592 return d; 596 return d;
593 } 597 }
594 598
595 void orangefs_kill_sb(struct super_block *sb) 599 void orangefs_kill_sb(struct super_block *sb)
596 { 600 {
597 int r; 601 int r;
598 gossip_debug(GOSSIP_SUPER_DEBUG, "oran 602 gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_kill_sb: called\n");
599 603
600 /* provided sb cleanup */ 604 /* provided sb cleanup */
601 kill_anon_super(sb); 605 kill_anon_super(sb);
602 606
603 if (!ORANGEFS_SB(sb)) { 607 if (!ORANGEFS_SB(sb)) {
604 mutex_lock(&orangefs_request_m 608 mutex_lock(&orangefs_request_mutex);
605 mutex_unlock(&orangefs_request 609 mutex_unlock(&orangefs_request_mutex);
606 return; 610 return;
607 } 611 }
608 /* 612 /*
609 * issue the unmount to userspace to t 613 * issue the unmount to userspace to tell it to remove the
610 * dynamic mount info it has for this 614 * dynamic mount info it has for this superblock
611 */ 615 */
612 r = orangefs_unmount(ORANGEFS_SB(sb)-> 616 r = orangefs_unmount(ORANGEFS_SB(sb)->id, ORANGEFS_SB(sb)->fs_id,
613 ORANGEFS_SB(sb)->devname); 617 ORANGEFS_SB(sb)->devname);
614 if (!r) 618 if (!r)
615 ORANGEFS_SB(sb)->mount_pending 619 ORANGEFS_SB(sb)->mount_pending = 1;
616 620
617 if (!ORANGEFS_SB(sb)->no_list) { 621 if (!ORANGEFS_SB(sb)->no_list) {
618 /* remove the sb from our list 622 /* remove the sb from our list of orangefs specific sb's */
619 spin_lock(&orangefs_superblock 623 spin_lock(&orangefs_superblocks_lock);
620 /* not list_del_init */ 624 /* not list_del_init */
621 __list_del_entry(&ORANGEFS_SB( 625 __list_del_entry(&ORANGEFS_SB(sb)->list);
622 ORANGEFS_SB(sb)->list.prev = N 626 ORANGEFS_SB(sb)->list.prev = NULL;
623 spin_unlock(&orangefs_superblo 627 spin_unlock(&orangefs_superblocks_lock);
624 } 628 }
625 629
626 /* 630 /*
627 * make sure that ORANGEFS_DEV_REMOUNT 631 * make sure that ORANGEFS_DEV_REMOUNT_ALL loop that might've seen us
628 * gets completed before we free the d 632 * gets completed before we free the dang thing.
629 */ 633 */
630 mutex_lock(&orangefs_request_mutex); 634 mutex_lock(&orangefs_request_mutex);
631 mutex_unlock(&orangefs_request_mutex); 635 mutex_unlock(&orangefs_request_mutex);
632 636
633 /* free the orangefs superblock privat 637 /* free the orangefs superblock private data */
634 kfree(ORANGEFS_SB(sb)); 638 kfree(ORANGEFS_SB(sb));
635 } 639 }
636 640
637 int orangefs_inode_cache_initialize(void) 641 int orangefs_inode_cache_initialize(void)
638 { 642 {
639 orangefs_inode_cache = kmem_cache_crea 643 orangefs_inode_cache = kmem_cache_create_usercopy(
640 "orang 644 "orangefs_inode_cache",
641 sizeof 645 sizeof(struct orangefs_inode_s),
642 0, 646 0,
643 0, !! 647 ORANGEFS_CACHE_CREATE_FLAGS,
644 offset 648 offsetof(struct orangefs_inode_s,
645 649 link_target),
646 sizeof 650 sizeof_field(struct orangefs_inode_s,
647 651 link_target),
648 orange 652 orangefs_inode_cache_ctor);
649 653
650 if (!orangefs_inode_cache) { 654 if (!orangefs_inode_cache) {
651 gossip_err("Cannot create oran 655 gossip_err("Cannot create orangefs_inode_cache\n");
652 return -ENOMEM; 656 return -ENOMEM;
653 } 657 }
654 return 0; 658 return 0;
655 } 659 }
656 660
657 int orangefs_inode_cache_finalize(void) 661 int orangefs_inode_cache_finalize(void)
658 { 662 {
659 kmem_cache_destroy(orangefs_inode_cach 663 kmem_cache_destroy(orangefs_inode_cache);
660 return 0; 664 return 0;
661 } 665 }
662 666
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