Commit | Line | Data |
---|---|---|
f24e9980 SW |
1 | #include "ceph_debug.h" |
2 | ||
3 | #include <linux/err.h> | |
4 | #include <linux/highmem.h> | |
5 | #include <linux/mm.h> | |
6 | #include <linux/pagemap.h> | |
7 | #include <linux/slab.h> | |
8 | #include <linux/uaccess.h> | |
9 | ||
10 | #include "super.h" | |
11 | #include "osd_client.h" | |
12 | #include "messenger.h" | |
13 | #include "decode.h" | |
4e7a5dcd | 14 | #include "auth.h" |
f24e9980 | 15 | |
c16e7869 SW |
16 | #define OSD_OP_FRONT_LEN 4096 |
17 | #define OSD_OPREPLY_FRONT_LEN 512 | |
0d59ab81 | 18 | |
9e32789f | 19 | static const struct ceph_connection_operations osd_con_ops; |
422d2cb8 YS |
20 | static int __kick_requests(struct ceph_osd_client *osdc, |
21 | struct ceph_osd *kickosd); | |
f24e9980 SW |
22 | |
23 | static void kick_requests(struct ceph_osd_client *osdc, struct ceph_osd *osd); | |
24 | ||
3499e8a5 YS |
25 | void ceph_calc_raw_layout(struct ceph_osd_client *osdc, |
26 | struct ceph_file_layout *layout, | |
27 | u64 snapid, | |
28 | u64 off, u64 len, u64 *bno, | |
29 | struct ceph_osd_request *req) | |
30 | { | |
31 | struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base; | |
32 | struct ceph_osd_op *op = (void *)(reqhead + 1); | |
33 | u64 orig_len = len; | |
34 | u64 objoff, objlen; /* extent in object */ | |
35 | ||
36 | reqhead->snapid = cpu_to_le64(snapid); | |
37 | ||
38 | /* object extent? */ | |
39 | ceph_calc_file_object_mapping(layout, off, &len, bno, | |
40 | &objoff, &objlen); | |
41 | if (len < orig_len) | |
42 | dout(" skipping last %llu, final file extent %llu~%llu\n", | |
43 | orig_len - len, off, len); | |
44 | ||
45 | op->extent.offset = cpu_to_le64(objoff); | |
46 | op->extent.length = cpu_to_le64(objlen); | |
47 | req->r_num_pages = calc_pages_for(off, len); | |
48 | ||
49 | dout("calc_layout bno=%llx %llu~%llu (%d pages)\n", | |
50 | *bno, objoff, objlen, req->r_num_pages); | |
51 | ||
52 | } | |
53 | ||
f24e9980 SW |
54 | /* |
55 | * Implement client access to distributed object storage cluster. | |
56 | * | |
57 | * All data objects are stored within a cluster/cloud of OSDs, or | |
58 | * "object storage devices." (Note that Ceph OSDs have _nothing_ to | |
59 | * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply | |
60 | * remote daemons serving up and coordinating consistent and safe | |
61 | * access to storage. | |
62 | * | |
63 | * Cluster membership and the mapping of data objects onto storage devices | |
64 | * are described by the osd map. | |
65 | * | |
66 | * We keep track of pending OSD requests (read, write), resubmit | |
67 | * requests to different OSDs when the cluster topology/data layout | |
68 | * change, or retry the affected requests when the communications | |
69 | * channel with an OSD is reset. | |
70 | */ | |
71 | ||
72 | /* | |
73 | * calculate the mapping of a file extent onto an object, and fill out the | |
74 | * request accordingly. shorten extent as necessary if it crosses an | |
75 | * object boundary. | |
76 | * | |
77 | * fill osd op in request message. | |
78 | */ | |
79 | static void calc_layout(struct ceph_osd_client *osdc, | |
3499e8a5 YS |
80 | struct ceph_vino vino, |
81 | struct ceph_file_layout *layout, | |
f24e9980 SW |
82 | u64 off, u64 *plen, |
83 | struct ceph_osd_request *req) | |
84 | { | |
f24e9980 SW |
85 | u64 bno; |
86 | ||
3499e8a5 | 87 | ceph_calc_raw_layout(osdc, layout, vino.snap, off, *plen, &bno, req); |
f24e9980 SW |
88 | |
89 | sprintf(req->r_oid, "%llx.%08llx", vino.ino, bno); | |
90 | req->r_oid_len = strlen(req->r_oid); | |
f24e9980 SW |
91 | } |
92 | ||
f24e9980 SW |
93 | /* |
94 | * requests | |
95 | */ | |
415e49a9 | 96 | void ceph_osdc_release_request(struct kref *kref) |
f24e9980 | 97 | { |
415e49a9 SW |
98 | struct ceph_osd_request *req = container_of(kref, |
99 | struct ceph_osd_request, | |
100 | r_kref); | |
101 | ||
102 | if (req->r_request) | |
103 | ceph_msg_put(req->r_request); | |
104 | if (req->r_reply) | |
105 | ceph_msg_put(req->r_reply); | |
0d59ab81 | 106 | if (req->r_con_filling_msg) { |
350b1c32 | 107 | dout("release_request revoking pages %p from con %p\n", |
0d59ab81 YS |
108 | req->r_pages, req->r_con_filling_msg); |
109 | ceph_con_revoke_message(req->r_con_filling_msg, | |
110 | req->r_reply); | |
111 | ceph_con_put(req->r_con_filling_msg); | |
350b1c32 | 112 | } |
415e49a9 SW |
113 | if (req->r_own_pages) |
114 | ceph_release_page_vector(req->r_pages, | |
115 | req->r_num_pages); | |
116 | ceph_put_snap_context(req->r_snapc); | |
117 | if (req->r_mempool) | |
118 | mempool_free(req, req->r_osdc->req_mempool); | |
119 | else | |
120 | kfree(req); | |
f24e9980 SW |
121 | } |
122 | ||
3499e8a5 YS |
123 | struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, |
124 | int flags, | |
f24e9980 SW |
125 | struct ceph_snap_context *snapc, |
126 | int do_sync, | |
3499e8a5 YS |
127 | bool use_mempool, |
128 | gfp_t gfp_flags, | |
129 | struct page **pages) | |
f24e9980 SW |
130 | { |
131 | struct ceph_osd_request *req; | |
132 | struct ceph_msg *msg; | |
0c948992 | 133 | int num_op = 1 + do_sync; |
3499e8a5 YS |
134 | size_t msg_size = sizeof(struct ceph_osd_request_head) + |
135 | num_op*sizeof(struct ceph_osd_op); | |
136 | ||
137 | if (use_mempool) { | |
138 | req = mempool_alloc(osdc->req_mempool, gfp_flags); | |
139 | memset(req, 0, sizeof(*req)); | |
140 | } else { | |
141 | req = kzalloc(sizeof(*req), gfp_flags); | |
142 | } | |
143 | if (!req) | |
144 | return NULL; | |
f24e9980 SW |
145 | |
146 | if (use_mempool) { | |
3499e8a5 | 147 | req = mempool_alloc(osdc->req_mempool, gfp_flags); |
f24e9980 SW |
148 | memset(req, 0, sizeof(*req)); |
149 | } else { | |
3499e8a5 | 150 | req = kzalloc(sizeof(*req), gfp_flags); |
f24e9980 SW |
151 | } |
152 | if (req == NULL) | |
a79832f2 | 153 | return NULL; |
f24e9980 | 154 | |
f24e9980 SW |
155 | req->r_osdc = osdc; |
156 | req->r_mempool = use_mempool; | |
415e49a9 | 157 | kref_init(&req->r_kref); |
f24e9980 SW |
158 | init_completion(&req->r_completion); |
159 | init_completion(&req->r_safe_completion); | |
160 | INIT_LIST_HEAD(&req->r_unsafe_item); | |
161 | req->r_flags = flags; | |
162 | ||
163 | WARN_ON((flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE)) == 0); | |
164 | ||
c16e7869 SW |
165 | /* create reply message */ |
166 | if (use_mempool) | |
167 | msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); | |
168 | else | |
169 | msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, | |
3499e8a5 | 170 | OSD_OPREPLY_FRONT_LEN, gfp_flags); |
a79832f2 | 171 | if (!msg) { |
c16e7869 | 172 | ceph_osdc_put_request(req); |
a79832f2 | 173 | return NULL; |
c16e7869 SW |
174 | } |
175 | req->r_reply = msg; | |
176 | ||
177 | /* create request message; allow space for oid */ | |
f24e9980 SW |
178 | msg_size += 40; |
179 | if (snapc) | |
180 | msg_size += sizeof(u64) * snapc->num_snaps; | |
181 | if (use_mempool) | |
8f3bc053 | 182 | msg = ceph_msgpool_get(&osdc->msgpool_op, 0); |
f24e9980 | 183 | else |
3499e8a5 | 184 | msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp_flags); |
a79832f2 | 185 | if (!msg) { |
f24e9980 | 186 | ceph_osdc_put_request(req); |
a79832f2 | 187 | return NULL; |
f24e9980 SW |
188 | } |
189 | msg->hdr.type = cpu_to_le16(CEPH_MSG_OSD_OP); | |
190 | memset(msg->front.iov_base, 0, msg->front.iov_len); | |
3499e8a5 YS |
191 | |
192 | req->r_request = msg; | |
193 | req->r_pages = pages; | |
194 | ||
195 | return req; | |
196 | } | |
197 | ||
198 | /* | |
199 | * build new request AND message | |
200 | * | |
201 | */ | |
202 | void ceph_osdc_build_request(struct ceph_osd_request *req, | |
203 | u64 off, u64 *plen, | |
204 | int opcode, | |
205 | struct ceph_snap_context *snapc, | |
206 | int do_sync, | |
207 | u32 truncate_seq, | |
208 | u64 truncate_size, | |
209 | struct timespec *mtime, | |
210 | const char *oid, | |
211 | int oid_len) | |
212 | { | |
213 | struct ceph_msg *msg = req->r_request; | |
214 | struct ceph_osd_request_head *head; | |
215 | struct ceph_osd_op *op; | |
216 | void *p; | |
217 | int num_op = 1 + do_sync; | |
218 | size_t msg_size = sizeof(*head) + num_op*sizeof(*op); | |
219 | int i; | |
220 | int flags = req->r_flags; | |
221 | ||
f24e9980 SW |
222 | head = msg->front.iov_base; |
223 | op = (void *)(head + 1); | |
224 | p = (void *)(op + num_op); | |
225 | ||
f24e9980 SW |
226 | req->r_snapc = ceph_get_snap_context(snapc); |
227 | ||
228 | head->client_inc = cpu_to_le32(1); /* always, for now. */ | |
229 | head->flags = cpu_to_le32(flags); | |
230 | if (flags & CEPH_OSD_FLAG_WRITE) | |
231 | ceph_encode_timespec(&head->mtime, mtime); | |
232 | head->num_ops = cpu_to_le16(num_op); | |
233 | op->op = cpu_to_le16(opcode); | |
234 | ||
f24e9980 SW |
235 | if (flags & CEPH_OSD_FLAG_WRITE) { |
236 | req->r_request->hdr.data_off = cpu_to_le16(off); | |
237 | req->r_request->hdr.data_len = cpu_to_le32(*plen); | |
238 | op->payload_len = cpu_to_le32(*plen); | |
239 | } | |
0c948992 YS |
240 | op->extent.truncate_size = cpu_to_le64(truncate_size); |
241 | op->extent.truncate_seq = cpu_to_le32(truncate_seq); | |
f24e9980 SW |
242 | |
243 | /* fill in oid */ | |
3499e8a5 YS |
244 | head->object_len = cpu_to_le32(oid_len); |
245 | memcpy(p, oid, oid_len); | |
246 | p += oid_len; | |
f24e9980 | 247 | |
f24e9980 SW |
248 | if (do_sync) { |
249 | op++; | |
250 | op->op = cpu_to_le16(CEPH_OSD_OP_STARTSYNC); | |
251 | } | |
252 | if (snapc) { | |
253 | head->snap_seq = cpu_to_le64(snapc->seq); | |
254 | head->num_snaps = cpu_to_le32(snapc->num_snaps); | |
255 | for (i = 0; i < snapc->num_snaps; i++) { | |
256 | put_unaligned_le64(snapc->snaps[i], p); | |
257 | p += sizeof(u64); | |
258 | } | |
259 | } | |
260 | ||
261 | BUG_ON(p > msg->front.iov_base + msg->front.iov_len); | |
6f863e71 SW |
262 | msg_size = p - msg->front.iov_base; |
263 | msg->front.iov_len = msg_size; | |
264 | msg->hdr.front_len = cpu_to_le32(msg_size); | |
3499e8a5 YS |
265 | return; |
266 | } | |
267 | ||
268 | /* | |
269 | * build new request AND message, calculate layout, and adjust file | |
270 | * extent as needed. | |
271 | * | |
272 | * if the file was recently truncated, we include information about its | |
273 | * old and new size so that the object can be updated appropriately. (we | |
274 | * avoid synchronously deleting truncated objects because it's slow.) | |
275 | * | |
276 | * if @do_sync, include a 'startsync' command so that the osd will flush | |
277 | * data quickly. | |
278 | */ | |
279 | struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, | |
280 | struct ceph_file_layout *layout, | |
281 | struct ceph_vino vino, | |
282 | u64 off, u64 *plen, | |
283 | int opcode, int flags, | |
284 | struct ceph_snap_context *snapc, | |
285 | int do_sync, | |
286 | u32 truncate_seq, | |
287 | u64 truncate_size, | |
288 | struct timespec *mtime, | |
289 | bool use_mempool, int num_reply) | |
290 | { | |
291 | struct ceph_osd_request *req = | |
292 | ceph_osdc_alloc_request(osdc, flags, | |
293 | snapc, do_sync, | |
294 | use_mempool, | |
295 | GFP_NOFS, NULL); | |
296 | if (IS_ERR(req)) | |
297 | return req; | |
298 | ||
299 | /* calculate max write size */ | |
300 | calc_layout(osdc, vino, layout, off, plen, req); | |
301 | req->r_file_layout = *layout; /* keep a copy */ | |
302 | ||
303 | ceph_osdc_build_request(req, off, plen, opcode, | |
304 | snapc, do_sync, | |
305 | truncate_seq, truncate_size, | |
306 | mtime, | |
307 | req->r_oid, req->r_oid_len); | |
308 | ||
f24e9980 SW |
309 | return req; |
310 | } | |
311 | ||
312 | /* | |
313 | * We keep osd requests in an rbtree, sorted by ->r_tid. | |
314 | */ | |
315 | static void __insert_request(struct ceph_osd_client *osdc, | |
316 | struct ceph_osd_request *new) | |
317 | { | |
318 | struct rb_node **p = &osdc->requests.rb_node; | |
319 | struct rb_node *parent = NULL; | |
320 | struct ceph_osd_request *req = NULL; | |
321 | ||
322 | while (*p) { | |
323 | parent = *p; | |
324 | req = rb_entry(parent, struct ceph_osd_request, r_node); | |
325 | if (new->r_tid < req->r_tid) | |
326 | p = &(*p)->rb_left; | |
327 | else if (new->r_tid > req->r_tid) | |
328 | p = &(*p)->rb_right; | |
329 | else | |
330 | BUG(); | |
331 | } | |
332 | ||
333 | rb_link_node(&new->r_node, parent, p); | |
334 | rb_insert_color(&new->r_node, &osdc->requests); | |
335 | } | |
336 | ||
337 | static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc, | |
338 | u64 tid) | |
339 | { | |
340 | struct ceph_osd_request *req; | |
341 | struct rb_node *n = osdc->requests.rb_node; | |
342 | ||
343 | while (n) { | |
344 | req = rb_entry(n, struct ceph_osd_request, r_node); | |
345 | if (tid < req->r_tid) | |
346 | n = n->rb_left; | |
347 | else if (tid > req->r_tid) | |
348 | n = n->rb_right; | |
349 | else | |
350 | return req; | |
351 | } | |
352 | return NULL; | |
353 | } | |
354 | ||
355 | static struct ceph_osd_request * | |
356 | __lookup_request_ge(struct ceph_osd_client *osdc, | |
357 | u64 tid) | |
358 | { | |
359 | struct ceph_osd_request *req; | |
360 | struct rb_node *n = osdc->requests.rb_node; | |
361 | ||
362 | while (n) { | |
363 | req = rb_entry(n, struct ceph_osd_request, r_node); | |
364 | if (tid < req->r_tid) { | |
365 | if (!n->rb_left) | |
366 | return req; | |
367 | n = n->rb_left; | |
368 | } else if (tid > req->r_tid) { | |
369 | n = n->rb_right; | |
370 | } else { | |
371 | return req; | |
372 | } | |
373 | } | |
374 | return NULL; | |
375 | } | |
376 | ||
377 | ||
378 | /* | |
81b024e7 | 379 | * If the osd connection drops, we need to resubmit all requests. |
f24e9980 SW |
380 | */ |
381 | static void osd_reset(struct ceph_connection *con) | |
382 | { | |
383 | struct ceph_osd *osd = con->private; | |
384 | struct ceph_osd_client *osdc; | |
385 | ||
386 | if (!osd) | |
387 | return; | |
388 | dout("osd_reset osd%d\n", osd->o_osd); | |
389 | osdc = osd->o_osdc; | |
f24e9980 SW |
390 | down_read(&osdc->map_sem); |
391 | kick_requests(osdc, osd); | |
392 | up_read(&osdc->map_sem); | |
393 | } | |
394 | ||
395 | /* | |
396 | * Track open sessions with osds. | |
397 | */ | |
398 | static struct ceph_osd *create_osd(struct ceph_osd_client *osdc) | |
399 | { | |
400 | struct ceph_osd *osd; | |
401 | ||
402 | osd = kzalloc(sizeof(*osd), GFP_NOFS); | |
403 | if (!osd) | |
404 | return NULL; | |
405 | ||
406 | atomic_set(&osd->o_ref, 1); | |
407 | osd->o_osdc = osdc; | |
408 | INIT_LIST_HEAD(&osd->o_requests); | |
f5a2041b | 409 | INIT_LIST_HEAD(&osd->o_osd_lru); |
f24e9980 SW |
410 | osd->o_incarnation = 1; |
411 | ||
412 | ceph_con_init(osdc->client->msgr, &osd->o_con); | |
413 | osd->o_con.private = osd; | |
414 | osd->o_con.ops = &osd_con_ops; | |
415 | osd->o_con.peer_name.type = CEPH_ENTITY_TYPE_OSD; | |
4e7a5dcd | 416 | |
422d2cb8 | 417 | INIT_LIST_HEAD(&osd->o_keepalive_item); |
f24e9980 SW |
418 | return osd; |
419 | } | |
420 | ||
421 | static struct ceph_osd *get_osd(struct ceph_osd *osd) | |
422 | { | |
423 | if (atomic_inc_not_zero(&osd->o_ref)) { | |
424 | dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, | |
425 | atomic_read(&osd->o_ref)); | |
426 | return osd; | |
427 | } else { | |
428 | dout("get_osd %p FAIL\n", osd); | |
429 | return NULL; | |
430 | } | |
431 | } | |
432 | ||
433 | static void put_osd(struct ceph_osd *osd) | |
434 | { | |
435 | dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), | |
436 | atomic_read(&osd->o_ref) - 1); | |
79494d1b SW |
437 | if (atomic_dec_and_test(&osd->o_ref)) { |
438 | struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; | |
439 | ||
440 | if (osd->o_authorizer) | |
441 | ac->ops->destroy_authorizer(ac, osd->o_authorizer); | |
f24e9980 | 442 | kfree(osd); |
79494d1b | 443 | } |
f24e9980 SW |
444 | } |
445 | ||
446 | /* | |
447 | * remove an osd from our map | |
448 | */ | |
f5a2041b | 449 | static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) |
f24e9980 | 450 | { |
f5a2041b | 451 | dout("__remove_osd %p\n", osd); |
f24e9980 SW |
452 | BUG_ON(!list_empty(&osd->o_requests)); |
453 | rb_erase(&osd->o_node, &osdc->osds); | |
f5a2041b | 454 | list_del_init(&osd->o_osd_lru); |
f24e9980 SW |
455 | ceph_con_close(&osd->o_con); |
456 | put_osd(osd); | |
457 | } | |
458 | ||
f5a2041b YS |
459 | static void __move_osd_to_lru(struct ceph_osd_client *osdc, |
460 | struct ceph_osd *osd) | |
461 | { | |
462 | dout("__move_osd_to_lru %p\n", osd); | |
463 | BUG_ON(!list_empty(&osd->o_osd_lru)); | |
464 | list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); | |
465 | osd->lru_ttl = jiffies + osdc->client->mount_args->osd_idle_ttl * HZ; | |
466 | } | |
467 | ||
468 | static void __remove_osd_from_lru(struct ceph_osd *osd) | |
469 | { | |
470 | dout("__remove_osd_from_lru %p\n", osd); | |
471 | if (!list_empty(&osd->o_osd_lru)) | |
472 | list_del_init(&osd->o_osd_lru); | |
473 | } | |
474 | ||
475 | static void remove_old_osds(struct ceph_osd_client *osdc, int remove_all) | |
476 | { | |
477 | struct ceph_osd *osd, *nosd; | |
478 | ||
479 | dout("__remove_old_osds %p\n", osdc); | |
480 | mutex_lock(&osdc->request_mutex); | |
481 | list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { | |
482 | if (!remove_all && time_before(jiffies, osd->lru_ttl)) | |
483 | break; | |
484 | __remove_osd(osdc, osd); | |
485 | } | |
486 | mutex_unlock(&osdc->request_mutex); | |
487 | } | |
488 | ||
f24e9980 SW |
489 | /* |
490 | * reset osd connect | |
491 | */ | |
f5a2041b | 492 | static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) |
f24e9980 | 493 | { |
87b315a5 | 494 | struct ceph_osd_request *req; |
f24e9980 SW |
495 | int ret = 0; |
496 | ||
f5a2041b | 497 | dout("__reset_osd %p osd%d\n", osd, osd->o_osd); |
f24e9980 | 498 | if (list_empty(&osd->o_requests)) { |
f5a2041b | 499 | __remove_osd(osdc, osd); |
87b315a5 SW |
500 | } else if (memcmp(&osdc->osdmap->osd_addr[osd->o_osd], |
501 | &osd->o_con.peer_addr, | |
502 | sizeof(osd->o_con.peer_addr)) == 0 && | |
503 | !ceph_con_opened(&osd->o_con)) { | |
504 | dout(" osd addr hasn't changed and connection never opened," | |
505 | " letting msgr retry"); | |
506 | /* touch each r_stamp for handle_timeout()'s benfit */ | |
507 | list_for_each_entry(req, &osd->o_requests, r_osd_item) | |
508 | req->r_stamp = jiffies; | |
509 | ret = -EAGAIN; | |
f24e9980 SW |
510 | } else { |
511 | ceph_con_close(&osd->o_con); | |
512 | ceph_con_open(&osd->o_con, &osdc->osdmap->osd_addr[osd->o_osd]); | |
513 | osd->o_incarnation++; | |
514 | } | |
515 | return ret; | |
516 | } | |
517 | ||
518 | static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new) | |
519 | { | |
520 | struct rb_node **p = &osdc->osds.rb_node; | |
521 | struct rb_node *parent = NULL; | |
522 | struct ceph_osd *osd = NULL; | |
523 | ||
524 | while (*p) { | |
525 | parent = *p; | |
526 | osd = rb_entry(parent, struct ceph_osd, o_node); | |
527 | if (new->o_osd < osd->o_osd) | |
528 | p = &(*p)->rb_left; | |
529 | else if (new->o_osd > osd->o_osd) | |
530 | p = &(*p)->rb_right; | |
531 | else | |
532 | BUG(); | |
533 | } | |
534 | ||
535 | rb_link_node(&new->o_node, parent, p); | |
536 | rb_insert_color(&new->o_node, &osdc->osds); | |
537 | } | |
538 | ||
539 | static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o) | |
540 | { | |
541 | struct ceph_osd *osd; | |
542 | struct rb_node *n = osdc->osds.rb_node; | |
543 | ||
544 | while (n) { | |
545 | osd = rb_entry(n, struct ceph_osd, o_node); | |
546 | if (o < osd->o_osd) | |
547 | n = n->rb_left; | |
548 | else if (o > osd->o_osd) | |
549 | n = n->rb_right; | |
550 | else | |
551 | return osd; | |
552 | } | |
553 | return NULL; | |
554 | } | |
555 | ||
422d2cb8 YS |
556 | static void __schedule_osd_timeout(struct ceph_osd_client *osdc) |
557 | { | |
558 | schedule_delayed_work(&osdc->timeout_work, | |
559 | osdc->client->mount_args->osd_keepalive_timeout * HZ); | |
560 | } | |
561 | ||
562 | static void __cancel_osd_timeout(struct ceph_osd_client *osdc) | |
563 | { | |
564 | cancel_delayed_work(&osdc->timeout_work); | |
565 | } | |
f24e9980 SW |
566 | |
567 | /* | |
568 | * Register request, assign tid. If this is the first request, set up | |
569 | * the timeout event. | |
570 | */ | |
571 | static void register_request(struct ceph_osd_client *osdc, | |
572 | struct ceph_osd_request *req) | |
573 | { | |
f24e9980 SW |
574 | mutex_lock(&osdc->request_mutex); |
575 | req->r_tid = ++osdc->last_tid; | |
6df058c0 | 576 | req->r_request->hdr.tid = cpu_to_le64(req->r_tid); |
422d2cb8 | 577 | INIT_LIST_HEAD(&req->r_req_lru_item); |
f24e9980 SW |
578 | |
579 | dout("register_request %p tid %lld\n", req, req->r_tid); | |
580 | __insert_request(osdc, req); | |
581 | ceph_osdc_get_request(req); | |
582 | osdc->num_requests++; | |
583 | ||
f24e9980 | 584 | if (osdc->num_requests == 1) { |
422d2cb8 YS |
585 | dout(" first request, scheduling timeout\n"); |
586 | __schedule_osd_timeout(osdc); | |
f24e9980 SW |
587 | } |
588 | mutex_unlock(&osdc->request_mutex); | |
589 | } | |
590 | ||
591 | /* | |
592 | * called under osdc->request_mutex | |
593 | */ | |
594 | static void __unregister_request(struct ceph_osd_client *osdc, | |
595 | struct ceph_osd_request *req) | |
596 | { | |
597 | dout("__unregister_request %p tid %lld\n", req, req->r_tid); | |
598 | rb_erase(&req->r_node, &osdc->requests); | |
599 | osdc->num_requests--; | |
600 | ||
0ba6478d SW |
601 | if (req->r_osd) { |
602 | /* make sure the original request isn't in flight. */ | |
603 | ceph_con_revoke(&req->r_osd->o_con, req->r_request); | |
604 | ||
605 | list_del_init(&req->r_osd_item); | |
606 | if (list_empty(&req->r_osd->o_requests)) | |
f5a2041b | 607 | __move_osd_to_lru(osdc, req->r_osd); |
0ba6478d SW |
608 | req->r_osd = NULL; |
609 | } | |
f24e9980 SW |
610 | |
611 | ceph_osdc_put_request(req); | |
612 | ||
422d2cb8 YS |
613 | list_del_init(&req->r_req_lru_item); |
614 | if (osdc->num_requests == 0) { | |
615 | dout(" no requests, canceling timeout\n"); | |
616 | __cancel_osd_timeout(osdc); | |
f24e9980 SW |
617 | } |
618 | } | |
619 | ||
620 | /* | |
621 | * Cancel a previously queued request message | |
622 | */ | |
623 | static void __cancel_request(struct ceph_osd_request *req) | |
624 | { | |
6bc18876 | 625 | if (req->r_sent && req->r_osd) { |
f24e9980 SW |
626 | ceph_con_revoke(&req->r_osd->o_con, req->r_request); |
627 | req->r_sent = 0; | |
628 | } | |
422d2cb8 | 629 | list_del_init(&req->r_req_lru_item); |
f24e9980 SW |
630 | } |
631 | ||
632 | /* | |
633 | * Pick an osd (the first 'up' osd in the pg), allocate the osd struct | |
634 | * (as needed), and set the request r_osd appropriately. If there is | |
635 | * no up osd, set r_osd to NULL. | |
636 | * | |
637 | * Return 0 if unchanged, 1 if changed, or negative on error. | |
638 | * | |
639 | * Caller should hold map_sem for read and request_mutex. | |
640 | */ | |
641 | static int __map_osds(struct ceph_osd_client *osdc, | |
642 | struct ceph_osd_request *req) | |
643 | { | |
644 | struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base; | |
51042122 | 645 | struct ceph_pg pgid; |
d85b7056 SW |
646 | int acting[CEPH_PG_MAX_SIZE]; |
647 | int o = -1, num = 0; | |
f24e9980 | 648 | int err; |
f24e9980 SW |
649 | |
650 | dout("map_osds %p tid %lld\n", req, req->r_tid); | |
651 | err = ceph_calc_object_layout(&reqhead->layout, req->r_oid, | |
652 | &req->r_file_layout, osdc->osdmap); | |
653 | if (err) | |
654 | return err; | |
51042122 | 655 | pgid = reqhead->layout.ol_pgid; |
7740a42f SW |
656 | req->r_pgid = pgid; |
657 | ||
d85b7056 SW |
658 | err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting); |
659 | if (err > 0) { | |
660 | o = acting[0]; | |
661 | num = err; | |
662 | } | |
f24e9980 SW |
663 | |
664 | if ((req->r_osd && req->r_osd->o_osd == o && | |
d85b7056 SW |
665 | req->r_sent >= req->r_osd->o_incarnation && |
666 | req->r_num_pg_osds == num && | |
667 | memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) || | |
f24e9980 SW |
668 | (req->r_osd == NULL && o == -1)) |
669 | return 0; /* no change */ | |
670 | ||
51042122 SW |
671 | dout("map_osds tid %llu pgid %d.%x osd%d (was osd%d)\n", |
672 | req->r_tid, le32_to_cpu(pgid.pool), le16_to_cpu(pgid.ps), o, | |
f24e9980 SW |
673 | req->r_osd ? req->r_osd->o_osd : -1); |
674 | ||
d85b7056 SW |
675 | /* record full pg acting set */ |
676 | memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num); | |
677 | req->r_num_pg_osds = num; | |
678 | ||
f24e9980 SW |
679 | if (req->r_osd) { |
680 | __cancel_request(req); | |
681 | list_del_init(&req->r_osd_item); | |
f24e9980 SW |
682 | req->r_osd = NULL; |
683 | } | |
684 | ||
685 | req->r_osd = __lookup_osd(osdc, o); | |
686 | if (!req->r_osd && o >= 0) { | |
c99eb1c7 SW |
687 | err = -ENOMEM; |
688 | req->r_osd = create_osd(osdc); | |
689 | if (!req->r_osd) | |
690 | goto out; | |
f24e9980 SW |
691 | |
692 | dout("map_osds osd %p is osd%d\n", req->r_osd, o); | |
693 | req->r_osd->o_osd = o; | |
694 | req->r_osd->o_con.peer_name.num = cpu_to_le64(o); | |
695 | __insert_osd(osdc, req->r_osd); | |
696 | ||
697 | ceph_con_open(&req->r_osd->o_con, &osdc->osdmap->osd_addr[o]); | |
698 | } | |
699 | ||
f5a2041b YS |
700 | if (req->r_osd) { |
701 | __remove_osd_from_lru(req->r_osd); | |
f24e9980 | 702 | list_add(&req->r_osd_item, &req->r_osd->o_requests); |
f5a2041b | 703 | } |
d85b7056 | 704 | err = 1; /* osd or pg changed */ |
f24e9980 SW |
705 | |
706 | out: | |
f24e9980 SW |
707 | return err; |
708 | } | |
709 | ||
710 | /* | |
711 | * caller should hold map_sem (for read) and request_mutex | |
712 | */ | |
713 | static int __send_request(struct ceph_osd_client *osdc, | |
714 | struct ceph_osd_request *req) | |
715 | { | |
716 | struct ceph_osd_request_head *reqhead; | |
717 | int err; | |
718 | ||
719 | err = __map_osds(osdc, req); | |
720 | if (err < 0) | |
721 | return err; | |
722 | if (req->r_osd == NULL) { | |
723 | dout("send_request %p no up osds in pg\n", req); | |
724 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
725 | return 0; | |
726 | } | |
727 | ||
728 | dout("send_request %p tid %llu to osd%d flags %d\n", | |
729 | req, req->r_tid, req->r_osd->o_osd, req->r_flags); | |
730 | ||
731 | reqhead = req->r_request->front.iov_base; | |
732 | reqhead->osdmap_epoch = cpu_to_le32(osdc->osdmap->epoch); | |
733 | reqhead->flags |= cpu_to_le32(req->r_flags); /* e.g., RETRY */ | |
734 | reqhead->reassert_version = req->r_reassert_version; | |
735 | ||
3dd72fc0 | 736 | req->r_stamp = jiffies; |
07a27e22 | 737 | list_move_tail(&req->r_req_lru_item, &osdc->req_lru); |
f24e9980 SW |
738 | |
739 | ceph_msg_get(req->r_request); /* send consumes a ref */ | |
740 | ceph_con_send(&req->r_osd->o_con, req->r_request); | |
741 | req->r_sent = req->r_osd->o_incarnation; | |
742 | return 0; | |
743 | } | |
744 | ||
745 | /* | |
746 | * Timeout callback, called every N seconds when 1 or more osd | |
747 | * requests has been active for more than N seconds. When this | |
748 | * happens, we ping all OSDs with requests who have timed out to | |
749 | * ensure any communications channel reset is detected. Reset the | |
750 | * request timeouts another N seconds in the future as we go. | |
751 | * Reschedule the timeout event another N seconds in future (unless | |
752 | * there are no open requests). | |
753 | */ | |
754 | static void handle_timeout(struct work_struct *work) | |
755 | { | |
756 | struct ceph_osd_client *osdc = | |
757 | container_of(work, struct ceph_osd_client, timeout_work.work); | |
422d2cb8 | 758 | struct ceph_osd_request *req, *last_req = NULL; |
f24e9980 | 759 | struct ceph_osd *osd; |
6b805185 | 760 | unsigned long timeout = osdc->client->mount_args->osd_timeout * HZ; |
422d2cb8 YS |
761 | unsigned long keepalive = |
762 | osdc->client->mount_args->osd_keepalive_timeout * HZ; | |
3dd72fc0 | 763 | unsigned long last_stamp = 0; |
f24e9980 | 764 | struct rb_node *p; |
422d2cb8 | 765 | struct list_head slow_osds; |
f24e9980 SW |
766 | |
767 | dout("timeout\n"); | |
768 | down_read(&osdc->map_sem); | |
769 | ||
770 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
771 | ||
772 | mutex_lock(&osdc->request_mutex); | |
773 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
774 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
775 | ||
776 | if (req->r_resend) { | |
777 | int err; | |
778 | ||
779 | dout("osdc resending prev failed %lld\n", req->r_tid); | |
780 | err = __send_request(osdc, req); | |
781 | if (err) | |
782 | dout("osdc failed again on %lld\n", req->r_tid); | |
783 | else | |
784 | req->r_resend = false; | |
785 | continue; | |
786 | } | |
787 | } | |
f24e9980 | 788 | |
422d2cb8 YS |
789 | /* |
790 | * reset osds that appear to be _really_ unresponsive. this | |
791 | * is a failsafe measure.. we really shouldn't be getting to | |
792 | * this point if the system is working properly. the monitors | |
793 | * should mark the osd as failed and we should find out about | |
794 | * it from an updated osd map. | |
795 | */ | |
f26e681d | 796 | while (timeout && !list_empty(&osdc->req_lru)) { |
422d2cb8 YS |
797 | req = list_entry(osdc->req_lru.next, struct ceph_osd_request, |
798 | r_req_lru_item); | |
799 | ||
3dd72fc0 | 800 | if (time_before(jiffies, req->r_stamp + timeout)) |
422d2cb8 YS |
801 | break; |
802 | ||
3dd72fc0 | 803 | BUG_ON(req == last_req && req->r_stamp == last_stamp); |
422d2cb8 | 804 | last_req = req; |
3dd72fc0 | 805 | last_stamp = req->r_stamp; |
422d2cb8 YS |
806 | |
807 | osd = req->r_osd; | |
808 | BUG_ON(!osd); | |
809 | pr_warning(" tid %llu timed out on osd%d, will reset osd\n", | |
810 | req->r_tid, osd->o_osd); | |
811 | __kick_requests(osdc, osd); | |
812 | } | |
813 | ||
814 | /* | |
815 | * ping osds that are a bit slow. this ensures that if there | |
816 | * is a break in the TCP connection we will notice, and reopen | |
817 | * a connection with that osd (from the fault callback). | |
818 | */ | |
819 | INIT_LIST_HEAD(&slow_osds); | |
820 | list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { | |
3dd72fc0 | 821 | if (time_before(jiffies, req->r_stamp + keepalive)) |
422d2cb8 YS |
822 | break; |
823 | ||
824 | osd = req->r_osd; | |
825 | BUG_ON(!osd); | |
826 | dout(" tid %llu is slow, will send keepalive on osd%d\n", | |
f24e9980 | 827 | req->r_tid, osd->o_osd); |
422d2cb8 YS |
828 | list_move_tail(&osd->o_keepalive_item, &slow_osds); |
829 | } | |
830 | while (!list_empty(&slow_osds)) { | |
831 | osd = list_entry(slow_osds.next, struct ceph_osd, | |
832 | o_keepalive_item); | |
833 | list_del_init(&osd->o_keepalive_item); | |
f24e9980 SW |
834 | ceph_con_keepalive(&osd->o_con); |
835 | } | |
836 | ||
422d2cb8 | 837 | __schedule_osd_timeout(osdc); |
f24e9980 SW |
838 | mutex_unlock(&osdc->request_mutex); |
839 | ||
840 | up_read(&osdc->map_sem); | |
841 | } | |
842 | ||
f5a2041b YS |
843 | static void handle_osds_timeout(struct work_struct *work) |
844 | { | |
845 | struct ceph_osd_client *osdc = | |
846 | container_of(work, struct ceph_osd_client, | |
847 | osds_timeout_work.work); | |
848 | unsigned long delay = | |
849 | osdc->client->mount_args->osd_idle_ttl * HZ >> 2; | |
850 | ||
851 | dout("osds timeout\n"); | |
852 | down_read(&osdc->map_sem); | |
853 | remove_old_osds(osdc, 0); | |
854 | up_read(&osdc->map_sem); | |
855 | ||
856 | schedule_delayed_work(&osdc->osds_timeout_work, | |
857 | round_jiffies_relative(delay)); | |
858 | } | |
859 | ||
f24e9980 SW |
860 | /* |
861 | * handle osd op reply. either call the callback if it is specified, | |
862 | * or do the completion to wake up the waiting thread. | |
863 | */ | |
350b1c32 SW |
864 | static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, |
865 | struct ceph_connection *con) | |
f24e9980 SW |
866 | { |
867 | struct ceph_osd_reply_head *rhead = msg->front.iov_base; | |
868 | struct ceph_osd_request *req; | |
869 | u64 tid; | |
870 | int numops, object_len, flags; | |
0ceed5db | 871 | s32 result; |
f24e9980 | 872 | |
6df058c0 | 873 | tid = le64_to_cpu(msg->hdr.tid); |
f24e9980 SW |
874 | if (msg->front.iov_len < sizeof(*rhead)) |
875 | goto bad; | |
f24e9980 SW |
876 | numops = le32_to_cpu(rhead->num_ops); |
877 | object_len = le32_to_cpu(rhead->object_len); | |
0ceed5db | 878 | result = le32_to_cpu(rhead->result); |
f24e9980 SW |
879 | if (msg->front.iov_len != sizeof(*rhead) + object_len + |
880 | numops * sizeof(struct ceph_osd_op)) | |
881 | goto bad; | |
0ceed5db | 882 | dout("handle_reply %p tid %llu result %d\n", msg, tid, (int)result); |
f24e9980 SW |
883 | |
884 | /* lookup */ | |
885 | mutex_lock(&osdc->request_mutex); | |
886 | req = __lookup_request(osdc, tid); | |
887 | if (req == NULL) { | |
888 | dout("handle_reply tid %llu dne\n", tid); | |
889 | mutex_unlock(&osdc->request_mutex); | |
890 | return; | |
891 | } | |
892 | ceph_osdc_get_request(req); | |
893 | flags = le32_to_cpu(rhead->flags); | |
894 | ||
350b1c32 | 895 | /* |
0d59ab81 | 896 | * if this connection filled our message, drop our reference now, to |
350b1c32 SW |
897 | * avoid a (safe but slower) revoke later. |
898 | */ | |
0d59ab81 | 899 | if (req->r_con_filling_msg == con && req->r_reply == msg) { |
c16e7869 | 900 | dout(" dropping con_filling_msg ref %p\n", con); |
0d59ab81 | 901 | req->r_con_filling_msg = NULL; |
350b1c32 SW |
902 | ceph_con_put(con); |
903 | } | |
904 | ||
f24e9980 SW |
905 | if (!req->r_got_reply) { |
906 | unsigned bytes; | |
907 | ||
908 | req->r_result = le32_to_cpu(rhead->result); | |
909 | bytes = le32_to_cpu(msg->hdr.data_len); | |
910 | dout("handle_reply result %d bytes %d\n", req->r_result, | |
911 | bytes); | |
912 | if (req->r_result == 0) | |
913 | req->r_result = bytes; | |
914 | ||
915 | /* in case this is a write and we need to replay, */ | |
916 | req->r_reassert_version = rhead->reassert_version; | |
917 | ||
918 | req->r_got_reply = 1; | |
919 | } else if ((flags & CEPH_OSD_FLAG_ONDISK) == 0) { | |
920 | dout("handle_reply tid %llu dup ack\n", tid); | |
34b43a56 | 921 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
922 | goto done; |
923 | } | |
924 | ||
925 | dout("handle_reply tid %llu flags %d\n", tid, flags); | |
926 | ||
927 | /* either this is a read, or we got the safe response */ | |
0ceed5db SW |
928 | if (result < 0 || |
929 | (flags & CEPH_OSD_FLAG_ONDISK) || | |
f24e9980 SW |
930 | ((flags & CEPH_OSD_FLAG_WRITE) == 0)) |
931 | __unregister_request(osdc, req); | |
932 | ||
933 | mutex_unlock(&osdc->request_mutex); | |
934 | ||
935 | if (req->r_callback) | |
936 | req->r_callback(req, msg); | |
937 | else | |
03066f23 | 938 | complete_all(&req->r_completion); |
f24e9980 SW |
939 | |
940 | if (flags & CEPH_OSD_FLAG_ONDISK) { | |
941 | if (req->r_safe_callback) | |
942 | req->r_safe_callback(req, msg); | |
03066f23 | 943 | complete_all(&req->r_safe_completion); /* fsync waiter */ |
f24e9980 SW |
944 | } |
945 | ||
946 | done: | |
947 | ceph_osdc_put_request(req); | |
948 | return; | |
949 | ||
950 | bad: | |
951 | pr_err("corrupt osd_op_reply got %d %d expected %d\n", | |
952 | (int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len), | |
953 | (int)sizeof(*rhead)); | |
9ec7cab1 | 954 | ceph_msg_dump(msg); |
f24e9980 SW |
955 | } |
956 | ||
957 | ||
422d2cb8 | 958 | static int __kick_requests(struct ceph_osd_client *osdc, |
f24e9980 SW |
959 | struct ceph_osd *kickosd) |
960 | { | |
961 | struct ceph_osd_request *req; | |
962 | struct rb_node *p, *n; | |
963 | int needmap = 0; | |
964 | int err; | |
965 | ||
966 | dout("kick_requests osd%d\n", kickosd ? kickosd->o_osd : -1); | |
153a008b | 967 | if (kickosd) { |
87b315a5 SW |
968 | err = __reset_osd(osdc, kickosd); |
969 | if (err == -EAGAIN) | |
970 | return 1; | |
153a008b | 971 | } else { |
f24e9980 SW |
972 | for (p = rb_first(&osdc->osds); p; p = n) { |
973 | struct ceph_osd *osd = | |
974 | rb_entry(p, struct ceph_osd, o_node); | |
975 | ||
976 | n = rb_next(p); | |
977 | if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || | |
103e2d3a SW |
978 | memcmp(&osd->o_con.peer_addr, |
979 | ceph_osd_addr(osdc->osdmap, | |
980 | osd->o_osd), | |
981 | sizeof(struct ceph_entity_addr)) != 0) | |
f5a2041b | 982 | __reset_osd(osdc, osd); |
f24e9980 SW |
983 | } |
984 | } | |
985 | ||
986 | for (p = rb_first(&osdc->requests); p; p = rb_next(p)) { | |
987 | req = rb_entry(p, struct ceph_osd_request, r_node); | |
988 | ||
989 | if (req->r_resend) { | |
990 | dout(" r_resend set on tid %llu\n", req->r_tid); | |
266673db | 991 | __cancel_request(req); |
f24e9980 SW |
992 | goto kick; |
993 | } | |
266673db SW |
994 | if (req->r_osd && kickosd == req->r_osd) { |
995 | __cancel_request(req); | |
f24e9980 | 996 | goto kick; |
266673db | 997 | } |
f24e9980 SW |
998 | |
999 | err = __map_osds(osdc, req); | |
1000 | if (err == 0) | |
1001 | continue; /* no change */ | |
1002 | if (err < 0) { | |
1003 | /* | |
1004 | * FIXME: really, we should set the request | |
1005 | * error and fail if this isn't a 'nofail' | |
1006 | * request, but that's a fair bit more | |
1007 | * complicated to do. So retry! | |
1008 | */ | |
1009 | dout(" setting r_resend on %llu\n", req->r_tid); | |
1010 | req->r_resend = true; | |
1011 | continue; | |
1012 | } | |
1013 | if (req->r_osd == NULL) { | |
1014 | dout("tid %llu maps to no valid osd\n", req->r_tid); | |
1015 | needmap++; /* request a newer map */ | |
1016 | continue; | |
1017 | } | |
1018 | ||
1019 | kick: | |
c1ea8823 | 1020 | dout("kicking %p tid %llu osd%d\n", req, req->r_tid, |
12eadc19 | 1021 | req->r_osd ? req->r_osd->o_osd : -1); |
f24e9980 SW |
1022 | req->r_flags |= CEPH_OSD_FLAG_RETRY; |
1023 | err = __send_request(osdc, req); | |
1024 | if (err) { | |
1025 | dout(" setting r_resend on %llu\n", req->r_tid); | |
1026 | req->r_resend = true; | |
1027 | } | |
1028 | } | |
422d2cb8 YS |
1029 | |
1030 | return needmap; | |
1031 | } | |
1032 | ||
1033 | /* | |
1034 | * Resubmit osd requests whose osd or osd address has changed. Request | |
1035 | * a new osd map if osds are down, or we are otherwise unable to determine | |
1036 | * how to direct a request. | |
1037 | * | |
1038 | * Close connections to down osds. | |
1039 | * | |
1040 | * If @who is specified, resubmit requests for that specific osd. | |
1041 | * | |
1042 | * Caller should hold map_sem for read and request_mutex. | |
1043 | */ | |
1044 | static void kick_requests(struct ceph_osd_client *osdc, | |
1045 | struct ceph_osd *kickosd) | |
1046 | { | |
1047 | int needmap; | |
1048 | ||
1049 | mutex_lock(&osdc->request_mutex); | |
1050 | needmap = __kick_requests(osdc, kickosd); | |
f24e9980 SW |
1051 | mutex_unlock(&osdc->request_mutex); |
1052 | ||
1053 | if (needmap) { | |
1054 | dout("%d requests for down osds, need new map\n", needmap); | |
1055 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1056 | } | |
f24e9980 | 1057 | |
422d2cb8 | 1058 | } |
f24e9980 SW |
1059 | /* |
1060 | * Process updated osd map. | |
1061 | * | |
1062 | * The message contains any number of incremental and full maps, normally | |
1063 | * indicating some sort of topology change in the cluster. Kick requests | |
1064 | * off to different OSDs as needed. | |
1065 | */ | |
1066 | void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) | |
1067 | { | |
1068 | void *p, *end, *next; | |
1069 | u32 nr_maps, maplen; | |
1070 | u32 epoch; | |
1071 | struct ceph_osdmap *newmap = NULL, *oldmap; | |
1072 | int err; | |
1073 | struct ceph_fsid fsid; | |
1074 | ||
1075 | dout("handle_map have %u\n", osdc->osdmap ? osdc->osdmap->epoch : 0); | |
1076 | p = msg->front.iov_base; | |
1077 | end = p + msg->front.iov_len; | |
1078 | ||
1079 | /* verify fsid */ | |
1080 | ceph_decode_need(&p, end, sizeof(fsid), bad); | |
1081 | ceph_decode_copy(&p, &fsid, sizeof(fsid)); | |
0743304d SW |
1082 | if (ceph_check_fsid(osdc->client, &fsid) < 0) |
1083 | return; | |
f24e9980 SW |
1084 | |
1085 | down_write(&osdc->map_sem); | |
1086 | ||
1087 | /* incremental maps */ | |
1088 | ceph_decode_32_safe(&p, end, nr_maps, bad); | |
1089 | dout(" %d inc maps\n", nr_maps); | |
1090 | while (nr_maps > 0) { | |
1091 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); | |
c89136ea SW |
1092 | epoch = ceph_decode_32(&p); |
1093 | maplen = ceph_decode_32(&p); | |
f24e9980 SW |
1094 | ceph_decode_need(&p, end, maplen, bad); |
1095 | next = p + maplen; | |
1096 | if (osdc->osdmap && osdc->osdmap->epoch+1 == epoch) { | |
1097 | dout("applying incremental map %u len %d\n", | |
1098 | epoch, maplen); | |
1099 | newmap = osdmap_apply_incremental(&p, next, | |
1100 | osdc->osdmap, | |
1101 | osdc->client->msgr); | |
1102 | if (IS_ERR(newmap)) { | |
1103 | err = PTR_ERR(newmap); | |
1104 | goto bad; | |
1105 | } | |
30dc6381 | 1106 | BUG_ON(!newmap); |
f24e9980 SW |
1107 | if (newmap != osdc->osdmap) { |
1108 | ceph_osdmap_destroy(osdc->osdmap); | |
1109 | osdc->osdmap = newmap; | |
1110 | } | |
1111 | } else { | |
1112 | dout("ignoring incremental map %u len %d\n", | |
1113 | epoch, maplen); | |
1114 | } | |
1115 | p = next; | |
1116 | nr_maps--; | |
1117 | } | |
1118 | if (newmap) | |
1119 | goto done; | |
1120 | ||
1121 | /* full maps */ | |
1122 | ceph_decode_32_safe(&p, end, nr_maps, bad); | |
1123 | dout(" %d full maps\n", nr_maps); | |
1124 | while (nr_maps) { | |
1125 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); | |
c89136ea SW |
1126 | epoch = ceph_decode_32(&p); |
1127 | maplen = ceph_decode_32(&p); | |
f24e9980 SW |
1128 | ceph_decode_need(&p, end, maplen, bad); |
1129 | if (nr_maps > 1) { | |
1130 | dout("skipping non-latest full map %u len %d\n", | |
1131 | epoch, maplen); | |
1132 | } else if (osdc->osdmap && osdc->osdmap->epoch >= epoch) { | |
1133 | dout("skipping full map %u len %d, " | |
1134 | "older than our %u\n", epoch, maplen, | |
1135 | osdc->osdmap->epoch); | |
1136 | } else { | |
1137 | dout("taking full map %u len %d\n", epoch, maplen); | |
1138 | newmap = osdmap_decode(&p, p+maplen); | |
1139 | if (IS_ERR(newmap)) { | |
1140 | err = PTR_ERR(newmap); | |
1141 | goto bad; | |
1142 | } | |
30dc6381 | 1143 | BUG_ON(!newmap); |
f24e9980 SW |
1144 | oldmap = osdc->osdmap; |
1145 | osdc->osdmap = newmap; | |
1146 | if (oldmap) | |
1147 | ceph_osdmap_destroy(oldmap); | |
1148 | } | |
1149 | p += maplen; | |
1150 | nr_maps--; | |
1151 | } | |
1152 | ||
1153 | done: | |
1154 | downgrade_write(&osdc->map_sem); | |
1155 | ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); | |
1156 | if (newmap) | |
1157 | kick_requests(osdc, NULL); | |
1158 | up_read(&osdc->map_sem); | |
03066f23 | 1159 | wake_up_all(&osdc->client->auth_wq); |
f24e9980 SW |
1160 | return; |
1161 | ||
1162 | bad: | |
1163 | pr_err("osdc handle_map corrupt msg\n"); | |
9ec7cab1 | 1164 | ceph_msg_dump(msg); |
f24e9980 SW |
1165 | up_write(&osdc->map_sem); |
1166 | return; | |
1167 | } | |
1168 | ||
f24e9980 SW |
1169 | /* |
1170 | * Register request, send initial attempt. | |
1171 | */ | |
1172 | int ceph_osdc_start_request(struct ceph_osd_client *osdc, | |
1173 | struct ceph_osd_request *req, | |
1174 | bool nofail) | |
1175 | { | |
c1ea8823 | 1176 | int rc = 0; |
f24e9980 SW |
1177 | |
1178 | req->r_request->pages = req->r_pages; | |
1179 | req->r_request->nr_pages = req->r_num_pages; | |
1180 | ||
1181 | register_request(osdc, req); | |
1182 | ||
1183 | down_read(&osdc->map_sem); | |
1184 | mutex_lock(&osdc->request_mutex); | |
c1ea8823 SW |
1185 | /* |
1186 | * a racing kick_requests() may have sent the message for us | |
1187 | * while we dropped request_mutex above, so only send now if | |
1188 | * the request still han't been touched yet. | |
1189 | */ | |
1190 | if (req->r_sent == 0) { | |
1191 | rc = __send_request(osdc, req); | |
1192 | if (rc) { | |
1193 | if (nofail) { | |
1194 | dout("osdc_start_request failed send, " | |
1195 | " marking %lld\n", req->r_tid); | |
1196 | req->r_resend = true; | |
1197 | rc = 0; | |
1198 | } else { | |
1199 | __unregister_request(osdc, req); | |
1200 | } | |
f24e9980 SW |
1201 | } |
1202 | } | |
1203 | mutex_unlock(&osdc->request_mutex); | |
1204 | up_read(&osdc->map_sem); | |
1205 | return rc; | |
1206 | } | |
1207 | ||
1208 | /* | |
1209 | * wait for a request to complete | |
1210 | */ | |
1211 | int ceph_osdc_wait_request(struct ceph_osd_client *osdc, | |
1212 | struct ceph_osd_request *req) | |
1213 | { | |
1214 | int rc; | |
1215 | ||
1216 | rc = wait_for_completion_interruptible(&req->r_completion); | |
1217 | if (rc < 0) { | |
1218 | mutex_lock(&osdc->request_mutex); | |
1219 | __cancel_request(req); | |
529cfcc4 | 1220 | __unregister_request(osdc, req); |
f24e9980 | 1221 | mutex_unlock(&osdc->request_mutex); |
529cfcc4 | 1222 | dout("wait_request tid %llu canceled/timed out\n", req->r_tid); |
f24e9980 SW |
1223 | return rc; |
1224 | } | |
1225 | ||
1226 | dout("wait_request tid %llu result %d\n", req->r_tid, req->r_result); | |
1227 | return req->r_result; | |
1228 | } | |
1229 | ||
1230 | /* | |
1231 | * sync - wait for all in-flight requests to flush. avoid starvation. | |
1232 | */ | |
1233 | void ceph_osdc_sync(struct ceph_osd_client *osdc) | |
1234 | { | |
1235 | struct ceph_osd_request *req; | |
1236 | u64 last_tid, next_tid = 0; | |
1237 | ||
1238 | mutex_lock(&osdc->request_mutex); | |
1239 | last_tid = osdc->last_tid; | |
1240 | while (1) { | |
1241 | req = __lookup_request_ge(osdc, next_tid); | |
1242 | if (!req) | |
1243 | break; | |
1244 | if (req->r_tid > last_tid) | |
1245 | break; | |
1246 | ||
1247 | next_tid = req->r_tid + 1; | |
1248 | if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) | |
1249 | continue; | |
1250 | ||
1251 | ceph_osdc_get_request(req); | |
1252 | mutex_unlock(&osdc->request_mutex); | |
1253 | dout("sync waiting on tid %llu (last is %llu)\n", | |
1254 | req->r_tid, last_tid); | |
1255 | wait_for_completion(&req->r_safe_completion); | |
1256 | mutex_lock(&osdc->request_mutex); | |
1257 | ceph_osdc_put_request(req); | |
1258 | } | |
1259 | mutex_unlock(&osdc->request_mutex); | |
1260 | dout("sync done (thru tid %llu)\n", last_tid); | |
1261 | } | |
1262 | ||
1263 | /* | |
1264 | * init, shutdown | |
1265 | */ | |
1266 | int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) | |
1267 | { | |
1268 | int err; | |
1269 | ||
1270 | dout("init\n"); | |
1271 | osdc->client = client; | |
1272 | osdc->osdmap = NULL; | |
1273 | init_rwsem(&osdc->map_sem); | |
1274 | init_completion(&osdc->map_waiters); | |
1275 | osdc->last_requested_map = 0; | |
1276 | mutex_init(&osdc->request_mutex); | |
f24e9980 SW |
1277 | osdc->last_tid = 0; |
1278 | osdc->osds = RB_ROOT; | |
f5a2041b | 1279 | INIT_LIST_HEAD(&osdc->osd_lru); |
f24e9980 | 1280 | osdc->requests = RB_ROOT; |
422d2cb8 | 1281 | INIT_LIST_HEAD(&osdc->req_lru); |
f24e9980 SW |
1282 | osdc->num_requests = 0; |
1283 | INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); | |
f5a2041b YS |
1284 | INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); |
1285 | ||
1286 | schedule_delayed_work(&osdc->osds_timeout_work, | |
1287 | round_jiffies_relative(osdc->client->mount_args->osd_idle_ttl * HZ)); | |
f24e9980 | 1288 | |
5f44f142 | 1289 | err = -ENOMEM; |
f24e9980 SW |
1290 | osdc->req_mempool = mempool_create_kmalloc_pool(10, |
1291 | sizeof(struct ceph_osd_request)); | |
1292 | if (!osdc->req_mempool) | |
5f44f142 | 1293 | goto out; |
f24e9980 | 1294 | |
4f48280e SW |
1295 | err = ceph_msgpool_init(&osdc->msgpool_op, OSD_OP_FRONT_LEN, 10, true, |
1296 | "osd_op"); | |
f24e9980 | 1297 | if (err < 0) |
5f44f142 | 1298 | goto out_mempool; |
c16e7869 | 1299 | err = ceph_msgpool_init(&osdc->msgpool_op_reply, |
4f48280e SW |
1300 | OSD_OPREPLY_FRONT_LEN, 10, true, |
1301 | "osd_op_reply"); | |
c16e7869 SW |
1302 | if (err < 0) |
1303 | goto out_msgpool; | |
f24e9980 | 1304 | return 0; |
5f44f142 | 1305 | |
c16e7869 SW |
1306 | out_msgpool: |
1307 | ceph_msgpool_destroy(&osdc->msgpool_op); | |
5f44f142 SW |
1308 | out_mempool: |
1309 | mempool_destroy(osdc->req_mempool); | |
1310 | out: | |
1311 | return err; | |
f24e9980 SW |
1312 | } |
1313 | ||
1314 | void ceph_osdc_stop(struct ceph_osd_client *osdc) | |
1315 | { | |
1316 | cancel_delayed_work_sync(&osdc->timeout_work); | |
f5a2041b | 1317 | cancel_delayed_work_sync(&osdc->osds_timeout_work); |
f24e9980 SW |
1318 | if (osdc->osdmap) { |
1319 | ceph_osdmap_destroy(osdc->osdmap); | |
1320 | osdc->osdmap = NULL; | |
1321 | } | |
f5a2041b | 1322 | remove_old_osds(osdc, 1); |
f24e9980 SW |
1323 | mempool_destroy(osdc->req_mempool); |
1324 | ceph_msgpool_destroy(&osdc->msgpool_op); | |
c16e7869 | 1325 | ceph_msgpool_destroy(&osdc->msgpool_op_reply); |
f24e9980 SW |
1326 | } |
1327 | ||
1328 | /* | |
1329 | * Read some contiguous pages. If we cross a stripe boundary, shorten | |
1330 | * *plen. Return number of bytes read, or error. | |
1331 | */ | |
1332 | int ceph_osdc_readpages(struct ceph_osd_client *osdc, | |
1333 | struct ceph_vino vino, struct ceph_file_layout *layout, | |
1334 | u64 off, u64 *plen, | |
1335 | u32 truncate_seq, u64 truncate_size, | |
1336 | struct page **pages, int num_pages) | |
1337 | { | |
1338 | struct ceph_osd_request *req; | |
1339 | int rc = 0; | |
1340 | ||
1341 | dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, | |
1342 | vino.snap, off, *plen); | |
1343 | req = ceph_osdc_new_request(osdc, layout, vino, off, plen, | |
1344 | CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, | |
1345 | NULL, 0, truncate_seq, truncate_size, NULL, | |
1346 | false, 1); | |
a79832f2 SW |
1347 | if (!req) |
1348 | return -ENOMEM; | |
f24e9980 SW |
1349 | |
1350 | /* it may be a short read due to an object boundary */ | |
1351 | req->r_pages = pages; | |
f24e9980 SW |
1352 | |
1353 | dout("readpages final extent is %llu~%llu (%d pages)\n", | |
1354 | off, *plen, req->r_num_pages); | |
1355 | ||
1356 | rc = ceph_osdc_start_request(osdc, req, false); | |
1357 | if (!rc) | |
1358 | rc = ceph_osdc_wait_request(osdc, req); | |
1359 | ||
1360 | ceph_osdc_put_request(req); | |
1361 | dout("readpages result %d\n", rc); | |
1362 | return rc; | |
1363 | } | |
1364 | ||
1365 | /* | |
1366 | * do a synchronous write on N pages | |
1367 | */ | |
1368 | int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, | |
1369 | struct ceph_file_layout *layout, | |
1370 | struct ceph_snap_context *snapc, | |
1371 | u64 off, u64 len, | |
1372 | u32 truncate_seq, u64 truncate_size, | |
1373 | struct timespec *mtime, | |
1374 | struct page **pages, int num_pages, | |
1375 | int flags, int do_sync, bool nofail) | |
1376 | { | |
1377 | struct ceph_osd_request *req; | |
1378 | int rc = 0; | |
1379 | ||
1380 | BUG_ON(vino.snap != CEPH_NOSNAP); | |
1381 | req = ceph_osdc_new_request(osdc, layout, vino, off, &len, | |
1382 | CEPH_OSD_OP_WRITE, | |
1383 | flags | CEPH_OSD_FLAG_ONDISK | | |
1384 | CEPH_OSD_FLAG_WRITE, | |
1385 | snapc, do_sync, | |
1386 | truncate_seq, truncate_size, mtime, | |
1387 | nofail, 1); | |
a79832f2 SW |
1388 | if (!req) |
1389 | return -ENOMEM; | |
f24e9980 SW |
1390 | |
1391 | /* it may be a short write due to an object boundary */ | |
1392 | req->r_pages = pages; | |
f24e9980 SW |
1393 | dout("writepages %llu~%llu (%d pages)\n", off, len, |
1394 | req->r_num_pages); | |
1395 | ||
1396 | rc = ceph_osdc_start_request(osdc, req, nofail); | |
1397 | if (!rc) | |
1398 | rc = ceph_osdc_wait_request(osdc, req); | |
1399 | ||
1400 | ceph_osdc_put_request(req); | |
1401 | if (rc == 0) | |
1402 | rc = len; | |
1403 | dout("writepages result %d\n", rc); | |
1404 | return rc; | |
1405 | } | |
1406 | ||
1407 | /* | |
1408 | * handle incoming message | |
1409 | */ | |
1410 | static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) | |
1411 | { | |
1412 | struct ceph_osd *osd = con->private; | |
32c895e7 | 1413 | struct ceph_osd_client *osdc; |
f24e9980 SW |
1414 | int type = le16_to_cpu(msg->hdr.type); |
1415 | ||
1416 | if (!osd) | |
4a32f93d | 1417 | goto out; |
32c895e7 | 1418 | osdc = osd->o_osdc; |
f24e9980 SW |
1419 | |
1420 | switch (type) { | |
1421 | case CEPH_MSG_OSD_MAP: | |
1422 | ceph_osdc_handle_map(osdc, msg); | |
1423 | break; | |
1424 | case CEPH_MSG_OSD_OPREPLY: | |
350b1c32 | 1425 | handle_reply(osdc, msg, con); |
f24e9980 SW |
1426 | break; |
1427 | ||
1428 | default: | |
1429 | pr_err("received unknown message type %d %s\n", type, | |
1430 | ceph_msg_type_name(type)); | |
1431 | } | |
4a32f93d | 1432 | out: |
f24e9980 SW |
1433 | ceph_msg_put(msg); |
1434 | } | |
1435 | ||
5b3a4db3 | 1436 | /* |
21b667f6 SW |
1437 | * lookup and return message for incoming reply. set up reply message |
1438 | * pages. | |
5b3a4db3 SW |
1439 | */ |
1440 | static struct ceph_msg *get_reply(struct ceph_connection *con, | |
2450418c YS |
1441 | struct ceph_msg_header *hdr, |
1442 | int *skip) | |
f24e9980 SW |
1443 | { |
1444 | struct ceph_osd *osd = con->private; | |
1445 | struct ceph_osd_client *osdc = osd->o_osdc; | |
2450418c | 1446 | struct ceph_msg *m; |
0547a9b3 | 1447 | struct ceph_osd_request *req; |
5b3a4db3 SW |
1448 | int front = le32_to_cpu(hdr->front_len); |
1449 | int data_len = le32_to_cpu(hdr->data_len); | |
0547a9b3 | 1450 | u64 tid; |
f24e9980 | 1451 | |
0547a9b3 YS |
1452 | tid = le64_to_cpu(hdr->tid); |
1453 | mutex_lock(&osdc->request_mutex); | |
1454 | req = __lookup_request(osdc, tid); | |
1455 | if (!req) { | |
1456 | *skip = 1; | |
1457 | m = NULL; | |
c16e7869 | 1458 | pr_info("get_reply unknown tid %llu from osd%d\n", tid, |
5b3a4db3 | 1459 | osd->o_osd); |
0547a9b3 YS |
1460 | goto out; |
1461 | } | |
c16e7869 SW |
1462 | |
1463 | if (req->r_con_filling_msg) { | |
1464 | dout("get_reply revoking msg %p from old con %p\n", | |
1465 | req->r_reply, req->r_con_filling_msg); | |
1466 | ceph_con_revoke_message(req->r_con_filling_msg, req->r_reply); | |
1467 | ceph_con_put(req->r_con_filling_msg); | |
6f46cb29 | 1468 | req->r_con_filling_msg = NULL; |
0547a9b3 YS |
1469 | } |
1470 | ||
c16e7869 SW |
1471 | if (front > req->r_reply->front.iov_len) { |
1472 | pr_warning("get_reply front %d > preallocated %d\n", | |
1473 | front, (int)req->r_reply->front.iov_len); | |
34d23762 | 1474 | m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, GFP_NOFS); |
a79832f2 | 1475 | if (!m) |
c16e7869 SW |
1476 | goto out; |
1477 | ceph_msg_put(req->r_reply); | |
1478 | req->r_reply = m; | |
1479 | } | |
1480 | m = ceph_msg_get(req->r_reply); | |
1481 | ||
0547a9b3 | 1482 | if (data_len > 0) { |
21b667f6 SW |
1483 | unsigned data_off = le16_to_cpu(hdr->data_off); |
1484 | int want = calc_pages_for(data_off & ~PAGE_MASK, data_len); | |
1485 | ||
1486 | if (unlikely(req->r_num_pages < want)) { | |
1487 | pr_warning("tid %lld reply %d > expected %d pages\n", | |
1488 | tid, want, m->nr_pages); | |
0547a9b3 YS |
1489 | *skip = 1; |
1490 | ceph_msg_put(m); | |
a79832f2 | 1491 | m = NULL; |
21b667f6 | 1492 | goto out; |
0547a9b3 | 1493 | } |
21b667f6 SW |
1494 | m->pages = req->r_pages; |
1495 | m->nr_pages = req->r_num_pages; | |
0547a9b3 | 1496 | } |
5b3a4db3 | 1497 | *skip = 0; |
c16e7869 SW |
1498 | req->r_con_filling_msg = ceph_con_get(con); |
1499 | dout("get_reply tid %lld %p\n", tid, m); | |
0547a9b3 YS |
1500 | |
1501 | out: | |
1502 | mutex_unlock(&osdc->request_mutex); | |
2450418c | 1503 | return m; |
5b3a4db3 SW |
1504 | |
1505 | } | |
1506 | ||
1507 | static struct ceph_msg *alloc_msg(struct ceph_connection *con, | |
1508 | struct ceph_msg_header *hdr, | |
1509 | int *skip) | |
1510 | { | |
1511 | struct ceph_osd *osd = con->private; | |
1512 | int type = le16_to_cpu(hdr->type); | |
1513 | int front = le32_to_cpu(hdr->front_len); | |
1514 | ||
1515 | switch (type) { | |
1516 | case CEPH_MSG_OSD_MAP: | |
34d23762 | 1517 | return ceph_msg_new(type, front, GFP_NOFS); |
5b3a4db3 SW |
1518 | case CEPH_MSG_OSD_OPREPLY: |
1519 | return get_reply(con, hdr, skip); | |
1520 | default: | |
1521 | pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, | |
1522 | osd->o_osd); | |
1523 | *skip = 1; | |
1524 | return NULL; | |
1525 | } | |
f24e9980 SW |
1526 | } |
1527 | ||
1528 | /* | |
1529 | * Wrappers to refcount containing ceph_osd struct | |
1530 | */ | |
1531 | static struct ceph_connection *get_osd_con(struct ceph_connection *con) | |
1532 | { | |
1533 | struct ceph_osd *osd = con->private; | |
1534 | if (get_osd(osd)) | |
1535 | return con; | |
1536 | return NULL; | |
1537 | } | |
1538 | ||
1539 | static void put_osd_con(struct ceph_connection *con) | |
1540 | { | |
1541 | struct ceph_osd *osd = con->private; | |
1542 | put_osd(osd); | |
1543 | } | |
1544 | ||
4e7a5dcd SW |
1545 | /* |
1546 | * authentication | |
1547 | */ | |
1548 | static int get_authorizer(struct ceph_connection *con, | |
213c99ee SW |
1549 | void **buf, int *len, int *proto, |
1550 | void **reply_buf, int *reply_len, int force_new) | |
4e7a5dcd SW |
1551 | { |
1552 | struct ceph_osd *o = con->private; | |
1553 | struct ceph_osd_client *osdc = o->o_osdc; | |
1554 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
1555 | int ret = 0; | |
1556 | ||
1557 | if (force_new && o->o_authorizer) { | |
1558 | ac->ops->destroy_authorizer(ac, o->o_authorizer); | |
1559 | o->o_authorizer = NULL; | |
1560 | } | |
1561 | if (o->o_authorizer == NULL) { | |
1562 | ret = ac->ops->create_authorizer( | |
1563 | ac, CEPH_ENTITY_TYPE_OSD, | |
1564 | &o->o_authorizer, | |
1565 | &o->o_authorizer_buf, | |
1566 | &o->o_authorizer_buf_len, | |
1567 | &o->o_authorizer_reply_buf, | |
1568 | &o->o_authorizer_reply_buf_len); | |
1569 | if (ret) | |
213c99ee | 1570 | return ret; |
4e7a5dcd SW |
1571 | } |
1572 | ||
1573 | *proto = ac->protocol; | |
1574 | *buf = o->o_authorizer_buf; | |
1575 | *len = o->o_authorizer_buf_len; | |
1576 | *reply_buf = o->o_authorizer_reply_buf; | |
1577 | *reply_len = o->o_authorizer_reply_buf_len; | |
1578 | return 0; | |
1579 | } | |
1580 | ||
1581 | ||
1582 | static int verify_authorizer_reply(struct ceph_connection *con, int len) | |
1583 | { | |
1584 | struct ceph_osd *o = con->private; | |
1585 | struct ceph_osd_client *osdc = o->o_osdc; | |
1586 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
1587 | ||
1588 | return ac->ops->verify_authorizer_reply(ac, o->o_authorizer, len); | |
1589 | } | |
1590 | ||
9bd2e6f8 SW |
1591 | static int invalidate_authorizer(struct ceph_connection *con) |
1592 | { | |
1593 | struct ceph_osd *o = con->private; | |
1594 | struct ceph_osd_client *osdc = o->o_osdc; | |
1595 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
1596 | ||
1597 | if (ac->ops->invalidate_authorizer) | |
1598 | ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); | |
1599 | ||
1600 | return ceph_monc_validate_auth(&osdc->client->monc); | |
1601 | } | |
4e7a5dcd | 1602 | |
9e32789f | 1603 | static const struct ceph_connection_operations osd_con_ops = { |
f24e9980 SW |
1604 | .get = get_osd_con, |
1605 | .put = put_osd_con, | |
1606 | .dispatch = dispatch, | |
4e7a5dcd SW |
1607 | .get_authorizer = get_authorizer, |
1608 | .verify_authorizer_reply = verify_authorizer_reply, | |
9bd2e6f8 | 1609 | .invalidate_authorizer = invalidate_authorizer, |
f24e9980 | 1610 | .alloc_msg = alloc_msg, |
81b024e7 | 1611 | .fault = osd_reset, |
f24e9980 | 1612 | }; |