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3d14c5d2 | 1 | #include <linux/ceph/ceph_debug.h> |
f24e9980 | 2 | |
3d14c5d2 | 3 | #include <linux/module.h> |
f24e9980 SW |
4 | #include <linux/err.h> |
5 | #include <linux/highmem.h> | |
6 | #include <linux/mm.h> | |
7 | #include <linux/pagemap.h> | |
8 | #include <linux/slab.h> | |
9 | #include <linux/uaccess.h> | |
68b4476b YS |
10 | #ifdef CONFIG_BLOCK |
11 | #include <linux/bio.h> | |
12 | #endif | |
f24e9980 | 13 | |
3d14c5d2 YS |
14 | #include <linux/ceph/libceph.h> |
15 | #include <linux/ceph/osd_client.h> | |
16 | #include <linux/ceph/messenger.h> | |
17 | #include <linux/ceph/decode.h> | |
18 | #include <linux/ceph/auth.h> | |
19 | #include <linux/ceph/pagelist.h> | |
f24e9980 | 20 | |
c16e7869 SW |
21 | #define OSD_OP_FRONT_LEN 4096 |
22 | #define OSD_OPREPLY_FRONT_LEN 512 | |
0d59ab81 | 23 | |
9e32789f | 24 | static const struct ceph_connection_operations osd_con_ops; |
f24e9980 | 25 | |
f9d25199 | 26 | static void __send_queued(struct ceph_osd_client *osdc); |
6f6c7006 | 27 | static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd); |
a40c4f10 YS |
28 | static void __register_request(struct ceph_osd_client *osdc, |
29 | struct ceph_osd_request *req); | |
30 | static void __unregister_linger_request(struct ceph_osd_client *osdc, | |
31 | struct ceph_osd_request *req); | |
56e925b6 SW |
32 | static void __send_request(struct ceph_osd_client *osdc, |
33 | struct ceph_osd_request *req); | |
f24e9980 SW |
34 | |
35 | /* | |
36 | * Implement client access to distributed object storage cluster. | |
37 | * | |
38 | * All data objects are stored within a cluster/cloud of OSDs, or | |
39 | * "object storage devices." (Note that Ceph OSDs have _nothing_ to | |
40 | * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply | |
41 | * remote daemons serving up and coordinating consistent and safe | |
42 | * access to storage. | |
43 | * | |
44 | * Cluster membership and the mapping of data objects onto storage devices | |
45 | * are described by the osd map. | |
46 | * | |
47 | * We keep track of pending OSD requests (read, write), resubmit | |
48 | * requests to different OSDs when the cluster topology/data layout | |
49 | * change, or retry the affected requests when the communications | |
50 | * channel with an OSD is reset. | |
51 | */ | |
52 | ||
53 | /* | |
54 | * calculate the mapping of a file extent onto an object, and fill out the | |
55 | * request accordingly. shorten extent as necessary if it crosses an | |
56 | * object boundary. | |
57 | * | |
58 | * fill osd op in request message. | |
59 | */ | |
dbe0fc41 | 60 | static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, |
a19dadfb | 61 | u64 *objnum, u64 *objoff, u64 *objlen) |
f24e9980 | 62 | { |
60e56f13 | 63 | u64 orig_len = *plen; |
d63b77f4 | 64 | int r; |
f24e9980 | 65 | |
60e56f13 | 66 | /* object extent? */ |
75d1c941 AE |
67 | r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, |
68 | objoff, objlen); | |
d63b77f4 SW |
69 | if (r < 0) |
70 | return r; | |
75d1c941 AE |
71 | if (*objlen < orig_len) { |
72 | *plen = *objlen; | |
60e56f13 AE |
73 | dout(" skipping last %llu, final file extent %llu~%llu\n", |
74 | orig_len - *plen, off, *plen); | |
75 | } | |
76 | ||
75d1c941 | 77 | dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); |
f24e9980 | 78 | |
3ff5f385 | 79 | return 0; |
f24e9980 SW |
80 | } |
81 | ||
c54d47bf AE |
82 | static void ceph_osd_data_init(struct ceph_osd_data *osd_data) |
83 | { | |
84 | memset(osd_data, 0, sizeof (*osd_data)); | |
85 | osd_data->type = CEPH_OSD_DATA_TYPE_NONE; | |
86 | } | |
87 | ||
43bfe5de AE |
88 | void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data, |
89 | struct page **pages, u64 length, u32 alignment, | |
90 | bool pages_from_pool, bool own_pages) | |
91 | { | |
92 | osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; | |
93 | osd_data->pages = pages; | |
94 | osd_data->length = length; | |
95 | osd_data->alignment = alignment; | |
96 | osd_data->pages_from_pool = pages_from_pool; | |
97 | osd_data->own_pages = own_pages; | |
98 | } | |
99 | EXPORT_SYMBOL(ceph_osd_data_pages_init); | |
100 | ||
101 | void ceph_osd_data_pagelist_init(struct ceph_osd_data *osd_data, | |
102 | struct ceph_pagelist *pagelist) | |
103 | { | |
104 | osd_data->type = CEPH_OSD_DATA_TYPE_PAGELIST; | |
105 | osd_data->pagelist = pagelist; | |
106 | } | |
107 | EXPORT_SYMBOL(ceph_osd_data_pagelist_init); | |
108 | ||
109 | #ifdef CONFIG_BLOCK | |
110 | void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, | |
111 | struct bio *bio, size_t bio_length) | |
112 | { | |
113 | osd_data->type = CEPH_OSD_DATA_TYPE_BIO; | |
114 | osd_data->bio = bio; | |
115 | osd_data->bio_length = bio_length; | |
116 | } | |
117 | EXPORT_SYMBOL(ceph_osd_data_bio_init); | |
118 | #endif /* CONFIG_BLOCK */ | |
119 | ||
23c08a9c AE |
120 | static u64 ceph_osd_data_length(struct ceph_osd_data *osd_data) |
121 | { | |
122 | switch (osd_data->type) { | |
123 | case CEPH_OSD_DATA_TYPE_NONE: | |
124 | return 0; | |
125 | case CEPH_OSD_DATA_TYPE_PAGES: | |
126 | return osd_data->length; | |
127 | case CEPH_OSD_DATA_TYPE_PAGELIST: | |
128 | return (u64)osd_data->pagelist->length; | |
129 | #ifdef CONFIG_BLOCK | |
130 | case CEPH_OSD_DATA_TYPE_BIO: | |
131 | return (u64)osd_data->bio_length; | |
132 | #endif /* CONFIG_BLOCK */ | |
133 | default: | |
134 | WARN(true, "unrecognized data type %d\n", (int)osd_data->type); | |
135 | return 0; | |
136 | } | |
137 | } | |
138 | ||
c54d47bf AE |
139 | static void ceph_osd_data_release(struct ceph_osd_data *osd_data) |
140 | { | |
141 | if (osd_data->type != CEPH_OSD_DATA_TYPE_PAGES) | |
142 | return; | |
143 | ||
144 | if (osd_data->own_pages) { | |
145 | int num_pages; | |
146 | ||
147 | num_pages = calc_pages_for((u64)osd_data->alignment, | |
148 | (u64)osd_data->length); | |
149 | ceph_release_page_vector(osd_data->pages, num_pages); | |
150 | } | |
151 | } | |
152 | ||
f24e9980 SW |
153 | /* |
154 | * requests | |
155 | */ | |
415e49a9 | 156 | void ceph_osdc_release_request(struct kref *kref) |
f24e9980 | 157 | { |
c54d47bf | 158 | struct ceph_osd_request *req; |
415e49a9 | 159 | |
c54d47bf | 160 | req = container_of(kref, struct ceph_osd_request, r_kref); |
415e49a9 SW |
161 | if (req->r_request) |
162 | ceph_msg_put(req->r_request); | |
ace6d3a9 | 163 | if (req->r_reply) { |
8921d114 | 164 | ceph_msg_revoke_incoming(req->r_reply); |
ab8cb34a | 165 | ceph_msg_put(req->r_reply); |
ace6d3a9 | 166 | } |
0fff87ec | 167 | |
c54d47bf AE |
168 | ceph_osd_data_release(&req->r_data_in); |
169 | ceph_osd_data_release(&req->r_data_out); | |
0fff87ec | 170 | |
415e49a9 SW |
171 | ceph_put_snap_context(req->r_snapc); |
172 | if (req->r_mempool) | |
173 | mempool_free(req, req->r_osdc->req_mempool); | |
174 | else | |
175 | kfree(req); | |
f24e9980 | 176 | } |
3d14c5d2 | 177 | EXPORT_SYMBOL(ceph_osdc_release_request); |
68b4476b | 178 | |
3499e8a5 | 179 | struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, |
f24e9980 | 180 | struct ceph_snap_context *snapc, |
1b83bef2 | 181 | unsigned int num_ops, |
3499e8a5 | 182 | bool use_mempool, |
54a54007 | 183 | gfp_t gfp_flags) |
f24e9980 SW |
184 | { |
185 | struct ceph_osd_request *req; | |
186 | struct ceph_msg *msg; | |
1b83bef2 SW |
187 | size_t msg_size; |
188 | ||
79528734 AE |
189 | BUILD_BUG_ON(CEPH_OSD_MAX_OP > U16_MAX); |
190 | BUG_ON(num_ops > CEPH_OSD_MAX_OP); | |
191 | ||
1b83bef2 SW |
192 | msg_size = 4 + 4 + 8 + 8 + 4+8; |
193 | msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ | |
194 | msg_size += 1 + 8 + 4 + 4; /* pg_t */ | |
195 | msg_size += 4 + MAX_OBJ_NAME_SIZE; | |
196 | msg_size += 2 + num_ops*sizeof(struct ceph_osd_op); | |
197 | msg_size += 8; /* snapid */ | |
198 | msg_size += 8; /* snap_seq */ | |
199 | msg_size += 8 * (snapc ? snapc->num_snaps : 0); /* snaps */ | |
200 | msg_size += 4; | |
f24e9980 SW |
201 | |
202 | if (use_mempool) { | |
3499e8a5 | 203 | req = mempool_alloc(osdc->req_mempool, gfp_flags); |
f24e9980 SW |
204 | memset(req, 0, sizeof(*req)); |
205 | } else { | |
3499e8a5 | 206 | req = kzalloc(sizeof(*req), gfp_flags); |
f24e9980 SW |
207 | } |
208 | if (req == NULL) | |
a79832f2 | 209 | return NULL; |
f24e9980 | 210 | |
f24e9980 SW |
211 | req->r_osdc = osdc; |
212 | req->r_mempool = use_mempool; | |
79528734 | 213 | req->r_num_ops = num_ops; |
68b4476b | 214 | |
415e49a9 | 215 | kref_init(&req->r_kref); |
f24e9980 SW |
216 | init_completion(&req->r_completion); |
217 | init_completion(&req->r_safe_completion); | |
a978fa20 | 218 | RB_CLEAR_NODE(&req->r_node); |
f24e9980 | 219 | INIT_LIST_HEAD(&req->r_unsafe_item); |
a40c4f10 YS |
220 | INIT_LIST_HEAD(&req->r_linger_item); |
221 | INIT_LIST_HEAD(&req->r_linger_osd); | |
935b639a | 222 | INIT_LIST_HEAD(&req->r_req_lru_item); |
cd43045c SW |
223 | INIT_LIST_HEAD(&req->r_osd_item); |
224 | ||
c16e7869 SW |
225 | /* create reply message */ |
226 | if (use_mempool) | |
227 | msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); | |
228 | else | |
229 | msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, | |
b61c2763 | 230 | OSD_OPREPLY_FRONT_LEN, gfp_flags, true); |
a79832f2 | 231 | if (!msg) { |
c16e7869 | 232 | ceph_osdc_put_request(req); |
a79832f2 | 233 | return NULL; |
c16e7869 SW |
234 | } |
235 | req->r_reply = msg; | |
236 | ||
c54d47bf AE |
237 | ceph_osd_data_init(&req->r_data_in); |
238 | ceph_osd_data_init(&req->r_data_out); | |
d50b409f | 239 | |
c16e7869 | 240 | /* create request message; allow space for oid */ |
f24e9980 | 241 | if (use_mempool) |
8f3bc053 | 242 | msg = ceph_msgpool_get(&osdc->msgpool_op, 0); |
f24e9980 | 243 | else |
b61c2763 | 244 | msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp_flags, true); |
a79832f2 | 245 | if (!msg) { |
f24e9980 | 246 | ceph_osdc_put_request(req); |
a79832f2 | 247 | return NULL; |
f24e9980 | 248 | } |
68b4476b | 249 | |
f24e9980 | 250 | memset(msg->front.iov_base, 0, msg->front.iov_len); |
3499e8a5 YS |
251 | |
252 | req->r_request = msg; | |
3499e8a5 YS |
253 | |
254 | return req; | |
255 | } | |
3d14c5d2 | 256 | EXPORT_SYMBOL(ceph_osdc_alloc_request); |
3499e8a5 | 257 | |
a8dd0a37 | 258 | static bool osd_req_opcode_valid(u16 opcode) |
68b4476b | 259 | { |
a8dd0a37 | 260 | switch (opcode) { |
68b4476b | 261 | case CEPH_OSD_OP_READ: |
a8dd0a37 | 262 | case CEPH_OSD_OP_STAT: |
4c46459c AE |
263 | case CEPH_OSD_OP_MAPEXT: |
264 | case CEPH_OSD_OP_MASKTRUNC: | |
265 | case CEPH_OSD_OP_SPARSE_READ: | |
a9f36c3e | 266 | case CEPH_OSD_OP_NOTIFY: |
a8dd0a37 | 267 | case CEPH_OSD_OP_NOTIFY_ACK: |
4c46459c | 268 | case CEPH_OSD_OP_ASSERT_VER: |
a8dd0a37 | 269 | case CEPH_OSD_OP_WRITE: |
4c46459c AE |
270 | case CEPH_OSD_OP_WRITEFULL: |
271 | case CEPH_OSD_OP_TRUNCATE: | |
272 | case CEPH_OSD_OP_ZERO: | |
273 | case CEPH_OSD_OP_DELETE: | |
274 | case CEPH_OSD_OP_APPEND: | |
a8dd0a37 | 275 | case CEPH_OSD_OP_STARTSYNC: |
4c46459c AE |
276 | case CEPH_OSD_OP_SETTRUNC: |
277 | case CEPH_OSD_OP_TRIMTRUNC: | |
278 | case CEPH_OSD_OP_TMAPUP: | |
279 | case CEPH_OSD_OP_TMAPPUT: | |
280 | case CEPH_OSD_OP_TMAPGET: | |
281 | case CEPH_OSD_OP_CREATE: | |
a9f36c3e | 282 | case CEPH_OSD_OP_ROLLBACK: |
a8dd0a37 | 283 | case CEPH_OSD_OP_WATCH: |
4c46459c AE |
284 | case CEPH_OSD_OP_OMAPGETKEYS: |
285 | case CEPH_OSD_OP_OMAPGETVALS: | |
286 | case CEPH_OSD_OP_OMAPGETHEADER: | |
287 | case CEPH_OSD_OP_OMAPGETVALSBYKEYS: | |
4c46459c AE |
288 | case CEPH_OSD_OP_OMAPSETVALS: |
289 | case CEPH_OSD_OP_OMAPSETHEADER: | |
290 | case CEPH_OSD_OP_OMAPCLEAR: | |
291 | case CEPH_OSD_OP_OMAPRMKEYS: | |
292 | case CEPH_OSD_OP_OMAP_CMP: | |
293 | case CEPH_OSD_OP_CLONERANGE: | |
294 | case CEPH_OSD_OP_ASSERT_SRC_VERSION: | |
295 | case CEPH_OSD_OP_SRC_CMPXATTR: | |
a9f36c3e | 296 | case CEPH_OSD_OP_GETXATTR: |
4c46459c | 297 | case CEPH_OSD_OP_GETXATTRS: |
a9f36c3e AE |
298 | case CEPH_OSD_OP_CMPXATTR: |
299 | case CEPH_OSD_OP_SETXATTR: | |
4c46459c AE |
300 | case CEPH_OSD_OP_SETXATTRS: |
301 | case CEPH_OSD_OP_RESETXATTRS: | |
302 | case CEPH_OSD_OP_RMXATTR: | |
303 | case CEPH_OSD_OP_PULL: | |
304 | case CEPH_OSD_OP_PUSH: | |
305 | case CEPH_OSD_OP_BALANCEREADS: | |
306 | case CEPH_OSD_OP_UNBALANCEREADS: | |
307 | case CEPH_OSD_OP_SCRUB: | |
308 | case CEPH_OSD_OP_SCRUB_RESERVE: | |
309 | case CEPH_OSD_OP_SCRUB_UNRESERVE: | |
310 | case CEPH_OSD_OP_SCRUB_STOP: | |
311 | case CEPH_OSD_OP_SCRUB_MAP: | |
312 | case CEPH_OSD_OP_WRLOCK: | |
313 | case CEPH_OSD_OP_WRUNLOCK: | |
314 | case CEPH_OSD_OP_RDLOCK: | |
315 | case CEPH_OSD_OP_RDUNLOCK: | |
316 | case CEPH_OSD_OP_UPLOCK: | |
317 | case CEPH_OSD_OP_DNLOCK: | |
a8dd0a37 | 318 | case CEPH_OSD_OP_CALL: |
4c46459c AE |
319 | case CEPH_OSD_OP_PGLS: |
320 | case CEPH_OSD_OP_PGLS_FILTER: | |
a8dd0a37 AE |
321 | return true; |
322 | default: | |
323 | return false; | |
324 | } | |
325 | } | |
326 | ||
33803f33 AE |
327 | /* |
328 | * This is an osd op init function for opcodes that have no data or | |
329 | * other information associated with them. It also serves as a | |
330 | * common init routine for all the other init functions, below. | |
331 | */ | |
332 | void osd_req_op_init(struct ceph_osd_req_op *op, u16 opcode) | |
333 | { | |
334 | BUG_ON(!osd_req_opcode_valid(opcode)); | |
335 | ||
336 | memset(op, 0, sizeof (*op)); | |
337 | ||
338 | op->op = opcode; | |
339 | } | |
340 | ||
341 | void osd_req_op_extent_init(struct ceph_osd_req_op *op, u16 opcode, | |
342 | u64 offset, u64 length, | |
343 | u64 truncate_size, u32 truncate_seq) | |
344 | { | |
345 | size_t payload_len = 0; | |
346 | ||
347 | BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE); | |
348 | ||
349 | osd_req_op_init(op, opcode); | |
350 | ||
351 | op->extent.offset = offset; | |
352 | op->extent.length = length; | |
353 | op->extent.truncate_size = truncate_size; | |
354 | op->extent.truncate_seq = truncate_seq; | |
355 | if (opcode == CEPH_OSD_OP_WRITE) | |
356 | payload_len += length; | |
357 | ||
358 | op->payload_len = payload_len; | |
359 | } | |
360 | EXPORT_SYMBOL(osd_req_op_extent_init); | |
361 | ||
e5975c7c AE |
362 | void osd_req_op_extent_update(struct ceph_osd_req_op *op, u64 length) |
363 | { | |
364 | u64 previous = op->extent.length; | |
365 | ||
366 | if (length == previous) | |
367 | return; /* Nothing to do */ | |
368 | BUG_ON(length > previous); | |
369 | ||
370 | op->extent.length = length; | |
371 | op->payload_len -= previous - length; | |
372 | } | |
373 | EXPORT_SYMBOL(osd_req_op_extent_update); | |
374 | ||
8c042b0d AE |
375 | void osd_req_op_extent_osd_data(struct ceph_osd_req_op *op, |
376 | struct ceph_osd_data *osd_data) | |
377 | { | |
378 | op->extent.osd_data = osd_data; | |
379 | } | |
380 | EXPORT_SYMBOL(osd_req_op_extent_osd_data); | |
381 | ||
33803f33 AE |
382 | void osd_req_op_cls_init(struct ceph_osd_req_op *op, u16 opcode, |
383 | const char *class, const char *method, | |
384 | const void *request_data, size_t request_data_size) | |
385 | { | |
386 | size_t payload_len = 0; | |
387 | size_t size; | |
388 | ||
389 | BUG_ON(opcode != CEPH_OSD_OP_CALL); | |
390 | ||
391 | osd_req_op_init(op, opcode); | |
392 | ||
393 | op->cls.class_name = class; | |
394 | size = strlen(class); | |
395 | BUG_ON(size > (size_t) U8_MAX); | |
396 | op->cls.class_len = size; | |
397 | payload_len += size; | |
398 | ||
399 | op->cls.method_name = method; | |
400 | size = strlen(method); | |
401 | BUG_ON(size > (size_t) U8_MAX); | |
402 | op->cls.method_len = size; | |
403 | payload_len += size; | |
404 | ||
54d50649 | 405 | op->cls.request_data = request_data; |
33803f33 | 406 | BUG_ON(request_data_size > (size_t) U32_MAX); |
54d50649 | 407 | op->cls.request_data_len = (u32) request_data_size; |
33803f33 AE |
408 | payload_len += request_data_size; |
409 | ||
410 | op->cls.argc = 0; /* currently unused */ | |
411 | ||
412 | op->payload_len = payload_len; | |
413 | } | |
414 | EXPORT_SYMBOL(osd_req_op_cls_init); | |
415 | ||
8c042b0d AE |
416 | void osd_req_op_cls_response_data(struct ceph_osd_req_op *op, |
417 | struct ceph_osd_data *response_data) | |
418 | { | |
419 | op->cls.response_data = response_data; | |
420 | } | |
421 | EXPORT_SYMBOL(osd_req_op_cls_response_data); | |
422 | ||
33803f33 AE |
423 | void osd_req_op_watch_init(struct ceph_osd_req_op *op, u16 opcode, |
424 | u64 cookie, u64 version, int flag) | |
425 | { | |
426 | BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); | |
427 | ||
428 | osd_req_op_init(op, opcode); | |
429 | ||
430 | op->watch.cookie = cookie; | |
431 | /* op->watch.ver = version; */ /* XXX 3847 */ | |
432 | op->watch.ver = cpu_to_le64(version); | |
433 | if (opcode == CEPH_OSD_OP_WATCH && flag) | |
434 | op->watch.flag = (u8) 1; | |
435 | } | |
436 | EXPORT_SYMBOL(osd_req_op_watch_init); | |
437 | ||
a8dd0a37 | 438 | static u64 osd_req_encode_op(struct ceph_osd_request *req, |
79528734 | 439 | struct ceph_osd_op *dst, unsigned int which) |
a8dd0a37 | 440 | { |
79528734 | 441 | struct ceph_osd_req_op *src; |
54d50649 | 442 | u64 request_data_len = 0; |
a8dd0a37 AE |
443 | struct ceph_pagelist *pagelist; |
444 | ||
79528734 AE |
445 | BUG_ON(which >= req->r_num_ops); |
446 | src = &req->r_ops[which]; | |
a8dd0a37 AE |
447 | if (WARN_ON(!osd_req_opcode_valid(src->op))) { |
448 | pr_err("unrecognized osd opcode %d\n", src->op); | |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
453 | switch (src->op) { | |
454 | case CEPH_OSD_OP_STAT: | |
455 | break; | |
456 | case CEPH_OSD_OP_READ: | |
457 | case CEPH_OSD_OP_WRITE: | |
458 | if (src->op == CEPH_OSD_OP_WRITE) | |
54d50649 | 459 | request_data_len = src->extent.length; |
a8dd0a37 AE |
460 | dst->extent.offset = cpu_to_le64(src->extent.offset); |
461 | dst->extent.length = cpu_to_le64(src->extent.length); | |
462 | dst->extent.truncate_size = | |
463 | cpu_to_le64(src->extent.truncate_size); | |
464 | dst->extent.truncate_seq = | |
465 | cpu_to_le32(src->extent.truncate_seq); | |
8c042b0d AE |
466 | if (src->op == CEPH_OSD_OP_WRITE) |
467 | WARN_ON(src->extent.osd_data != &req->r_data_out); | |
468 | else | |
469 | WARN_ON(src->extent.osd_data != &req->r_data_in); | |
a8dd0a37 AE |
470 | break; |
471 | case CEPH_OSD_OP_CALL: | |
472 | pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); | |
473 | BUG_ON(!pagelist); | |
474 | ceph_pagelist_init(pagelist); | |
475 | ||
476 | dst->cls.class_len = src->cls.class_len; | |
477 | dst->cls.method_len = src->cls.method_len; | |
54d50649 | 478 | dst->cls.indata_len = cpu_to_le32(src->cls.request_data_len); |
a8dd0a37 AE |
479 | ceph_pagelist_append(pagelist, src->cls.class_name, |
480 | src->cls.class_len); | |
481 | ceph_pagelist_append(pagelist, src->cls.method_name, | |
482 | src->cls.method_len); | |
54d50649 AE |
483 | ceph_pagelist_append(pagelist, src->cls.request_data, |
484 | src->cls.request_data_len); | |
43bfe5de | 485 | ceph_osd_data_pagelist_init(&req->r_data_out, pagelist); |
8c042b0d AE |
486 | |
487 | WARN_ON(src->cls.response_data != &req->r_data_in); | |
54d50649 | 488 | request_data_len = pagelist->length; |
a8dd0a37 AE |
489 | break; |
490 | case CEPH_OSD_OP_STARTSYNC: | |
491 | break; | |
492 | case CEPH_OSD_OP_NOTIFY_ACK: | |
493 | case CEPH_OSD_OP_WATCH: | |
494 | dst->watch.cookie = cpu_to_le64(src->watch.cookie); | |
495 | dst->watch.ver = cpu_to_le64(src->watch.ver); | |
496 | dst->watch.flag = src->watch.flag; | |
497 | break; | |
498 | default: | |
4c46459c | 499 | pr_err("unsupported osd opcode %s\n", |
8f63ca2d | 500 | ceph_osd_op_name(src->op)); |
4c46459c | 501 | WARN_ON(1); |
a8dd0a37 AE |
502 | |
503 | return 0; | |
68b4476b | 504 | } |
a8dd0a37 | 505 | dst->op = cpu_to_le16(src->op); |
68b4476b | 506 | dst->payload_len = cpu_to_le32(src->payload_len); |
175face2 | 507 | |
54d50649 | 508 | return request_data_len; |
68b4476b YS |
509 | } |
510 | ||
3499e8a5 YS |
511 | /* |
512 | * build new request AND message | |
513 | * | |
514 | */ | |
79528734 AE |
515 | void ceph_osdc_build_request(struct ceph_osd_request *req, u64 off, |
516 | struct ceph_snap_context *snapc, u64 snap_id, | |
517 | struct timespec *mtime) | |
3499e8a5 YS |
518 | { |
519 | struct ceph_msg *msg = req->r_request; | |
3499e8a5 | 520 | void *p; |
1b83bef2 | 521 | size_t msg_size; |
3499e8a5 | 522 | int flags = req->r_flags; |
f44246e3 | 523 | u64 data_len; |
79528734 | 524 | unsigned int i; |
3499e8a5 | 525 | |
1b83bef2 | 526 | req->r_snapid = snap_id; |
f24e9980 SW |
527 | req->r_snapc = ceph_get_snap_context(snapc); |
528 | ||
1b83bef2 SW |
529 | /* encode request */ |
530 | msg->hdr.version = cpu_to_le16(4); | |
531 | ||
532 | p = msg->front.iov_base; | |
533 | ceph_encode_32(&p, 1); /* client_inc is always 1 */ | |
534 | req->r_request_osdmap_epoch = p; | |
535 | p += 4; | |
536 | req->r_request_flags = p; | |
537 | p += 4; | |
538 | if (req->r_flags & CEPH_OSD_FLAG_WRITE) | |
539 | ceph_encode_timespec(p, mtime); | |
540 | p += sizeof(struct ceph_timespec); | |
541 | req->r_request_reassert_version = p; | |
542 | p += sizeof(struct ceph_eversion); /* will get filled in */ | |
543 | ||
544 | /* oloc */ | |
545 | ceph_encode_8(&p, 4); | |
546 | ceph_encode_8(&p, 4); | |
547 | ceph_encode_32(&p, 8 + 4 + 4); | |
548 | req->r_request_pool = p; | |
549 | p += 8; | |
550 | ceph_encode_32(&p, -1); /* preferred */ | |
551 | ceph_encode_32(&p, 0); /* key len */ | |
552 | ||
553 | ceph_encode_8(&p, 1); | |
554 | req->r_request_pgid = p; | |
555 | p += 8 + 4; | |
556 | ceph_encode_32(&p, -1); /* preferred */ | |
557 | ||
558 | /* oid */ | |
559 | ceph_encode_32(&p, req->r_oid_len); | |
af77f26c | 560 | memcpy(p, req->r_oid, req->r_oid_len); |
1b83bef2 | 561 | dout("oid '%.*s' len %d\n", req->r_oid_len, req->r_oid, req->r_oid_len); |
af77f26c | 562 | p += req->r_oid_len; |
f24e9980 | 563 | |
175face2 | 564 | /* ops--can imply data */ |
79528734 | 565 | ceph_encode_16(&p, (u16)req->r_num_ops); |
175face2 | 566 | data_len = 0; |
79528734 AE |
567 | for (i = 0; i < req->r_num_ops; i++) { |
568 | data_len += osd_req_encode_op(req, p, i); | |
1b83bef2 SW |
569 | p += sizeof(struct ceph_osd_op); |
570 | } | |
68b4476b | 571 | |
1b83bef2 SW |
572 | /* snaps */ |
573 | ceph_encode_64(&p, req->r_snapid); | |
574 | ceph_encode_64(&p, req->r_snapc ? req->r_snapc->seq : 0); | |
575 | ceph_encode_32(&p, req->r_snapc ? req->r_snapc->num_snaps : 0); | |
576 | if (req->r_snapc) { | |
f24e9980 | 577 | for (i = 0; i < snapc->num_snaps; i++) { |
1b83bef2 | 578 | ceph_encode_64(&p, req->r_snapc->snaps[i]); |
f24e9980 SW |
579 | } |
580 | } | |
581 | ||
1b83bef2 SW |
582 | req->r_request_attempts = p; |
583 | p += 4; | |
584 | ||
175face2 | 585 | /* data */ |
0baa1bd9 AE |
586 | if (flags & CEPH_OSD_FLAG_WRITE) { |
587 | u16 data_off; | |
588 | ||
589 | /* | |
590 | * The header "data_off" is a hint to the receiver | |
591 | * allowing it to align received data into its | |
592 | * buffers such that there's no need to re-copy | |
593 | * it before writing it to disk (direct I/O). | |
594 | */ | |
595 | data_off = (u16) (off & 0xffff); | |
596 | req->r_request->hdr.data_off = cpu_to_le16(data_off); | |
597 | } | |
f44246e3 | 598 | req->r_request->hdr.data_len = cpu_to_le32(data_len); |
c5c6b19d | 599 | |
f24e9980 | 600 | BUG_ON(p > msg->front.iov_base + msg->front.iov_len); |
6f863e71 SW |
601 | msg_size = p - msg->front.iov_base; |
602 | msg->front.iov_len = msg_size; | |
603 | msg->hdr.front_len = cpu_to_le32(msg_size); | |
1b83bef2 | 604 | |
acead002 | 605 | dout("build_request msg_size was %d\n", (int)msg_size); |
3499e8a5 | 606 | } |
3d14c5d2 | 607 | EXPORT_SYMBOL(ceph_osdc_build_request); |
3499e8a5 YS |
608 | |
609 | /* | |
610 | * build new request AND message, calculate layout, and adjust file | |
611 | * extent as needed. | |
612 | * | |
613 | * if the file was recently truncated, we include information about its | |
614 | * old and new size so that the object can be updated appropriately. (we | |
615 | * avoid synchronously deleting truncated objects because it's slow.) | |
616 | * | |
617 | * if @do_sync, include a 'startsync' command so that the osd will flush | |
618 | * data quickly. | |
619 | */ | |
620 | struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, | |
621 | struct ceph_file_layout *layout, | |
622 | struct ceph_vino vino, | |
acead002 | 623 | u64 off, u64 *plen, int num_ops, |
3499e8a5 YS |
624 | int opcode, int flags, |
625 | struct ceph_snap_context *snapc, | |
3499e8a5 YS |
626 | u32 truncate_seq, |
627 | u64 truncate_size, | |
153e5167 | 628 | bool use_mempool) |
3499e8a5 | 629 | { |
68b4476b | 630 | struct ceph_osd_request *req; |
8c042b0d | 631 | struct ceph_osd_data *osd_data; |
79528734 | 632 | struct ceph_osd_req_op *op; |
75d1c941 AE |
633 | u64 objnum = 0; |
634 | u64 objoff = 0; | |
635 | u64 objlen = 0; | |
d18d1e28 AE |
636 | u32 object_size; |
637 | u64 object_base; | |
6816282d | 638 | int r; |
68b4476b | 639 | |
d18d1e28 | 640 | BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE); |
68b4476b | 641 | |
acead002 | 642 | req = ceph_osdc_alloc_request(osdc, snapc, num_ops, use_mempool, |
ae7ca4a3 | 643 | GFP_NOFS); |
4ad12621 | 644 | if (!req) |
6816282d | 645 | return ERR_PTR(-ENOMEM); |
8c042b0d AE |
646 | osd_data = opcode == CEPH_OSD_OP_WRITE ? &req->r_data_out |
647 | : &req->r_data_in; | |
79528734 | 648 | |
d178a9e7 | 649 | req->r_flags = flags; |
3499e8a5 YS |
650 | |
651 | /* calculate max write size */ | |
a19dadfb | 652 | r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen); |
3ff5f385 AE |
653 | if (r < 0) { |
654 | ceph_osdc_put_request(req); | |
6816282d | 655 | return ERR_PTR(r); |
3ff5f385 | 656 | } |
a19dadfb | 657 | |
d18d1e28 AE |
658 | object_size = le32_to_cpu(layout->fl_object_size); |
659 | object_base = off - objoff; | |
660 | if (truncate_size <= object_base) { | |
661 | truncate_size = 0; | |
662 | } else { | |
663 | truncate_size -= object_base; | |
664 | if (truncate_size > object_size) | |
665 | truncate_size = object_size; | |
a19dadfb | 666 | } |
d18d1e28 | 667 | |
79528734 AE |
668 | op = &req->r_ops[0]; |
669 | osd_req_op_extent_init(op, opcode, objoff, objlen, | |
b0270324 | 670 | truncate_size, truncate_seq); |
8c042b0d AE |
671 | osd_req_op_extent_osd_data(op, osd_data); |
672 | ||
acead002 AE |
673 | /* |
674 | * A second op in the ops array means the caller wants to | |
675 | * also issue a include a 'startsync' command so that the | |
676 | * osd will flush data quickly. | |
677 | */ | |
678 | if (num_ops > 1) | |
79528734 | 679 | osd_req_op_init(++op, CEPH_OSD_OP_STARTSYNC); |
d18d1e28 | 680 | |
3499e8a5 YS |
681 | req->r_file_layout = *layout; /* keep a copy */ |
682 | ||
75d1c941 AE |
683 | snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", |
684 | vino.ino, objnum); | |
dbe0fc41 AE |
685 | req->r_oid_len = strlen(req->r_oid); |
686 | ||
f24e9980 SW |
687 | return req; |
688 | } | |
3d14c5d2 | 689 | EXPORT_SYMBOL(ceph_osdc_new_request); |
f24e9980 SW |
690 | |
691 | /* | |
692 | * We keep osd requests in an rbtree, sorted by ->r_tid. | |
693 | */ | |
694 | static void __insert_request(struct ceph_osd_client *osdc, | |
695 | struct ceph_osd_request *new) | |
696 | { | |
697 | struct rb_node **p = &osdc->requests.rb_node; | |
698 | struct rb_node *parent = NULL; | |
699 | struct ceph_osd_request *req = NULL; | |
700 | ||
701 | while (*p) { | |
702 | parent = *p; | |
703 | req = rb_entry(parent, struct ceph_osd_request, r_node); | |
704 | if (new->r_tid < req->r_tid) | |
705 | p = &(*p)->rb_left; | |
706 | else if (new->r_tid > req->r_tid) | |
707 | p = &(*p)->rb_right; | |
708 | else | |
709 | BUG(); | |
710 | } | |
711 | ||
712 | rb_link_node(&new->r_node, parent, p); | |
713 | rb_insert_color(&new->r_node, &osdc->requests); | |
714 | } | |
715 | ||
716 | static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc, | |
717 | u64 tid) | |
718 | { | |
719 | struct ceph_osd_request *req; | |
720 | struct rb_node *n = osdc->requests.rb_node; | |
721 | ||
722 | while (n) { | |
723 | req = rb_entry(n, struct ceph_osd_request, r_node); | |
724 | if (tid < req->r_tid) | |
725 | n = n->rb_left; | |
726 | else if (tid > req->r_tid) | |
727 | n = n->rb_right; | |
728 | else | |
729 | return req; | |
730 | } | |
731 | return NULL; | |
732 | } | |
733 | ||
734 | static struct ceph_osd_request * | |
735 | __lookup_request_ge(struct ceph_osd_client *osdc, | |
736 | u64 tid) | |
737 | { | |
738 | struct ceph_osd_request *req; | |
739 | struct rb_node *n = osdc->requests.rb_node; | |
740 | ||
741 | while (n) { | |
742 | req = rb_entry(n, struct ceph_osd_request, r_node); | |
743 | if (tid < req->r_tid) { | |
744 | if (!n->rb_left) | |
745 | return req; | |
746 | n = n->rb_left; | |
747 | } else if (tid > req->r_tid) { | |
748 | n = n->rb_right; | |
749 | } else { | |
750 | return req; | |
751 | } | |
752 | } | |
753 | return NULL; | |
754 | } | |
755 | ||
6f6c7006 SW |
756 | /* |
757 | * Resubmit requests pending on the given osd. | |
758 | */ | |
759 | static void __kick_osd_requests(struct ceph_osd_client *osdc, | |
760 | struct ceph_osd *osd) | |
761 | { | |
a40c4f10 | 762 | struct ceph_osd_request *req, *nreq; |
e02493c0 | 763 | LIST_HEAD(resend); |
6f6c7006 SW |
764 | int err; |
765 | ||
766 | dout("__kick_osd_requests osd%d\n", osd->o_osd); | |
767 | err = __reset_osd(osdc, osd); | |
685a7555 | 768 | if (err) |
6f6c7006 | 769 | return; |
e02493c0 AE |
770 | /* |
771 | * Build up a list of requests to resend by traversing the | |
772 | * osd's list of requests. Requests for a given object are | |
773 | * sent in tid order, and that is also the order they're | |
774 | * kept on this list. Therefore all requests that are in | |
775 | * flight will be found first, followed by all requests that | |
776 | * have not yet been sent. And to resend requests while | |
777 | * preserving this order we will want to put any sent | |
778 | * requests back on the front of the osd client's unsent | |
779 | * list. | |
780 | * | |
781 | * So we build a separate ordered list of already-sent | |
782 | * requests for the affected osd and splice it onto the | |
783 | * front of the osd client's unsent list. Once we've seen a | |
784 | * request that has not yet been sent we're done. Those | |
785 | * requests are already sitting right where they belong. | |
786 | */ | |
6f6c7006 | 787 | list_for_each_entry(req, &osd->o_requests, r_osd_item) { |
e02493c0 AE |
788 | if (!req->r_sent) |
789 | break; | |
790 | list_move_tail(&req->r_req_lru_item, &resend); | |
791 | dout("requeueing %p tid %llu osd%d\n", req, req->r_tid, | |
6f6c7006 | 792 | osd->o_osd); |
a40c4f10 YS |
793 | if (!req->r_linger) |
794 | req->r_flags |= CEPH_OSD_FLAG_RETRY; | |
795 | } | |
e02493c0 | 796 | list_splice(&resend, &osdc->req_unsent); |
a40c4f10 | 797 | |
e02493c0 AE |
798 | /* |
799 | * Linger requests are re-registered before sending, which | |
800 | * sets up a new tid for each. We add them to the unsent | |
801 | * list at the end to keep things in tid order. | |
802 | */ | |
a40c4f10 YS |
803 | list_for_each_entry_safe(req, nreq, &osd->o_linger_requests, |
804 | r_linger_osd) { | |
77f38e0e SW |
805 | /* |
806 | * reregister request prior to unregistering linger so | |
807 | * that r_osd is preserved. | |
808 | */ | |
809 | BUG_ON(!list_empty(&req->r_req_lru_item)); | |
a40c4f10 | 810 | __register_request(osdc, req); |
e02493c0 | 811 | list_add_tail(&req->r_req_lru_item, &osdc->req_unsent); |
ad885927 | 812 | list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); |
77f38e0e | 813 | __unregister_linger_request(osdc, req); |
a40c4f10 YS |
814 | dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid, |
815 | osd->o_osd); | |
6f6c7006 SW |
816 | } |
817 | } | |
818 | ||
f24e9980 | 819 | /* |
81b024e7 | 820 | * If the osd connection drops, we need to resubmit all requests. |
f24e9980 SW |
821 | */ |
822 | static void osd_reset(struct ceph_connection *con) | |
823 | { | |
824 | struct ceph_osd *osd = con->private; | |
825 | struct ceph_osd_client *osdc; | |
826 | ||
827 | if (!osd) | |
828 | return; | |
829 | dout("osd_reset osd%d\n", osd->o_osd); | |
830 | osdc = osd->o_osdc; | |
f24e9980 | 831 | down_read(&osdc->map_sem); |
83aff95e SW |
832 | mutex_lock(&osdc->request_mutex); |
833 | __kick_osd_requests(osdc, osd); | |
f9d25199 | 834 | __send_queued(osdc); |
83aff95e | 835 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
836 | up_read(&osdc->map_sem); |
837 | } | |
838 | ||
839 | /* | |
840 | * Track open sessions with osds. | |
841 | */ | |
e10006f8 | 842 | static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) |
f24e9980 SW |
843 | { |
844 | struct ceph_osd *osd; | |
845 | ||
846 | osd = kzalloc(sizeof(*osd), GFP_NOFS); | |
847 | if (!osd) | |
848 | return NULL; | |
849 | ||
850 | atomic_set(&osd->o_ref, 1); | |
851 | osd->o_osdc = osdc; | |
e10006f8 | 852 | osd->o_osd = onum; |
f407731d | 853 | RB_CLEAR_NODE(&osd->o_node); |
f24e9980 | 854 | INIT_LIST_HEAD(&osd->o_requests); |
a40c4f10 | 855 | INIT_LIST_HEAD(&osd->o_linger_requests); |
f5a2041b | 856 | INIT_LIST_HEAD(&osd->o_osd_lru); |
f24e9980 SW |
857 | osd->o_incarnation = 1; |
858 | ||
b7a9e5dd | 859 | ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); |
4e7a5dcd | 860 | |
422d2cb8 | 861 | INIT_LIST_HEAD(&osd->o_keepalive_item); |
f24e9980 SW |
862 | return osd; |
863 | } | |
864 | ||
865 | static struct ceph_osd *get_osd(struct ceph_osd *osd) | |
866 | { | |
867 | if (atomic_inc_not_zero(&osd->o_ref)) { | |
868 | dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, | |
869 | atomic_read(&osd->o_ref)); | |
870 | return osd; | |
871 | } else { | |
872 | dout("get_osd %p FAIL\n", osd); | |
873 | return NULL; | |
874 | } | |
875 | } | |
876 | ||
877 | static void put_osd(struct ceph_osd *osd) | |
878 | { | |
879 | dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), | |
880 | atomic_read(&osd->o_ref) - 1); | |
a255651d | 881 | if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) { |
79494d1b SW |
882 | struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; |
883 | ||
27859f97 | 884 | ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer); |
f24e9980 | 885 | kfree(osd); |
79494d1b | 886 | } |
f24e9980 SW |
887 | } |
888 | ||
889 | /* | |
890 | * remove an osd from our map | |
891 | */ | |
f5a2041b | 892 | static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) |
f24e9980 | 893 | { |
f5a2041b | 894 | dout("__remove_osd %p\n", osd); |
f24e9980 SW |
895 | BUG_ON(!list_empty(&osd->o_requests)); |
896 | rb_erase(&osd->o_node, &osdc->osds); | |
f5a2041b | 897 | list_del_init(&osd->o_osd_lru); |
f24e9980 SW |
898 | ceph_con_close(&osd->o_con); |
899 | put_osd(osd); | |
900 | } | |
901 | ||
aca420bc SW |
902 | static void remove_all_osds(struct ceph_osd_client *osdc) |
903 | { | |
048a9d2d | 904 | dout("%s %p\n", __func__, osdc); |
aca420bc SW |
905 | mutex_lock(&osdc->request_mutex); |
906 | while (!RB_EMPTY_ROOT(&osdc->osds)) { | |
907 | struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), | |
908 | struct ceph_osd, o_node); | |
909 | __remove_osd(osdc, osd); | |
910 | } | |
911 | mutex_unlock(&osdc->request_mutex); | |
912 | } | |
913 | ||
f5a2041b YS |
914 | static void __move_osd_to_lru(struct ceph_osd_client *osdc, |
915 | struct ceph_osd *osd) | |
916 | { | |
917 | dout("__move_osd_to_lru %p\n", osd); | |
918 | BUG_ON(!list_empty(&osd->o_osd_lru)); | |
919 | list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); | |
3d14c5d2 | 920 | osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl * HZ; |
f5a2041b YS |
921 | } |
922 | ||
923 | static void __remove_osd_from_lru(struct ceph_osd *osd) | |
924 | { | |
925 | dout("__remove_osd_from_lru %p\n", osd); | |
926 | if (!list_empty(&osd->o_osd_lru)) | |
927 | list_del_init(&osd->o_osd_lru); | |
928 | } | |
929 | ||
aca420bc | 930 | static void remove_old_osds(struct ceph_osd_client *osdc) |
f5a2041b YS |
931 | { |
932 | struct ceph_osd *osd, *nosd; | |
933 | ||
934 | dout("__remove_old_osds %p\n", osdc); | |
935 | mutex_lock(&osdc->request_mutex); | |
936 | list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { | |
aca420bc | 937 | if (time_before(jiffies, osd->lru_ttl)) |
f5a2041b YS |
938 | break; |
939 | __remove_osd(osdc, osd); | |
940 | } | |
941 | mutex_unlock(&osdc->request_mutex); | |
942 | } | |
943 | ||
f24e9980 SW |
944 | /* |
945 | * reset osd connect | |
946 | */ | |
f5a2041b | 947 | static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) |
f24e9980 | 948 | { |
c3acb181 | 949 | struct ceph_entity_addr *peer_addr; |
f24e9980 | 950 | |
f5a2041b | 951 | dout("__reset_osd %p osd%d\n", osd, osd->o_osd); |
a40c4f10 YS |
952 | if (list_empty(&osd->o_requests) && |
953 | list_empty(&osd->o_linger_requests)) { | |
f5a2041b | 954 | __remove_osd(osdc, osd); |
c3acb181 AE |
955 | |
956 | return -ENODEV; | |
957 | } | |
958 | ||
959 | peer_addr = &osdc->osdmap->osd_addr[osd->o_osd]; | |
960 | if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && | |
961 | !ceph_con_opened(&osd->o_con)) { | |
962 | struct ceph_osd_request *req; | |
963 | ||
87b315a5 SW |
964 | dout(" osd addr hasn't changed and connection never opened," |
965 | " letting msgr retry"); | |
966 | /* touch each r_stamp for handle_timeout()'s benfit */ | |
967 | list_for_each_entry(req, &osd->o_requests, r_osd_item) | |
968 | req->r_stamp = jiffies; | |
c3acb181 AE |
969 | |
970 | return -EAGAIN; | |
f24e9980 | 971 | } |
c3acb181 AE |
972 | |
973 | ceph_con_close(&osd->o_con); | |
974 | ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); | |
975 | osd->o_incarnation++; | |
976 | ||
977 | return 0; | |
f24e9980 SW |
978 | } |
979 | ||
980 | static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new) | |
981 | { | |
982 | struct rb_node **p = &osdc->osds.rb_node; | |
983 | struct rb_node *parent = NULL; | |
984 | struct ceph_osd *osd = NULL; | |
985 | ||
aca420bc | 986 | dout("__insert_osd %p osd%d\n", new, new->o_osd); |
f24e9980 SW |
987 | while (*p) { |
988 | parent = *p; | |
989 | osd = rb_entry(parent, struct ceph_osd, o_node); | |
990 | if (new->o_osd < osd->o_osd) | |
991 | p = &(*p)->rb_left; | |
992 | else if (new->o_osd > osd->o_osd) | |
993 | p = &(*p)->rb_right; | |
994 | else | |
995 | BUG(); | |
996 | } | |
997 | ||
998 | rb_link_node(&new->o_node, parent, p); | |
999 | rb_insert_color(&new->o_node, &osdc->osds); | |
1000 | } | |
1001 | ||
1002 | static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o) | |
1003 | { | |
1004 | struct ceph_osd *osd; | |
1005 | struct rb_node *n = osdc->osds.rb_node; | |
1006 | ||
1007 | while (n) { | |
1008 | osd = rb_entry(n, struct ceph_osd, o_node); | |
1009 | if (o < osd->o_osd) | |
1010 | n = n->rb_left; | |
1011 | else if (o > osd->o_osd) | |
1012 | n = n->rb_right; | |
1013 | else | |
1014 | return osd; | |
1015 | } | |
1016 | return NULL; | |
1017 | } | |
1018 | ||
422d2cb8 YS |
1019 | static void __schedule_osd_timeout(struct ceph_osd_client *osdc) |
1020 | { | |
1021 | schedule_delayed_work(&osdc->timeout_work, | |
3d14c5d2 | 1022 | osdc->client->options->osd_keepalive_timeout * HZ); |
422d2cb8 YS |
1023 | } |
1024 | ||
1025 | static void __cancel_osd_timeout(struct ceph_osd_client *osdc) | |
1026 | { | |
1027 | cancel_delayed_work(&osdc->timeout_work); | |
1028 | } | |
f24e9980 SW |
1029 | |
1030 | /* | |
1031 | * Register request, assign tid. If this is the first request, set up | |
1032 | * the timeout event. | |
1033 | */ | |
a40c4f10 YS |
1034 | static void __register_request(struct ceph_osd_client *osdc, |
1035 | struct ceph_osd_request *req) | |
f24e9980 | 1036 | { |
f24e9980 | 1037 | req->r_tid = ++osdc->last_tid; |
6df058c0 | 1038 | req->r_request->hdr.tid = cpu_to_le64(req->r_tid); |
77f38e0e | 1039 | dout("__register_request %p tid %lld\n", req, req->r_tid); |
f24e9980 SW |
1040 | __insert_request(osdc, req); |
1041 | ceph_osdc_get_request(req); | |
1042 | osdc->num_requests++; | |
f24e9980 | 1043 | if (osdc->num_requests == 1) { |
422d2cb8 YS |
1044 | dout(" first request, scheduling timeout\n"); |
1045 | __schedule_osd_timeout(osdc); | |
f24e9980 | 1046 | } |
a40c4f10 YS |
1047 | } |
1048 | ||
f24e9980 SW |
1049 | /* |
1050 | * called under osdc->request_mutex | |
1051 | */ | |
1052 | static void __unregister_request(struct ceph_osd_client *osdc, | |
1053 | struct ceph_osd_request *req) | |
1054 | { | |
35f9f8a0 SW |
1055 | if (RB_EMPTY_NODE(&req->r_node)) { |
1056 | dout("__unregister_request %p tid %lld not registered\n", | |
1057 | req, req->r_tid); | |
1058 | return; | |
1059 | } | |
1060 | ||
f24e9980 SW |
1061 | dout("__unregister_request %p tid %lld\n", req, req->r_tid); |
1062 | rb_erase(&req->r_node, &osdc->requests); | |
1063 | osdc->num_requests--; | |
1064 | ||
0ba6478d SW |
1065 | if (req->r_osd) { |
1066 | /* make sure the original request isn't in flight. */ | |
6740a845 | 1067 | ceph_msg_revoke(req->r_request); |
0ba6478d SW |
1068 | |
1069 | list_del_init(&req->r_osd_item); | |
a40c4f10 YS |
1070 | if (list_empty(&req->r_osd->o_requests) && |
1071 | list_empty(&req->r_osd->o_linger_requests)) { | |
1072 | dout("moving osd to %p lru\n", req->r_osd); | |
f5a2041b | 1073 | __move_osd_to_lru(osdc, req->r_osd); |
a40c4f10 | 1074 | } |
fbdb9190 | 1075 | if (list_empty(&req->r_linger_item)) |
a40c4f10 | 1076 | req->r_osd = NULL; |
0ba6478d | 1077 | } |
f24e9980 | 1078 | |
7d5f2481 | 1079 | list_del_init(&req->r_req_lru_item); |
f24e9980 SW |
1080 | ceph_osdc_put_request(req); |
1081 | ||
422d2cb8 YS |
1082 | if (osdc->num_requests == 0) { |
1083 | dout(" no requests, canceling timeout\n"); | |
1084 | __cancel_osd_timeout(osdc); | |
f24e9980 SW |
1085 | } |
1086 | } | |
1087 | ||
1088 | /* | |
1089 | * Cancel a previously queued request message | |
1090 | */ | |
1091 | static void __cancel_request(struct ceph_osd_request *req) | |
1092 | { | |
6bc18876 | 1093 | if (req->r_sent && req->r_osd) { |
6740a845 | 1094 | ceph_msg_revoke(req->r_request); |
f24e9980 SW |
1095 | req->r_sent = 0; |
1096 | } | |
1097 | } | |
1098 | ||
a40c4f10 YS |
1099 | static void __register_linger_request(struct ceph_osd_client *osdc, |
1100 | struct ceph_osd_request *req) | |
1101 | { | |
1102 | dout("__register_linger_request %p\n", req); | |
1103 | list_add_tail(&req->r_linger_item, &osdc->req_linger); | |
6194ea89 SW |
1104 | if (req->r_osd) |
1105 | list_add_tail(&req->r_linger_osd, | |
1106 | &req->r_osd->o_linger_requests); | |
a40c4f10 YS |
1107 | } |
1108 | ||
1109 | static void __unregister_linger_request(struct ceph_osd_client *osdc, | |
1110 | struct ceph_osd_request *req) | |
1111 | { | |
1112 | dout("__unregister_linger_request %p\n", req); | |
61c74035 | 1113 | list_del_init(&req->r_linger_item); |
a40c4f10 | 1114 | if (req->r_osd) { |
a40c4f10 YS |
1115 | list_del_init(&req->r_linger_osd); |
1116 | ||
1117 | if (list_empty(&req->r_osd->o_requests) && | |
1118 | list_empty(&req->r_osd->o_linger_requests)) { | |
1119 | dout("moving osd to %p lru\n", req->r_osd); | |
1120 | __move_osd_to_lru(osdc, req->r_osd); | |
1121 | } | |
fbdb9190 SW |
1122 | if (list_empty(&req->r_osd_item)) |
1123 | req->r_osd = NULL; | |
a40c4f10 YS |
1124 | } |
1125 | } | |
1126 | ||
1127 | void ceph_osdc_unregister_linger_request(struct ceph_osd_client *osdc, | |
1128 | struct ceph_osd_request *req) | |
1129 | { | |
1130 | mutex_lock(&osdc->request_mutex); | |
1131 | if (req->r_linger) { | |
1132 | __unregister_linger_request(osdc, req); | |
1133 | ceph_osdc_put_request(req); | |
1134 | } | |
1135 | mutex_unlock(&osdc->request_mutex); | |
1136 | } | |
1137 | EXPORT_SYMBOL(ceph_osdc_unregister_linger_request); | |
1138 | ||
1139 | void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, | |
1140 | struct ceph_osd_request *req) | |
1141 | { | |
1142 | if (!req->r_linger) { | |
1143 | dout("set_request_linger %p\n", req); | |
1144 | req->r_linger = 1; | |
1145 | /* | |
1146 | * caller is now responsible for calling | |
1147 | * unregister_linger_request | |
1148 | */ | |
1149 | ceph_osdc_get_request(req); | |
1150 | } | |
1151 | } | |
1152 | EXPORT_SYMBOL(ceph_osdc_set_request_linger); | |
1153 | ||
f24e9980 SW |
1154 | /* |
1155 | * Pick an osd (the first 'up' osd in the pg), allocate the osd struct | |
1156 | * (as needed), and set the request r_osd appropriately. If there is | |
25985edc | 1157 | * no up osd, set r_osd to NULL. Move the request to the appropriate list |
6f6c7006 | 1158 | * (unsent, homeless) or leave on in-flight lru. |
f24e9980 SW |
1159 | * |
1160 | * Return 0 if unchanged, 1 if changed, or negative on error. | |
1161 | * | |
1162 | * Caller should hold map_sem for read and request_mutex. | |
1163 | */ | |
6f6c7006 | 1164 | static int __map_request(struct ceph_osd_client *osdc, |
38d6453c | 1165 | struct ceph_osd_request *req, int force_resend) |
f24e9980 | 1166 | { |
5b191d99 | 1167 | struct ceph_pg pgid; |
d85b7056 SW |
1168 | int acting[CEPH_PG_MAX_SIZE]; |
1169 | int o = -1, num = 0; | |
f24e9980 | 1170 | int err; |
f24e9980 | 1171 | |
6f6c7006 | 1172 | dout("map_request %p tid %lld\n", req, req->r_tid); |
41766f87 AE |
1173 | err = ceph_calc_ceph_pg(&pgid, req->r_oid, osdc->osdmap, |
1174 | ceph_file_layout_pg_pool(req->r_file_layout)); | |
6f6c7006 SW |
1175 | if (err) { |
1176 | list_move(&req->r_req_lru_item, &osdc->req_notarget); | |
f24e9980 | 1177 | return err; |
6f6c7006 | 1178 | } |
7740a42f SW |
1179 | req->r_pgid = pgid; |
1180 | ||
d85b7056 SW |
1181 | err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting); |
1182 | if (err > 0) { | |
1183 | o = acting[0]; | |
1184 | num = err; | |
1185 | } | |
f24e9980 | 1186 | |
38d6453c SW |
1187 | if ((!force_resend && |
1188 | req->r_osd && req->r_osd->o_osd == o && | |
d85b7056 SW |
1189 | req->r_sent >= req->r_osd->o_incarnation && |
1190 | req->r_num_pg_osds == num && | |
1191 | memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) || | |
f24e9980 SW |
1192 | (req->r_osd == NULL && o == -1)) |
1193 | return 0; /* no change */ | |
1194 | ||
5b191d99 SW |
1195 | dout("map_request tid %llu pgid %lld.%x osd%d (was osd%d)\n", |
1196 | req->r_tid, pgid.pool, pgid.seed, o, | |
f24e9980 SW |
1197 | req->r_osd ? req->r_osd->o_osd : -1); |
1198 | ||
d85b7056 SW |
1199 | /* record full pg acting set */ |
1200 | memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num); | |
1201 | req->r_num_pg_osds = num; | |
1202 | ||
f24e9980 SW |
1203 | if (req->r_osd) { |
1204 | __cancel_request(req); | |
1205 | list_del_init(&req->r_osd_item); | |
f24e9980 SW |
1206 | req->r_osd = NULL; |
1207 | } | |
1208 | ||
1209 | req->r_osd = __lookup_osd(osdc, o); | |
1210 | if (!req->r_osd && o >= 0) { | |
c99eb1c7 | 1211 | err = -ENOMEM; |
e10006f8 | 1212 | req->r_osd = create_osd(osdc, o); |
6f6c7006 SW |
1213 | if (!req->r_osd) { |
1214 | list_move(&req->r_req_lru_item, &osdc->req_notarget); | |
c99eb1c7 | 1215 | goto out; |
6f6c7006 | 1216 | } |
f24e9980 | 1217 | |
6f6c7006 | 1218 | dout("map_request osd %p is osd%d\n", req->r_osd, o); |
f24e9980 SW |
1219 | __insert_osd(osdc, req->r_osd); |
1220 | ||
b7a9e5dd SW |
1221 | ceph_con_open(&req->r_osd->o_con, |
1222 | CEPH_ENTITY_TYPE_OSD, o, | |
1223 | &osdc->osdmap->osd_addr[o]); | |
f24e9980 SW |
1224 | } |
1225 | ||
f5a2041b YS |
1226 | if (req->r_osd) { |
1227 | __remove_osd_from_lru(req->r_osd); | |
ad885927 AE |
1228 | list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); |
1229 | list_move_tail(&req->r_req_lru_item, &osdc->req_unsent); | |
6f6c7006 | 1230 | } else { |
ad885927 | 1231 | list_move_tail(&req->r_req_lru_item, &osdc->req_notarget); |
f5a2041b | 1232 | } |
d85b7056 | 1233 | err = 1; /* osd or pg changed */ |
f24e9980 SW |
1234 | |
1235 | out: | |
f24e9980 SW |
1236 | return err; |
1237 | } | |
1238 | ||
1239 | /* | |
1240 | * caller should hold map_sem (for read) and request_mutex | |
1241 | */ | |
56e925b6 SW |
1242 | static void __send_request(struct ceph_osd_client *osdc, |
1243 | struct ceph_osd_request *req) | |
f24e9980 | 1244 | { |
1b83bef2 | 1245 | void *p; |
f24e9980 | 1246 | |
1b83bef2 SW |
1247 | dout("send_request %p tid %llu to osd%d flags %d pg %lld.%x\n", |
1248 | req, req->r_tid, req->r_osd->o_osd, req->r_flags, | |
1249 | (unsigned long long)req->r_pgid.pool, req->r_pgid.seed); | |
1250 | ||
1251 | /* fill in message content that changes each time we send it */ | |
1252 | put_unaligned_le32(osdc->osdmap->epoch, req->r_request_osdmap_epoch); | |
1253 | put_unaligned_le32(req->r_flags, req->r_request_flags); | |
1254 | put_unaligned_le64(req->r_pgid.pool, req->r_request_pool); | |
1255 | p = req->r_request_pgid; | |
1256 | ceph_encode_64(&p, req->r_pgid.pool); | |
1257 | ceph_encode_32(&p, req->r_pgid.seed); | |
1258 | put_unaligned_le64(1, req->r_request_attempts); /* FIXME */ | |
1259 | memcpy(req->r_request_reassert_version, &req->r_reassert_version, | |
1260 | sizeof(req->r_reassert_version)); | |
2169aea6 | 1261 | |
3dd72fc0 | 1262 | req->r_stamp = jiffies; |
07a27e22 | 1263 | list_move_tail(&req->r_req_lru_item, &osdc->req_lru); |
f24e9980 SW |
1264 | |
1265 | ceph_msg_get(req->r_request); /* send consumes a ref */ | |
1266 | ceph_con_send(&req->r_osd->o_con, req->r_request); | |
1267 | req->r_sent = req->r_osd->o_incarnation; | |
f24e9980 SW |
1268 | } |
1269 | ||
6f6c7006 SW |
1270 | /* |
1271 | * Send any requests in the queue (req_unsent). | |
1272 | */ | |
f9d25199 | 1273 | static void __send_queued(struct ceph_osd_client *osdc) |
6f6c7006 SW |
1274 | { |
1275 | struct ceph_osd_request *req, *tmp; | |
1276 | ||
f9d25199 AE |
1277 | dout("__send_queued\n"); |
1278 | list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) | |
6f6c7006 | 1279 | __send_request(osdc, req); |
6f6c7006 SW |
1280 | } |
1281 | ||
f24e9980 SW |
1282 | /* |
1283 | * Timeout callback, called every N seconds when 1 or more osd | |
1284 | * requests has been active for more than N seconds. When this | |
1285 | * happens, we ping all OSDs with requests who have timed out to | |
1286 | * ensure any communications channel reset is detected. Reset the | |
1287 | * request timeouts another N seconds in the future as we go. | |
1288 | * Reschedule the timeout event another N seconds in future (unless | |
1289 | * there are no open requests). | |
1290 | */ | |
1291 | static void handle_timeout(struct work_struct *work) | |
1292 | { | |
1293 | struct ceph_osd_client *osdc = | |
1294 | container_of(work, struct ceph_osd_client, timeout_work.work); | |
83aff95e | 1295 | struct ceph_osd_request *req; |
f24e9980 | 1296 | struct ceph_osd *osd; |
422d2cb8 | 1297 | unsigned long keepalive = |
3d14c5d2 | 1298 | osdc->client->options->osd_keepalive_timeout * HZ; |
422d2cb8 | 1299 | struct list_head slow_osds; |
f24e9980 SW |
1300 | dout("timeout\n"); |
1301 | down_read(&osdc->map_sem); | |
1302 | ||
1303 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1304 | ||
1305 | mutex_lock(&osdc->request_mutex); | |
f24e9980 | 1306 | |
422d2cb8 YS |
1307 | /* |
1308 | * ping osds that are a bit slow. this ensures that if there | |
1309 | * is a break in the TCP connection we will notice, and reopen | |
1310 | * a connection with that osd (from the fault callback). | |
1311 | */ | |
1312 | INIT_LIST_HEAD(&slow_osds); | |
1313 | list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { | |
3dd72fc0 | 1314 | if (time_before(jiffies, req->r_stamp + keepalive)) |
422d2cb8 YS |
1315 | break; |
1316 | ||
1317 | osd = req->r_osd; | |
1318 | BUG_ON(!osd); | |
1319 | dout(" tid %llu is slow, will send keepalive on osd%d\n", | |
f24e9980 | 1320 | req->r_tid, osd->o_osd); |
422d2cb8 YS |
1321 | list_move_tail(&osd->o_keepalive_item, &slow_osds); |
1322 | } | |
1323 | while (!list_empty(&slow_osds)) { | |
1324 | osd = list_entry(slow_osds.next, struct ceph_osd, | |
1325 | o_keepalive_item); | |
1326 | list_del_init(&osd->o_keepalive_item); | |
f24e9980 SW |
1327 | ceph_con_keepalive(&osd->o_con); |
1328 | } | |
1329 | ||
422d2cb8 | 1330 | __schedule_osd_timeout(osdc); |
f9d25199 | 1331 | __send_queued(osdc); |
f24e9980 | 1332 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
1333 | up_read(&osdc->map_sem); |
1334 | } | |
1335 | ||
f5a2041b YS |
1336 | static void handle_osds_timeout(struct work_struct *work) |
1337 | { | |
1338 | struct ceph_osd_client *osdc = | |
1339 | container_of(work, struct ceph_osd_client, | |
1340 | osds_timeout_work.work); | |
1341 | unsigned long delay = | |
3d14c5d2 | 1342 | osdc->client->options->osd_idle_ttl * HZ >> 2; |
f5a2041b YS |
1343 | |
1344 | dout("osds timeout\n"); | |
1345 | down_read(&osdc->map_sem); | |
aca420bc | 1346 | remove_old_osds(osdc); |
f5a2041b YS |
1347 | up_read(&osdc->map_sem); |
1348 | ||
1349 | schedule_delayed_work(&osdc->osds_timeout_work, | |
1350 | round_jiffies_relative(delay)); | |
1351 | } | |
1352 | ||
25845472 SW |
1353 | static void complete_request(struct ceph_osd_request *req) |
1354 | { | |
1355 | if (req->r_safe_callback) | |
1356 | req->r_safe_callback(req, NULL); | |
1357 | complete_all(&req->r_safe_completion); /* fsync waiter */ | |
1358 | } | |
1359 | ||
f24e9980 SW |
1360 | /* |
1361 | * handle osd op reply. either call the callback if it is specified, | |
1362 | * or do the completion to wake up the waiting thread. | |
1363 | */ | |
350b1c32 SW |
1364 | static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, |
1365 | struct ceph_connection *con) | |
f24e9980 | 1366 | { |
1b83bef2 | 1367 | void *p, *end; |
f24e9980 SW |
1368 | struct ceph_osd_request *req; |
1369 | u64 tid; | |
1b83bef2 | 1370 | int object_len; |
79528734 AE |
1371 | unsigned int numops; |
1372 | int payload_len, flags; | |
0ceed5db | 1373 | s32 result; |
1b83bef2 SW |
1374 | s32 retry_attempt; |
1375 | struct ceph_pg pg; | |
1376 | int err; | |
1377 | u32 reassert_epoch; | |
1378 | u64 reassert_version; | |
1379 | u32 osdmap_epoch; | |
0d5af164 | 1380 | int already_completed; |
9fc6e064 | 1381 | u32 bytes; |
79528734 | 1382 | unsigned int i; |
f24e9980 | 1383 | |
6df058c0 | 1384 | tid = le64_to_cpu(msg->hdr.tid); |
1b83bef2 SW |
1385 | dout("handle_reply %p tid %llu\n", msg, tid); |
1386 | ||
1387 | p = msg->front.iov_base; | |
1388 | end = p + msg->front.iov_len; | |
1389 | ||
1390 | ceph_decode_need(&p, end, 4, bad); | |
1391 | object_len = ceph_decode_32(&p); | |
1392 | ceph_decode_need(&p, end, object_len, bad); | |
1393 | p += object_len; | |
1394 | ||
ef4859d6 | 1395 | err = ceph_decode_pgid(&p, end, &pg); |
1b83bef2 | 1396 | if (err) |
f24e9980 | 1397 | goto bad; |
1b83bef2 SW |
1398 | |
1399 | ceph_decode_need(&p, end, 8 + 4 + 4 + 8 + 4, bad); | |
1400 | flags = ceph_decode_64(&p); | |
1401 | result = ceph_decode_32(&p); | |
1402 | reassert_epoch = ceph_decode_32(&p); | |
1403 | reassert_version = ceph_decode_64(&p); | |
1404 | osdmap_epoch = ceph_decode_32(&p); | |
1405 | ||
f24e9980 SW |
1406 | /* lookup */ |
1407 | mutex_lock(&osdc->request_mutex); | |
1408 | req = __lookup_request(osdc, tid); | |
1409 | if (req == NULL) { | |
1410 | dout("handle_reply tid %llu dne\n", tid); | |
8058fd45 | 1411 | goto bad_mutex; |
f24e9980 SW |
1412 | } |
1413 | ceph_osdc_get_request(req); | |
1b83bef2 SW |
1414 | |
1415 | dout("handle_reply %p tid %llu req %p result %d\n", msg, tid, | |
1416 | req, result); | |
1417 | ||
1418 | ceph_decode_need(&p, end, 4, bad); | |
1419 | numops = ceph_decode_32(&p); | |
1420 | if (numops > CEPH_OSD_MAX_OP) | |
1421 | goto bad_put; | |
1422 | if (numops != req->r_num_ops) | |
1423 | goto bad_put; | |
1424 | payload_len = 0; | |
1425 | ceph_decode_need(&p, end, numops * sizeof(struct ceph_osd_op), bad); | |
1426 | for (i = 0; i < numops; i++) { | |
1427 | struct ceph_osd_op *op = p; | |
1428 | int len; | |
1429 | ||
1430 | len = le32_to_cpu(op->payload_len); | |
1431 | req->r_reply_op_len[i] = len; | |
1432 | dout(" op %d has %d bytes\n", i, len); | |
1433 | payload_len += len; | |
1434 | p += sizeof(*op); | |
1435 | } | |
9fc6e064 AE |
1436 | bytes = le32_to_cpu(msg->hdr.data_len); |
1437 | if (payload_len != bytes) { | |
1b83bef2 | 1438 | pr_warning("sum of op payload lens %d != data_len %d", |
9fc6e064 | 1439 | payload_len, bytes); |
1b83bef2 SW |
1440 | goto bad_put; |
1441 | } | |
1442 | ||
1443 | ceph_decode_need(&p, end, 4 + numops * 4, bad); | |
1444 | retry_attempt = ceph_decode_32(&p); | |
1445 | for (i = 0; i < numops; i++) | |
1446 | req->r_reply_op_result[i] = ceph_decode_32(&p); | |
f24e9980 | 1447 | |
f24e9980 | 1448 | if (!req->r_got_reply) { |
f24e9980 | 1449 | |
1b83bef2 | 1450 | req->r_result = result; |
f24e9980 SW |
1451 | dout("handle_reply result %d bytes %d\n", req->r_result, |
1452 | bytes); | |
1453 | if (req->r_result == 0) | |
1454 | req->r_result = bytes; | |
1455 | ||
1456 | /* in case this is a write and we need to replay, */ | |
1b83bef2 SW |
1457 | req->r_reassert_version.epoch = cpu_to_le32(reassert_epoch); |
1458 | req->r_reassert_version.version = cpu_to_le64(reassert_version); | |
f24e9980 SW |
1459 | |
1460 | req->r_got_reply = 1; | |
1461 | } else if ((flags & CEPH_OSD_FLAG_ONDISK) == 0) { | |
1462 | dout("handle_reply tid %llu dup ack\n", tid); | |
34b43a56 | 1463 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
1464 | goto done; |
1465 | } | |
1466 | ||
1467 | dout("handle_reply tid %llu flags %d\n", tid, flags); | |
1468 | ||
a40c4f10 YS |
1469 | if (req->r_linger && (flags & CEPH_OSD_FLAG_ONDISK)) |
1470 | __register_linger_request(osdc, req); | |
1471 | ||
f24e9980 | 1472 | /* either this is a read, or we got the safe response */ |
0ceed5db SW |
1473 | if (result < 0 || |
1474 | (flags & CEPH_OSD_FLAG_ONDISK) || | |
f24e9980 SW |
1475 | ((flags & CEPH_OSD_FLAG_WRITE) == 0)) |
1476 | __unregister_request(osdc, req); | |
1477 | ||
0d5af164 AE |
1478 | already_completed = req->r_completed; |
1479 | req->r_completed = 1; | |
f24e9980 | 1480 | mutex_unlock(&osdc->request_mutex); |
0d5af164 AE |
1481 | if (already_completed) |
1482 | goto done; | |
f24e9980 SW |
1483 | |
1484 | if (req->r_callback) | |
1485 | req->r_callback(req, msg); | |
1486 | else | |
03066f23 | 1487 | complete_all(&req->r_completion); |
f24e9980 | 1488 | |
25845472 SW |
1489 | if (flags & CEPH_OSD_FLAG_ONDISK) |
1490 | complete_request(req); | |
f24e9980 SW |
1491 | |
1492 | done: | |
a40c4f10 | 1493 | dout("req=%p req->r_linger=%d\n", req, req->r_linger); |
f24e9980 SW |
1494 | ceph_osdc_put_request(req); |
1495 | return; | |
1496 | ||
1b83bef2 SW |
1497 | bad_put: |
1498 | ceph_osdc_put_request(req); | |
8058fd45 AE |
1499 | bad_mutex: |
1500 | mutex_unlock(&osdc->request_mutex); | |
f24e9980 | 1501 | bad: |
1b83bef2 SW |
1502 | pr_err("corrupt osd_op_reply got %d %d\n", |
1503 | (int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len)); | |
9ec7cab1 | 1504 | ceph_msg_dump(msg); |
f24e9980 SW |
1505 | } |
1506 | ||
6f6c7006 | 1507 | static void reset_changed_osds(struct ceph_osd_client *osdc) |
f24e9980 | 1508 | { |
f24e9980 | 1509 | struct rb_node *p, *n; |
f24e9980 | 1510 | |
6f6c7006 SW |
1511 | for (p = rb_first(&osdc->osds); p; p = n) { |
1512 | struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); | |
f24e9980 | 1513 | |
6f6c7006 SW |
1514 | n = rb_next(p); |
1515 | if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || | |
1516 | memcmp(&osd->o_con.peer_addr, | |
1517 | ceph_osd_addr(osdc->osdmap, | |
1518 | osd->o_osd), | |
1519 | sizeof(struct ceph_entity_addr)) != 0) | |
1520 | __reset_osd(osdc, osd); | |
f24e9980 | 1521 | } |
422d2cb8 YS |
1522 | } |
1523 | ||
1524 | /* | |
6f6c7006 SW |
1525 | * Requeue requests whose mapping to an OSD has changed. If requests map to |
1526 | * no osd, request a new map. | |
422d2cb8 | 1527 | * |
e6d50f67 | 1528 | * Caller should hold map_sem for read. |
422d2cb8 | 1529 | */ |
38d6453c | 1530 | static void kick_requests(struct ceph_osd_client *osdc, int force_resend) |
422d2cb8 | 1531 | { |
a40c4f10 | 1532 | struct ceph_osd_request *req, *nreq; |
6f6c7006 SW |
1533 | struct rb_node *p; |
1534 | int needmap = 0; | |
1535 | int err; | |
422d2cb8 | 1536 | |
38d6453c | 1537 | dout("kick_requests %s\n", force_resend ? " (force resend)" : ""); |
422d2cb8 | 1538 | mutex_lock(&osdc->request_mutex); |
6194ea89 | 1539 | for (p = rb_first(&osdc->requests); p; ) { |
6f6c7006 | 1540 | req = rb_entry(p, struct ceph_osd_request, r_node); |
6194ea89 | 1541 | p = rb_next(p); |
ab60b16d AE |
1542 | |
1543 | /* | |
1544 | * For linger requests that have not yet been | |
1545 | * registered, move them to the linger list; they'll | |
1546 | * be sent to the osd in the loop below. Unregister | |
1547 | * the request before re-registering it as a linger | |
1548 | * request to ensure the __map_request() below | |
1549 | * will decide it needs to be sent. | |
1550 | */ | |
1551 | if (req->r_linger && list_empty(&req->r_linger_item)) { | |
1552 | dout("%p tid %llu restart on osd%d\n", | |
1553 | req, req->r_tid, | |
1554 | req->r_osd ? req->r_osd->o_osd : -1); | |
1555 | __unregister_request(osdc, req); | |
1556 | __register_linger_request(osdc, req); | |
1557 | continue; | |
1558 | } | |
1559 | ||
38d6453c | 1560 | err = __map_request(osdc, req, force_resend); |
6f6c7006 SW |
1561 | if (err < 0) |
1562 | continue; /* error */ | |
1563 | if (req->r_osd == NULL) { | |
1564 | dout("%p tid %llu maps to no osd\n", req, req->r_tid); | |
1565 | needmap++; /* request a newer map */ | |
1566 | } else if (err > 0) { | |
6194ea89 SW |
1567 | if (!req->r_linger) { |
1568 | dout("%p tid %llu requeued on osd%d\n", req, | |
1569 | req->r_tid, | |
1570 | req->r_osd ? req->r_osd->o_osd : -1); | |
a40c4f10 | 1571 | req->r_flags |= CEPH_OSD_FLAG_RETRY; |
6194ea89 SW |
1572 | } |
1573 | } | |
a40c4f10 YS |
1574 | } |
1575 | ||
1576 | list_for_each_entry_safe(req, nreq, &osdc->req_linger, | |
1577 | r_linger_item) { | |
1578 | dout("linger req=%p req->r_osd=%p\n", req, req->r_osd); | |
1579 | ||
38d6453c | 1580 | err = __map_request(osdc, req, force_resend); |
ab60b16d | 1581 | dout("__map_request returned %d\n", err); |
a40c4f10 YS |
1582 | if (err == 0) |
1583 | continue; /* no change and no osd was specified */ | |
1584 | if (err < 0) | |
1585 | continue; /* hrm! */ | |
1586 | if (req->r_osd == NULL) { | |
1587 | dout("tid %llu maps to no valid osd\n", req->r_tid); | |
1588 | needmap++; /* request a newer map */ | |
1589 | continue; | |
6f6c7006 | 1590 | } |
a40c4f10 YS |
1591 | |
1592 | dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid, | |
1593 | req->r_osd ? req->r_osd->o_osd : -1); | |
a40c4f10 | 1594 | __register_request(osdc, req); |
c89ce05e | 1595 | __unregister_linger_request(osdc, req); |
6f6c7006 | 1596 | } |
f24e9980 SW |
1597 | mutex_unlock(&osdc->request_mutex); |
1598 | ||
1599 | if (needmap) { | |
1600 | dout("%d requests for down osds, need new map\n", needmap); | |
1601 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1602 | } | |
e6d50f67 | 1603 | reset_changed_osds(osdc); |
422d2cb8 | 1604 | } |
6f6c7006 SW |
1605 | |
1606 | ||
f24e9980 SW |
1607 | /* |
1608 | * Process updated osd map. | |
1609 | * | |
1610 | * The message contains any number of incremental and full maps, normally | |
1611 | * indicating some sort of topology change in the cluster. Kick requests | |
1612 | * off to different OSDs as needed. | |
1613 | */ | |
1614 | void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) | |
1615 | { | |
1616 | void *p, *end, *next; | |
1617 | u32 nr_maps, maplen; | |
1618 | u32 epoch; | |
1619 | struct ceph_osdmap *newmap = NULL, *oldmap; | |
1620 | int err; | |
1621 | struct ceph_fsid fsid; | |
1622 | ||
1623 | dout("handle_map have %u\n", osdc->osdmap ? osdc->osdmap->epoch : 0); | |
1624 | p = msg->front.iov_base; | |
1625 | end = p + msg->front.iov_len; | |
1626 | ||
1627 | /* verify fsid */ | |
1628 | ceph_decode_need(&p, end, sizeof(fsid), bad); | |
1629 | ceph_decode_copy(&p, &fsid, sizeof(fsid)); | |
0743304d SW |
1630 | if (ceph_check_fsid(osdc->client, &fsid) < 0) |
1631 | return; | |
f24e9980 SW |
1632 | |
1633 | down_write(&osdc->map_sem); | |
1634 | ||
1635 | /* incremental maps */ | |
1636 | ceph_decode_32_safe(&p, end, nr_maps, bad); | |
1637 | dout(" %d inc maps\n", nr_maps); | |
1638 | while (nr_maps > 0) { | |
1639 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); | |
c89136ea SW |
1640 | epoch = ceph_decode_32(&p); |
1641 | maplen = ceph_decode_32(&p); | |
f24e9980 SW |
1642 | ceph_decode_need(&p, end, maplen, bad); |
1643 | next = p + maplen; | |
1644 | if (osdc->osdmap && osdc->osdmap->epoch+1 == epoch) { | |
1645 | dout("applying incremental map %u len %d\n", | |
1646 | epoch, maplen); | |
1647 | newmap = osdmap_apply_incremental(&p, next, | |
1648 | osdc->osdmap, | |
15d9882c | 1649 | &osdc->client->msgr); |
f24e9980 SW |
1650 | if (IS_ERR(newmap)) { |
1651 | err = PTR_ERR(newmap); | |
1652 | goto bad; | |
1653 | } | |
30dc6381 | 1654 | BUG_ON(!newmap); |
f24e9980 SW |
1655 | if (newmap != osdc->osdmap) { |
1656 | ceph_osdmap_destroy(osdc->osdmap); | |
1657 | osdc->osdmap = newmap; | |
1658 | } | |
38d6453c | 1659 | kick_requests(osdc, 0); |
f24e9980 SW |
1660 | } else { |
1661 | dout("ignoring incremental map %u len %d\n", | |
1662 | epoch, maplen); | |
1663 | } | |
1664 | p = next; | |
1665 | nr_maps--; | |
1666 | } | |
1667 | if (newmap) | |
1668 | goto done; | |
1669 | ||
1670 | /* full maps */ | |
1671 | ceph_decode_32_safe(&p, end, nr_maps, bad); | |
1672 | dout(" %d full maps\n", nr_maps); | |
1673 | while (nr_maps) { | |
1674 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); | |
c89136ea SW |
1675 | epoch = ceph_decode_32(&p); |
1676 | maplen = ceph_decode_32(&p); | |
f24e9980 SW |
1677 | ceph_decode_need(&p, end, maplen, bad); |
1678 | if (nr_maps > 1) { | |
1679 | dout("skipping non-latest full map %u len %d\n", | |
1680 | epoch, maplen); | |
1681 | } else if (osdc->osdmap && osdc->osdmap->epoch >= epoch) { | |
1682 | dout("skipping full map %u len %d, " | |
1683 | "older than our %u\n", epoch, maplen, | |
1684 | osdc->osdmap->epoch); | |
1685 | } else { | |
38d6453c SW |
1686 | int skipped_map = 0; |
1687 | ||
f24e9980 SW |
1688 | dout("taking full map %u len %d\n", epoch, maplen); |
1689 | newmap = osdmap_decode(&p, p+maplen); | |
1690 | if (IS_ERR(newmap)) { | |
1691 | err = PTR_ERR(newmap); | |
1692 | goto bad; | |
1693 | } | |
30dc6381 | 1694 | BUG_ON(!newmap); |
f24e9980 SW |
1695 | oldmap = osdc->osdmap; |
1696 | osdc->osdmap = newmap; | |
38d6453c SW |
1697 | if (oldmap) { |
1698 | if (oldmap->epoch + 1 < newmap->epoch) | |
1699 | skipped_map = 1; | |
f24e9980 | 1700 | ceph_osdmap_destroy(oldmap); |
38d6453c SW |
1701 | } |
1702 | kick_requests(osdc, skipped_map); | |
f24e9980 SW |
1703 | } |
1704 | p += maplen; | |
1705 | nr_maps--; | |
1706 | } | |
1707 | ||
1708 | done: | |
1709 | downgrade_write(&osdc->map_sem); | |
1710 | ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); | |
cd634fb6 SW |
1711 | |
1712 | /* | |
1713 | * subscribe to subsequent osdmap updates if full to ensure | |
1714 | * we find out when we are no longer full and stop returning | |
1715 | * ENOSPC. | |
1716 | */ | |
1717 | if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) | |
1718 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1719 | ||
f9d25199 AE |
1720 | mutex_lock(&osdc->request_mutex); |
1721 | __send_queued(osdc); | |
1722 | mutex_unlock(&osdc->request_mutex); | |
f24e9980 | 1723 | up_read(&osdc->map_sem); |
03066f23 | 1724 | wake_up_all(&osdc->client->auth_wq); |
f24e9980 SW |
1725 | return; |
1726 | ||
1727 | bad: | |
1728 | pr_err("osdc handle_map corrupt msg\n"); | |
9ec7cab1 | 1729 | ceph_msg_dump(msg); |
f24e9980 SW |
1730 | up_write(&osdc->map_sem); |
1731 | return; | |
1732 | } | |
1733 | ||
a40c4f10 YS |
1734 | /* |
1735 | * watch/notify callback event infrastructure | |
1736 | * | |
1737 | * These callbacks are used both for watch and notify operations. | |
1738 | */ | |
1739 | static void __release_event(struct kref *kref) | |
1740 | { | |
1741 | struct ceph_osd_event *event = | |
1742 | container_of(kref, struct ceph_osd_event, kref); | |
1743 | ||
1744 | dout("__release_event %p\n", event); | |
1745 | kfree(event); | |
1746 | } | |
1747 | ||
1748 | static void get_event(struct ceph_osd_event *event) | |
1749 | { | |
1750 | kref_get(&event->kref); | |
1751 | } | |
1752 | ||
1753 | void ceph_osdc_put_event(struct ceph_osd_event *event) | |
1754 | { | |
1755 | kref_put(&event->kref, __release_event); | |
1756 | } | |
1757 | EXPORT_SYMBOL(ceph_osdc_put_event); | |
1758 | ||
1759 | static void __insert_event(struct ceph_osd_client *osdc, | |
1760 | struct ceph_osd_event *new) | |
1761 | { | |
1762 | struct rb_node **p = &osdc->event_tree.rb_node; | |
1763 | struct rb_node *parent = NULL; | |
1764 | struct ceph_osd_event *event = NULL; | |
1765 | ||
1766 | while (*p) { | |
1767 | parent = *p; | |
1768 | event = rb_entry(parent, struct ceph_osd_event, node); | |
1769 | if (new->cookie < event->cookie) | |
1770 | p = &(*p)->rb_left; | |
1771 | else if (new->cookie > event->cookie) | |
1772 | p = &(*p)->rb_right; | |
1773 | else | |
1774 | BUG(); | |
1775 | } | |
1776 | ||
1777 | rb_link_node(&new->node, parent, p); | |
1778 | rb_insert_color(&new->node, &osdc->event_tree); | |
1779 | } | |
1780 | ||
1781 | static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, | |
1782 | u64 cookie) | |
1783 | { | |
1784 | struct rb_node **p = &osdc->event_tree.rb_node; | |
1785 | struct rb_node *parent = NULL; | |
1786 | struct ceph_osd_event *event = NULL; | |
1787 | ||
1788 | while (*p) { | |
1789 | parent = *p; | |
1790 | event = rb_entry(parent, struct ceph_osd_event, node); | |
1791 | if (cookie < event->cookie) | |
1792 | p = &(*p)->rb_left; | |
1793 | else if (cookie > event->cookie) | |
1794 | p = &(*p)->rb_right; | |
1795 | else | |
1796 | return event; | |
1797 | } | |
1798 | return NULL; | |
1799 | } | |
1800 | ||
1801 | static void __remove_event(struct ceph_osd_event *event) | |
1802 | { | |
1803 | struct ceph_osd_client *osdc = event->osdc; | |
1804 | ||
1805 | if (!RB_EMPTY_NODE(&event->node)) { | |
1806 | dout("__remove_event removed %p\n", event); | |
1807 | rb_erase(&event->node, &osdc->event_tree); | |
1808 | ceph_osdc_put_event(event); | |
1809 | } else { | |
1810 | dout("__remove_event didn't remove %p\n", event); | |
1811 | } | |
1812 | } | |
1813 | ||
1814 | int ceph_osdc_create_event(struct ceph_osd_client *osdc, | |
1815 | void (*event_cb)(u64, u64, u8, void *), | |
3c663bbd | 1816 | void *data, struct ceph_osd_event **pevent) |
a40c4f10 YS |
1817 | { |
1818 | struct ceph_osd_event *event; | |
1819 | ||
1820 | event = kmalloc(sizeof(*event), GFP_NOIO); | |
1821 | if (!event) | |
1822 | return -ENOMEM; | |
1823 | ||
1824 | dout("create_event %p\n", event); | |
1825 | event->cb = event_cb; | |
3c663bbd | 1826 | event->one_shot = 0; |
a40c4f10 YS |
1827 | event->data = data; |
1828 | event->osdc = osdc; | |
1829 | INIT_LIST_HEAD(&event->osd_node); | |
3ee5234d | 1830 | RB_CLEAR_NODE(&event->node); |
a40c4f10 YS |
1831 | kref_init(&event->kref); /* one ref for us */ |
1832 | kref_get(&event->kref); /* one ref for the caller */ | |
a40c4f10 YS |
1833 | |
1834 | spin_lock(&osdc->event_lock); | |
1835 | event->cookie = ++osdc->event_count; | |
1836 | __insert_event(osdc, event); | |
1837 | spin_unlock(&osdc->event_lock); | |
1838 | ||
1839 | *pevent = event; | |
1840 | return 0; | |
1841 | } | |
1842 | EXPORT_SYMBOL(ceph_osdc_create_event); | |
1843 | ||
1844 | void ceph_osdc_cancel_event(struct ceph_osd_event *event) | |
1845 | { | |
1846 | struct ceph_osd_client *osdc = event->osdc; | |
1847 | ||
1848 | dout("cancel_event %p\n", event); | |
1849 | spin_lock(&osdc->event_lock); | |
1850 | __remove_event(event); | |
1851 | spin_unlock(&osdc->event_lock); | |
1852 | ceph_osdc_put_event(event); /* caller's */ | |
1853 | } | |
1854 | EXPORT_SYMBOL(ceph_osdc_cancel_event); | |
1855 | ||
1856 | ||
1857 | static void do_event_work(struct work_struct *work) | |
1858 | { | |
1859 | struct ceph_osd_event_work *event_work = | |
1860 | container_of(work, struct ceph_osd_event_work, work); | |
1861 | struct ceph_osd_event *event = event_work->event; | |
1862 | u64 ver = event_work->ver; | |
1863 | u64 notify_id = event_work->notify_id; | |
1864 | u8 opcode = event_work->opcode; | |
1865 | ||
1866 | dout("do_event_work completing %p\n", event); | |
1867 | event->cb(ver, notify_id, opcode, event->data); | |
a40c4f10 YS |
1868 | dout("do_event_work completed %p\n", event); |
1869 | ceph_osdc_put_event(event); | |
1870 | kfree(event_work); | |
1871 | } | |
1872 | ||
1873 | ||
1874 | /* | |
1875 | * Process osd watch notifications | |
1876 | */ | |
3c663bbd AE |
1877 | static void handle_watch_notify(struct ceph_osd_client *osdc, |
1878 | struct ceph_msg *msg) | |
a40c4f10 YS |
1879 | { |
1880 | void *p, *end; | |
1881 | u8 proto_ver; | |
1882 | u64 cookie, ver, notify_id; | |
1883 | u8 opcode; | |
1884 | struct ceph_osd_event *event; | |
1885 | struct ceph_osd_event_work *event_work; | |
1886 | ||
1887 | p = msg->front.iov_base; | |
1888 | end = p + msg->front.iov_len; | |
1889 | ||
1890 | ceph_decode_8_safe(&p, end, proto_ver, bad); | |
1891 | ceph_decode_8_safe(&p, end, opcode, bad); | |
1892 | ceph_decode_64_safe(&p, end, cookie, bad); | |
1893 | ceph_decode_64_safe(&p, end, ver, bad); | |
1894 | ceph_decode_64_safe(&p, end, notify_id, bad); | |
1895 | ||
1896 | spin_lock(&osdc->event_lock); | |
1897 | event = __find_event(osdc, cookie); | |
1898 | if (event) { | |
3c663bbd | 1899 | BUG_ON(event->one_shot); |
a40c4f10 | 1900 | get_event(event); |
a40c4f10 YS |
1901 | } |
1902 | spin_unlock(&osdc->event_lock); | |
1903 | dout("handle_watch_notify cookie %lld ver %lld event %p\n", | |
1904 | cookie, ver, event); | |
1905 | if (event) { | |
1906 | event_work = kmalloc(sizeof(*event_work), GFP_NOIO); | |
a40c4f10 YS |
1907 | if (!event_work) { |
1908 | dout("ERROR: could not allocate event_work\n"); | |
1909 | goto done_err; | |
1910 | } | |
6b0ae409 | 1911 | INIT_WORK(&event_work->work, do_event_work); |
a40c4f10 YS |
1912 | event_work->event = event; |
1913 | event_work->ver = ver; | |
1914 | event_work->notify_id = notify_id; | |
1915 | event_work->opcode = opcode; | |
1916 | if (!queue_work(osdc->notify_wq, &event_work->work)) { | |
1917 | dout("WARNING: failed to queue notify event work\n"); | |
1918 | goto done_err; | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | return; | |
1923 | ||
1924 | done_err: | |
a40c4f10 YS |
1925 | ceph_osdc_put_event(event); |
1926 | return; | |
1927 | ||
1928 | bad: | |
1929 | pr_err("osdc handle_watch_notify corrupt msg\n"); | |
1930 | return; | |
1931 | } | |
1932 | ||
70636773 AE |
1933 | static void ceph_osdc_msg_data_set(struct ceph_msg *msg, |
1934 | struct ceph_osd_data *osd_data) | |
f24e9980 | 1935 | { |
23c08a9c AE |
1936 | u64 length = ceph_osd_data_length(osd_data); |
1937 | ||
0fff87ec | 1938 | if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { |
23c08a9c AE |
1939 | BUG_ON(length > (u64) SIZE_MAX); |
1940 | if (length) | |
70636773 | 1941 | ceph_msg_data_set_pages(msg, osd_data->pages, |
23c08a9c | 1942 | length, osd_data->alignment); |
9a5e6d09 | 1943 | } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { |
23c08a9c | 1944 | BUG_ON(!length); |
9a5e6d09 | 1945 | ceph_msg_data_set_pagelist(msg, osd_data->pagelist); |
68b4476b | 1946 | #ifdef CONFIG_BLOCK |
0fff87ec | 1947 | } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { |
23c08a9c | 1948 | ceph_msg_data_set_bio(msg, osd_data->bio, length); |
68b4476b | 1949 | #endif |
2ac2b7a6 | 1950 | } else { |
0fff87ec | 1951 | BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); |
2ac2b7a6 | 1952 | } |
70636773 AE |
1953 | } |
1954 | ||
1955 | /* | |
1956 | * Register request, send initial attempt. | |
1957 | */ | |
1958 | int ceph_osdc_start_request(struct ceph_osd_client *osdc, | |
1959 | struct ceph_osd_request *req, | |
1960 | bool nofail) | |
1961 | { | |
1962 | int rc = 0; | |
1963 | ||
1964 | /* Set up response incoming data and request outgoing data fields */ | |
1965 | ||
1966 | ceph_osdc_msg_data_set(req->r_reply, &req->r_data_in); | |
1967 | ceph_osdc_msg_data_set(req->r_request, &req->r_data_out); | |
f24e9980 | 1968 | |
f24e9980 SW |
1969 | down_read(&osdc->map_sem); |
1970 | mutex_lock(&osdc->request_mutex); | |
dc4b870c | 1971 | __register_request(osdc, req); |
92451b49 AE |
1972 | WARN_ON(req->r_sent); |
1973 | rc = __map_request(osdc, req, 0); | |
1974 | if (rc < 0) { | |
1975 | if (nofail) { | |
1976 | dout("osdc_start_request failed map, " | |
1977 | " will retry %lld\n", req->r_tid); | |
1978 | rc = 0; | |
f24e9980 | 1979 | } |
92451b49 | 1980 | goto out_unlock; |
f24e9980 | 1981 | } |
92451b49 AE |
1982 | if (req->r_osd == NULL) { |
1983 | dout("send_request %p no up osds in pg\n", req); | |
1984 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1985 | } else { | |
7e2766a1 | 1986 | __send_queued(osdc); |
92451b49 AE |
1987 | } |
1988 | rc = 0; | |
234af26f | 1989 | out_unlock: |
f24e9980 SW |
1990 | mutex_unlock(&osdc->request_mutex); |
1991 | up_read(&osdc->map_sem); | |
1992 | return rc; | |
1993 | } | |
3d14c5d2 | 1994 | EXPORT_SYMBOL(ceph_osdc_start_request); |
f24e9980 SW |
1995 | |
1996 | /* | |
1997 | * wait for a request to complete | |
1998 | */ | |
1999 | int ceph_osdc_wait_request(struct ceph_osd_client *osdc, | |
2000 | struct ceph_osd_request *req) | |
2001 | { | |
2002 | int rc; | |
2003 | ||
2004 | rc = wait_for_completion_interruptible(&req->r_completion); | |
2005 | if (rc < 0) { | |
2006 | mutex_lock(&osdc->request_mutex); | |
2007 | __cancel_request(req); | |
529cfcc4 | 2008 | __unregister_request(osdc, req); |
f24e9980 | 2009 | mutex_unlock(&osdc->request_mutex); |
25845472 | 2010 | complete_request(req); |
529cfcc4 | 2011 | dout("wait_request tid %llu canceled/timed out\n", req->r_tid); |
f24e9980 SW |
2012 | return rc; |
2013 | } | |
2014 | ||
2015 | dout("wait_request tid %llu result %d\n", req->r_tid, req->r_result); | |
2016 | return req->r_result; | |
2017 | } | |
3d14c5d2 | 2018 | EXPORT_SYMBOL(ceph_osdc_wait_request); |
f24e9980 SW |
2019 | |
2020 | /* | |
2021 | * sync - wait for all in-flight requests to flush. avoid starvation. | |
2022 | */ | |
2023 | void ceph_osdc_sync(struct ceph_osd_client *osdc) | |
2024 | { | |
2025 | struct ceph_osd_request *req; | |
2026 | u64 last_tid, next_tid = 0; | |
2027 | ||
2028 | mutex_lock(&osdc->request_mutex); | |
2029 | last_tid = osdc->last_tid; | |
2030 | while (1) { | |
2031 | req = __lookup_request_ge(osdc, next_tid); | |
2032 | if (!req) | |
2033 | break; | |
2034 | if (req->r_tid > last_tid) | |
2035 | break; | |
2036 | ||
2037 | next_tid = req->r_tid + 1; | |
2038 | if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) | |
2039 | continue; | |
2040 | ||
2041 | ceph_osdc_get_request(req); | |
2042 | mutex_unlock(&osdc->request_mutex); | |
2043 | dout("sync waiting on tid %llu (last is %llu)\n", | |
2044 | req->r_tid, last_tid); | |
2045 | wait_for_completion(&req->r_safe_completion); | |
2046 | mutex_lock(&osdc->request_mutex); | |
2047 | ceph_osdc_put_request(req); | |
2048 | } | |
2049 | mutex_unlock(&osdc->request_mutex); | |
2050 | dout("sync done (thru tid %llu)\n", last_tid); | |
2051 | } | |
3d14c5d2 | 2052 | EXPORT_SYMBOL(ceph_osdc_sync); |
f24e9980 SW |
2053 | |
2054 | /* | |
2055 | * init, shutdown | |
2056 | */ | |
2057 | int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) | |
2058 | { | |
2059 | int err; | |
2060 | ||
2061 | dout("init\n"); | |
2062 | osdc->client = client; | |
2063 | osdc->osdmap = NULL; | |
2064 | init_rwsem(&osdc->map_sem); | |
2065 | init_completion(&osdc->map_waiters); | |
2066 | osdc->last_requested_map = 0; | |
2067 | mutex_init(&osdc->request_mutex); | |
f24e9980 SW |
2068 | osdc->last_tid = 0; |
2069 | osdc->osds = RB_ROOT; | |
f5a2041b | 2070 | INIT_LIST_HEAD(&osdc->osd_lru); |
f24e9980 | 2071 | osdc->requests = RB_ROOT; |
422d2cb8 | 2072 | INIT_LIST_HEAD(&osdc->req_lru); |
6f6c7006 SW |
2073 | INIT_LIST_HEAD(&osdc->req_unsent); |
2074 | INIT_LIST_HEAD(&osdc->req_notarget); | |
a40c4f10 | 2075 | INIT_LIST_HEAD(&osdc->req_linger); |
f24e9980 SW |
2076 | osdc->num_requests = 0; |
2077 | INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); | |
f5a2041b | 2078 | INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); |
a40c4f10 YS |
2079 | spin_lock_init(&osdc->event_lock); |
2080 | osdc->event_tree = RB_ROOT; | |
2081 | osdc->event_count = 0; | |
f5a2041b YS |
2082 | |
2083 | schedule_delayed_work(&osdc->osds_timeout_work, | |
3d14c5d2 | 2084 | round_jiffies_relative(osdc->client->options->osd_idle_ttl * HZ)); |
f24e9980 | 2085 | |
5f44f142 | 2086 | err = -ENOMEM; |
f24e9980 SW |
2087 | osdc->req_mempool = mempool_create_kmalloc_pool(10, |
2088 | sizeof(struct ceph_osd_request)); | |
2089 | if (!osdc->req_mempool) | |
5f44f142 | 2090 | goto out; |
f24e9980 | 2091 | |
d50b409f SW |
2092 | err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, |
2093 | OSD_OP_FRONT_LEN, 10, true, | |
4f48280e | 2094 | "osd_op"); |
f24e9980 | 2095 | if (err < 0) |
5f44f142 | 2096 | goto out_mempool; |
d50b409f | 2097 | err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, |
4f48280e SW |
2098 | OSD_OPREPLY_FRONT_LEN, 10, true, |
2099 | "osd_op_reply"); | |
c16e7869 SW |
2100 | if (err < 0) |
2101 | goto out_msgpool; | |
a40c4f10 YS |
2102 | |
2103 | osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); | |
2104 | if (IS_ERR(osdc->notify_wq)) { | |
2105 | err = PTR_ERR(osdc->notify_wq); | |
2106 | osdc->notify_wq = NULL; | |
2107 | goto out_msgpool; | |
2108 | } | |
f24e9980 | 2109 | return 0; |
5f44f142 | 2110 | |
c16e7869 SW |
2111 | out_msgpool: |
2112 | ceph_msgpool_destroy(&osdc->msgpool_op); | |
5f44f142 SW |
2113 | out_mempool: |
2114 | mempool_destroy(osdc->req_mempool); | |
2115 | out: | |
2116 | return err; | |
f24e9980 SW |
2117 | } |
2118 | ||
2119 | void ceph_osdc_stop(struct ceph_osd_client *osdc) | |
2120 | { | |
a40c4f10 YS |
2121 | flush_workqueue(osdc->notify_wq); |
2122 | destroy_workqueue(osdc->notify_wq); | |
f24e9980 | 2123 | cancel_delayed_work_sync(&osdc->timeout_work); |
f5a2041b | 2124 | cancel_delayed_work_sync(&osdc->osds_timeout_work); |
f24e9980 SW |
2125 | if (osdc->osdmap) { |
2126 | ceph_osdmap_destroy(osdc->osdmap); | |
2127 | osdc->osdmap = NULL; | |
2128 | } | |
aca420bc | 2129 | remove_all_osds(osdc); |
f24e9980 SW |
2130 | mempool_destroy(osdc->req_mempool); |
2131 | ceph_msgpool_destroy(&osdc->msgpool_op); | |
c16e7869 | 2132 | ceph_msgpool_destroy(&osdc->msgpool_op_reply); |
f24e9980 SW |
2133 | } |
2134 | ||
2135 | /* | |
2136 | * Read some contiguous pages. If we cross a stripe boundary, shorten | |
2137 | * *plen. Return number of bytes read, or error. | |
2138 | */ | |
2139 | int ceph_osdc_readpages(struct ceph_osd_client *osdc, | |
2140 | struct ceph_vino vino, struct ceph_file_layout *layout, | |
2141 | u64 off, u64 *plen, | |
2142 | u32 truncate_seq, u64 truncate_size, | |
b7495fc2 | 2143 | struct page **pages, int num_pages, int page_align) |
f24e9980 SW |
2144 | { |
2145 | struct ceph_osd_request *req; | |
2146 | int rc = 0; | |
2147 | ||
2148 | dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, | |
2149 | vino.snap, off, *plen); | |
79528734 | 2150 | req = ceph_osdc_new_request(osdc, layout, vino, off, plen, 1, |
f24e9980 | 2151 | CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, |
acead002 | 2152 | NULL, truncate_seq, truncate_size, |
153e5167 | 2153 | false); |
6816282d SW |
2154 | if (IS_ERR(req)) |
2155 | return PTR_ERR(req); | |
f24e9980 SW |
2156 | |
2157 | /* it may be a short read due to an object boundary */ | |
0fff87ec | 2158 | |
43bfe5de AE |
2159 | ceph_osd_data_pages_init(&req->r_data_in, pages, *plen, page_align, |
2160 | false, false); | |
f24e9980 | 2161 | |
e0c59487 | 2162 | dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", |
43bfe5de | 2163 | off, *plen, *plen, page_align); |
f24e9980 | 2164 | |
79528734 | 2165 | ceph_osdc_build_request(req, off, NULL, vino.snap, NULL); |
02ee07d3 | 2166 | |
f24e9980 SW |
2167 | rc = ceph_osdc_start_request(osdc, req, false); |
2168 | if (!rc) | |
2169 | rc = ceph_osdc_wait_request(osdc, req); | |
2170 | ||
2171 | ceph_osdc_put_request(req); | |
2172 | dout("readpages result %d\n", rc); | |
2173 | return rc; | |
2174 | } | |
3d14c5d2 | 2175 | EXPORT_SYMBOL(ceph_osdc_readpages); |
f24e9980 SW |
2176 | |
2177 | /* | |
2178 | * do a synchronous write on N pages | |
2179 | */ | |
2180 | int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, | |
2181 | struct ceph_file_layout *layout, | |
2182 | struct ceph_snap_context *snapc, | |
2183 | u64 off, u64 len, | |
2184 | u32 truncate_seq, u64 truncate_size, | |
2185 | struct timespec *mtime, | |
24808826 | 2186 | struct page **pages, int num_pages) |
f24e9980 SW |
2187 | { |
2188 | struct ceph_osd_request *req; | |
2189 | int rc = 0; | |
b7495fc2 | 2190 | int page_align = off & ~PAGE_MASK; |
f24e9980 | 2191 | |
acead002 | 2192 | BUG_ON(vino.snap != CEPH_NOSNAP); /* snapshots aren't writeable */ |
79528734 | 2193 | req = ceph_osdc_new_request(osdc, layout, vino, off, &len, 1, |
f24e9980 | 2194 | CEPH_OSD_OP_WRITE, |
24808826 | 2195 | CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, |
acead002 | 2196 | snapc, truncate_seq, truncate_size, |
153e5167 | 2197 | true); |
6816282d SW |
2198 | if (IS_ERR(req)) |
2199 | return PTR_ERR(req); | |
f24e9980 SW |
2200 | |
2201 | /* it may be a short write due to an object boundary */ | |
43bfe5de AE |
2202 | ceph_osd_data_pages_init(&req->r_data_out, pages, len, page_align, |
2203 | false, false); | |
2204 | dout("writepages %llu~%llu (%llu bytes)\n", off, len, len); | |
f24e9980 | 2205 | |
79528734 | 2206 | ceph_osdc_build_request(req, off, snapc, CEPH_NOSNAP, mtime); |
02ee07d3 | 2207 | |
87f979d3 | 2208 | rc = ceph_osdc_start_request(osdc, req, true); |
f24e9980 SW |
2209 | if (!rc) |
2210 | rc = ceph_osdc_wait_request(osdc, req); | |
2211 | ||
2212 | ceph_osdc_put_request(req); | |
2213 | if (rc == 0) | |
2214 | rc = len; | |
2215 | dout("writepages result %d\n", rc); | |
2216 | return rc; | |
2217 | } | |
3d14c5d2 | 2218 | EXPORT_SYMBOL(ceph_osdc_writepages); |
f24e9980 SW |
2219 | |
2220 | /* | |
2221 | * handle incoming message | |
2222 | */ | |
2223 | static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) | |
2224 | { | |
2225 | struct ceph_osd *osd = con->private; | |
32c895e7 | 2226 | struct ceph_osd_client *osdc; |
f24e9980 SW |
2227 | int type = le16_to_cpu(msg->hdr.type); |
2228 | ||
2229 | if (!osd) | |
4a32f93d | 2230 | goto out; |
32c895e7 | 2231 | osdc = osd->o_osdc; |
f24e9980 SW |
2232 | |
2233 | switch (type) { | |
2234 | case CEPH_MSG_OSD_MAP: | |
2235 | ceph_osdc_handle_map(osdc, msg); | |
2236 | break; | |
2237 | case CEPH_MSG_OSD_OPREPLY: | |
350b1c32 | 2238 | handle_reply(osdc, msg, con); |
f24e9980 | 2239 | break; |
a40c4f10 YS |
2240 | case CEPH_MSG_WATCH_NOTIFY: |
2241 | handle_watch_notify(osdc, msg); | |
2242 | break; | |
f24e9980 SW |
2243 | |
2244 | default: | |
2245 | pr_err("received unknown message type %d %s\n", type, | |
2246 | ceph_msg_type_name(type)); | |
2247 | } | |
4a32f93d | 2248 | out: |
f24e9980 SW |
2249 | ceph_msg_put(msg); |
2250 | } | |
2251 | ||
5b3a4db3 | 2252 | /* |
21b667f6 SW |
2253 | * lookup and return message for incoming reply. set up reply message |
2254 | * pages. | |
5b3a4db3 SW |
2255 | */ |
2256 | static struct ceph_msg *get_reply(struct ceph_connection *con, | |
2450418c YS |
2257 | struct ceph_msg_header *hdr, |
2258 | int *skip) | |
f24e9980 SW |
2259 | { |
2260 | struct ceph_osd *osd = con->private; | |
2261 | struct ceph_osd_client *osdc = osd->o_osdc; | |
2450418c | 2262 | struct ceph_msg *m; |
0547a9b3 | 2263 | struct ceph_osd_request *req; |
5b3a4db3 SW |
2264 | int front = le32_to_cpu(hdr->front_len); |
2265 | int data_len = le32_to_cpu(hdr->data_len); | |
0547a9b3 | 2266 | u64 tid; |
f24e9980 | 2267 | |
0547a9b3 YS |
2268 | tid = le64_to_cpu(hdr->tid); |
2269 | mutex_lock(&osdc->request_mutex); | |
2270 | req = __lookup_request(osdc, tid); | |
2271 | if (!req) { | |
2272 | *skip = 1; | |
2273 | m = NULL; | |
756a16a5 SW |
2274 | dout("get_reply unknown tid %llu from osd%d\n", tid, |
2275 | osd->o_osd); | |
0547a9b3 YS |
2276 | goto out; |
2277 | } | |
c16e7869 | 2278 | |
ace6d3a9 | 2279 | if (req->r_reply->con) |
8921d114 | 2280 | dout("%s revoking msg %p from old con %p\n", __func__, |
ace6d3a9 AE |
2281 | req->r_reply, req->r_reply->con); |
2282 | ceph_msg_revoke_incoming(req->r_reply); | |
0547a9b3 | 2283 | |
c16e7869 SW |
2284 | if (front > req->r_reply->front.iov_len) { |
2285 | pr_warning("get_reply front %d > preallocated %d\n", | |
2286 | front, (int)req->r_reply->front.iov_len); | |
b61c2763 | 2287 | m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, GFP_NOFS, false); |
a79832f2 | 2288 | if (!m) |
c16e7869 SW |
2289 | goto out; |
2290 | ceph_msg_put(req->r_reply); | |
2291 | req->r_reply = m; | |
2292 | } | |
2293 | m = ceph_msg_get(req->r_reply); | |
2294 | ||
0547a9b3 | 2295 | if (data_len > 0) { |
0fff87ec AE |
2296 | struct ceph_osd_data *osd_data = &req->r_data_in; |
2297 | ||
2298 | if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { | |
0fff87ec | 2299 | if (osd_data->pages && |
e0c59487 | 2300 | unlikely(osd_data->length < data_len)) { |
2ac2b7a6 | 2301 | |
e0c59487 AE |
2302 | pr_warning("tid %lld reply has %d bytes " |
2303 | "we had only %llu bytes ready\n", | |
2304 | tid, data_len, osd_data->length); | |
2ac2b7a6 AE |
2305 | *skip = 1; |
2306 | ceph_msg_put(m); | |
2307 | m = NULL; | |
2308 | goto out; | |
2309 | } | |
2ac2b7a6 | 2310 | } |
0547a9b3 | 2311 | } |
5b3a4db3 | 2312 | *skip = 0; |
c16e7869 | 2313 | dout("get_reply tid %lld %p\n", tid, m); |
0547a9b3 YS |
2314 | |
2315 | out: | |
2316 | mutex_unlock(&osdc->request_mutex); | |
2450418c | 2317 | return m; |
5b3a4db3 SW |
2318 | |
2319 | } | |
2320 | ||
2321 | static struct ceph_msg *alloc_msg(struct ceph_connection *con, | |
2322 | struct ceph_msg_header *hdr, | |
2323 | int *skip) | |
2324 | { | |
2325 | struct ceph_osd *osd = con->private; | |
2326 | int type = le16_to_cpu(hdr->type); | |
2327 | int front = le32_to_cpu(hdr->front_len); | |
2328 | ||
1c20f2d2 | 2329 | *skip = 0; |
5b3a4db3 SW |
2330 | switch (type) { |
2331 | case CEPH_MSG_OSD_MAP: | |
a40c4f10 | 2332 | case CEPH_MSG_WATCH_NOTIFY: |
b61c2763 | 2333 | return ceph_msg_new(type, front, GFP_NOFS, false); |
5b3a4db3 SW |
2334 | case CEPH_MSG_OSD_OPREPLY: |
2335 | return get_reply(con, hdr, skip); | |
2336 | default: | |
2337 | pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, | |
2338 | osd->o_osd); | |
2339 | *skip = 1; | |
2340 | return NULL; | |
2341 | } | |
f24e9980 SW |
2342 | } |
2343 | ||
2344 | /* | |
2345 | * Wrappers to refcount containing ceph_osd struct | |
2346 | */ | |
2347 | static struct ceph_connection *get_osd_con(struct ceph_connection *con) | |
2348 | { | |
2349 | struct ceph_osd *osd = con->private; | |
2350 | if (get_osd(osd)) | |
2351 | return con; | |
2352 | return NULL; | |
2353 | } | |
2354 | ||
2355 | static void put_osd_con(struct ceph_connection *con) | |
2356 | { | |
2357 | struct ceph_osd *osd = con->private; | |
2358 | put_osd(osd); | |
2359 | } | |
2360 | ||
4e7a5dcd SW |
2361 | /* |
2362 | * authentication | |
2363 | */ | |
a3530df3 AE |
2364 | /* |
2365 | * Note: returned pointer is the address of a structure that's | |
2366 | * managed separately. Caller must *not* attempt to free it. | |
2367 | */ | |
2368 | static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, | |
8f43fb53 | 2369 | int *proto, int force_new) |
4e7a5dcd SW |
2370 | { |
2371 | struct ceph_osd *o = con->private; | |
2372 | struct ceph_osd_client *osdc = o->o_osdc; | |
2373 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
74f1869f | 2374 | struct ceph_auth_handshake *auth = &o->o_auth; |
4e7a5dcd | 2375 | |
74f1869f | 2376 | if (force_new && auth->authorizer) { |
27859f97 | 2377 | ceph_auth_destroy_authorizer(ac, auth->authorizer); |
74f1869f AE |
2378 | auth->authorizer = NULL; |
2379 | } | |
27859f97 SW |
2380 | if (!auth->authorizer) { |
2381 | int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, | |
2382 | auth); | |
4e7a5dcd | 2383 | if (ret) |
a3530df3 | 2384 | return ERR_PTR(ret); |
27859f97 SW |
2385 | } else { |
2386 | int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, | |
0bed9b5c SW |
2387 | auth); |
2388 | if (ret) | |
2389 | return ERR_PTR(ret); | |
4e7a5dcd | 2390 | } |
4e7a5dcd | 2391 | *proto = ac->protocol; |
74f1869f | 2392 | |
a3530df3 | 2393 | return auth; |
4e7a5dcd SW |
2394 | } |
2395 | ||
2396 | ||
2397 | static int verify_authorizer_reply(struct ceph_connection *con, int len) | |
2398 | { | |
2399 | struct ceph_osd *o = con->private; | |
2400 | struct ceph_osd_client *osdc = o->o_osdc; | |
2401 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
2402 | ||
27859f97 | 2403 | return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); |
4e7a5dcd SW |
2404 | } |
2405 | ||
9bd2e6f8 SW |
2406 | static int invalidate_authorizer(struct ceph_connection *con) |
2407 | { | |
2408 | struct ceph_osd *o = con->private; | |
2409 | struct ceph_osd_client *osdc = o->o_osdc; | |
2410 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
2411 | ||
27859f97 | 2412 | ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); |
9bd2e6f8 SW |
2413 | return ceph_monc_validate_auth(&osdc->client->monc); |
2414 | } | |
4e7a5dcd | 2415 | |
9e32789f | 2416 | static const struct ceph_connection_operations osd_con_ops = { |
f24e9980 SW |
2417 | .get = get_osd_con, |
2418 | .put = put_osd_con, | |
2419 | .dispatch = dispatch, | |
4e7a5dcd SW |
2420 | .get_authorizer = get_authorizer, |
2421 | .verify_authorizer_reply = verify_authorizer_reply, | |
9bd2e6f8 | 2422 | .invalidate_authorizer = invalidate_authorizer, |
f24e9980 | 2423 | .alloc_msg = alloc_msg, |
81b024e7 | 2424 | .fault = osd_reset, |
f24e9980 | 2425 | }; |