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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 | 34 | |
68b4476b YS |
35 | static int op_has_extent(int op) |
36 | { | |
37 | return (op == CEPH_OSD_OP_READ || | |
38 | op == CEPH_OSD_OP_WRITE); | |
39 | } | |
40 | ||
f24e9980 SW |
41 | /* |
42 | * Implement client access to distributed object storage cluster. | |
43 | * | |
44 | * All data objects are stored within a cluster/cloud of OSDs, or | |
45 | * "object storage devices." (Note that Ceph OSDs have _nothing_ to | |
46 | * do with the T10 OSD extensions to SCSI.) Ceph OSDs are simply | |
47 | * remote daemons serving up and coordinating consistent and safe | |
48 | * access to storage. | |
49 | * | |
50 | * Cluster membership and the mapping of data objects onto storage devices | |
51 | * are described by the osd map. | |
52 | * | |
53 | * We keep track of pending OSD requests (read, write), resubmit | |
54 | * requests to different OSDs when the cluster topology/data layout | |
55 | * change, or retry the affected requests when the communications | |
56 | * channel with an OSD is reset. | |
57 | */ | |
58 | ||
59 | /* | |
60 | * calculate the mapping of a file extent onto an object, and fill out the | |
61 | * request accordingly. shorten extent as necessary if it crosses an | |
62 | * object boundary. | |
63 | * | |
64 | * fill osd op in request message. | |
65 | */ | |
dbe0fc41 | 66 | static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, |
75d1c941 AE |
67 | struct ceph_osd_req_op *op, u64 *objnum, |
68 | u64 *objoff, u64 *objlen) | |
f24e9980 | 69 | { |
60e56f13 | 70 | u64 orig_len = *plen; |
d63b77f4 | 71 | int r; |
f24e9980 | 72 | |
60e56f13 | 73 | /* object extent? */ |
75d1c941 AE |
74 | r = ceph_calc_file_object_mapping(layout, off, orig_len, objnum, |
75 | objoff, objlen); | |
d63b77f4 SW |
76 | if (r < 0) |
77 | return r; | |
75d1c941 AE |
78 | if (*objlen < orig_len) { |
79 | *plen = *objlen; | |
60e56f13 AE |
80 | dout(" skipping last %llu, final file extent %llu~%llu\n", |
81 | orig_len - *plen, off, *plen); | |
82 | } | |
83 | ||
84 | if (op_has_extent(op->op)) { | |
85 | u32 osize = le32_to_cpu(layout->fl_object_size); | |
75d1c941 AE |
86 | op->extent.offset = *objoff; |
87 | op->extent.length = *objlen; | |
88 | if (op->extent.truncate_size <= off - *objoff) { | |
60e56f13 AE |
89 | op->extent.truncate_size = 0; |
90 | } else { | |
75d1c941 | 91 | op->extent.truncate_size -= off - *objoff; |
60e56f13 AE |
92 | if (op->extent.truncate_size > osize) |
93 | op->extent.truncate_size = osize; | |
94 | } | |
95 | } | |
60e56f13 AE |
96 | if (op->op == CEPH_OSD_OP_WRITE) |
97 | op->payload_len = *plen; | |
98 | ||
75d1c941 | 99 | dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen); |
f24e9980 | 100 | |
3ff5f385 | 101 | return 0; |
f24e9980 SW |
102 | } |
103 | ||
f24e9980 SW |
104 | /* |
105 | * requests | |
106 | */ | |
415e49a9 | 107 | void ceph_osdc_release_request(struct kref *kref) |
f24e9980 | 108 | { |
e0c59487 | 109 | int num_pages; |
415e49a9 SW |
110 | struct ceph_osd_request *req = container_of(kref, |
111 | struct ceph_osd_request, | |
112 | r_kref); | |
113 | ||
114 | if (req->r_request) | |
115 | ceph_msg_put(req->r_request); | |
0d59ab81 | 116 | if (req->r_con_filling_msg) { |
9cbb1d72 AE |
117 | dout("%s revoking msg %p from con %p\n", __func__, |
118 | req->r_reply, req->r_con_filling_msg); | |
8921d114 | 119 | ceph_msg_revoke_incoming(req->r_reply); |
0d47766f | 120 | req->r_con_filling_msg->ops->put(req->r_con_filling_msg); |
9cbb1d72 | 121 | req->r_con_filling_msg = NULL; |
350b1c32 | 122 | } |
ab8cb34a AE |
123 | if (req->r_reply) |
124 | ceph_msg_put(req->r_reply); | |
0fff87ec AE |
125 | |
126 | if (req->r_data_in.type == CEPH_OSD_DATA_TYPE_PAGES && | |
e0c59487 AE |
127 | req->r_data_in.own_pages) { |
128 | num_pages = calc_pages_for((u64)req->r_data_in.alignment, | |
129 | (u64)req->r_data_in.length); | |
130 | ceph_release_page_vector(req->r_data_in.pages, num_pages); | |
131 | } | |
0fff87ec | 132 | if (req->r_data_out.type == CEPH_OSD_DATA_TYPE_PAGES && |
e0c59487 AE |
133 | req->r_data_out.own_pages) { |
134 | num_pages = calc_pages_for((u64)req->r_data_out.alignment, | |
135 | (u64)req->r_data_out.length); | |
136 | ceph_release_page_vector(req->r_data_out.pages, num_pages); | |
137 | } | |
0fff87ec | 138 | |
415e49a9 SW |
139 | ceph_put_snap_context(req->r_snapc); |
140 | if (req->r_mempool) | |
141 | mempool_free(req, req->r_osdc->req_mempool); | |
142 | else | |
143 | kfree(req); | |
f24e9980 | 144 | } |
3d14c5d2 | 145 | EXPORT_SYMBOL(ceph_osdc_release_request); |
68b4476b | 146 | |
3499e8a5 | 147 | struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, |
f24e9980 | 148 | struct ceph_snap_context *snapc, |
1b83bef2 | 149 | unsigned int num_ops, |
3499e8a5 | 150 | bool use_mempool, |
54a54007 | 151 | gfp_t gfp_flags) |
f24e9980 SW |
152 | { |
153 | struct ceph_osd_request *req; | |
154 | struct ceph_msg *msg; | |
1b83bef2 SW |
155 | size_t msg_size; |
156 | ||
157 | msg_size = 4 + 4 + 8 + 8 + 4+8; | |
158 | msg_size += 2 + 4 + 8 + 4 + 4; /* oloc */ | |
159 | msg_size += 1 + 8 + 4 + 4; /* pg_t */ | |
160 | msg_size += 4 + MAX_OBJ_NAME_SIZE; | |
161 | msg_size += 2 + num_ops*sizeof(struct ceph_osd_op); | |
162 | msg_size += 8; /* snapid */ | |
163 | msg_size += 8; /* snap_seq */ | |
164 | msg_size += 8 * (snapc ? snapc->num_snaps : 0); /* snaps */ | |
165 | msg_size += 4; | |
f24e9980 SW |
166 | |
167 | if (use_mempool) { | |
3499e8a5 | 168 | req = mempool_alloc(osdc->req_mempool, gfp_flags); |
f24e9980 SW |
169 | memset(req, 0, sizeof(*req)); |
170 | } else { | |
3499e8a5 | 171 | req = kzalloc(sizeof(*req), gfp_flags); |
f24e9980 SW |
172 | } |
173 | if (req == NULL) | |
a79832f2 | 174 | return NULL; |
f24e9980 | 175 | |
f24e9980 SW |
176 | req->r_osdc = osdc; |
177 | req->r_mempool = use_mempool; | |
68b4476b | 178 | |
415e49a9 | 179 | kref_init(&req->r_kref); |
f24e9980 SW |
180 | init_completion(&req->r_completion); |
181 | init_completion(&req->r_safe_completion); | |
a978fa20 | 182 | RB_CLEAR_NODE(&req->r_node); |
f24e9980 | 183 | INIT_LIST_HEAD(&req->r_unsafe_item); |
a40c4f10 YS |
184 | INIT_LIST_HEAD(&req->r_linger_item); |
185 | INIT_LIST_HEAD(&req->r_linger_osd); | |
935b639a | 186 | INIT_LIST_HEAD(&req->r_req_lru_item); |
cd43045c SW |
187 | INIT_LIST_HEAD(&req->r_osd_item); |
188 | ||
c16e7869 SW |
189 | /* create reply message */ |
190 | if (use_mempool) | |
191 | msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0); | |
192 | else | |
193 | msg = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, | |
b61c2763 | 194 | OSD_OPREPLY_FRONT_LEN, gfp_flags, true); |
a79832f2 | 195 | if (!msg) { |
c16e7869 | 196 | ceph_osdc_put_request(req); |
a79832f2 | 197 | return NULL; |
c16e7869 SW |
198 | } |
199 | req->r_reply = msg; | |
200 | ||
0fff87ec AE |
201 | req->r_data_in.type = CEPH_OSD_DATA_TYPE_NONE; |
202 | req->r_data_out.type = CEPH_OSD_DATA_TYPE_NONE; | |
d50b409f | 203 | |
c16e7869 | 204 | /* create request message; allow space for oid */ |
f24e9980 | 205 | if (use_mempool) |
8f3bc053 | 206 | msg = ceph_msgpool_get(&osdc->msgpool_op, 0); |
f24e9980 | 207 | else |
b61c2763 | 208 | msg = ceph_msg_new(CEPH_MSG_OSD_OP, msg_size, gfp_flags, true); |
a79832f2 | 209 | if (!msg) { |
f24e9980 | 210 | ceph_osdc_put_request(req); |
a79832f2 | 211 | return NULL; |
f24e9980 | 212 | } |
68b4476b | 213 | |
f24e9980 | 214 | memset(msg->front.iov_base, 0, msg->front.iov_len); |
3499e8a5 YS |
215 | |
216 | req->r_request = msg; | |
3499e8a5 YS |
217 | |
218 | return req; | |
219 | } | |
3d14c5d2 | 220 | EXPORT_SYMBOL(ceph_osdc_alloc_request); |
3499e8a5 | 221 | |
a8dd0a37 | 222 | static bool osd_req_opcode_valid(u16 opcode) |
68b4476b | 223 | { |
a8dd0a37 | 224 | switch (opcode) { |
68b4476b | 225 | case CEPH_OSD_OP_READ: |
a8dd0a37 | 226 | case CEPH_OSD_OP_STAT: |
4c46459c AE |
227 | case CEPH_OSD_OP_MAPEXT: |
228 | case CEPH_OSD_OP_MASKTRUNC: | |
229 | case CEPH_OSD_OP_SPARSE_READ: | |
a9f36c3e | 230 | case CEPH_OSD_OP_NOTIFY: |
a8dd0a37 | 231 | case CEPH_OSD_OP_NOTIFY_ACK: |
4c46459c | 232 | case CEPH_OSD_OP_ASSERT_VER: |
a8dd0a37 | 233 | case CEPH_OSD_OP_WRITE: |
4c46459c AE |
234 | case CEPH_OSD_OP_WRITEFULL: |
235 | case CEPH_OSD_OP_TRUNCATE: | |
236 | case CEPH_OSD_OP_ZERO: | |
237 | case CEPH_OSD_OP_DELETE: | |
238 | case CEPH_OSD_OP_APPEND: | |
a8dd0a37 | 239 | case CEPH_OSD_OP_STARTSYNC: |
4c46459c AE |
240 | case CEPH_OSD_OP_SETTRUNC: |
241 | case CEPH_OSD_OP_TRIMTRUNC: | |
242 | case CEPH_OSD_OP_TMAPUP: | |
243 | case CEPH_OSD_OP_TMAPPUT: | |
244 | case CEPH_OSD_OP_TMAPGET: | |
245 | case CEPH_OSD_OP_CREATE: | |
a9f36c3e | 246 | case CEPH_OSD_OP_ROLLBACK: |
a8dd0a37 | 247 | case CEPH_OSD_OP_WATCH: |
4c46459c AE |
248 | case CEPH_OSD_OP_OMAPGETKEYS: |
249 | case CEPH_OSD_OP_OMAPGETVALS: | |
250 | case CEPH_OSD_OP_OMAPGETHEADER: | |
251 | case CEPH_OSD_OP_OMAPGETVALSBYKEYS: | |
4c46459c AE |
252 | case CEPH_OSD_OP_OMAPSETVALS: |
253 | case CEPH_OSD_OP_OMAPSETHEADER: | |
254 | case CEPH_OSD_OP_OMAPCLEAR: | |
255 | case CEPH_OSD_OP_OMAPRMKEYS: | |
256 | case CEPH_OSD_OP_OMAP_CMP: | |
257 | case CEPH_OSD_OP_CLONERANGE: | |
258 | case CEPH_OSD_OP_ASSERT_SRC_VERSION: | |
259 | case CEPH_OSD_OP_SRC_CMPXATTR: | |
a9f36c3e | 260 | case CEPH_OSD_OP_GETXATTR: |
4c46459c | 261 | case CEPH_OSD_OP_GETXATTRS: |
a9f36c3e AE |
262 | case CEPH_OSD_OP_CMPXATTR: |
263 | case CEPH_OSD_OP_SETXATTR: | |
4c46459c AE |
264 | case CEPH_OSD_OP_SETXATTRS: |
265 | case CEPH_OSD_OP_RESETXATTRS: | |
266 | case CEPH_OSD_OP_RMXATTR: | |
267 | case CEPH_OSD_OP_PULL: | |
268 | case CEPH_OSD_OP_PUSH: | |
269 | case CEPH_OSD_OP_BALANCEREADS: | |
270 | case CEPH_OSD_OP_UNBALANCEREADS: | |
271 | case CEPH_OSD_OP_SCRUB: | |
272 | case CEPH_OSD_OP_SCRUB_RESERVE: | |
273 | case CEPH_OSD_OP_SCRUB_UNRESERVE: | |
274 | case CEPH_OSD_OP_SCRUB_STOP: | |
275 | case CEPH_OSD_OP_SCRUB_MAP: | |
276 | case CEPH_OSD_OP_WRLOCK: | |
277 | case CEPH_OSD_OP_WRUNLOCK: | |
278 | case CEPH_OSD_OP_RDLOCK: | |
279 | case CEPH_OSD_OP_RDUNLOCK: | |
280 | case CEPH_OSD_OP_UPLOCK: | |
281 | case CEPH_OSD_OP_DNLOCK: | |
a8dd0a37 | 282 | case CEPH_OSD_OP_CALL: |
4c46459c AE |
283 | case CEPH_OSD_OP_PGLS: |
284 | case CEPH_OSD_OP_PGLS_FILTER: | |
a8dd0a37 AE |
285 | return true; |
286 | default: | |
287 | return false; | |
288 | } | |
289 | } | |
290 | ||
33803f33 AE |
291 | /* |
292 | * This is an osd op init function for opcodes that have no data or | |
293 | * other information associated with them. It also serves as a | |
294 | * common init routine for all the other init functions, below. | |
295 | */ | |
296 | void osd_req_op_init(struct ceph_osd_req_op *op, u16 opcode) | |
297 | { | |
298 | BUG_ON(!osd_req_opcode_valid(opcode)); | |
299 | ||
300 | memset(op, 0, sizeof (*op)); | |
301 | ||
302 | op->op = opcode; | |
303 | } | |
304 | ||
305 | void osd_req_op_extent_init(struct ceph_osd_req_op *op, u16 opcode, | |
306 | u64 offset, u64 length, | |
307 | u64 truncate_size, u32 truncate_seq) | |
308 | { | |
309 | size_t payload_len = 0; | |
310 | ||
311 | BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE); | |
312 | ||
313 | osd_req_op_init(op, opcode); | |
314 | ||
315 | op->extent.offset = offset; | |
316 | op->extent.length = length; | |
317 | op->extent.truncate_size = truncate_size; | |
318 | op->extent.truncate_seq = truncate_seq; | |
319 | if (opcode == CEPH_OSD_OP_WRITE) | |
320 | payload_len += length; | |
321 | ||
322 | op->payload_len = payload_len; | |
323 | } | |
324 | EXPORT_SYMBOL(osd_req_op_extent_init); | |
325 | ||
326 | void osd_req_op_cls_init(struct ceph_osd_req_op *op, u16 opcode, | |
327 | const char *class, const char *method, | |
328 | const void *request_data, size_t request_data_size) | |
329 | { | |
330 | size_t payload_len = 0; | |
331 | size_t size; | |
332 | ||
333 | BUG_ON(opcode != CEPH_OSD_OP_CALL); | |
334 | ||
335 | osd_req_op_init(op, opcode); | |
336 | ||
337 | op->cls.class_name = class; | |
338 | size = strlen(class); | |
339 | BUG_ON(size > (size_t) U8_MAX); | |
340 | op->cls.class_len = size; | |
341 | payload_len += size; | |
342 | ||
343 | op->cls.method_name = method; | |
344 | size = strlen(method); | |
345 | BUG_ON(size > (size_t) U8_MAX); | |
346 | op->cls.method_len = size; | |
347 | payload_len += size; | |
348 | ||
349 | op->cls.indata = request_data; | |
350 | BUG_ON(request_data_size > (size_t) U32_MAX); | |
351 | op->cls.indata_len = (u32) request_data_size; | |
352 | payload_len += request_data_size; | |
353 | ||
354 | op->cls.argc = 0; /* currently unused */ | |
355 | ||
356 | op->payload_len = payload_len; | |
357 | } | |
358 | EXPORT_SYMBOL(osd_req_op_cls_init); | |
359 | ||
360 | void osd_req_op_watch_init(struct ceph_osd_req_op *op, u16 opcode, | |
361 | u64 cookie, u64 version, int flag) | |
362 | { | |
363 | BUG_ON(opcode != CEPH_OSD_OP_NOTIFY_ACK && opcode != CEPH_OSD_OP_WATCH); | |
364 | ||
365 | osd_req_op_init(op, opcode); | |
366 | ||
367 | op->watch.cookie = cookie; | |
368 | /* op->watch.ver = version; */ /* XXX 3847 */ | |
369 | op->watch.ver = cpu_to_le64(version); | |
370 | if (opcode == CEPH_OSD_OP_WATCH && flag) | |
371 | op->watch.flag = (u8) 1; | |
372 | } | |
373 | EXPORT_SYMBOL(osd_req_op_watch_init); | |
374 | ||
a8dd0a37 AE |
375 | static u64 osd_req_encode_op(struct ceph_osd_request *req, |
376 | struct ceph_osd_op *dst, | |
377 | struct ceph_osd_req_op *src) | |
378 | { | |
379 | u64 out_data_len = 0; | |
380 | struct ceph_pagelist *pagelist; | |
381 | ||
382 | if (WARN_ON(!osd_req_opcode_valid(src->op))) { | |
383 | pr_err("unrecognized osd opcode %d\n", src->op); | |
384 | ||
385 | return 0; | |
386 | } | |
387 | ||
388 | switch (src->op) { | |
389 | case CEPH_OSD_OP_STAT: | |
390 | break; | |
391 | case CEPH_OSD_OP_READ: | |
392 | case CEPH_OSD_OP_WRITE: | |
393 | if (src->op == CEPH_OSD_OP_WRITE) | |
394 | out_data_len = src->extent.length; | |
395 | dst->extent.offset = cpu_to_le64(src->extent.offset); | |
396 | dst->extent.length = cpu_to_le64(src->extent.length); | |
397 | dst->extent.truncate_size = | |
398 | cpu_to_le64(src->extent.truncate_size); | |
399 | dst->extent.truncate_seq = | |
400 | cpu_to_le32(src->extent.truncate_seq); | |
401 | break; | |
402 | case CEPH_OSD_OP_CALL: | |
403 | pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS); | |
404 | BUG_ON(!pagelist); | |
405 | ceph_pagelist_init(pagelist); | |
406 | ||
407 | dst->cls.class_len = src->cls.class_len; | |
408 | dst->cls.method_len = src->cls.method_len; | |
409 | dst->cls.indata_len = cpu_to_le32(src->cls.indata_len); | |
410 | ceph_pagelist_append(pagelist, src->cls.class_name, | |
411 | src->cls.class_len); | |
412 | ceph_pagelist_append(pagelist, src->cls.method_name, | |
413 | src->cls.method_len); | |
414 | ceph_pagelist_append(pagelist, src->cls.indata, | |
415 | src->cls.indata_len); | |
416 | ||
417 | req->r_data_out.type = CEPH_OSD_DATA_TYPE_PAGELIST; | |
418 | req->r_data_out.pagelist = pagelist; | |
419 | out_data_len = pagelist->length; | |
420 | break; | |
421 | case CEPH_OSD_OP_STARTSYNC: | |
422 | break; | |
423 | case CEPH_OSD_OP_NOTIFY_ACK: | |
424 | case CEPH_OSD_OP_WATCH: | |
425 | dst->watch.cookie = cpu_to_le64(src->watch.cookie); | |
426 | dst->watch.ver = cpu_to_le64(src->watch.ver); | |
427 | dst->watch.flag = src->watch.flag; | |
428 | break; | |
429 | default: | |
4c46459c | 430 | pr_err("unsupported osd opcode %s\n", |
8f63ca2d | 431 | ceph_osd_op_name(src->op)); |
4c46459c | 432 | WARN_ON(1); |
a8dd0a37 AE |
433 | |
434 | return 0; | |
68b4476b | 435 | } |
a8dd0a37 | 436 | dst->op = cpu_to_le16(src->op); |
68b4476b | 437 | dst->payload_len = cpu_to_le32(src->payload_len); |
175face2 AE |
438 | |
439 | return out_data_len; | |
68b4476b YS |
440 | } |
441 | ||
3499e8a5 YS |
442 | /* |
443 | * build new request AND message | |
444 | * | |
445 | */ | |
446 | void ceph_osdc_build_request(struct ceph_osd_request *req, | |
175face2 | 447 | u64 off, unsigned int num_ops, |
68b4476b | 448 | struct ceph_osd_req_op *src_ops, |
4d6b250b | 449 | struct ceph_snap_context *snapc, u64 snap_id, |
af77f26c | 450 | struct timespec *mtime) |
3499e8a5 YS |
451 | { |
452 | struct ceph_msg *msg = req->r_request; | |
68b4476b | 453 | struct ceph_osd_req_op *src_op; |
3499e8a5 | 454 | void *p; |
1b83bef2 | 455 | size_t msg_size; |
3499e8a5 | 456 | int flags = req->r_flags; |
f44246e3 | 457 | u64 data_len; |
68b4476b | 458 | int i; |
3499e8a5 | 459 | |
1b83bef2 SW |
460 | req->r_num_ops = num_ops; |
461 | req->r_snapid = snap_id; | |
f24e9980 SW |
462 | req->r_snapc = ceph_get_snap_context(snapc); |
463 | ||
1b83bef2 SW |
464 | /* encode request */ |
465 | msg->hdr.version = cpu_to_le16(4); | |
466 | ||
467 | p = msg->front.iov_base; | |
468 | ceph_encode_32(&p, 1); /* client_inc is always 1 */ | |
469 | req->r_request_osdmap_epoch = p; | |
470 | p += 4; | |
471 | req->r_request_flags = p; | |
472 | p += 4; | |
473 | if (req->r_flags & CEPH_OSD_FLAG_WRITE) | |
474 | ceph_encode_timespec(p, mtime); | |
475 | p += sizeof(struct ceph_timespec); | |
476 | req->r_request_reassert_version = p; | |
477 | p += sizeof(struct ceph_eversion); /* will get filled in */ | |
478 | ||
479 | /* oloc */ | |
480 | ceph_encode_8(&p, 4); | |
481 | ceph_encode_8(&p, 4); | |
482 | ceph_encode_32(&p, 8 + 4 + 4); | |
483 | req->r_request_pool = p; | |
484 | p += 8; | |
485 | ceph_encode_32(&p, -1); /* preferred */ | |
486 | ceph_encode_32(&p, 0); /* key len */ | |
487 | ||
488 | ceph_encode_8(&p, 1); | |
489 | req->r_request_pgid = p; | |
490 | p += 8 + 4; | |
491 | ceph_encode_32(&p, -1); /* preferred */ | |
492 | ||
493 | /* oid */ | |
494 | ceph_encode_32(&p, req->r_oid_len); | |
af77f26c | 495 | memcpy(p, req->r_oid, req->r_oid_len); |
1b83bef2 | 496 | dout("oid '%.*s' len %d\n", req->r_oid_len, req->r_oid, req->r_oid_len); |
af77f26c | 497 | p += req->r_oid_len; |
f24e9980 | 498 | |
175face2 | 499 | /* ops--can imply data */ |
1b83bef2 | 500 | ceph_encode_16(&p, num_ops); |
68b4476b | 501 | src_op = src_ops; |
1b83bef2 | 502 | req->r_request_ops = p; |
175face2 | 503 | data_len = 0; |
1b83bef2 | 504 | for (i = 0; i < num_ops; i++, src_op++) { |
175face2 | 505 | data_len += osd_req_encode_op(req, p, src_op); |
1b83bef2 SW |
506 | p += sizeof(struct ceph_osd_op); |
507 | } | |
68b4476b | 508 | |
1b83bef2 SW |
509 | /* snaps */ |
510 | ceph_encode_64(&p, req->r_snapid); | |
511 | ceph_encode_64(&p, req->r_snapc ? req->r_snapc->seq : 0); | |
512 | ceph_encode_32(&p, req->r_snapc ? req->r_snapc->num_snaps : 0); | |
513 | if (req->r_snapc) { | |
f24e9980 | 514 | for (i = 0; i < snapc->num_snaps; i++) { |
1b83bef2 | 515 | ceph_encode_64(&p, req->r_snapc->snaps[i]); |
f24e9980 SW |
516 | } |
517 | } | |
518 | ||
1b83bef2 SW |
519 | req->r_request_attempts = p; |
520 | p += 4; | |
521 | ||
175face2 | 522 | /* data */ |
0baa1bd9 AE |
523 | if (flags & CEPH_OSD_FLAG_WRITE) { |
524 | u16 data_off; | |
525 | ||
526 | /* | |
527 | * The header "data_off" is a hint to the receiver | |
528 | * allowing it to align received data into its | |
529 | * buffers such that there's no need to re-copy | |
530 | * it before writing it to disk (direct I/O). | |
531 | */ | |
532 | data_off = (u16) (off & 0xffff); | |
533 | req->r_request->hdr.data_off = cpu_to_le16(data_off); | |
534 | } | |
f44246e3 | 535 | req->r_request->hdr.data_len = cpu_to_le32(data_len); |
c5c6b19d | 536 | |
f24e9980 | 537 | BUG_ON(p > msg->front.iov_base + msg->front.iov_len); |
6f863e71 SW |
538 | msg_size = p - msg->front.iov_base; |
539 | msg->front.iov_len = msg_size; | |
540 | msg->hdr.front_len = cpu_to_le32(msg_size); | |
1b83bef2 SW |
541 | |
542 | dout("build_request msg_size was %d num_ops %d\n", (int)msg_size, | |
543 | num_ops); | |
3499e8a5 YS |
544 | return; |
545 | } | |
3d14c5d2 | 546 | EXPORT_SYMBOL(ceph_osdc_build_request); |
3499e8a5 YS |
547 | |
548 | /* | |
549 | * build new request AND message, calculate layout, and adjust file | |
550 | * extent as needed. | |
551 | * | |
552 | * if the file was recently truncated, we include information about its | |
553 | * old and new size so that the object can be updated appropriately. (we | |
554 | * avoid synchronously deleting truncated objects because it's slow.) | |
555 | * | |
556 | * if @do_sync, include a 'startsync' command so that the osd will flush | |
557 | * data quickly. | |
558 | */ | |
559 | struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc, | |
560 | struct ceph_file_layout *layout, | |
561 | struct ceph_vino vino, | |
562 | u64 off, u64 *plen, | |
563 | int opcode, int flags, | |
564 | struct ceph_snap_context *snapc, | |
565 | int do_sync, | |
566 | u32 truncate_seq, | |
567 | u64 truncate_size, | |
568 | struct timespec *mtime, | |
153e5167 | 569 | bool use_mempool) |
3499e8a5 | 570 | { |
ae7ca4a3 | 571 | struct ceph_osd_req_op ops[2]; |
68b4476b | 572 | struct ceph_osd_request *req; |
ae7ca4a3 | 573 | unsigned int num_op = 1; |
75d1c941 AE |
574 | u64 objnum = 0; |
575 | u64 objoff = 0; | |
576 | u64 objlen = 0; | |
6816282d | 577 | int r; |
68b4476b | 578 | |
ae7ca4a3 AE |
579 | memset(&ops, 0, sizeof ops); |
580 | ||
68b4476b YS |
581 | ops[0].op = opcode; |
582 | ops[0].extent.truncate_seq = truncate_seq; | |
583 | ops[0].extent.truncate_size = truncate_size; | |
68b4476b YS |
584 | |
585 | if (do_sync) { | |
586 | ops[1].op = CEPH_OSD_OP_STARTSYNC; | |
ae7ca4a3 AE |
587 | num_op++; |
588 | } | |
68b4476b | 589 | |
ae7ca4a3 AE |
590 | req = ceph_osdc_alloc_request(osdc, snapc, num_op, use_mempool, |
591 | GFP_NOFS); | |
4ad12621 | 592 | if (!req) |
6816282d | 593 | return ERR_PTR(-ENOMEM); |
d178a9e7 | 594 | req->r_flags = flags; |
3499e8a5 YS |
595 | |
596 | /* calculate max write size */ | |
75d1c941 | 597 | r = calc_layout(layout, off, plen, ops, &objnum, &objoff, &objlen); |
3ff5f385 AE |
598 | if (r < 0) { |
599 | ceph_osdc_put_request(req); | |
6816282d | 600 | return ERR_PTR(r); |
3ff5f385 | 601 | } |
3499e8a5 YS |
602 | req->r_file_layout = *layout; /* keep a copy */ |
603 | ||
75d1c941 AE |
604 | snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", |
605 | vino.ino, objnum); | |
dbe0fc41 AE |
606 | req->r_oid_len = strlen(req->r_oid); |
607 | ||
175face2 | 608 | ceph_osdc_build_request(req, off, num_op, ops, |
ae7ca4a3 | 609 | snapc, vino.snap, mtime); |
3499e8a5 | 610 | |
f24e9980 SW |
611 | return req; |
612 | } | |
3d14c5d2 | 613 | EXPORT_SYMBOL(ceph_osdc_new_request); |
f24e9980 SW |
614 | |
615 | /* | |
616 | * We keep osd requests in an rbtree, sorted by ->r_tid. | |
617 | */ | |
618 | static void __insert_request(struct ceph_osd_client *osdc, | |
619 | struct ceph_osd_request *new) | |
620 | { | |
621 | struct rb_node **p = &osdc->requests.rb_node; | |
622 | struct rb_node *parent = NULL; | |
623 | struct ceph_osd_request *req = NULL; | |
624 | ||
625 | while (*p) { | |
626 | parent = *p; | |
627 | req = rb_entry(parent, struct ceph_osd_request, r_node); | |
628 | if (new->r_tid < req->r_tid) | |
629 | p = &(*p)->rb_left; | |
630 | else if (new->r_tid > req->r_tid) | |
631 | p = &(*p)->rb_right; | |
632 | else | |
633 | BUG(); | |
634 | } | |
635 | ||
636 | rb_link_node(&new->r_node, parent, p); | |
637 | rb_insert_color(&new->r_node, &osdc->requests); | |
638 | } | |
639 | ||
640 | static struct ceph_osd_request *__lookup_request(struct ceph_osd_client *osdc, | |
641 | u64 tid) | |
642 | { | |
643 | struct ceph_osd_request *req; | |
644 | struct rb_node *n = osdc->requests.rb_node; | |
645 | ||
646 | while (n) { | |
647 | req = rb_entry(n, struct ceph_osd_request, r_node); | |
648 | if (tid < req->r_tid) | |
649 | n = n->rb_left; | |
650 | else if (tid > req->r_tid) | |
651 | n = n->rb_right; | |
652 | else | |
653 | return req; | |
654 | } | |
655 | return NULL; | |
656 | } | |
657 | ||
658 | static struct ceph_osd_request * | |
659 | __lookup_request_ge(struct ceph_osd_client *osdc, | |
660 | u64 tid) | |
661 | { | |
662 | struct ceph_osd_request *req; | |
663 | struct rb_node *n = osdc->requests.rb_node; | |
664 | ||
665 | while (n) { | |
666 | req = rb_entry(n, struct ceph_osd_request, r_node); | |
667 | if (tid < req->r_tid) { | |
668 | if (!n->rb_left) | |
669 | return req; | |
670 | n = n->rb_left; | |
671 | } else if (tid > req->r_tid) { | |
672 | n = n->rb_right; | |
673 | } else { | |
674 | return req; | |
675 | } | |
676 | } | |
677 | return NULL; | |
678 | } | |
679 | ||
6f6c7006 SW |
680 | /* |
681 | * Resubmit requests pending on the given osd. | |
682 | */ | |
683 | static void __kick_osd_requests(struct ceph_osd_client *osdc, | |
684 | struct ceph_osd *osd) | |
685 | { | |
a40c4f10 | 686 | struct ceph_osd_request *req, *nreq; |
e02493c0 | 687 | LIST_HEAD(resend); |
6f6c7006 SW |
688 | int err; |
689 | ||
690 | dout("__kick_osd_requests osd%d\n", osd->o_osd); | |
691 | err = __reset_osd(osdc, osd); | |
685a7555 | 692 | if (err) |
6f6c7006 | 693 | return; |
e02493c0 AE |
694 | /* |
695 | * Build up a list of requests to resend by traversing the | |
696 | * osd's list of requests. Requests for a given object are | |
697 | * sent in tid order, and that is also the order they're | |
698 | * kept on this list. Therefore all requests that are in | |
699 | * flight will be found first, followed by all requests that | |
700 | * have not yet been sent. And to resend requests while | |
701 | * preserving this order we will want to put any sent | |
702 | * requests back on the front of the osd client's unsent | |
703 | * list. | |
704 | * | |
705 | * So we build a separate ordered list of already-sent | |
706 | * requests for the affected osd and splice it onto the | |
707 | * front of the osd client's unsent list. Once we've seen a | |
708 | * request that has not yet been sent we're done. Those | |
709 | * requests are already sitting right where they belong. | |
710 | */ | |
6f6c7006 | 711 | list_for_each_entry(req, &osd->o_requests, r_osd_item) { |
e02493c0 AE |
712 | if (!req->r_sent) |
713 | break; | |
714 | list_move_tail(&req->r_req_lru_item, &resend); | |
715 | dout("requeueing %p tid %llu osd%d\n", req, req->r_tid, | |
6f6c7006 | 716 | osd->o_osd); |
a40c4f10 YS |
717 | if (!req->r_linger) |
718 | req->r_flags |= CEPH_OSD_FLAG_RETRY; | |
719 | } | |
e02493c0 | 720 | list_splice(&resend, &osdc->req_unsent); |
a40c4f10 | 721 | |
e02493c0 AE |
722 | /* |
723 | * Linger requests are re-registered before sending, which | |
724 | * sets up a new tid for each. We add them to the unsent | |
725 | * list at the end to keep things in tid order. | |
726 | */ | |
a40c4f10 YS |
727 | list_for_each_entry_safe(req, nreq, &osd->o_linger_requests, |
728 | r_linger_osd) { | |
77f38e0e SW |
729 | /* |
730 | * reregister request prior to unregistering linger so | |
731 | * that r_osd is preserved. | |
732 | */ | |
733 | BUG_ON(!list_empty(&req->r_req_lru_item)); | |
a40c4f10 | 734 | __register_request(osdc, req); |
e02493c0 | 735 | list_add_tail(&req->r_req_lru_item, &osdc->req_unsent); |
ad885927 | 736 | list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); |
77f38e0e | 737 | __unregister_linger_request(osdc, req); |
a40c4f10 YS |
738 | dout("requeued lingering %p tid %llu osd%d\n", req, req->r_tid, |
739 | osd->o_osd); | |
6f6c7006 SW |
740 | } |
741 | } | |
742 | ||
f24e9980 | 743 | /* |
81b024e7 | 744 | * If the osd connection drops, we need to resubmit all requests. |
f24e9980 SW |
745 | */ |
746 | static void osd_reset(struct ceph_connection *con) | |
747 | { | |
748 | struct ceph_osd *osd = con->private; | |
749 | struct ceph_osd_client *osdc; | |
750 | ||
751 | if (!osd) | |
752 | return; | |
753 | dout("osd_reset osd%d\n", osd->o_osd); | |
754 | osdc = osd->o_osdc; | |
f24e9980 | 755 | down_read(&osdc->map_sem); |
83aff95e SW |
756 | mutex_lock(&osdc->request_mutex); |
757 | __kick_osd_requests(osdc, osd); | |
f9d25199 | 758 | __send_queued(osdc); |
83aff95e | 759 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
760 | up_read(&osdc->map_sem); |
761 | } | |
762 | ||
763 | /* | |
764 | * Track open sessions with osds. | |
765 | */ | |
e10006f8 | 766 | static struct ceph_osd *create_osd(struct ceph_osd_client *osdc, int onum) |
f24e9980 SW |
767 | { |
768 | struct ceph_osd *osd; | |
769 | ||
770 | osd = kzalloc(sizeof(*osd), GFP_NOFS); | |
771 | if (!osd) | |
772 | return NULL; | |
773 | ||
774 | atomic_set(&osd->o_ref, 1); | |
775 | osd->o_osdc = osdc; | |
e10006f8 | 776 | osd->o_osd = onum; |
f407731d | 777 | RB_CLEAR_NODE(&osd->o_node); |
f24e9980 | 778 | INIT_LIST_HEAD(&osd->o_requests); |
a40c4f10 | 779 | INIT_LIST_HEAD(&osd->o_linger_requests); |
f5a2041b | 780 | INIT_LIST_HEAD(&osd->o_osd_lru); |
f24e9980 SW |
781 | osd->o_incarnation = 1; |
782 | ||
b7a9e5dd | 783 | ceph_con_init(&osd->o_con, osd, &osd_con_ops, &osdc->client->msgr); |
4e7a5dcd | 784 | |
422d2cb8 | 785 | INIT_LIST_HEAD(&osd->o_keepalive_item); |
f24e9980 SW |
786 | return osd; |
787 | } | |
788 | ||
789 | static struct ceph_osd *get_osd(struct ceph_osd *osd) | |
790 | { | |
791 | if (atomic_inc_not_zero(&osd->o_ref)) { | |
792 | dout("get_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref)-1, | |
793 | atomic_read(&osd->o_ref)); | |
794 | return osd; | |
795 | } else { | |
796 | dout("get_osd %p FAIL\n", osd); | |
797 | return NULL; | |
798 | } | |
799 | } | |
800 | ||
801 | static void put_osd(struct ceph_osd *osd) | |
802 | { | |
803 | dout("put_osd %p %d -> %d\n", osd, atomic_read(&osd->o_ref), | |
804 | atomic_read(&osd->o_ref) - 1); | |
a255651d | 805 | if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) { |
79494d1b SW |
806 | struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth; |
807 | ||
27859f97 | 808 | ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer); |
f24e9980 | 809 | kfree(osd); |
79494d1b | 810 | } |
f24e9980 SW |
811 | } |
812 | ||
813 | /* | |
814 | * remove an osd from our map | |
815 | */ | |
f5a2041b | 816 | static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) |
f24e9980 | 817 | { |
f5a2041b | 818 | dout("__remove_osd %p\n", osd); |
f24e9980 SW |
819 | BUG_ON(!list_empty(&osd->o_requests)); |
820 | rb_erase(&osd->o_node, &osdc->osds); | |
f5a2041b | 821 | list_del_init(&osd->o_osd_lru); |
f24e9980 SW |
822 | ceph_con_close(&osd->o_con); |
823 | put_osd(osd); | |
824 | } | |
825 | ||
aca420bc SW |
826 | static void remove_all_osds(struct ceph_osd_client *osdc) |
827 | { | |
048a9d2d | 828 | dout("%s %p\n", __func__, osdc); |
aca420bc SW |
829 | mutex_lock(&osdc->request_mutex); |
830 | while (!RB_EMPTY_ROOT(&osdc->osds)) { | |
831 | struct ceph_osd *osd = rb_entry(rb_first(&osdc->osds), | |
832 | struct ceph_osd, o_node); | |
833 | __remove_osd(osdc, osd); | |
834 | } | |
835 | mutex_unlock(&osdc->request_mutex); | |
836 | } | |
837 | ||
f5a2041b YS |
838 | static void __move_osd_to_lru(struct ceph_osd_client *osdc, |
839 | struct ceph_osd *osd) | |
840 | { | |
841 | dout("__move_osd_to_lru %p\n", osd); | |
842 | BUG_ON(!list_empty(&osd->o_osd_lru)); | |
843 | list_add_tail(&osd->o_osd_lru, &osdc->osd_lru); | |
3d14c5d2 | 844 | osd->lru_ttl = jiffies + osdc->client->options->osd_idle_ttl * HZ; |
f5a2041b YS |
845 | } |
846 | ||
847 | static void __remove_osd_from_lru(struct ceph_osd *osd) | |
848 | { | |
849 | dout("__remove_osd_from_lru %p\n", osd); | |
850 | if (!list_empty(&osd->o_osd_lru)) | |
851 | list_del_init(&osd->o_osd_lru); | |
852 | } | |
853 | ||
aca420bc | 854 | static void remove_old_osds(struct ceph_osd_client *osdc) |
f5a2041b YS |
855 | { |
856 | struct ceph_osd *osd, *nosd; | |
857 | ||
858 | dout("__remove_old_osds %p\n", osdc); | |
859 | mutex_lock(&osdc->request_mutex); | |
860 | list_for_each_entry_safe(osd, nosd, &osdc->osd_lru, o_osd_lru) { | |
aca420bc | 861 | if (time_before(jiffies, osd->lru_ttl)) |
f5a2041b YS |
862 | break; |
863 | __remove_osd(osdc, osd); | |
864 | } | |
865 | mutex_unlock(&osdc->request_mutex); | |
866 | } | |
867 | ||
f24e9980 SW |
868 | /* |
869 | * reset osd connect | |
870 | */ | |
f5a2041b | 871 | static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd) |
f24e9980 | 872 | { |
c3acb181 | 873 | struct ceph_entity_addr *peer_addr; |
f24e9980 | 874 | |
f5a2041b | 875 | dout("__reset_osd %p osd%d\n", osd, osd->o_osd); |
a40c4f10 YS |
876 | if (list_empty(&osd->o_requests) && |
877 | list_empty(&osd->o_linger_requests)) { | |
f5a2041b | 878 | __remove_osd(osdc, osd); |
c3acb181 AE |
879 | |
880 | return -ENODEV; | |
881 | } | |
882 | ||
883 | peer_addr = &osdc->osdmap->osd_addr[osd->o_osd]; | |
884 | if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) && | |
885 | !ceph_con_opened(&osd->o_con)) { | |
886 | struct ceph_osd_request *req; | |
887 | ||
87b315a5 SW |
888 | dout(" osd addr hasn't changed and connection never opened," |
889 | " letting msgr retry"); | |
890 | /* touch each r_stamp for handle_timeout()'s benfit */ | |
891 | list_for_each_entry(req, &osd->o_requests, r_osd_item) | |
892 | req->r_stamp = jiffies; | |
c3acb181 AE |
893 | |
894 | return -EAGAIN; | |
f24e9980 | 895 | } |
c3acb181 AE |
896 | |
897 | ceph_con_close(&osd->o_con); | |
898 | ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr); | |
899 | osd->o_incarnation++; | |
900 | ||
901 | return 0; | |
f24e9980 SW |
902 | } |
903 | ||
904 | static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new) | |
905 | { | |
906 | struct rb_node **p = &osdc->osds.rb_node; | |
907 | struct rb_node *parent = NULL; | |
908 | struct ceph_osd *osd = NULL; | |
909 | ||
aca420bc | 910 | dout("__insert_osd %p osd%d\n", new, new->o_osd); |
f24e9980 SW |
911 | while (*p) { |
912 | parent = *p; | |
913 | osd = rb_entry(parent, struct ceph_osd, o_node); | |
914 | if (new->o_osd < osd->o_osd) | |
915 | p = &(*p)->rb_left; | |
916 | else if (new->o_osd > osd->o_osd) | |
917 | p = &(*p)->rb_right; | |
918 | else | |
919 | BUG(); | |
920 | } | |
921 | ||
922 | rb_link_node(&new->o_node, parent, p); | |
923 | rb_insert_color(&new->o_node, &osdc->osds); | |
924 | } | |
925 | ||
926 | static struct ceph_osd *__lookup_osd(struct ceph_osd_client *osdc, int o) | |
927 | { | |
928 | struct ceph_osd *osd; | |
929 | struct rb_node *n = osdc->osds.rb_node; | |
930 | ||
931 | while (n) { | |
932 | osd = rb_entry(n, struct ceph_osd, o_node); | |
933 | if (o < osd->o_osd) | |
934 | n = n->rb_left; | |
935 | else if (o > osd->o_osd) | |
936 | n = n->rb_right; | |
937 | else | |
938 | return osd; | |
939 | } | |
940 | return NULL; | |
941 | } | |
942 | ||
422d2cb8 YS |
943 | static void __schedule_osd_timeout(struct ceph_osd_client *osdc) |
944 | { | |
945 | schedule_delayed_work(&osdc->timeout_work, | |
3d14c5d2 | 946 | osdc->client->options->osd_keepalive_timeout * HZ); |
422d2cb8 YS |
947 | } |
948 | ||
949 | static void __cancel_osd_timeout(struct ceph_osd_client *osdc) | |
950 | { | |
951 | cancel_delayed_work(&osdc->timeout_work); | |
952 | } | |
f24e9980 SW |
953 | |
954 | /* | |
955 | * Register request, assign tid. If this is the first request, set up | |
956 | * the timeout event. | |
957 | */ | |
a40c4f10 YS |
958 | static void __register_request(struct ceph_osd_client *osdc, |
959 | struct ceph_osd_request *req) | |
f24e9980 | 960 | { |
f24e9980 | 961 | req->r_tid = ++osdc->last_tid; |
6df058c0 | 962 | req->r_request->hdr.tid = cpu_to_le64(req->r_tid); |
77f38e0e | 963 | dout("__register_request %p tid %lld\n", req, req->r_tid); |
f24e9980 SW |
964 | __insert_request(osdc, req); |
965 | ceph_osdc_get_request(req); | |
966 | osdc->num_requests++; | |
f24e9980 | 967 | if (osdc->num_requests == 1) { |
422d2cb8 YS |
968 | dout(" first request, scheduling timeout\n"); |
969 | __schedule_osd_timeout(osdc); | |
f24e9980 | 970 | } |
a40c4f10 YS |
971 | } |
972 | ||
f24e9980 SW |
973 | /* |
974 | * called under osdc->request_mutex | |
975 | */ | |
976 | static void __unregister_request(struct ceph_osd_client *osdc, | |
977 | struct ceph_osd_request *req) | |
978 | { | |
35f9f8a0 SW |
979 | if (RB_EMPTY_NODE(&req->r_node)) { |
980 | dout("__unregister_request %p tid %lld not registered\n", | |
981 | req, req->r_tid); | |
982 | return; | |
983 | } | |
984 | ||
f24e9980 SW |
985 | dout("__unregister_request %p tid %lld\n", req, req->r_tid); |
986 | rb_erase(&req->r_node, &osdc->requests); | |
987 | osdc->num_requests--; | |
988 | ||
0ba6478d SW |
989 | if (req->r_osd) { |
990 | /* make sure the original request isn't in flight. */ | |
6740a845 | 991 | ceph_msg_revoke(req->r_request); |
0ba6478d SW |
992 | |
993 | list_del_init(&req->r_osd_item); | |
a40c4f10 YS |
994 | if (list_empty(&req->r_osd->o_requests) && |
995 | list_empty(&req->r_osd->o_linger_requests)) { | |
996 | dout("moving osd to %p lru\n", req->r_osd); | |
f5a2041b | 997 | __move_osd_to_lru(osdc, req->r_osd); |
a40c4f10 | 998 | } |
fbdb9190 | 999 | if (list_empty(&req->r_linger_item)) |
a40c4f10 | 1000 | req->r_osd = NULL; |
0ba6478d | 1001 | } |
f24e9980 | 1002 | |
7d5f2481 | 1003 | list_del_init(&req->r_req_lru_item); |
f24e9980 SW |
1004 | ceph_osdc_put_request(req); |
1005 | ||
422d2cb8 YS |
1006 | if (osdc->num_requests == 0) { |
1007 | dout(" no requests, canceling timeout\n"); | |
1008 | __cancel_osd_timeout(osdc); | |
f24e9980 SW |
1009 | } |
1010 | } | |
1011 | ||
1012 | /* | |
1013 | * Cancel a previously queued request message | |
1014 | */ | |
1015 | static void __cancel_request(struct ceph_osd_request *req) | |
1016 | { | |
6bc18876 | 1017 | if (req->r_sent && req->r_osd) { |
6740a845 | 1018 | ceph_msg_revoke(req->r_request); |
f24e9980 SW |
1019 | req->r_sent = 0; |
1020 | } | |
1021 | } | |
1022 | ||
a40c4f10 YS |
1023 | static void __register_linger_request(struct ceph_osd_client *osdc, |
1024 | struct ceph_osd_request *req) | |
1025 | { | |
1026 | dout("__register_linger_request %p\n", req); | |
1027 | list_add_tail(&req->r_linger_item, &osdc->req_linger); | |
6194ea89 SW |
1028 | if (req->r_osd) |
1029 | list_add_tail(&req->r_linger_osd, | |
1030 | &req->r_osd->o_linger_requests); | |
a40c4f10 YS |
1031 | } |
1032 | ||
1033 | static void __unregister_linger_request(struct ceph_osd_client *osdc, | |
1034 | struct ceph_osd_request *req) | |
1035 | { | |
1036 | dout("__unregister_linger_request %p\n", req); | |
61c74035 | 1037 | list_del_init(&req->r_linger_item); |
a40c4f10 | 1038 | if (req->r_osd) { |
a40c4f10 YS |
1039 | list_del_init(&req->r_linger_osd); |
1040 | ||
1041 | if (list_empty(&req->r_osd->o_requests) && | |
1042 | list_empty(&req->r_osd->o_linger_requests)) { | |
1043 | dout("moving osd to %p lru\n", req->r_osd); | |
1044 | __move_osd_to_lru(osdc, req->r_osd); | |
1045 | } | |
fbdb9190 SW |
1046 | if (list_empty(&req->r_osd_item)) |
1047 | req->r_osd = NULL; | |
a40c4f10 YS |
1048 | } |
1049 | } | |
1050 | ||
1051 | void ceph_osdc_unregister_linger_request(struct ceph_osd_client *osdc, | |
1052 | struct ceph_osd_request *req) | |
1053 | { | |
1054 | mutex_lock(&osdc->request_mutex); | |
1055 | if (req->r_linger) { | |
1056 | __unregister_linger_request(osdc, req); | |
1057 | ceph_osdc_put_request(req); | |
1058 | } | |
1059 | mutex_unlock(&osdc->request_mutex); | |
1060 | } | |
1061 | EXPORT_SYMBOL(ceph_osdc_unregister_linger_request); | |
1062 | ||
1063 | void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc, | |
1064 | struct ceph_osd_request *req) | |
1065 | { | |
1066 | if (!req->r_linger) { | |
1067 | dout("set_request_linger %p\n", req); | |
1068 | req->r_linger = 1; | |
1069 | /* | |
1070 | * caller is now responsible for calling | |
1071 | * unregister_linger_request | |
1072 | */ | |
1073 | ceph_osdc_get_request(req); | |
1074 | } | |
1075 | } | |
1076 | EXPORT_SYMBOL(ceph_osdc_set_request_linger); | |
1077 | ||
f24e9980 SW |
1078 | /* |
1079 | * Pick an osd (the first 'up' osd in the pg), allocate the osd struct | |
1080 | * (as needed), and set the request r_osd appropriately. If there is | |
25985edc | 1081 | * no up osd, set r_osd to NULL. Move the request to the appropriate list |
6f6c7006 | 1082 | * (unsent, homeless) or leave on in-flight lru. |
f24e9980 SW |
1083 | * |
1084 | * Return 0 if unchanged, 1 if changed, or negative on error. | |
1085 | * | |
1086 | * Caller should hold map_sem for read and request_mutex. | |
1087 | */ | |
6f6c7006 | 1088 | static int __map_request(struct ceph_osd_client *osdc, |
38d6453c | 1089 | struct ceph_osd_request *req, int force_resend) |
f24e9980 | 1090 | { |
5b191d99 | 1091 | struct ceph_pg pgid; |
d85b7056 SW |
1092 | int acting[CEPH_PG_MAX_SIZE]; |
1093 | int o = -1, num = 0; | |
f24e9980 | 1094 | int err; |
f24e9980 | 1095 | |
6f6c7006 | 1096 | dout("map_request %p tid %lld\n", req, req->r_tid); |
41766f87 AE |
1097 | err = ceph_calc_ceph_pg(&pgid, req->r_oid, osdc->osdmap, |
1098 | ceph_file_layout_pg_pool(req->r_file_layout)); | |
6f6c7006 SW |
1099 | if (err) { |
1100 | list_move(&req->r_req_lru_item, &osdc->req_notarget); | |
f24e9980 | 1101 | return err; |
6f6c7006 | 1102 | } |
7740a42f SW |
1103 | req->r_pgid = pgid; |
1104 | ||
d85b7056 SW |
1105 | err = ceph_calc_pg_acting(osdc->osdmap, pgid, acting); |
1106 | if (err > 0) { | |
1107 | o = acting[0]; | |
1108 | num = err; | |
1109 | } | |
f24e9980 | 1110 | |
38d6453c SW |
1111 | if ((!force_resend && |
1112 | req->r_osd && req->r_osd->o_osd == o && | |
d85b7056 SW |
1113 | req->r_sent >= req->r_osd->o_incarnation && |
1114 | req->r_num_pg_osds == num && | |
1115 | memcmp(req->r_pg_osds, acting, sizeof(acting[0])*num) == 0) || | |
f24e9980 SW |
1116 | (req->r_osd == NULL && o == -1)) |
1117 | return 0; /* no change */ | |
1118 | ||
5b191d99 SW |
1119 | dout("map_request tid %llu pgid %lld.%x osd%d (was osd%d)\n", |
1120 | req->r_tid, pgid.pool, pgid.seed, o, | |
f24e9980 SW |
1121 | req->r_osd ? req->r_osd->o_osd : -1); |
1122 | ||
d85b7056 SW |
1123 | /* record full pg acting set */ |
1124 | memcpy(req->r_pg_osds, acting, sizeof(acting[0]) * num); | |
1125 | req->r_num_pg_osds = num; | |
1126 | ||
f24e9980 SW |
1127 | if (req->r_osd) { |
1128 | __cancel_request(req); | |
1129 | list_del_init(&req->r_osd_item); | |
f24e9980 SW |
1130 | req->r_osd = NULL; |
1131 | } | |
1132 | ||
1133 | req->r_osd = __lookup_osd(osdc, o); | |
1134 | if (!req->r_osd && o >= 0) { | |
c99eb1c7 | 1135 | err = -ENOMEM; |
e10006f8 | 1136 | req->r_osd = create_osd(osdc, o); |
6f6c7006 SW |
1137 | if (!req->r_osd) { |
1138 | list_move(&req->r_req_lru_item, &osdc->req_notarget); | |
c99eb1c7 | 1139 | goto out; |
6f6c7006 | 1140 | } |
f24e9980 | 1141 | |
6f6c7006 | 1142 | dout("map_request osd %p is osd%d\n", req->r_osd, o); |
f24e9980 SW |
1143 | __insert_osd(osdc, req->r_osd); |
1144 | ||
b7a9e5dd SW |
1145 | ceph_con_open(&req->r_osd->o_con, |
1146 | CEPH_ENTITY_TYPE_OSD, o, | |
1147 | &osdc->osdmap->osd_addr[o]); | |
f24e9980 SW |
1148 | } |
1149 | ||
f5a2041b YS |
1150 | if (req->r_osd) { |
1151 | __remove_osd_from_lru(req->r_osd); | |
ad885927 AE |
1152 | list_add_tail(&req->r_osd_item, &req->r_osd->o_requests); |
1153 | list_move_tail(&req->r_req_lru_item, &osdc->req_unsent); | |
6f6c7006 | 1154 | } else { |
ad885927 | 1155 | list_move_tail(&req->r_req_lru_item, &osdc->req_notarget); |
f5a2041b | 1156 | } |
d85b7056 | 1157 | err = 1; /* osd or pg changed */ |
f24e9980 SW |
1158 | |
1159 | out: | |
f24e9980 SW |
1160 | return err; |
1161 | } | |
1162 | ||
1163 | /* | |
1164 | * caller should hold map_sem (for read) and request_mutex | |
1165 | */ | |
56e925b6 SW |
1166 | static void __send_request(struct ceph_osd_client *osdc, |
1167 | struct ceph_osd_request *req) | |
f24e9980 | 1168 | { |
1b83bef2 | 1169 | void *p; |
f24e9980 | 1170 | |
1b83bef2 SW |
1171 | dout("send_request %p tid %llu to osd%d flags %d pg %lld.%x\n", |
1172 | req, req->r_tid, req->r_osd->o_osd, req->r_flags, | |
1173 | (unsigned long long)req->r_pgid.pool, req->r_pgid.seed); | |
1174 | ||
1175 | /* fill in message content that changes each time we send it */ | |
1176 | put_unaligned_le32(osdc->osdmap->epoch, req->r_request_osdmap_epoch); | |
1177 | put_unaligned_le32(req->r_flags, req->r_request_flags); | |
1178 | put_unaligned_le64(req->r_pgid.pool, req->r_request_pool); | |
1179 | p = req->r_request_pgid; | |
1180 | ceph_encode_64(&p, req->r_pgid.pool); | |
1181 | ceph_encode_32(&p, req->r_pgid.seed); | |
1182 | put_unaligned_le64(1, req->r_request_attempts); /* FIXME */ | |
1183 | memcpy(req->r_request_reassert_version, &req->r_reassert_version, | |
1184 | sizeof(req->r_reassert_version)); | |
2169aea6 | 1185 | |
3dd72fc0 | 1186 | req->r_stamp = jiffies; |
07a27e22 | 1187 | list_move_tail(&req->r_req_lru_item, &osdc->req_lru); |
f24e9980 SW |
1188 | |
1189 | ceph_msg_get(req->r_request); /* send consumes a ref */ | |
1190 | ceph_con_send(&req->r_osd->o_con, req->r_request); | |
1191 | req->r_sent = req->r_osd->o_incarnation; | |
f24e9980 SW |
1192 | } |
1193 | ||
6f6c7006 SW |
1194 | /* |
1195 | * Send any requests in the queue (req_unsent). | |
1196 | */ | |
f9d25199 | 1197 | static void __send_queued(struct ceph_osd_client *osdc) |
6f6c7006 SW |
1198 | { |
1199 | struct ceph_osd_request *req, *tmp; | |
1200 | ||
f9d25199 AE |
1201 | dout("__send_queued\n"); |
1202 | list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) | |
6f6c7006 | 1203 | __send_request(osdc, req); |
6f6c7006 SW |
1204 | } |
1205 | ||
f24e9980 SW |
1206 | /* |
1207 | * Timeout callback, called every N seconds when 1 or more osd | |
1208 | * requests has been active for more than N seconds. When this | |
1209 | * happens, we ping all OSDs with requests who have timed out to | |
1210 | * ensure any communications channel reset is detected. Reset the | |
1211 | * request timeouts another N seconds in the future as we go. | |
1212 | * Reschedule the timeout event another N seconds in future (unless | |
1213 | * there are no open requests). | |
1214 | */ | |
1215 | static void handle_timeout(struct work_struct *work) | |
1216 | { | |
1217 | struct ceph_osd_client *osdc = | |
1218 | container_of(work, struct ceph_osd_client, timeout_work.work); | |
83aff95e | 1219 | struct ceph_osd_request *req; |
f24e9980 | 1220 | struct ceph_osd *osd; |
422d2cb8 | 1221 | unsigned long keepalive = |
3d14c5d2 | 1222 | osdc->client->options->osd_keepalive_timeout * HZ; |
422d2cb8 | 1223 | struct list_head slow_osds; |
f24e9980 SW |
1224 | dout("timeout\n"); |
1225 | down_read(&osdc->map_sem); | |
1226 | ||
1227 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1228 | ||
1229 | mutex_lock(&osdc->request_mutex); | |
f24e9980 | 1230 | |
422d2cb8 YS |
1231 | /* |
1232 | * ping osds that are a bit slow. this ensures that if there | |
1233 | * is a break in the TCP connection we will notice, and reopen | |
1234 | * a connection with that osd (from the fault callback). | |
1235 | */ | |
1236 | INIT_LIST_HEAD(&slow_osds); | |
1237 | list_for_each_entry(req, &osdc->req_lru, r_req_lru_item) { | |
3dd72fc0 | 1238 | if (time_before(jiffies, req->r_stamp + keepalive)) |
422d2cb8 YS |
1239 | break; |
1240 | ||
1241 | osd = req->r_osd; | |
1242 | BUG_ON(!osd); | |
1243 | dout(" tid %llu is slow, will send keepalive on osd%d\n", | |
f24e9980 | 1244 | req->r_tid, osd->o_osd); |
422d2cb8 YS |
1245 | list_move_tail(&osd->o_keepalive_item, &slow_osds); |
1246 | } | |
1247 | while (!list_empty(&slow_osds)) { | |
1248 | osd = list_entry(slow_osds.next, struct ceph_osd, | |
1249 | o_keepalive_item); | |
1250 | list_del_init(&osd->o_keepalive_item); | |
f24e9980 SW |
1251 | ceph_con_keepalive(&osd->o_con); |
1252 | } | |
1253 | ||
422d2cb8 | 1254 | __schedule_osd_timeout(osdc); |
f9d25199 | 1255 | __send_queued(osdc); |
f24e9980 | 1256 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
1257 | up_read(&osdc->map_sem); |
1258 | } | |
1259 | ||
f5a2041b YS |
1260 | static void handle_osds_timeout(struct work_struct *work) |
1261 | { | |
1262 | struct ceph_osd_client *osdc = | |
1263 | container_of(work, struct ceph_osd_client, | |
1264 | osds_timeout_work.work); | |
1265 | unsigned long delay = | |
3d14c5d2 | 1266 | osdc->client->options->osd_idle_ttl * HZ >> 2; |
f5a2041b YS |
1267 | |
1268 | dout("osds timeout\n"); | |
1269 | down_read(&osdc->map_sem); | |
aca420bc | 1270 | remove_old_osds(osdc); |
f5a2041b YS |
1271 | up_read(&osdc->map_sem); |
1272 | ||
1273 | schedule_delayed_work(&osdc->osds_timeout_work, | |
1274 | round_jiffies_relative(delay)); | |
1275 | } | |
1276 | ||
25845472 SW |
1277 | static void complete_request(struct ceph_osd_request *req) |
1278 | { | |
1279 | if (req->r_safe_callback) | |
1280 | req->r_safe_callback(req, NULL); | |
1281 | complete_all(&req->r_safe_completion); /* fsync waiter */ | |
1282 | } | |
1283 | ||
1b83bef2 SW |
1284 | static int __decode_pgid(void **p, void *end, struct ceph_pg *pgid) |
1285 | { | |
1286 | __u8 v; | |
1287 | ||
1288 | ceph_decode_need(p, end, 1 + 8 + 4 + 4, bad); | |
1289 | v = ceph_decode_8(p); | |
1290 | if (v > 1) { | |
1291 | pr_warning("do not understand pg encoding %d > 1", v); | |
1292 | return -EINVAL; | |
1293 | } | |
1294 | pgid->pool = ceph_decode_64(p); | |
1295 | pgid->seed = ceph_decode_32(p); | |
1296 | *p += 4; | |
1297 | return 0; | |
1298 | ||
1299 | bad: | |
1300 | pr_warning("incomplete pg encoding"); | |
1301 | return -EINVAL; | |
1302 | } | |
1303 | ||
f24e9980 SW |
1304 | /* |
1305 | * handle osd op reply. either call the callback if it is specified, | |
1306 | * or do the completion to wake up the waiting thread. | |
1307 | */ | |
350b1c32 SW |
1308 | static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, |
1309 | struct ceph_connection *con) | |
f24e9980 | 1310 | { |
1b83bef2 | 1311 | void *p, *end; |
f24e9980 SW |
1312 | struct ceph_osd_request *req; |
1313 | u64 tid; | |
1b83bef2 SW |
1314 | int object_len; |
1315 | int numops, payload_len, flags; | |
0ceed5db | 1316 | s32 result; |
1b83bef2 SW |
1317 | s32 retry_attempt; |
1318 | struct ceph_pg pg; | |
1319 | int err; | |
1320 | u32 reassert_epoch; | |
1321 | u64 reassert_version; | |
1322 | u32 osdmap_epoch; | |
0d5af164 | 1323 | int already_completed; |
1b83bef2 | 1324 | int i; |
f24e9980 | 1325 | |
6df058c0 | 1326 | tid = le64_to_cpu(msg->hdr.tid); |
1b83bef2 SW |
1327 | dout("handle_reply %p tid %llu\n", msg, tid); |
1328 | ||
1329 | p = msg->front.iov_base; | |
1330 | end = p + msg->front.iov_len; | |
1331 | ||
1332 | ceph_decode_need(&p, end, 4, bad); | |
1333 | object_len = ceph_decode_32(&p); | |
1334 | ceph_decode_need(&p, end, object_len, bad); | |
1335 | p += object_len; | |
1336 | ||
1337 | err = __decode_pgid(&p, end, &pg); | |
1338 | if (err) | |
f24e9980 | 1339 | goto bad; |
1b83bef2 SW |
1340 | |
1341 | ceph_decode_need(&p, end, 8 + 4 + 4 + 8 + 4, bad); | |
1342 | flags = ceph_decode_64(&p); | |
1343 | result = ceph_decode_32(&p); | |
1344 | reassert_epoch = ceph_decode_32(&p); | |
1345 | reassert_version = ceph_decode_64(&p); | |
1346 | osdmap_epoch = ceph_decode_32(&p); | |
1347 | ||
f24e9980 SW |
1348 | /* lookup */ |
1349 | mutex_lock(&osdc->request_mutex); | |
1350 | req = __lookup_request(osdc, tid); | |
1351 | if (req == NULL) { | |
1352 | dout("handle_reply tid %llu dne\n", tid); | |
1353 | mutex_unlock(&osdc->request_mutex); | |
1354 | return; | |
1355 | } | |
1356 | ceph_osdc_get_request(req); | |
1b83bef2 SW |
1357 | |
1358 | dout("handle_reply %p tid %llu req %p result %d\n", msg, tid, | |
1359 | req, result); | |
1360 | ||
1361 | ceph_decode_need(&p, end, 4, bad); | |
1362 | numops = ceph_decode_32(&p); | |
1363 | if (numops > CEPH_OSD_MAX_OP) | |
1364 | goto bad_put; | |
1365 | if (numops != req->r_num_ops) | |
1366 | goto bad_put; | |
1367 | payload_len = 0; | |
1368 | ceph_decode_need(&p, end, numops * sizeof(struct ceph_osd_op), bad); | |
1369 | for (i = 0; i < numops; i++) { | |
1370 | struct ceph_osd_op *op = p; | |
1371 | int len; | |
1372 | ||
1373 | len = le32_to_cpu(op->payload_len); | |
1374 | req->r_reply_op_len[i] = len; | |
1375 | dout(" op %d has %d bytes\n", i, len); | |
1376 | payload_len += len; | |
1377 | p += sizeof(*op); | |
1378 | } | |
1379 | if (payload_len != le32_to_cpu(msg->hdr.data_len)) { | |
1380 | pr_warning("sum of op payload lens %d != data_len %d", | |
1381 | payload_len, le32_to_cpu(msg->hdr.data_len)); | |
1382 | goto bad_put; | |
1383 | } | |
1384 | ||
1385 | ceph_decode_need(&p, end, 4 + numops * 4, bad); | |
1386 | retry_attempt = ceph_decode_32(&p); | |
1387 | for (i = 0; i < numops; i++) | |
1388 | req->r_reply_op_result[i] = ceph_decode_32(&p); | |
f24e9980 | 1389 | |
350b1c32 | 1390 | /* |
0d59ab81 | 1391 | * if this connection filled our message, drop our reference now, to |
350b1c32 SW |
1392 | * avoid a (safe but slower) revoke later. |
1393 | */ | |
0d59ab81 | 1394 | if (req->r_con_filling_msg == con && req->r_reply == msg) { |
c16e7869 | 1395 | dout(" dropping con_filling_msg ref %p\n", con); |
0d59ab81 | 1396 | req->r_con_filling_msg = NULL; |
0d47766f | 1397 | con->ops->put(con); |
350b1c32 SW |
1398 | } |
1399 | ||
f24e9980 | 1400 | if (!req->r_got_reply) { |
95c96174 | 1401 | unsigned int bytes; |
f24e9980 | 1402 | |
1b83bef2 | 1403 | req->r_result = result; |
f24e9980 SW |
1404 | bytes = le32_to_cpu(msg->hdr.data_len); |
1405 | dout("handle_reply result %d bytes %d\n", req->r_result, | |
1406 | bytes); | |
1407 | if (req->r_result == 0) | |
1408 | req->r_result = bytes; | |
1409 | ||
1410 | /* in case this is a write and we need to replay, */ | |
1b83bef2 SW |
1411 | req->r_reassert_version.epoch = cpu_to_le32(reassert_epoch); |
1412 | req->r_reassert_version.version = cpu_to_le64(reassert_version); | |
f24e9980 SW |
1413 | |
1414 | req->r_got_reply = 1; | |
1415 | } else if ((flags & CEPH_OSD_FLAG_ONDISK) == 0) { | |
1416 | dout("handle_reply tid %llu dup ack\n", tid); | |
34b43a56 | 1417 | mutex_unlock(&osdc->request_mutex); |
f24e9980 SW |
1418 | goto done; |
1419 | } | |
1420 | ||
1421 | dout("handle_reply tid %llu flags %d\n", tid, flags); | |
1422 | ||
a40c4f10 YS |
1423 | if (req->r_linger && (flags & CEPH_OSD_FLAG_ONDISK)) |
1424 | __register_linger_request(osdc, req); | |
1425 | ||
f24e9980 | 1426 | /* either this is a read, or we got the safe response */ |
0ceed5db SW |
1427 | if (result < 0 || |
1428 | (flags & CEPH_OSD_FLAG_ONDISK) || | |
f24e9980 SW |
1429 | ((flags & CEPH_OSD_FLAG_WRITE) == 0)) |
1430 | __unregister_request(osdc, req); | |
1431 | ||
0d5af164 AE |
1432 | already_completed = req->r_completed; |
1433 | req->r_completed = 1; | |
f24e9980 | 1434 | mutex_unlock(&osdc->request_mutex); |
0d5af164 AE |
1435 | if (already_completed) |
1436 | goto done; | |
f24e9980 SW |
1437 | |
1438 | if (req->r_callback) | |
1439 | req->r_callback(req, msg); | |
1440 | else | |
03066f23 | 1441 | complete_all(&req->r_completion); |
f24e9980 | 1442 | |
25845472 SW |
1443 | if (flags & CEPH_OSD_FLAG_ONDISK) |
1444 | complete_request(req); | |
f24e9980 SW |
1445 | |
1446 | done: | |
a40c4f10 | 1447 | dout("req=%p req->r_linger=%d\n", req, req->r_linger); |
f24e9980 SW |
1448 | ceph_osdc_put_request(req); |
1449 | return; | |
1450 | ||
1b83bef2 SW |
1451 | bad_put: |
1452 | ceph_osdc_put_request(req); | |
f24e9980 | 1453 | bad: |
1b83bef2 SW |
1454 | pr_err("corrupt osd_op_reply got %d %d\n", |
1455 | (int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len)); | |
9ec7cab1 | 1456 | ceph_msg_dump(msg); |
f24e9980 SW |
1457 | } |
1458 | ||
6f6c7006 | 1459 | static void reset_changed_osds(struct ceph_osd_client *osdc) |
f24e9980 | 1460 | { |
f24e9980 | 1461 | struct rb_node *p, *n; |
f24e9980 | 1462 | |
6f6c7006 SW |
1463 | for (p = rb_first(&osdc->osds); p; p = n) { |
1464 | struct ceph_osd *osd = rb_entry(p, struct ceph_osd, o_node); | |
f24e9980 | 1465 | |
6f6c7006 SW |
1466 | n = rb_next(p); |
1467 | if (!ceph_osd_is_up(osdc->osdmap, osd->o_osd) || | |
1468 | memcmp(&osd->o_con.peer_addr, | |
1469 | ceph_osd_addr(osdc->osdmap, | |
1470 | osd->o_osd), | |
1471 | sizeof(struct ceph_entity_addr)) != 0) | |
1472 | __reset_osd(osdc, osd); | |
f24e9980 | 1473 | } |
422d2cb8 YS |
1474 | } |
1475 | ||
1476 | /* | |
6f6c7006 SW |
1477 | * Requeue requests whose mapping to an OSD has changed. If requests map to |
1478 | * no osd, request a new map. | |
422d2cb8 | 1479 | * |
e6d50f67 | 1480 | * Caller should hold map_sem for read. |
422d2cb8 | 1481 | */ |
38d6453c | 1482 | static void kick_requests(struct ceph_osd_client *osdc, int force_resend) |
422d2cb8 | 1483 | { |
a40c4f10 | 1484 | struct ceph_osd_request *req, *nreq; |
6f6c7006 SW |
1485 | struct rb_node *p; |
1486 | int needmap = 0; | |
1487 | int err; | |
422d2cb8 | 1488 | |
38d6453c | 1489 | dout("kick_requests %s\n", force_resend ? " (force resend)" : ""); |
422d2cb8 | 1490 | mutex_lock(&osdc->request_mutex); |
6194ea89 | 1491 | for (p = rb_first(&osdc->requests); p; ) { |
6f6c7006 | 1492 | req = rb_entry(p, struct ceph_osd_request, r_node); |
6194ea89 | 1493 | p = rb_next(p); |
ab60b16d AE |
1494 | |
1495 | /* | |
1496 | * For linger requests that have not yet been | |
1497 | * registered, move them to the linger list; they'll | |
1498 | * be sent to the osd in the loop below. Unregister | |
1499 | * the request before re-registering it as a linger | |
1500 | * request to ensure the __map_request() below | |
1501 | * will decide it needs to be sent. | |
1502 | */ | |
1503 | if (req->r_linger && list_empty(&req->r_linger_item)) { | |
1504 | dout("%p tid %llu restart on osd%d\n", | |
1505 | req, req->r_tid, | |
1506 | req->r_osd ? req->r_osd->o_osd : -1); | |
1507 | __unregister_request(osdc, req); | |
1508 | __register_linger_request(osdc, req); | |
1509 | continue; | |
1510 | } | |
1511 | ||
38d6453c | 1512 | err = __map_request(osdc, req, force_resend); |
6f6c7006 SW |
1513 | if (err < 0) |
1514 | continue; /* error */ | |
1515 | if (req->r_osd == NULL) { | |
1516 | dout("%p tid %llu maps to no osd\n", req, req->r_tid); | |
1517 | needmap++; /* request a newer map */ | |
1518 | } else if (err > 0) { | |
6194ea89 SW |
1519 | if (!req->r_linger) { |
1520 | dout("%p tid %llu requeued on osd%d\n", req, | |
1521 | req->r_tid, | |
1522 | req->r_osd ? req->r_osd->o_osd : -1); | |
a40c4f10 | 1523 | req->r_flags |= CEPH_OSD_FLAG_RETRY; |
6194ea89 SW |
1524 | } |
1525 | } | |
a40c4f10 YS |
1526 | } |
1527 | ||
1528 | list_for_each_entry_safe(req, nreq, &osdc->req_linger, | |
1529 | r_linger_item) { | |
1530 | dout("linger req=%p req->r_osd=%p\n", req, req->r_osd); | |
1531 | ||
38d6453c | 1532 | err = __map_request(osdc, req, force_resend); |
ab60b16d | 1533 | dout("__map_request returned %d\n", err); |
a40c4f10 YS |
1534 | if (err == 0) |
1535 | continue; /* no change and no osd was specified */ | |
1536 | if (err < 0) | |
1537 | continue; /* hrm! */ | |
1538 | if (req->r_osd == NULL) { | |
1539 | dout("tid %llu maps to no valid osd\n", req->r_tid); | |
1540 | needmap++; /* request a newer map */ | |
1541 | continue; | |
6f6c7006 | 1542 | } |
a40c4f10 YS |
1543 | |
1544 | dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid, | |
1545 | req->r_osd ? req->r_osd->o_osd : -1); | |
a40c4f10 | 1546 | __register_request(osdc, req); |
c89ce05e | 1547 | __unregister_linger_request(osdc, req); |
6f6c7006 | 1548 | } |
f24e9980 SW |
1549 | mutex_unlock(&osdc->request_mutex); |
1550 | ||
1551 | if (needmap) { | |
1552 | dout("%d requests for down osds, need new map\n", needmap); | |
1553 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1554 | } | |
e6d50f67 | 1555 | reset_changed_osds(osdc); |
422d2cb8 | 1556 | } |
6f6c7006 SW |
1557 | |
1558 | ||
f24e9980 SW |
1559 | /* |
1560 | * Process updated osd map. | |
1561 | * | |
1562 | * The message contains any number of incremental and full maps, normally | |
1563 | * indicating some sort of topology change in the cluster. Kick requests | |
1564 | * off to different OSDs as needed. | |
1565 | */ | |
1566 | void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) | |
1567 | { | |
1568 | void *p, *end, *next; | |
1569 | u32 nr_maps, maplen; | |
1570 | u32 epoch; | |
1571 | struct ceph_osdmap *newmap = NULL, *oldmap; | |
1572 | int err; | |
1573 | struct ceph_fsid fsid; | |
1574 | ||
1575 | dout("handle_map have %u\n", osdc->osdmap ? osdc->osdmap->epoch : 0); | |
1576 | p = msg->front.iov_base; | |
1577 | end = p + msg->front.iov_len; | |
1578 | ||
1579 | /* verify fsid */ | |
1580 | ceph_decode_need(&p, end, sizeof(fsid), bad); | |
1581 | ceph_decode_copy(&p, &fsid, sizeof(fsid)); | |
0743304d SW |
1582 | if (ceph_check_fsid(osdc->client, &fsid) < 0) |
1583 | return; | |
f24e9980 SW |
1584 | |
1585 | down_write(&osdc->map_sem); | |
1586 | ||
1587 | /* incremental maps */ | |
1588 | ceph_decode_32_safe(&p, end, nr_maps, bad); | |
1589 | dout(" %d inc maps\n", nr_maps); | |
1590 | while (nr_maps > 0) { | |
1591 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); | |
c89136ea SW |
1592 | epoch = ceph_decode_32(&p); |
1593 | maplen = ceph_decode_32(&p); | |
f24e9980 SW |
1594 | ceph_decode_need(&p, end, maplen, bad); |
1595 | next = p + maplen; | |
1596 | if (osdc->osdmap && osdc->osdmap->epoch+1 == epoch) { | |
1597 | dout("applying incremental map %u len %d\n", | |
1598 | epoch, maplen); | |
1599 | newmap = osdmap_apply_incremental(&p, next, | |
1600 | osdc->osdmap, | |
15d9882c | 1601 | &osdc->client->msgr); |
f24e9980 SW |
1602 | if (IS_ERR(newmap)) { |
1603 | err = PTR_ERR(newmap); | |
1604 | goto bad; | |
1605 | } | |
30dc6381 | 1606 | BUG_ON(!newmap); |
f24e9980 SW |
1607 | if (newmap != osdc->osdmap) { |
1608 | ceph_osdmap_destroy(osdc->osdmap); | |
1609 | osdc->osdmap = newmap; | |
1610 | } | |
38d6453c | 1611 | kick_requests(osdc, 0); |
f24e9980 SW |
1612 | } else { |
1613 | dout("ignoring incremental map %u len %d\n", | |
1614 | epoch, maplen); | |
1615 | } | |
1616 | p = next; | |
1617 | nr_maps--; | |
1618 | } | |
1619 | if (newmap) | |
1620 | goto done; | |
1621 | ||
1622 | /* full maps */ | |
1623 | ceph_decode_32_safe(&p, end, nr_maps, bad); | |
1624 | dout(" %d full maps\n", nr_maps); | |
1625 | while (nr_maps) { | |
1626 | ceph_decode_need(&p, end, 2*sizeof(u32), bad); | |
c89136ea SW |
1627 | epoch = ceph_decode_32(&p); |
1628 | maplen = ceph_decode_32(&p); | |
f24e9980 SW |
1629 | ceph_decode_need(&p, end, maplen, bad); |
1630 | if (nr_maps > 1) { | |
1631 | dout("skipping non-latest full map %u len %d\n", | |
1632 | epoch, maplen); | |
1633 | } else if (osdc->osdmap && osdc->osdmap->epoch >= epoch) { | |
1634 | dout("skipping full map %u len %d, " | |
1635 | "older than our %u\n", epoch, maplen, | |
1636 | osdc->osdmap->epoch); | |
1637 | } else { | |
38d6453c SW |
1638 | int skipped_map = 0; |
1639 | ||
f24e9980 SW |
1640 | dout("taking full map %u len %d\n", epoch, maplen); |
1641 | newmap = osdmap_decode(&p, p+maplen); | |
1642 | if (IS_ERR(newmap)) { | |
1643 | err = PTR_ERR(newmap); | |
1644 | goto bad; | |
1645 | } | |
30dc6381 | 1646 | BUG_ON(!newmap); |
f24e9980 SW |
1647 | oldmap = osdc->osdmap; |
1648 | osdc->osdmap = newmap; | |
38d6453c SW |
1649 | if (oldmap) { |
1650 | if (oldmap->epoch + 1 < newmap->epoch) | |
1651 | skipped_map = 1; | |
f24e9980 | 1652 | ceph_osdmap_destroy(oldmap); |
38d6453c SW |
1653 | } |
1654 | kick_requests(osdc, skipped_map); | |
f24e9980 SW |
1655 | } |
1656 | p += maplen; | |
1657 | nr_maps--; | |
1658 | } | |
1659 | ||
1660 | done: | |
1661 | downgrade_write(&osdc->map_sem); | |
1662 | ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); | |
cd634fb6 SW |
1663 | |
1664 | /* | |
1665 | * subscribe to subsequent osdmap updates if full to ensure | |
1666 | * we find out when we are no longer full and stop returning | |
1667 | * ENOSPC. | |
1668 | */ | |
1669 | if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) | |
1670 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1671 | ||
f9d25199 AE |
1672 | mutex_lock(&osdc->request_mutex); |
1673 | __send_queued(osdc); | |
1674 | mutex_unlock(&osdc->request_mutex); | |
f24e9980 | 1675 | up_read(&osdc->map_sem); |
03066f23 | 1676 | wake_up_all(&osdc->client->auth_wq); |
f24e9980 SW |
1677 | return; |
1678 | ||
1679 | bad: | |
1680 | pr_err("osdc handle_map corrupt msg\n"); | |
9ec7cab1 | 1681 | ceph_msg_dump(msg); |
f24e9980 SW |
1682 | up_write(&osdc->map_sem); |
1683 | return; | |
1684 | } | |
1685 | ||
a40c4f10 YS |
1686 | /* |
1687 | * watch/notify callback event infrastructure | |
1688 | * | |
1689 | * These callbacks are used both for watch and notify operations. | |
1690 | */ | |
1691 | static void __release_event(struct kref *kref) | |
1692 | { | |
1693 | struct ceph_osd_event *event = | |
1694 | container_of(kref, struct ceph_osd_event, kref); | |
1695 | ||
1696 | dout("__release_event %p\n", event); | |
1697 | kfree(event); | |
1698 | } | |
1699 | ||
1700 | static void get_event(struct ceph_osd_event *event) | |
1701 | { | |
1702 | kref_get(&event->kref); | |
1703 | } | |
1704 | ||
1705 | void ceph_osdc_put_event(struct ceph_osd_event *event) | |
1706 | { | |
1707 | kref_put(&event->kref, __release_event); | |
1708 | } | |
1709 | EXPORT_SYMBOL(ceph_osdc_put_event); | |
1710 | ||
1711 | static void __insert_event(struct ceph_osd_client *osdc, | |
1712 | struct ceph_osd_event *new) | |
1713 | { | |
1714 | struct rb_node **p = &osdc->event_tree.rb_node; | |
1715 | struct rb_node *parent = NULL; | |
1716 | struct ceph_osd_event *event = NULL; | |
1717 | ||
1718 | while (*p) { | |
1719 | parent = *p; | |
1720 | event = rb_entry(parent, struct ceph_osd_event, node); | |
1721 | if (new->cookie < event->cookie) | |
1722 | p = &(*p)->rb_left; | |
1723 | else if (new->cookie > event->cookie) | |
1724 | p = &(*p)->rb_right; | |
1725 | else | |
1726 | BUG(); | |
1727 | } | |
1728 | ||
1729 | rb_link_node(&new->node, parent, p); | |
1730 | rb_insert_color(&new->node, &osdc->event_tree); | |
1731 | } | |
1732 | ||
1733 | static struct ceph_osd_event *__find_event(struct ceph_osd_client *osdc, | |
1734 | u64 cookie) | |
1735 | { | |
1736 | struct rb_node **p = &osdc->event_tree.rb_node; | |
1737 | struct rb_node *parent = NULL; | |
1738 | struct ceph_osd_event *event = NULL; | |
1739 | ||
1740 | while (*p) { | |
1741 | parent = *p; | |
1742 | event = rb_entry(parent, struct ceph_osd_event, node); | |
1743 | if (cookie < event->cookie) | |
1744 | p = &(*p)->rb_left; | |
1745 | else if (cookie > event->cookie) | |
1746 | p = &(*p)->rb_right; | |
1747 | else | |
1748 | return event; | |
1749 | } | |
1750 | return NULL; | |
1751 | } | |
1752 | ||
1753 | static void __remove_event(struct ceph_osd_event *event) | |
1754 | { | |
1755 | struct ceph_osd_client *osdc = event->osdc; | |
1756 | ||
1757 | if (!RB_EMPTY_NODE(&event->node)) { | |
1758 | dout("__remove_event removed %p\n", event); | |
1759 | rb_erase(&event->node, &osdc->event_tree); | |
1760 | ceph_osdc_put_event(event); | |
1761 | } else { | |
1762 | dout("__remove_event didn't remove %p\n", event); | |
1763 | } | |
1764 | } | |
1765 | ||
1766 | int ceph_osdc_create_event(struct ceph_osd_client *osdc, | |
1767 | void (*event_cb)(u64, u64, u8, void *), | |
3c663bbd | 1768 | void *data, struct ceph_osd_event **pevent) |
a40c4f10 YS |
1769 | { |
1770 | struct ceph_osd_event *event; | |
1771 | ||
1772 | event = kmalloc(sizeof(*event), GFP_NOIO); | |
1773 | if (!event) | |
1774 | return -ENOMEM; | |
1775 | ||
1776 | dout("create_event %p\n", event); | |
1777 | event->cb = event_cb; | |
3c663bbd | 1778 | event->one_shot = 0; |
a40c4f10 YS |
1779 | event->data = data; |
1780 | event->osdc = osdc; | |
1781 | INIT_LIST_HEAD(&event->osd_node); | |
3ee5234d | 1782 | RB_CLEAR_NODE(&event->node); |
a40c4f10 YS |
1783 | kref_init(&event->kref); /* one ref for us */ |
1784 | kref_get(&event->kref); /* one ref for the caller */ | |
a40c4f10 YS |
1785 | |
1786 | spin_lock(&osdc->event_lock); | |
1787 | event->cookie = ++osdc->event_count; | |
1788 | __insert_event(osdc, event); | |
1789 | spin_unlock(&osdc->event_lock); | |
1790 | ||
1791 | *pevent = event; | |
1792 | return 0; | |
1793 | } | |
1794 | EXPORT_SYMBOL(ceph_osdc_create_event); | |
1795 | ||
1796 | void ceph_osdc_cancel_event(struct ceph_osd_event *event) | |
1797 | { | |
1798 | struct ceph_osd_client *osdc = event->osdc; | |
1799 | ||
1800 | dout("cancel_event %p\n", event); | |
1801 | spin_lock(&osdc->event_lock); | |
1802 | __remove_event(event); | |
1803 | spin_unlock(&osdc->event_lock); | |
1804 | ceph_osdc_put_event(event); /* caller's */ | |
1805 | } | |
1806 | EXPORT_SYMBOL(ceph_osdc_cancel_event); | |
1807 | ||
1808 | ||
1809 | static void do_event_work(struct work_struct *work) | |
1810 | { | |
1811 | struct ceph_osd_event_work *event_work = | |
1812 | container_of(work, struct ceph_osd_event_work, work); | |
1813 | struct ceph_osd_event *event = event_work->event; | |
1814 | u64 ver = event_work->ver; | |
1815 | u64 notify_id = event_work->notify_id; | |
1816 | u8 opcode = event_work->opcode; | |
1817 | ||
1818 | dout("do_event_work completing %p\n", event); | |
1819 | event->cb(ver, notify_id, opcode, event->data); | |
a40c4f10 YS |
1820 | dout("do_event_work completed %p\n", event); |
1821 | ceph_osdc_put_event(event); | |
1822 | kfree(event_work); | |
1823 | } | |
1824 | ||
1825 | ||
1826 | /* | |
1827 | * Process osd watch notifications | |
1828 | */ | |
3c663bbd AE |
1829 | static void handle_watch_notify(struct ceph_osd_client *osdc, |
1830 | struct ceph_msg *msg) | |
a40c4f10 YS |
1831 | { |
1832 | void *p, *end; | |
1833 | u8 proto_ver; | |
1834 | u64 cookie, ver, notify_id; | |
1835 | u8 opcode; | |
1836 | struct ceph_osd_event *event; | |
1837 | struct ceph_osd_event_work *event_work; | |
1838 | ||
1839 | p = msg->front.iov_base; | |
1840 | end = p + msg->front.iov_len; | |
1841 | ||
1842 | ceph_decode_8_safe(&p, end, proto_ver, bad); | |
1843 | ceph_decode_8_safe(&p, end, opcode, bad); | |
1844 | ceph_decode_64_safe(&p, end, cookie, bad); | |
1845 | ceph_decode_64_safe(&p, end, ver, bad); | |
1846 | ceph_decode_64_safe(&p, end, notify_id, bad); | |
1847 | ||
1848 | spin_lock(&osdc->event_lock); | |
1849 | event = __find_event(osdc, cookie); | |
1850 | if (event) { | |
3c663bbd | 1851 | BUG_ON(event->one_shot); |
a40c4f10 | 1852 | get_event(event); |
a40c4f10 YS |
1853 | } |
1854 | spin_unlock(&osdc->event_lock); | |
1855 | dout("handle_watch_notify cookie %lld ver %lld event %p\n", | |
1856 | cookie, ver, event); | |
1857 | if (event) { | |
1858 | event_work = kmalloc(sizeof(*event_work), GFP_NOIO); | |
a40c4f10 YS |
1859 | if (!event_work) { |
1860 | dout("ERROR: could not allocate event_work\n"); | |
1861 | goto done_err; | |
1862 | } | |
6b0ae409 | 1863 | INIT_WORK(&event_work->work, do_event_work); |
a40c4f10 YS |
1864 | event_work->event = event; |
1865 | event_work->ver = ver; | |
1866 | event_work->notify_id = notify_id; | |
1867 | event_work->opcode = opcode; | |
1868 | if (!queue_work(osdc->notify_wq, &event_work->work)) { | |
1869 | dout("WARNING: failed to queue notify event work\n"); | |
1870 | goto done_err; | |
1871 | } | |
1872 | } | |
1873 | ||
1874 | return; | |
1875 | ||
1876 | done_err: | |
a40c4f10 YS |
1877 | ceph_osdc_put_event(event); |
1878 | return; | |
1879 | ||
1880 | bad: | |
1881 | pr_err("osdc handle_watch_notify corrupt msg\n"); | |
1882 | return; | |
1883 | } | |
1884 | ||
70636773 AE |
1885 | static void ceph_osdc_msg_data_set(struct ceph_msg *msg, |
1886 | struct ceph_osd_data *osd_data) | |
f24e9980 | 1887 | { |
0fff87ec | 1888 | if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { |
f1baeb2b | 1889 | BUG_ON(osd_data->length > (u64) SIZE_MAX); |
ebf18f47 | 1890 | if (osd_data->length) |
70636773 AE |
1891 | ceph_msg_data_set_pages(msg, osd_data->pages, |
1892 | osd_data->length, osd_data->alignment); | |
9a5e6d09 AE |
1893 | } else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) { |
1894 | BUG_ON(!osd_data->pagelist->length); | |
1895 | ceph_msg_data_set_pagelist(msg, osd_data->pagelist); | |
68b4476b | 1896 | #ifdef CONFIG_BLOCK |
0fff87ec | 1897 | } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { |
70636773 | 1898 | ceph_msg_data_set_bio(msg, osd_data->bio); |
68b4476b | 1899 | #endif |
2ac2b7a6 | 1900 | } else { |
0fff87ec | 1901 | BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE); |
2ac2b7a6 | 1902 | } |
70636773 AE |
1903 | } |
1904 | ||
1905 | /* | |
1906 | * Register request, send initial attempt. | |
1907 | */ | |
1908 | int ceph_osdc_start_request(struct ceph_osd_client *osdc, | |
1909 | struct ceph_osd_request *req, | |
1910 | bool nofail) | |
1911 | { | |
1912 | int rc = 0; | |
1913 | ||
1914 | /* Set up response incoming data and request outgoing data fields */ | |
1915 | ||
1916 | ceph_osdc_msg_data_set(req->r_reply, &req->r_data_in); | |
1917 | ceph_osdc_msg_data_set(req->r_request, &req->r_data_out); | |
f24e9980 | 1918 | |
f24e9980 SW |
1919 | down_read(&osdc->map_sem); |
1920 | mutex_lock(&osdc->request_mutex); | |
dc4b870c | 1921 | __register_request(osdc, req); |
92451b49 AE |
1922 | WARN_ON(req->r_sent); |
1923 | rc = __map_request(osdc, req, 0); | |
1924 | if (rc < 0) { | |
1925 | if (nofail) { | |
1926 | dout("osdc_start_request failed map, " | |
1927 | " will retry %lld\n", req->r_tid); | |
1928 | rc = 0; | |
f24e9980 | 1929 | } |
92451b49 | 1930 | goto out_unlock; |
f24e9980 | 1931 | } |
92451b49 AE |
1932 | if (req->r_osd == NULL) { |
1933 | dout("send_request %p no up osds in pg\n", req); | |
1934 | ceph_monc_request_next_osdmap(&osdc->client->monc); | |
1935 | } else { | |
7e2766a1 | 1936 | __send_queued(osdc); |
92451b49 AE |
1937 | } |
1938 | rc = 0; | |
234af26f | 1939 | out_unlock: |
f24e9980 SW |
1940 | mutex_unlock(&osdc->request_mutex); |
1941 | up_read(&osdc->map_sem); | |
1942 | return rc; | |
1943 | } | |
3d14c5d2 | 1944 | EXPORT_SYMBOL(ceph_osdc_start_request); |
f24e9980 SW |
1945 | |
1946 | /* | |
1947 | * wait for a request to complete | |
1948 | */ | |
1949 | int ceph_osdc_wait_request(struct ceph_osd_client *osdc, | |
1950 | struct ceph_osd_request *req) | |
1951 | { | |
1952 | int rc; | |
1953 | ||
1954 | rc = wait_for_completion_interruptible(&req->r_completion); | |
1955 | if (rc < 0) { | |
1956 | mutex_lock(&osdc->request_mutex); | |
1957 | __cancel_request(req); | |
529cfcc4 | 1958 | __unregister_request(osdc, req); |
f24e9980 | 1959 | mutex_unlock(&osdc->request_mutex); |
25845472 | 1960 | complete_request(req); |
529cfcc4 | 1961 | dout("wait_request tid %llu canceled/timed out\n", req->r_tid); |
f24e9980 SW |
1962 | return rc; |
1963 | } | |
1964 | ||
1965 | dout("wait_request tid %llu result %d\n", req->r_tid, req->r_result); | |
1966 | return req->r_result; | |
1967 | } | |
3d14c5d2 | 1968 | EXPORT_SYMBOL(ceph_osdc_wait_request); |
f24e9980 SW |
1969 | |
1970 | /* | |
1971 | * sync - wait for all in-flight requests to flush. avoid starvation. | |
1972 | */ | |
1973 | void ceph_osdc_sync(struct ceph_osd_client *osdc) | |
1974 | { | |
1975 | struct ceph_osd_request *req; | |
1976 | u64 last_tid, next_tid = 0; | |
1977 | ||
1978 | mutex_lock(&osdc->request_mutex); | |
1979 | last_tid = osdc->last_tid; | |
1980 | while (1) { | |
1981 | req = __lookup_request_ge(osdc, next_tid); | |
1982 | if (!req) | |
1983 | break; | |
1984 | if (req->r_tid > last_tid) | |
1985 | break; | |
1986 | ||
1987 | next_tid = req->r_tid + 1; | |
1988 | if ((req->r_flags & CEPH_OSD_FLAG_WRITE) == 0) | |
1989 | continue; | |
1990 | ||
1991 | ceph_osdc_get_request(req); | |
1992 | mutex_unlock(&osdc->request_mutex); | |
1993 | dout("sync waiting on tid %llu (last is %llu)\n", | |
1994 | req->r_tid, last_tid); | |
1995 | wait_for_completion(&req->r_safe_completion); | |
1996 | mutex_lock(&osdc->request_mutex); | |
1997 | ceph_osdc_put_request(req); | |
1998 | } | |
1999 | mutex_unlock(&osdc->request_mutex); | |
2000 | dout("sync done (thru tid %llu)\n", last_tid); | |
2001 | } | |
3d14c5d2 | 2002 | EXPORT_SYMBOL(ceph_osdc_sync); |
f24e9980 SW |
2003 | |
2004 | /* | |
2005 | * init, shutdown | |
2006 | */ | |
2007 | int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client) | |
2008 | { | |
2009 | int err; | |
2010 | ||
2011 | dout("init\n"); | |
2012 | osdc->client = client; | |
2013 | osdc->osdmap = NULL; | |
2014 | init_rwsem(&osdc->map_sem); | |
2015 | init_completion(&osdc->map_waiters); | |
2016 | osdc->last_requested_map = 0; | |
2017 | mutex_init(&osdc->request_mutex); | |
f24e9980 SW |
2018 | osdc->last_tid = 0; |
2019 | osdc->osds = RB_ROOT; | |
f5a2041b | 2020 | INIT_LIST_HEAD(&osdc->osd_lru); |
f24e9980 | 2021 | osdc->requests = RB_ROOT; |
422d2cb8 | 2022 | INIT_LIST_HEAD(&osdc->req_lru); |
6f6c7006 SW |
2023 | INIT_LIST_HEAD(&osdc->req_unsent); |
2024 | INIT_LIST_HEAD(&osdc->req_notarget); | |
a40c4f10 | 2025 | INIT_LIST_HEAD(&osdc->req_linger); |
f24e9980 SW |
2026 | osdc->num_requests = 0; |
2027 | INIT_DELAYED_WORK(&osdc->timeout_work, handle_timeout); | |
f5a2041b | 2028 | INIT_DELAYED_WORK(&osdc->osds_timeout_work, handle_osds_timeout); |
a40c4f10 YS |
2029 | spin_lock_init(&osdc->event_lock); |
2030 | osdc->event_tree = RB_ROOT; | |
2031 | osdc->event_count = 0; | |
f5a2041b YS |
2032 | |
2033 | schedule_delayed_work(&osdc->osds_timeout_work, | |
3d14c5d2 | 2034 | round_jiffies_relative(osdc->client->options->osd_idle_ttl * HZ)); |
f24e9980 | 2035 | |
5f44f142 | 2036 | err = -ENOMEM; |
f24e9980 SW |
2037 | osdc->req_mempool = mempool_create_kmalloc_pool(10, |
2038 | sizeof(struct ceph_osd_request)); | |
2039 | if (!osdc->req_mempool) | |
5f44f142 | 2040 | goto out; |
f24e9980 | 2041 | |
d50b409f SW |
2042 | err = ceph_msgpool_init(&osdc->msgpool_op, CEPH_MSG_OSD_OP, |
2043 | OSD_OP_FRONT_LEN, 10, true, | |
4f48280e | 2044 | "osd_op"); |
f24e9980 | 2045 | if (err < 0) |
5f44f142 | 2046 | goto out_mempool; |
d50b409f | 2047 | err = ceph_msgpool_init(&osdc->msgpool_op_reply, CEPH_MSG_OSD_OPREPLY, |
4f48280e SW |
2048 | OSD_OPREPLY_FRONT_LEN, 10, true, |
2049 | "osd_op_reply"); | |
c16e7869 SW |
2050 | if (err < 0) |
2051 | goto out_msgpool; | |
a40c4f10 YS |
2052 | |
2053 | osdc->notify_wq = create_singlethread_workqueue("ceph-watch-notify"); | |
2054 | if (IS_ERR(osdc->notify_wq)) { | |
2055 | err = PTR_ERR(osdc->notify_wq); | |
2056 | osdc->notify_wq = NULL; | |
2057 | goto out_msgpool; | |
2058 | } | |
f24e9980 | 2059 | return 0; |
5f44f142 | 2060 | |
c16e7869 SW |
2061 | out_msgpool: |
2062 | ceph_msgpool_destroy(&osdc->msgpool_op); | |
5f44f142 SW |
2063 | out_mempool: |
2064 | mempool_destroy(osdc->req_mempool); | |
2065 | out: | |
2066 | return err; | |
f24e9980 SW |
2067 | } |
2068 | ||
2069 | void ceph_osdc_stop(struct ceph_osd_client *osdc) | |
2070 | { | |
a40c4f10 YS |
2071 | flush_workqueue(osdc->notify_wq); |
2072 | destroy_workqueue(osdc->notify_wq); | |
f24e9980 | 2073 | cancel_delayed_work_sync(&osdc->timeout_work); |
f5a2041b | 2074 | cancel_delayed_work_sync(&osdc->osds_timeout_work); |
f24e9980 SW |
2075 | if (osdc->osdmap) { |
2076 | ceph_osdmap_destroy(osdc->osdmap); | |
2077 | osdc->osdmap = NULL; | |
2078 | } | |
aca420bc | 2079 | remove_all_osds(osdc); |
f24e9980 SW |
2080 | mempool_destroy(osdc->req_mempool); |
2081 | ceph_msgpool_destroy(&osdc->msgpool_op); | |
c16e7869 | 2082 | ceph_msgpool_destroy(&osdc->msgpool_op_reply); |
f24e9980 SW |
2083 | } |
2084 | ||
2085 | /* | |
2086 | * Read some contiguous pages. If we cross a stripe boundary, shorten | |
2087 | * *plen. Return number of bytes read, or error. | |
2088 | */ | |
2089 | int ceph_osdc_readpages(struct ceph_osd_client *osdc, | |
2090 | struct ceph_vino vino, struct ceph_file_layout *layout, | |
2091 | u64 off, u64 *plen, | |
2092 | u32 truncate_seq, u64 truncate_size, | |
b7495fc2 | 2093 | struct page **pages, int num_pages, int page_align) |
f24e9980 SW |
2094 | { |
2095 | struct ceph_osd_request *req; | |
0fff87ec | 2096 | struct ceph_osd_data *osd_data; |
f24e9980 SW |
2097 | int rc = 0; |
2098 | ||
2099 | dout("readpages on ino %llx.%llx on %llu~%llu\n", vino.ino, | |
2100 | vino.snap, off, *plen); | |
2101 | req = ceph_osdc_new_request(osdc, layout, vino, off, plen, | |
2102 | CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ, | |
2103 | NULL, 0, truncate_seq, truncate_size, NULL, | |
153e5167 | 2104 | false); |
6816282d SW |
2105 | if (IS_ERR(req)) |
2106 | return PTR_ERR(req); | |
f24e9980 SW |
2107 | |
2108 | /* it may be a short read due to an object boundary */ | |
0fff87ec AE |
2109 | |
2110 | osd_data = &req->r_data_in; | |
2111 | osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; | |
2112 | osd_data->pages = pages; | |
e0c59487 | 2113 | osd_data->length = *plen; |
0fff87ec | 2114 | osd_data->alignment = page_align; |
f24e9980 | 2115 | |
e0c59487 AE |
2116 | dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n", |
2117 | off, *plen, osd_data->length, page_align); | |
f24e9980 SW |
2118 | |
2119 | rc = ceph_osdc_start_request(osdc, req, false); | |
2120 | if (!rc) | |
2121 | rc = ceph_osdc_wait_request(osdc, req); | |
2122 | ||
2123 | ceph_osdc_put_request(req); | |
2124 | dout("readpages result %d\n", rc); | |
2125 | return rc; | |
2126 | } | |
3d14c5d2 | 2127 | EXPORT_SYMBOL(ceph_osdc_readpages); |
f24e9980 SW |
2128 | |
2129 | /* | |
2130 | * do a synchronous write on N pages | |
2131 | */ | |
2132 | int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino, | |
2133 | struct ceph_file_layout *layout, | |
2134 | struct ceph_snap_context *snapc, | |
2135 | u64 off, u64 len, | |
2136 | u32 truncate_seq, u64 truncate_size, | |
2137 | struct timespec *mtime, | |
24808826 | 2138 | struct page **pages, int num_pages) |
f24e9980 SW |
2139 | { |
2140 | struct ceph_osd_request *req; | |
0fff87ec | 2141 | struct ceph_osd_data *osd_data; |
f24e9980 | 2142 | int rc = 0; |
b7495fc2 | 2143 | int page_align = off & ~PAGE_MASK; |
f24e9980 SW |
2144 | |
2145 | BUG_ON(vino.snap != CEPH_NOSNAP); | |
2146 | req = ceph_osdc_new_request(osdc, layout, vino, off, &len, | |
2147 | CEPH_OSD_OP_WRITE, | |
24808826 | 2148 | CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE, |
fbf8685f | 2149 | snapc, 0, |
f24e9980 | 2150 | truncate_seq, truncate_size, mtime, |
153e5167 | 2151 | true); |
6816282d SW |
2152 | if (IS_ERR(req)) |
2153 | return PTR_ERR(req); | |
f24e9980 SW |
2154 | |
2155 | /* it may be a short write due to an object boundary */ | |
0fff87ec AE |
2156 | osd_data = &req->r_data_out; |
2157 | osd_data->type = CEPH_OSD_DATA_TYPE_PAGES; | |
2158 | osd_data->pages = pages; | |
e0c59487 | 2159 | osd_data->length = len; |
0fff87ec | 2160 | osd_data->alignment = page_align; |
e0c59487 | 2161 | dout("writepages %llu~%llu (%llu bytes)\n", off, len, osd_data->length); |
f24e9980 | 2162 | |
87f979d3 | 2163 | rc = ceph_osdc_start_request(osdc, req, true); |
f24e9980 SW |
2164 | if (!rc) |
2165 | rc = ceph_osdc_wait_request(osdc, req); | |
2166 | ||
2167 | ceph_osdc_put_request(req); | |
2168 | if (rc == 0) | |
2169 | rc = len; | |
2170 | dout("writepages result %d\n", rc); | |
2171 | return rc; | |
2172 | } | |
3d14c5d2 | 2173 | EXPORT_SYMBOL(ceph_osdc_writepages); |
f24e9980 SW |
2174 | |
2175 | /* | |
2176 | * handle incoming message | |
2177 | */ | |
2178 | static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) | |
2179 | { | |
2180 | struct ceph_osd *osd = con->private; | |
32c895e7 | 2181 | struct ceph_osd_client *osdc; |
f24e9980 SW |
2182 | int type = le16_to_cpu(msg->hdr.type); |
2183 | ||
2184 | if (!osd) | |
4a32f93d | 2185 | goto out; |
32c895e7 | 2186 | osdc = osd->o_osdc; |
f24e9980 SW |
2187 | |
2188 | switch (type) { | |
2189 | case CEPH_MSG_OSD_MAP: | |
2190 | ceph_osdc_handle_map(osdc, msg); | |
2191 | break; | |
2192 | case CEPH_MSG_OSD_OPREPLY: | |
350b1c32 | 2193 | handle_reply(osdc, msg, con); |
f24e9980 | 2194 | break; |
a40c4f10 YS |
2195 | case CEPH_MSG_WATCH_NOTIFY: |
2196 | handle_watch_notify(osdc, msg); | |
2197 | break; | |
f24e9980 SW |
2198 | |
2199 | default: | |
2200 | pr_err("received unknown message type %d %s\n", type, | |
2201 | ceph_msg_type_name(type)); | |
2202 | } | |
4a32f93d | 2203 | out: |
f24e9980 SW |
2204 | ceph_msg_put(msg); |
2205 | } | |
2206 | ||
5b3a4db3 | 2207 | /* |
21b667f6 SW |
2208 | * lookup and return message for incoming reply. set up reply message |
2209 | * pages. | |
5b3a4db3 SW |
2210 | */ |
2211 | static struct ceph_msg *get_reply(struct ceph_connection *con, | |
2450418c YS |
2212 | struct ceph_msg_header *hdr, |
2213 | int *skip) | |
f24e9980 SW |
2214 | { |
2215 | struct ceph_osd *osd = con->private; | |
2216 | struct ceph_osd_client *osdc = osd->o_osdc; | |
2450418c | 2217 | struct ceph_msg *m; |
0547a9b3 | 2218 | struct ceph_osd_request *req; |
5b3a4db3 SW |
2219 | int front = le32_to_cpu(hdr->front_len); |
2220 | int data_len = le32_to_cpu(hdr->data_len); | |
0547a9b3 | 2221 | u64 tid; |
f24e9980 | 2222 | |
0547a9b3 YS |
2223 | tid = le64_to_cpu(hdr->tid); |
2224 | mutex_lock(&osdc->request_mutex); | |
2225 | req = __lookup_request(osdc, tid); | |
2226 | if (!req) { | |
2227 | *skip = 1; | |
2228 | m = NULL; | |
756a16a5 SW |
2229 | dout("get_reply unknown tid %llu from osd%d\n", tid, |
2230 | osd->o_osd); | |
0547a9b3 YS |
2231 | goto out; |
2232 | } | |
c16e7869 SW |
2233 | |
2234 | if (req->r_con_filling_msg) { | |
8921d114 | 2235 | dout("%s revoking msg %p from old con %p\n", __func__, |
c16e7869 | 2236 | req->r_reply, req->r_con_filling_msg); |
8921d114 | 2237 | ceph_msg_revoke_incoming(req->r_reply); |
0d47766f | 2238 | req->r_con_filling_msg->ops->put(req->r_con_filling_msg); |
6f46cb29 | 2239 | req->r_con_filling_msg = NULL; |
0547a9b3 YS |
2240 | } |
2241 | ||
c16e7869 SW |
2242 | if (front > req->r_reply->front.iov_len) { |
2243 | pr_warning("get_reply front %d > preallocated %d\n", | |
2244 | front, (int)req->r_reply->front.iov_len); | |
b61c2763 | 2245 | m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front, GFP_NOFS, false); |
a79832f2 | 2246 | if (!m) |
c16e7869 SW |
2247 | goto out; |
2248 | ceph_msg_put(req->r_reply); | |
2249 | req->r_reply = m; | |
2250 | } | |
2251 | m = ceph_msg_get(req->r_reply); | |
2252 | ||
0547a9b3 | 2253 | if (data_len > 0) { |
0fff87ec AE |
2254 | struct ceph_osd_data *osd_data = &req->r_data_in; |
2255 | ||
2256 | if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { | |
0fff87ec | 2257 | if (osd_data->pages && |
e0c59487 | 2258 | unlikely(osd_data->length < data_len)) { |
2ac2b7a6 | 2259 | |
e0c59487 AE |
2260 | pr_warning("tid %lld reply has %d bytes " |
2261 | "we had only %llu bytes ready\n", | |
2262 | tid, data_len, osd_data->length); | |
2ac2b7a6 AE |
2263 | *skip = 1; |
2264 | ceph_msg_put(m); | |
2265 | m = NULL; | |
2266 | goto out; | |
2267 | } | |
2ac2b7a6 | 2268 | } |
0547a9b3 | 2269 | } |
5b3a4db3 | 2270 | *skip = 0; |
0d47766f | 2271 | req->r_con_filling_msg = con->ops->get(con); |
c16e7869 | 2272 | dout("get_reply tid %lld %p\n", tid, m); |
0547a9b3 YS |
2273 | |
2274 | out: | |
2275 | mutex_unlock(&osdc->request_mutex); | |
2450418c | 2276 | return m; |
5b3a4db3 SW |
2277 | |
2278 | } | |
2279 | ||
2280 | static struct ceph_msg *alloc_msg(struct ceph_connection *con, | |
2281 | struct ceph_msg_header *hdr, | |
2282 | int *skip) | |
2283 | { | |
2284 | struct ceph_osd *osd = con->private; | |
2285 | int type = le16_to_cpu(hdr->type); | |
2286 | int front = le32_to_cpu(hdr->front_len); | |
2287 | ||
1c20f2d2 | 2288 | *skip = 0; |
5b3a4db3 SW |
2289 | switch (type) { |
2290 | case CEPH_MSG_OSD_MAP: | |
a40c4f10 | 2291 | case CEPH_MSG_WATCH_NOTIFY: |
b61c2763 | 2292 | return ceph_msg_new(type, front, GFP_NOFS, false); |
5b3a4db3 SW |
2293 | case CEPH_MSG_OSD_OPREPLY: |
2294 | return get_reply(con, hdr, skip); | |
2295 | default: | |
2296 | pr_info("alloc_msg unexpected msg type %d from osd%d\n", type, | |
2297 | osd->o_osd); | |
2298 | *skip = 1; | |
2299 | return NULL; | |
2300 | } | |
f24e9980 SW |
2301 | } |
2302 | ||
2303 | /* | |
2304 | * Wrappers to refcount containing ceph_osd struct | |
2305 | */ | |
2306 | static struct ceph_connection *get_osd_con(struct ceph_connection *con) | |
2307 | { | |
2308 | struct ceph_osd *osd = con->private; | |
2309 | if (get_osd(osd)) | |
2310 | return con; | |
2311 | return NULL; | |
2312 | } | |
2313 | ||
2314 | static void put_osd_con(struct ceph_connection *con) | |
2315 | { | |
2316 | struct ceph_osd *osd = con->private; | |
2317 | put_osd(osd); | |
2318 | } | |
2319 | ||
4e7a5dcd SW |
2320 | /* |
2321 | * authentication | |
2322 | */ | |
a3530df3 AE |
2323 | /* |
2324 | * Note: returned pointer is the address of a structure that's | |
2325 | * managed separately. Caller must *not* attempt to free it. | |
2326 | */ | |
2327 | static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con, | |
8f43fb53 | 2328 | int *proto, int force_new) |
4e7a5dcd SW |
2329 | { |
2330 | struct ceph_osd *o = con->private; | |
2331 | struct ceph_osd_client *osdc = o->o_osdc; | |
2332 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
74f1869f | 2333 | struct ceph_auth_handshake *auth = &o->o_auth; |
4e7a5dcd | 2334 | |
74f1869f | 2335 | if (force_new && auth->authorizer) { |
27859f97 | 2336 | ceph_auth_destroy_authorizer(ac, auth->authorizer); |
74f1869f AE |
2337 | auth->authorizer = NULL; |
2338 | } | |
27859f97 SW |
2339 | if (!auth->authorizer) { |
2340 | int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD, | |
2341 | auth); | |
4e7a5dcd | 2342 | if (ret) |
a3530df3 | 2343 | return ERR_PTR(ret); |
27859f97 SW |
2344 | } else { |
2345 | int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD, | |
0bed9b5c SW |
2346 | auth); |
2347 | if (ret) | |
2348 | return ERR_PTR(ret); | |
4e7a5dcd | 2349 | } |
4e7a5dcd | 2350 | *proto = ac->protocol; |
74f1869f | 2351 | |
a3530df3 | 2352 | return auth; |
4e7a5dcd SW |
2353 | } |
2354 | ||
2355 | ||
2356 | static int verify_authorizer_reply(struct ceph_connection *con, int len) | |
2357 | { | |
2358 | struct ceph_osd *o = con->private; | |
2359 | struct ceph_osd_client *osdc = o->o_osdc; | |
2360 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
2361 | ||
27859f97 | 2362 | return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len); |
4e7a5dcd SW |
2363 | } |
2364 | ||
9bd2e6f8 SW |
2365 | static int invalidate_authorizer(struct ceph_connection *con) |
2366 | { | |
2367 | struct ceph_osd *o = con->private; | |
2368 | struct ceph_osd_client *osdc = o->o_osdc; | |
2369 | struct ceph_auth_client *ac = osdc->client->monc.auth; | |
2370 | ||
27859f97 | 2371 | ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD); |
9bd2e6f8 SW |
2372 | return ceph_monc_validate_auth(&osdc->client->monc); |
2373 | } | |
4e7a5dcd | 2374 | |
9e32789f | 2375 | static const struct ceph_connection_operations osd_con_ops = { |
f24e9980 SW |
2376 | .get = get_osd_con, |
2377 | .put = put_osd_con, | |
2378 | .dispatch = dispatch, | |
4e7a5dcd SW |
2379 | .get_authorizer = get_authorizer, |
2380 | .verify_authorizer_reply = verify_authorizer_reply, | |
9bd2e6f8 | 2381 | .invalidate_authorizer = invalidate_authorizer, |
f24e9980 | 2382 | .alloc_msg = alloc_msg, |
81b024e7 | 2383 | .fault = osd_reset, |
f24e9980 | 2384 | }; |