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Commit | Line | Data |
---|---|---|
1182fca3 MM |
1 | /* |
2 | * (C) 2001 Clemson University and The University of Chicago | |
3 | * | |
4 | * See COPYING in top-level directory. | |
5 | */ | |
6 | ||
7 | #include "protocol.h" | |
575e9461 MM |
8 | #include "orangefs-kernel.h" |
9 | #include "orangefs-bufmap.h" | |
1182fca3 MM |
10 | |
11 | #include <linux/parser.h> | |
12 | ||
8bb8aefd YL |
13 | /* a cache for orangefs-inode objects (i.e. orangefs inode private data) */ |
14 | static struct kmem_cache *orangefs_inode_cache; | |
1182fca3 | 15 | |
8bb8aefd YL |
16 | /* list for storing orangefs specific superblocks in use */ |
17 | LIST_HEAD(orangefs_superblocks); | |
1182fca3 | 18 | |
8bb8aefd | 19 | DEFINE_SPINLOCK(orangefs_superblocks_lock); |
1182fca3 MM |
20 | |
21 | enum { | |
22 | Opt_intr, | |
23 | Opt_acl, | |
24 | Opt_local_lock, | |
25 | ||
26 | Opt_err | |
27 | }; | |
28 | ||
29 | static const match_table_t tokens = { | |
30 | { Opt_acl, "acl" }, | |
31 | { Opt_intr, "intr" }, | |
32 | { Opt_local_lock, "local_lock" }, | |
33 | { Opt_err, NULL } | |
34 | }; | |
35 | ||
482664dd | 36 | uint64_t orangefs_features; |
1182fca3 MM |
37 | |
38 | static int parse_mount_options(struct super_block *sb, char *options, | |
39 | int silent) | |
40 | { | |
8bb8aefd | 41 | struct orangefs_sb_info_s *orangefs_sb = ORANGEFS_SB(sb); |
1182fca3 MM |
42 | substring_t args[MAX_OPT_ARGS]; |
43 | char *p; | |
44 | ||
45 | /* | |
46 | * Force any potential flags that might be set from the mount | |
47 | * to zero, ie, initialize to unset. | |
48 | */ | |
49 | sb->s_flags &= ~MS_POSIXACL; | |
8bb8aefd YL |
50 | orangefs_sb->flags &= ~ORANGEFS_OPT_INTR; |
51 | orangefs_sb->flags &= ~ORANGEFS_OPT_LOCAL_LOCK; | |
1182fca3 MM |
52 | |
53 | while ((p = strsep(&options, ",")) != NULL) { | |
54 | int token; | |
55 | ||
56 | if (!*p) | |
57 | continue; | |
58 | ||
59 | token = match_token(p, tokens, args); | |
60 | switch (token) { | |
61 | case Opt_acl: | |
62 | sb->s_flags |= MS_POSIXACL; | |
63 | break; | |
64 | case Opt_intr: | |
8bb8aefd | 65 | orangefs_sb->flags |= ORANGEFS_OPT_INTR; |
1182fca3 MM |
66 | break; |
67 | case Opt_local_lock: | |
8bb8aefd | 68 | orangefs_sb->flags |= ORANGEFS_OPT_LOCAL_LOCK; |
1182fca3 MM |
69 | break; |
70 | default: | |
71 | goto fail; | |
72 | } | |
73 | } | |
74 | ||
75 | return 0; | |
76 | fail: | |
77 | if (!silent) | |
78 | gossip_err("Error: mount option [%s] is not supported.\n", p); | |
79 | return -EINVAL; | |
80 | } | |
81 | ||
8bb8aefd | 82 | static void orangefs_inode_cache_ctor(void *req) |
1182fca3 | 83 | { |
8bb8aefd | 84 | struct orangefs_inode_s *orangefs_inode = req; |
1182fca3 | 85 | |
8bb8aefd YL |
86 | inode_init_once(&orangefs_inode->vfs_inode); |
87 | init_rwsem(&orangefs_inode->xattr_sem); | |
1182fca3 | 88 | |
8bb8aefd | 89 | orangefs_inode->vfs_inode.i_version = 1; |
1182fca3 MM |
90 | } |
91 | ||
8bb8aefd | 92 | static struct inode *orangefs_alloc_inode(struct super_block *sb) |
1182fca3 | 93 | { |
8bb8aefd | 94 | struct orangefs_inode_s *orangefs_inode; |
1182fca3 | 95 | |
2d4cae0d | 96 | orangefs_inode = kmem_cache_alloc(orangefs_inode_cache, GFP_KERNEL); |
8bb8aefd YL |
97 | if (orangefs_inode == NULL) { |
98 | gossip_err("Failed to allocate orangefs_inode\n"); | |
1182fca3 MM |
99 | return NULL; |
100 | } | |
101 | ||
102 | /* | |
103 | * We want to clear everything except for rw_semaphore and the | |
104 | * vfs_inode. | |
105 | */ | |
8bb8aefd YL |
106 | memset(&orangefs_inode->refn.khandle, 0, 16); |
107 | orangefs_inode->refn.fs_id = ORANGEFS_FS_ID_NULL; | |
108 | orangefs_inode->last_failed_block_index_read = 0; | |
109 | memset(orangefs_inode->link_target, 0, sizeof(orangefs_inode->link_target)); | |
110 | orangefs_inode->pinode_flags = 0; | |
1182fca3 MM |
111 | |
112 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
8bb8aefd YL |
113 | "orangefs_alloc_inode: allocated %p\n", |
114 | &orangefs_inode->vfs_inode); | |
115 | return &orangefs_inode->vfs_inode; | |
1182fca3 MM |
116 | } |
117 | ||
8bb8aefd | 118 | static void orangefs_destroy_inode(struct inode *inode) |
1182fca3 | 119 | { |
8bb8aefd | 120 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
1182fca3 MM |
121 | |
122 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
123 | "%s: deallocated %p destroying inode %pU\n", | |
8bb8aefd | 124 | __func__, orangefs_inode, get_khandle_from_ino(inode)); |
1182fca3 | 125 | |
8bb8aefd | 126 | kmem_cache_free(orangefs_inode_cache, orangefs_inode); |
1182fca3 MM |
127 | } |
128 | ||
129 | /* | |
130 | * NOTE: information filled in here is typically reflected in the | |
131 | * output of the system command 'df' | |
132 | */ | |
8bb8aefd | 133 | static int orangefs_statfs(struct dentry *dentry, struct kstatfs *buf) |
1182fca3 MM |
134 | { |
135 | int ret = -ENOMEM; | |
8bb8aefd | 136 | struct orangefs_kernel_op_s *new_op = NULL; |
1182fca3 MM |
137 | int flags = 0; |
138 | struct super_block *sb = NULL; | |
139 | ||
140 | sb = dentry->d_sb; | |
141 | ||
142 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
8bb8aefd | 143 | "orangefs_statfs: called on sb %p (fs_id is %d)\n", |
1182fca3 | 144 | sb, |
8bb8aefd | 145 | (int)(ORANGEFS_SB(sb)->fs_id)); |
1182fca3 | 146 | |
8bb8aefd | 147 | new_op = op_alloc(ORANGEFS_VFS_OP_STATFS); |
1182fca3 MM |
148 | if (!new_op) |
149 | return ret; | |
8bb8aefd | 150 | new_op->upcall.req.statfs.fs_id = ORANGEFS_SB(sb)->fs_id; |
1182fca3 | 151 | |
8bb8aefd YL |
152 | if (ORANGEFS_SB(sb)->flags & ORANGEFS_OPT_INTR) |
153 | flags = ORANGEFS_OP_INTERRUPTIBLE; | |
1182fca3 | 154 | |
8bb8aefd | 155 | ret = service_operation(new_op, "orangefs_statfs", flags); |
1182fca3 MM |
156 | |
157 | if (new_op->downcall.status < 0) | |
158 | goto out_op_release; | |
159 | ||
160 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
be57366e MM |
161 | "%s: got %ld blocks available | " |
162 | "%ld blocks total | %ld block size | " | |
163 | "%ld files total | %ld files avail\n", | |
164 | __func__, | |
1182fca3 MM |
165 | (long)new_op->downcall.resp.statfs.blocks_avail, |
166 | (long)new_op->downcall.resp.statfs.blocks_total, | |
be57366e MM |
167 | (long)new_op->downcall.resp.statfs.block_size, |
168 | (long)new_op->downcall.resp.statfs.files_total, | |
169 | (long)new_op->downcall.resp.statfs.files_avail); | |
1182fca3 MM |
170 | |
171 | buf->f_type = sb->s_magic; | |
8bb8aefd | 172 | memcpy(&buf->f_fsid, &ORANGEFS_SB(sb)->fs_id, sizeof(buf->f_fsid)); |
1182fca3 | 173 | buf->f_bsize = new_op->downcall.resp.statfs.block_size; |
47b4948f | 174 | buf->f_namelen = ORANGEFS_NAME_MAX; |
1182fca3 MM |
175 | |
176 | buf->f_blocks = (sector_t) new_op->downcall.resp.statfs.blocks_total; | |
177 | buf->f_bfree = (sector_t) new_op->downcall.resp.statfs.blocks_avail; | |
178 | buf->f_bavail = (sector_t) new_op->downcall.resp.statfs.blocks_avail; | |
179 | buf->f_files = (sector_t) new_op->downcall.resp.statfs.files_total; | |
180 | buf->f_ffree = (sector_t) new_op->downcall.resp.statfs.files_avail; | |
181 | buf->f_frsize = sb->s_blocksize; | |
182 | ||
183 | out_op_release: | |
184 | op_release(new_op); | |
8bb8aefd | 185 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_statfs: returning %d\n", ret); |
1182fca3 MM |
186 | return ret; |
187 | } | |
188 | ||
189 | /* | |
190 | * Remount as initiated by VFS layer. We just need to reparse the mount | |
191 | * options, no need to signal pvfs2-client-core about it. | |
192 | */ | |
8bb8aefd | 193 | static int orangefs_remount_fs(struct super_block *sb, int *flags, char *data) |
1182fca3 | 194 | { |
8bb8aefd | 195 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount_fs: called\n"); |
1182fca3 MM |
196 | return parse_mount_options(sb, data, 1); |
197 | } | |
198 | ||
199 | /* | |
200 | * Remount as initiated by pvfs2-client-core on restart. This is used to | |
201 | * repopulate mount information left from previous pvfs2-client-core. | |
202 | * | |
203 | * the idea here is that given a valid superblock, we're | |
204 | * re-initializing the user space client with the initial mount | |
205 | * information specified when the super block was first initialized. | |
206 | * this is very different than the first initialization/creation of a | |
207 | * superblock. we use the special service_priority_operation to make | |
208 | * sure that the mount gets ahead of any other pending operation that | |
209 | * is waiting for servicing. this means that the pvfs2-client won't | |
210 | * fail to start several times for all other pending operations before | |
211 | * the client regains all of the mount information from us. | |
212 | * NOTE: this function assumes that the request_mutex is already acquired! | |
213 | */ | |
45996492 | 214 | int orangefs_remount(struct orangefs_sb_info_s *orangefs_sb) |
1182fca3 | 215 | { |
8bb8aefd | 216 | struct orangefs_kernel_op_s *new_op; |
1182fca3 MM |
217 | int ret = -EINVAL; |
218 | ||
8bb8aefd | 219 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_remount: called\n"); |
1182fca3 | 220 | |
8bb8aefd | 221 | new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT); |
1182fca3 MM |
222 | if (!new_op) |
223 | return -ENOMEM; | |
8bb8aefd | 224 | strncpy(new_op->upcall.req.fs_mount.orangefs_config_server, |
45996492 | 225 | orangefs_sb->devname, |
8bb8aefd | 226 | ORANGEFS_MAX_SERVER_ADDR_LEN); |
1182fca3 MM |
227 | |
228 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
8bb8aefd YL |
229 | "Attempting ORANGEFS Remount via host %s\n", |
230 | new_op->upcall.req.fs_mount.orangefs_config_server); | |
1182fca3 MM |
231 | |
232 | /* | |
adcf34a2 | 233 | * we assume that the calling function has already acquired the |
1182fca3 MM |
234 | * request_mutex to prevent other operations from bypassing |
235 | * this one | |
236 | */ | |
8bb8aefd | 237 | ret = service_operation(new_op, "orangefs_remount", |
adcf34a2 | 238 | ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX); |
1182fca3 | 239 | gossip_debug(GOSSIP_SUPER_DEBUG, |
8bb8aefd | 240 | "orangefs_remount: mount got return value of %d\n", |
1182fca3 MM |
241 | ret); |
242 | if (ret == 0) { | |
243 | /* | |
244 | * store the id assigned to this sb -- it's just a | |
245 | * short-lived mapping that the system interface uses | |
246 | * to map this superblock to a particular mount entry | |
247 | */ | |
45996492 AV |
248 | orangefs_sb->id = new_op->downcall.resp.fs_mount.id; |
249 | orangefs_sb->mount_pending = 0; | |
1182fca3 MM |
250 | } |
251 | ||
252 | op_release(new_op); | |
482664dd | 253 | |
f60fbdbf | 254 | if (orangefs_userspace_version >= 20906) { |
482664dd MB |
255 | new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES); |
256 | if (!new_op) | |
257 | return -ENOMEM; | |
258 | new_op->upcall.req.features.features = 0; | |
259 | ret = service_operation(new_op, "orangefs_features", 0); | |
260 | orangefs_features = new_op->downcall.resp.features.features; | |
261 | op_release(new_op); | |
262 | } else { | |
263 | orangefs_features = 0; | |
264 | } | |
265 | ||
1182fca3 MM |
266 | return ret; |
267 | } | |
268 | ||
269 | int fsid_key_table_initialize(void) | |
270 | { | |
271 | return 0; | |
272 | } | |
273 | ||
274 | void fsid_key_table_finalize(void) | |
275 | { | |
276 | } | |
277 | ||
278 | /* Called whenever the VFS dirties the inode in response to atime updates */ | |
8bb8aefd | 279 | static void orangefs_dirty_inode(struct inode *inode, int flags) |
1182fca3 | 280 | { |
8bb8aefd | 281 | struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
1182fca3 MM |
282 | |
283 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
8bb8aefd | 284 | "orangefs_dirty_inode: %pU\n", |
1182fca3 | 285 | get_khandle_from_ino(inode)); |
8bb8aefd | 286 | SetAtimeFlag(orangefs_inode); |
1182fca3 MM |
287 | } |
288 | ||
8bb8aefd YL |
289 | static const struct super_operations orangefs_s_ops = { |
290 | .alloc_inode = orangefs_alloc_inode, | |
291 | .destroy_inode = orangefs_destroy_inode, | |
292 | .dirty_inode = orangefs_dirty_inode, | |
1182fca3 | 293 | .drop_inode = generic_delete_inode, |
8bb8aefd YL |
294 | .statfs = orangefs_statfs, |
295 | .remount_fs = orangefs_remount_fs, | |
1182fca3 MM |
296 | .show_options = generic_show_options, |
297 | }; | |
298 | ||
8bb8aefd | 299 | static struct dentry *orangefs_fh_to_dentry(struct super_block *sb, |
1182fca3 MM |
300 | struct fid *fid, |
301 | int fh_len, | |
302 | int fh_type) | |
303 | { | |
8bb8aefd | 304 | struct orangefs_object_kref refn; |
1182fca3 MM |
305 | |
306 | if (fh_len < 5 || fh_type > 2) | |
307 | return NULL; | |
308 | ||
8bb8aefd | 309 | ORANGEFS_khandle_from(&(refn.khandle), fid->raw, 16); |
1182fca3 MM |
310 | refn.fs_id = (u32) fid->raw[4]; |
311 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
312 | "fh_to_dentry: handle %pU, fs_id %d\n", | |
313 | &refn.khandle, | |
314 | refn.fs_id); | |
315 | ||
8bb8aefd | 316 | return d_obtain_alias(orangefs_iget(sb, &refn)); |
1182fca3 MM |
317 | } |
318 | ||
8bb8aefd | 319 | static int orangefs_encode_fh(struct inode *inode, |
1182fca3 MM |
320 | __u32 *fh, |
321 | int *max_len, | |
322 | struct inode *parent) | |
323 | { | |
324 | int len = parent ? 10 : 5; | |
325 | int type = 1; | |
8bb8aefd | 326 | struct orangefs_object_kref refn; |
1182fca3 MM |
327 | |
328 | if (*max_len < len) { | |
329 | gossip_lerr("fh buffer is too small for encoding\n"); | |
330 | *max_len = len; | |
331 | type = 255; | |
332 | goto out; | |
333 | } | |
334 | ||
8bb8aefd YL |
335 | refn = ORANGEFS_I(inode)->refn; |
336 | ORANGEFS_khandle_to(&refn.khandle, fh, 16); | |
1182fca3 MM |
337 | fh[4] = refn.fs_id; |
338 | ||
339 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
340 | "Encoding fh: handle %pU, fsid %u\n", | |
341 | &refn.khandle, | |
342 | refn.fs_id); | |
343 | ||
344 | ||
345 | if (parent) { | |
8bb8aefd YL |
346 | refn = ORANGEFS_I(parent)->refn; |
347 | ORANGEFS_khandle_to(&refn.khandle, (char *) fh + 20, 16); | |
1182fca3 MM |
348 | fh[9] = refn.fs_id; |
349 | ||
350 | type = 2; | |
351 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
352 | "Encoding parent: handle %pU, fsid %u\n", | |
353 | &refn.khandle, | |
354 | refn.fs_id); | |
355 | } | |
356 | *max_len = len; | |
357 | ||
358 | out: | |
359 | return type; | |
360 | } | |
361 | ||
acaca36d | 362 | static const struct export_operations orangefs_export_ops = { |
8bb8aefd YL |
363 | .encode_fh = orangefs_encode_fh, |
364 | .fh_to_dentry = orangefs_fh_to_dentry, | |
1182fca3 MM |
365 | }; |
366 | ||
8bb8aefd YL |
367 | static int orangefs_fill_sb(struct super_block *sb, |
368 | struct orangefs_fs_mount_response *fs_mount, | |
5c0dbbc6 | 369 | void *data, int silent) |
1182fca3 MM |
370 | { |
371 | int ret = -EINVAL; | |
372 | struct inode *root = NULL; | |
373 | struct dentry *root_dentry = NULL; | |
8bb8aefd | 374 | struct orangefs_object_kref root_object; |
1182fca3 | 375 | |
8bb8aefd | 376 | /* alloc and init our private orangefs sb info */ |
05d31c5c | 377 | sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL); |
8bb8aefd | 378 | if (!ORANGEFS_SB(sb)) |
1182fca3 | 379 | return -ENOMEM; |
8bb8aefd | 380 | ORANGEFS_SB(sb)->sb = sb; |
1182fca3 | 381 | |
8bb8aefd YL |
382 | ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle; |
383 | ORANGEFS_SB(sb)->fs_id = fs_mount->fs_id; | |
384 | ORANGEFS_SB(sb)->id = fs_mount->id; | |
1182fca3 | 385 | |
5c0dbbc6 AV |
386 | if (data) { |
387 | ret = parse_mount_options(sb, data, silent); | |
1182fca3 MM |
388 | if (ret) |
389 | return ret; | |
390 | } | |
391 | ||
392 | /* Hang the xattr handlers off the superblock */ | |
8bb8aefd YL |
393 | sb->s_xattr = orangefs_xattr_handlers; |
394 | sb->s_magic = ORANGEFS_SUPER_MAGIC; | |
395 | sb->s_op = &orangefs_s_ops; | |
396 | sb->s_d_op = &orangefs_dentry_operations; | |
1182fca3 | 397 | |
8bb8aefd YL |
398 | sb->s_blocksize = orangefs_bufmap_size_query(); |
399 | sb->s_blocksize_bits = orangefs_bufmap_shift_query(); | |
1182fca3 MM |
400 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
401 | ||
8bb8aefd YL |
402 | root_object.khandle = ORANGEFS_SB(sb)->root_khandle; |
403 | root_object.fs_id = ORANGEFS_SB(sb)->fs_id; | |
1182fca3 MM |
404 | gossip_debug(GOSSIP_SUPER_DEBUG, |
405 | "get inode %pU, fsid %d\n", | |
406 | &root_object.khandle, | |
407 | root_object.fs_id); | |
408 | ||
8bb8aefd | 409 | root = orangefs_iget(sb, &root_object); |
1182fca3 MM |
410 | if (IS_ERR(root)) |
411 | return PTR_ERR(root); | |
412 | ||
413 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
414 | "Allocated root inode [%p] with mode %x\n", | |
415 | root, | |
416 | root->i_mode); | |
417 | ||
418 | /* allocates and places root dentry in dcache */ | |
419 | root_dentry = d_make_root(root); | |
b05a7851 | 420 | if (!root_dentry) |
1182fca3 | 421 | return -ENOMEM; |
1182fca3 | 422 | |
8bb8aefd | 423 | sb->s_export_op = &orangefs_export_ops; |
1182fca3 MM |
424 | sb->s_root = root_dentry; |
425 | return 0; | |
426 | } | |
427 | ||
8bb8aefd | 428 | struct dentry *orangefs_mount(struct file_system_type *fst, |
1182fca3 MM |
429 | int flags, |
430 | const char *devname, | |
431 | void *data) | |
432 | { | |
433 | int ret = -EINVAL; | |
434 | struct super_block *sb = ERR_PTR(-EINVAL); | |
8bb8aefd | 435 | struct orangefs_kernel_op_s *new_op; |
1be21f86 | 436 | struct dentry *d = ERR_PTR(-EINVAL); |
1182fca3 MM |
437 | |
438 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
8bb8aefd | 439 | "orangefs_mount: called with devname %s\n", |
1182fca3 MM |
440 | devname); |
441 | ||
442 | if (!devname) { | |
443 | gossip_err("ERROR: device name not specified.\n"); | |
444 | return ERR_PTR(-EINVAL); | |
445 | } | |
446 | ||
8bb8aefd | 447 | new_op = op_alloc(ORANGEFS_VFS_OP_FS_MOUNT); |
1182fca3 MM |
448 | if (!new_op) |
449 | return ERR_PTR(-ENOMEM); | |
450 | ||
8bb8aefd | 451 | strncpy(new_op->upcall.req.fs_mount.orangefs_config_server, |
1182fca3 | 452 | devname, |
8bb8aefd | 453 | ORANGEFS_MAX_SERVER_ADDR_LEN); |
1182fca3 MM |
454 | |
455 | gossip_debug(GOSSIP_SUPER_DEBUG, | |
8bb8aefd YL |
456 | "Attempting ORANGEFS Mount via host %s\n", |
457 | new_op->upcall.req.fs_mount.orangefs_config_server); | |
1182fca3 | 458 | |
8bb8aefd | 459 | ret = service_operation(new_op, "orangefs_mount", 0); |
1182fca3 | 460 | gossip_debug(GOSSIP_SUPER_DEBUG, |
8bb8aefd | 461 | "orangefs_mount: mount got return value of %d\n", ret); |
1182fca3 MM |
462 | if (ret) |
463 | goto free_op; | |
464 | ||
8bb8aefd | 465 | if (new_op->downcall.resp.fs_mount.fs_id == ORANGEFS_FS_ID_NULL) { |
1182fca3 MM |
466 | gossip_err("ERROR: Retrieved null fs_id\n"); |
467 | ret = -EINVAL; | |
468 | goto free_op; | |
469 | } | |
470 | ||
1be21f86 MM |
471 | sb = sget(fst, NULL, set_anon_super, flags, NULL); |
472 | ||
473 | if (IS_ERR(sb)) { | |
474 | d = ERR_CAST(sb); | |
1182fca3 MM |
475 | goto free_op; |
476 | } | |
477 | ||
8bb8aefd | 478 | ret = orangefs_fill_sb(sb, |
5c0dbbc6 | 479 | &new_op->downcall.resp.fs_mount, data, |
1be21f86 MM |
480 | flags & MS_SILENT ? 1 : 0); |
481 | ||
482 | if (ret) { | |
483 | d = ERR_PTR(ret); | |
484 | goto free_op; | |
485 | } | |
1182fca3 MM |
486 | |
487 | /* | |
488 | * on successful mount, store the devname and data | |
489 | * used | |
490 | */ | |
8bb8aefd | 491 | strncpy(ORANGEFS_SB(sb)->devname, |
1182fca3 | 492 | devname, |
8bb8aefd | 493 | ORANGEFS_MAX_SERVER_ADDR_LEN); |
1182fca3 MM |
494 | |
495 | /* mount_pending must be cleared */ | |
8bb8aefd | 496 | ORANGEFS_SB(sb)->mount_pending = 0; |
1182fca3 MM |
497 | |
498 | /* | |
8bb8aefd | 499 | * finally, add this sb to our list of known orangefs |
1182fca3 MM |
500 | * sb's |
501 | */ | |
45996492 AV |
502 | gossip_debug(GOSSIP_SUPER_DEBUG, |
503 | "Adding SB %p to orangefs superblocks\n", | |
504 | ORANGEFS_SB(sb)); | |
505 | spin_lock(&orangefs_superblocks_lock); | |
506 | list_add_tail(&ORANGEFS_SB(sb)->list, &orangefs_superblocks); | |
507 | spin_unlock(&orangefs_superblocks_lock); | |
1182fca3 | 508 | op_release(new_op); |
482664dd | 509 | |
f60fbdbf | 510 | if (orangefs_userspace_version >= 20906) { |
482664dd MB |
511 | new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES); |
512 | if (!new_op) | |
513 | return ERR_PTR(-ENOMEM); | |
514 | new_op->upcall.req.features.features = 0; | |
515 | ret = service_operation(new_op, "orangefs_features", 0); | |
516 | orangefs_features = new_op->downcall.resp.features.features; | |
517 | op_release(new_op); | |
518 | } else { | |
519 | orangefs_features = 0; | |
520 | } | |
521 | ||
1be21f86 | 522 | return dget(sb->s_root); |
1182fca3 MM |
523 | |
524 | free_op: | |
8bb8aefd | 525 | gossip_err("orangefs_mount: mount request failed with %d\n", ret); |
1182fca3 | 526 | if (ret == -EINVAL) { |
8bb8aefd | 527 | gossip_err("Ensure that all orangefs-servers have the same FS configuration files\n"); |
1182fca3 MM |
528 | gossip_err("Look at pvfs2-client-core log file (typically /tmp/pvfs2-client.log) for more details\n"); |
529 | } | |
530 | ||
531 | op_release(new_op); | |
532 | ||
1be21f86 | 533 | return d; |
1182fca3 MM |
534 | } |
535 | ||
8bb8aefd | 536 | void orangefs_kill_sb(struct super_block *sb) |
1182fca3 | 537 | { |
8bb8aefd | 538 | gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_kill_sb: called\n"); |
1182fca3 | 539 | |
524b1d30 AV |
540 | /* provided sb cleanup */ |
541 | kill_anon_super(sb); | |
542 | ||
1182fca3 MM |
543 | /* |
544 | * issue the unmount to userspace to tell it to remove the | |
545 | * dynamic mount info it has for this superblock | |
546 | */ | |
45996492 | 547 | orangefs_unmount_sb(sb); |
1182fca3 | 548 | |
8bb8aefd | 549 | /* remove the sb from our list of orangefs specific sb's */ |
45996492 AV |
550 | |
551 | spin_lock(&orangefs_superblocks_lock); | |
552 | __list_del_entry(&ORANGEFS_SB(sb)->list); /* not list_del_init */ | |
553 | ORANGEFS_SB(sb)->list.prev = NULL; | |
554 | spin_unlock(&orangefs_superblocks_lock); | |
555 | ||
556 | /* | |
557 | * make sure that ORANGEFS_DEV_REMOUNT_ALL loop that might've seen us | |
558 | * gets completed before we free the dang thing. | |
559 | */ | |
1d503617 MB |
560 | mutex_lock(&orangefs_request_mutex); |
561 | mutex_unlock(&orangefs_request_mutex); | |
1182fca3 | 562 | |
8bb8aefd YL |
563 | /* free the orangefs superblock private data */ |
564 | kfree(ORANGEFS_SB(sb)); | |
1182fca3 MM |
565 | } |
566 | ||
8bb8aefd | 567 | int orangefs_inode_cache_initialize(void) |
1182fca3 | 568 | { |
8bb8aefd YL |
569 | orangefs_inode_cache = kmem_cache_create("orangefs_inode_cache", |
570 | sizeof(struct orangefs_inode_s), | |
1182fca3 | 571 | 0, |
8bb8aefd YL |
572 | ORANGEFS_CACHE_CREATE_FLAGS, |
573 | orangefs_inode_cache_ctor); | |
1182fca3 | 574 | |
8bb8aefd YL |
575 | if (!orangefs_inode_cache) { |
576 | gossip_err("Cannot create orangefs_inode_cache\n"); | |
1182fca3 MM |
577 | return -ENOMEM; |
578 | } | |
579 | return 0; | |
580 | } | |
581 | ||
8bb8aefd | 582 | int orangefs_inode_cache_finalize(void) |
1182fca3 | 583 | { |
8bb8aefd | 584 | kmem_cache_destroy(orangefs_inode_cache); |
1182fca3 MM |
585 | return 0; |
586 | } |