2 #include <linux/ceph/ceph_debug.h>
4 #include <linux/module.h>
6 #include <linux/highmem.h>
8 #include <linux/pagemap.h>
9 #include <linux/slab.h>
10 #include <linux/uaccess.h>
12 #include <linux/bio.h>
15 #include <linux/ceph/libceph.h>
16 #include <linux/ceph/osd_client.h>
17 #include <linux/ceph/messenger.h>
18 #include <linux/ceph/decode.h>
19 #include <linux/ceph/auth.h>
20 #include <linux/ceph/pagelist.h>
22 #define OSD_OP_FRONT_LEN 4096
23 #define OSD_OPREPLY_FRONT_LEN 512
25 static struct kmem_cache
*ceph_osd_request_cache
;
27 static const struct ceph_connection_operations osd_con_ops
;
29 static void __send_queued(struct ceph_osd_client
*osdc
);
30 static int __reset_osd(struct ceph_osd_client
*osdc
, struct ceph_osd
*osd
);
31 static void __register_request(struct ceph_osd_client
*osdc
,
32 struct ceph_osd_request
*req
);
33 static void __unregister_request(struct ceph_osd_client
*osdc
,
34 struct ceph_osd_request
*req
);
35 static void __unregister_linger_request(struct ceph_osd_client
*osdc
,
36 struct ceph_osd_request
*req
);
37 static void __enqueue_request(struct ceph_osd_request
*req
);
38 static void __send_request(struct ceph_osd_client
*osdc
,
39 struct ceph_osd_request
*req
);
42 * Implement client access to distributed object storage cluster.
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
50 * Cluster membership and the mapping of data objects onto storage devices
51 * are described by the osd map.
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.
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
64 * fill osd op in request message.
66 static int calc_layout(struct ceph_file_layout
*layout
, u64 off
, u64
*plen
,
67 u64
*objnum
, u64
*objoff
, u64
*objlen
)
73 r
= ceph_calc_file_object_mapping(layout
, off
, orig_len
, objnum
,
77 if (*objlen
< orig_len
) {
79 dout(" skipping last %llu, final file extent %llu~%llu\n",
80 orig_len
- *plen
, off
, *plen
);
83 dout("calc_layout objnum=%llx %llu~%llu\n", *objnum
, *objoff
, *objlen
);
88 static void ceph_osd_data_init(struct ceph_osd_data
*osd_data
)
90 memset(osd_data
, 0, sizeof (*osd_data
));
91 osd_data
->type
= CEPH_OSD_DATA_TYPE_NONE
;
94 static void ceph_osd_data_pages_init(struct ceph_osd_data
*osd_data
,
95 struct page
**pages
, u64 length
, u32 alignment
,
96 bool pages_from_pool
, bool own_pages
)
98 osd_data
->type
= CEPH_OSD_DATA_TYPE_PAGES
;
99 osd_data
->pages
= pages
;
100 osd_data
->length
= length
;
101 osd_data
->alignment
= alignment
;
102 osd_data
->pages_from_pool
= pages_from_pool
;
103 osd_data
->own_pages
= own_pages
;
106 static void ceph_osd_data_pagelist_init(struct ceph_osd_data
*osd_data
,
107 struct ceph_pagelist
*pagelist
)
109 osd_data
->type
= CEPH_OSD_DATA_TYPE_PAGELIST
;
110 osd_data
->pagelist
= pagelist
;
114 static void ceph_osd_data_bio_init(struct ceph_osd_data
*osd_data
,
115 struct bio
*bio
, size_t bio_length
)
117 osd_data
->type
= CEPH_OSD_DATA_TYPE_BIO
;
119 osd_data
->bio_length
= bio_length
;
121 #endif /* CONFIG_BLOCK */
123 #define osd_req_op_data(oreq, whch, typ, fld) \
125 BUG_ON(whch >= (oreq)->r_num_ops); \
126 &(oreq)->r_ops[whch].typ.fld; \
129 static struct ceph_osd_data
*
130 osd_req_op_raw_data_in(struct ceph_osd_request
*osd_req
, unsigned int which
)
132 BUG_ON(which
>= osd_req
->r_num_ops
);
134 return &osd_req
->r_ops
[which
].raw_data_in
;
137 struct ceph_osd_data
*
138 osd_req_op_extent_osd_data(struct ceph_osd_request
*osd_req
,
141 return osd_req_op_data(osd_req
, which
, extent
, osd_data
);
143 EXPORT_SYMBOL(osd_req_op_extent_osd_data
);
145 struct ceph_osd_data
*
146 osd_req_op_cls_response_data(struct ceph_osd_request
*osd_req
,
149 return osd_req_op_data(osd_req
, which
, cls
, response_data
);
151 EXPORT_SYMBOL(osd_req_op_cls_response_data
); /* ??? */
153 void osd_req_op_raw_data_in_pages(struct ceph_osd_request
*osd_req
,
154 unsigned int which
, struct page
**pages
,
155 u64 length
, u32 alignment
,
156 bool pages_from_pool
, bool own_pages
)
158 struct ceph_osd_data
*osd_data
;
160 osd_data
= osd_req_op_raw_data_in(osd_req
, which
);
161 ceph_osd_data_pages_init(osd_data
, pages
, length
, alignment
,
162 pages_from_pool
, own_pages
);
164 EXPORT_SYMBOL(osd_req_op_raw_data_in_pages
);
166 void osd_req_op_extent_osd_data_pages(struct ceph_osd_request
*osd_req
,
167 unsigned int which
, struct page
**pages
,
168 u64 length
, u32 alignment
,
169 bool pages_from_pool
, bool own_pages
)
171 struct ceph_osd_data
*osd_data
;
173 osd_data
= osd_req_op_data(osd_req
, which
, extent
, osd_data
);
174 ceph_osd_data_pages_init(osd_data
, pages
, length
, alignment
,
175 pages_from_pool
, own_pages
);
177 EXPORT_SYMBOL(osd_req_op_extent_osd_data_pages
);
179 void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request
*osd_req
,
180 unsigned int which
, struct ceph_pagelist
*pagelist
)
182 struct ceph_osd_data
*osd_data
;
184 osd_data
= osd_req_op_data(osd_req
, which
, extent
, osd_data
);
185 ceph_osd_data_pagelist_init(osd_data
, pagelist
);
187 EXPORT_SYMBOL(osd_req_op_extent_osd_data_pagelist
);
190 void osd_req_op_extent_osd_data_bio(struct ceph_osd_request
*osd_req
,
191 unsigned int which
, struct bio
*bio
, size_t bio_length
)
193 struct ceph_osd_data
*osd_data
;
195 osd_data
= osd_req_op_data(osd_req
, which
, extent
, osd_data
);
196 ceph_osd_data_bio_init(osd_data
, bio
, bio_length
);
198 EXPORT_SYMBOL(osd_req_op_extent_osd_data_bio
);
199 #endif /* CONFIG_BLOCK */
201 static void osd_req_op_cls_request_info_pagelist(
202 struct ceph_osd_request
*osd_req
,
203 unsigned int which
, struct ceph_pagelist
*pagelist
)
205 struct ceph_osd_data
*osd_data
;
207 osd_data
= osd_req_op_data(osd_req
, which
, cls
, request_info
);
208 ceph_osd_data_pagelist_init(osd_data
, pagelist
);
211 void osd_req_op_cls_request_data_pagelist(
212 struct ceph_osd_request
*osd_req
,
213 unsigned int which
, struct ceph_pagelist
*pagelist
)
215 struct ceph_osd_data
*osd_data
;
217 osd_data
= osd_req_op_data(osd_req
, which
, cls
, request_data
);
218 ceph_osd_data_pagelist_init(osd_data
, pagelist
);
220 EXPORT_SYMBOL(osd_req_op_cls_request_data_pagelist
);
222 void osd_req_op_cls_request_data_pages(struct ceph_osd_request
*osd_req
,
223 unsigned int which
, struct page
**pages
, u64 length
,
224 u32 alignment
, bool pages_from_pool
, bool own_pages
)
226 struct ceph_osd_data
*osd_data
;
228 osd_data
= osd_req_op_data(osd_req
, which
, cls
, request_data
);
229 ceph_osd_data_pages_init(osd_data
, pages
, length
, alignment
,
230 pages_from_pool
, own_pages
);
232 EXPORT_SYMBOL(osd_req_op_cls_request_data_pages
);
234 void osd_req_op_cls_response_data_pages(struct ceph_osd_request
*osd_req
,
235 unsigned int which
, struct page
**pages
, u64 length
,
236 u32 alignment
, bool pages_from_pool
, bool own_pages
)
238 struct ceph_osd_data
*osd_data
;
240 osd_data
= osd_req_op_data(osd_req
, which
, cls
, response_data
);
241 ceph_osd_data_pages_init(osd_data
, pages
, length
, alignment
,
242 pages_from_pool
, own_pages
);
244 EXPORT_SYMBOL(osd_req_op_cls_response_data_pages
);
246 static u64
ceph_osd_data_length(struct ceph_osd_data
*osd_data
)
248 switch (osd_data
->type
) {
249 case CEPH_OSD_DATA_TYPE_NONE
:
251 case CEPH_OSD_DATA_TYPE_PAGES
:
252 return osd_data
->length
;
253 case CEPH_OSD_DATA_TYPE_PAGELIST
:
254 return (u64
)osd_data
->pagelist
->length
;
256 case CEPH_OSD_DATA_TYPE_BIO
:
257 return (u64
)osd_data
->bio_length
;
258 #endif /* CONFIG_BLOCK */
260 WARN(true, "unrecognized data type %d\n", (int)osd_data
->type
);
265 static void ceph_osd_data_release(struct ceph_osd_data
*osd_data
)
267 if (osd_data
->type
== CEPH_OSD_DATA_TYPE_PAGES
&& osd_data
->own_pages
) {
270 num_pages
= calc_pages_for((u64
)osd_data
->alignment
,
271 (u64
)osd_data
->length
);
272 ceph_release_page_vector(osd_data
->pages
, num_pages
);
274 ceph_osd_data_init(osd_data
);
277 static void osd_req_op_data_release(struct ceph_osd_request
*osd_req
,
280 struct ceph_osd_req_op
*op
;
282 BUG_ON(which
>= osd_req
->r_num_ops
);
283 op
= &osd_req
->r_ops
[which
];
286 case CEPH_OSD_OP_READ
:
287 case CEPH_OSD_OP_WRITE
:
288 ceph_osd_data_release(&op
->extent
.osd_data
);
290 case CEPH_OSD_OP_CALL
:
291 ceph_osd_data_release(&op
->cls
.request_info
);
292 ceph_osd_data_release(&op
->cls
.request_data
);
293 ceph_osd_data_release(&op
->cls
.response_data
);
303 static void ceph_osdc_release_request(struct kref
*kref
)
305 struct ceph_osd_request
*req
= container_of(kref
,
306 struct ceph_osd_request
, r_kref
);
309 dout("%s %p (r_request %p r_reply %p)\n", __func__
, req
,
310 req
->r_request
, req
->r_reply
);
311 WARN_ON(!RB_EMPTY_NODE(&req
->r_node
));
312 WARN_ON(!list_empty(&req
->r_req_lru_item
));
313 WARN_ON(!list_empty(&req
->r_osd_item
));
314 WARN_ON(!list_empty(&req
->r_linger_item
));
315 WARN_ON(!list_empty(&req
->r_linger_osd_item
));
319 ceph_msg_put(req
->r_request
);
321 ceph_msg_revoke_incoming(req
->r_reply
);
322 ceph_msg_put(req
->r_reply
);
325 for (which
= 0; which
< req
->r_num_ops
; which
++)
326 osd_req_op_data_release(req
, which
);
328 ceph_put_snap_context(req
->r_snapc
);
330 mempool_free(req
, req
->r_osdc
->req_mempool
);
332 kmem_cache_free(ceph_osd_request_cache
, req
);
336 void ceph_osdc_get_request(struct ceph_osd_request
*req
)
338 dout("%s %p (was %d)\n", __func__
, req
,
339 atomic_read(&req
->r_kref
.refcount
));
340 kref_get(&req
->r_kref
);
342 EXPORT_SYMBOL(ceph_osdc_get_request
);
344 void ceph_osdc_put_request(struct ceph_osd_request
*req
)
346 dout("%s %p (was %d)\n", __func__
, req
,
347 atomic_read(&req
->r_kref
.refcount
));
348 kref_put(&req
->r_kref
, ceph_osdc_release_request
);
350 EXPORT_SYMBOL(ceph_osdc_put_request
);
352 struct ceph_osd_request
*ceph_osdc_alloc_request(struct ceph_osd_client
*osdc
,
353 struct ceph_snap_context
*snapc
,
354 unsigned int num_ops
,
358 struct ceph_osd_request
*req
;
359 struct ceph_msg
*msg
;
362 BUILD_BUG_ON(CEPH_OSD_MAX_OP
> U16_MAX
);
363 BUG_ON(num_ops
> CEPH_OSD_MAX_OP
);
365 msg_size
= 4 + 4 + 8 + 8 + 4+8;
366 msg_size
+= 2 + 4 + 8 + 4 + 4; /* oloc */
367 msg_size
+= 1 + 8 + 4 + 4; /* pg_t */
368 msg_size
+= 4 + CEPH_MAX_OID_NAME_LEN
; /* oid */
369 msg_size
+= 2 + num_ops
*sizeof(struct ceph_osd_op
);
370 msg_size
+= 8; /* snapid */
371 msg_size
+= 8; /* snap_seq */
372 msg_size
+= 8 * (snapc
? snapc
->num_snaps
: 0); /* snaps */
376 req
= mempool_alloc(osdc
->req_mempool
, gfp_flags
);
377 memset(req
, 0, sizeof(*req
));
379 req
= kmem_cache_zalloc(ceph_osd_request_cache
, gfp_flags
);
385 req
->r_mempool
= use_mempool
;
386 req
->r_num_ops
= num_ops
;
388 kref_init(&req
->r_kref
);
389 init_completion(&req
->r_completion
);
390 init_completion(&req
->r_safe_completion
);
391 RB_CLEAR_NODE(&req
->r_node
);
392 INIT_LIST_HEAD(&req
->r_unsafe_item
);
393 INIT_LIST_HEAD(&req
->r_linger_item
);
394 INIT_LIST_HEAD(&req
->r_linger_osd_item
);
395 INIT_LIST_HEAD(&req
->r_req_lru_item
);
396 INIT_LIST_HEAD(&req
->r_osd_item
);
398 req
->r_base_oloc
.pool
= -1;
399 req
->r_target_oloc
.pool
= -1;
401 /* create reply message */
403 msg
= ceph_msgpool_get(&osdc
->msgpool_op_reply
, 0);
405 msg
= ceph_msg_new(CEPH_MSG_OSD_OPREPLY
,
406 OSD_OPREPLY_FRONT_LEN
, gfp_flags
, true);
408 ceph_osdc_put_request(req
);
413 /* create request message; allow space for oid */
415 msg
= ceph_msgpool_get(&osdc
->msgpool_op
, 0);
417 msg
= ceph_msg_new(CEPH_MSG_OSD_OP
, msg_size
, gfp_flags
, true);
419 ceph_osdc_put_request(req
);
423 memset(msg
->front
.iov_base
, 0, msg
->front
.iov_len
);
425 req
->r_request
= msg
;
429 EXPORT_SYMBOL(ceph_osdc_alloc_request
);
431 static bool osd_req_opcode_valid(u16 opcode
)
434 #define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return true;
435 __CEPH_FORALL_OSD_OPS(GENERATE_CASE
)
443 * This is an osd op init function for opcodes that have no data or
444 * other information associated with them. It also serves as a
445 * common init routine for all the other init functions, below.
447 static struct ceph_osd_req_op
*
448 _osd_req_op_init(struct ceph_osd_request
*osd_req
, unsigned int which
,
451 struct ceph_osd_req_op
*op
;
453 BUG_ON(which
>= osd_req
->r_num_ops
);
454 BUG_ON(!osd_req_opcode_valid(opcode
));
456 op
= &osd_req
->r_ops
[which
];
457 memset(op
, 0, sizeof (*op
));
463 void osd_req_op_init(struct ceph_osd_request
*osd_req
,
464 unsigned int which
, u16 opcode
)
466 (void)_osd_req_op_init(osd_req
, which
, opcode
);
468 EXPORT_SYMBOL(osd_req_op_init
);
470 void osd_req_op_extent_init(struct ceph_osd_request
*osd_req
,
471 unsigned int which
, u16 opcode
,
472 u64 offset
, u64 length
,
473 u64 truncate_size
, u32 truncate_seq
)
475 struct ceph_osd_req_op
*op
= _osd_req_op_init(osd_req
, which
, opcode
);
476 size_t payload_len
= 0;
478 BUG_ON(opcode
!= CEPH_OSD_OP_READ
&& opcode
!= CEPH_OSD_OP_WRITE
&&
479 opcode
!= CEPH_OSD_OP_DELETE
&& opcode
!= CEPH_OSD_OP_ZERO
&&
480 opcode
!= CEPH_OSD_OP_TRUNCATE
);
482 op
->extent
.offset
= offset
;
483 op
->extent
.length
= length
;
484 op
->extent
.truncate_size
= truncate_size
;
485 op
->extent
.truncate_seq
= truncate_seq
;
486 if (opcode
== CEPH_OSD_OP_WRITE
)
487 payload_len
+= length
;
489 op
->payload_len
= payload_len
;
491 EXPORT_SYMBOL(osd_req_op_extent_init
);
493 void osd_req_op_extent_update(struct ceph_osd_request
*osd_req
,
494 unsigned int which
, u64 length
)
496 struct ceph_osd_req_op
*op
;
499 BUG_ON(which
>= osd_req
->r_num_ops
);
500 op
= &osd_req
->r_ops
[which
];
501 previous
= op
->extent
.length
;
503 if (length
== previous
)
504 return; /* Nothing to do */
505 BUG_ON(length
> previous
);
507 op
->extent
.length
= length
;
508 op
->payload_len
-= previous
- length
;
510 EXPORT_SYMBOL(osd_req_op_extent_update
);
512 void osd_req_op_cls_init(struct ceph_osd_request
*osd_req
, unsigned int which
,
513 u16 opcode
, const char *class, const char *method
)
515 struct ceph_osd_req_op
*op
= _osd_req_op_init(osd_req
, which
, opcode
);
516 struct ceph_pagelist
*pagelist
;
517 size_t payload_len
= 0;
520 BUG_ON(opcode
!= CEPH_OSD_OP_CALL
);
522 pagelist
= kmalloc(sizeof (*pagelist
), GFP_NOFS
);
524 ceph_pagelist_init(pagelist
);
526 op
->cls
.class_name
= class;
527 size
= strlen(class);
528 BUG_ON(size
> (size_t) U8_MAX
);
529 op
->cls
.class_len
= size
;
530 ceph_pagelist_append(pagelist
, class, size
);
533 op
->cls
.method_name
= method
;
534 size
= strlen(method
);
535 BUG_ON(size
> (size_t) U8_MAX
);
536 op
->cls
.method_len
= size
;
537 ceph_pagelist_append(pagelist
, method
, size
);
540 osd_req_op_cls_request_info_pagelist(osd_req
, which
, pagelist
);
542 op
->cls
.argc
= 0; /* currently unused */
544 op
->payload_len
= payload_len
;
546 EXPORT_SYMBOL(osd_req_op_cls_init
);
548 void osd_req_op_watch_init(struct ceph_osd_request
*osd_req
,
549 unsigned int which
, u16 opcode
,
550 u64 cookie
, u64 version
, int flag
)
552 struct ceph_osd_req_op
*op
= _osd_req_op_init(osd_req
, which
, opcode
);
554 BUG_ON(opcode
!= CEPH_OSD_OP_NOTIFY_ACK
&& opcode
!= CEPH_OSD_OP_WATCH
);
556 op
->watch
.cookie
= cookie
;
557 op
->watch
.ver
= version
;
558 if (opcode
== CEPH_OSD_OP_WATCH
&& flag
)
559 op
->watch
.flag
= (u8
)1;
561 EXPORT_SYMBOL(osd_req_op_watch_init
);
563 void osd_req_op_alloc_hint_init(struct ceph_osd_request
*osd_req
,
565 u64 expected_object_size
,
566 u64 expected_write_size
)
568 struct ceph_osd_req_op
*op
= _osd_req_op_init(osd_req
, which
,
569 CEPH_OSD_OP_SETALLOCHINT
);
571 op
->alloc_hint
.expected_object_size
= expected_object_size
;
572 op
->alloc_hint
.expected_write_size
= expected_write_size
;
575 * CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed
576 * not worth a feature bit. Set FAILOK per-op flag to make
577 * sure older osds don't trip over an unsupported opcode.
579 op
->flags
|= CEPH_OSD_OP_FLAG_FAILOK
;
581 EXPORT_SYMBOL(osd_req_op_alloc_hint_init
);
583 static void ceph_osdc_msg_data_add(struct ceph_msg
*msg
,
584 struct ceph_osd_data
*osd_data
)
586 u64 length
= ceph_osd_data_length(osd_data
);
588 if (osd_data
->type
== CEPH_OSD_DATA_TYPE_PAGES
) {
589 BUG_ON(length
> (u64
) SIZE_MAX
);
591 ceph_msg_data_add_pages(msg
, osd_data
->pages
,
592 length
, osd_data
->alignment
);
593 } else if (osd_data
->type
== CEPH_OSD_DATA_TYPE_PAGELIST
) {
595 ceph_msg_data_add_pagelist(msg
, osd_data
->pagelist
);
597 } else if (osd_data
->type
== CEPH_OSD_DATA_TYPE_BIO
) {
598 ceph_msg_data_add_bio(msg
, osd_data
->bio
, length
);
601 BUG_ON(osd_data
->type
!= CEPH_OSD_DATA_TYPE_NONE
);
605 static u64
osd_req_encode_op(struct ceph_osd_request
*req
,
606 struct ceph_osd_op
*dst
, unsigned int which
)
608 struct ceph_osd_req_op
*src
;
609 struct ceph_osd_data
*osd_data
;
610 u64 request_data_len
= 0;
613 BUG_ON(which
>= req
->r_num_ops
);
614 src
= &req
->r_ops
[which
];
615 if (WARN_ON(!osd_req_opcode_valid(src
->op
))) {
616 pr_err("unrecognized osd opcode %d\n", src
->op
);
622 case CEPH_OSD_OP_STAT
:
623 osd_data
= &src
->raw_data_in
;
624 ceph_osdc_msg_data_add(req
->r_reply
, osd_data
);
626 case CEPH_OSD_OP_READ
:
627 case CEPH_OSD_OP_WRITE
:
628 case CEPH_OSD_OP_ZERO
:
629 case CEPH_OSD_OP_DELETE
:
630 case CEPH_OSD_OP_TRUNCATE
:
631 if (src
->op
== CEPH_OSD_OP_WRITE
)
632 request_data_len
= src
->extent
.length
;
633 dst
->extent
.offset
= cpu_to_le64(src
->extent
.offset
);
634 dst
->extent
.length
= cpu_to_le64(src
->extent
.length
);
635 dst
->extent
.truncate_size
=
636 cpu_to_le64(src
->extent
.truncate_size
);
637 dst
->extent
.truncate_seq
=
638 cpu_to_le32(src
->extent
.truncate_seq
);
639 osd_data
= &src
->extent
.osd_data
;
640 if (src
->op
== CEPH_OSD_OP_WRITE
)
641 ceph_osdc_msg_data_add(req
->r_request
, osd_data
);
643 ceph_osdc_msg_data_add(req
->r_reply
, osd_data
);
645 case CEPH_OSD_OP_CALL
:
646 dst
->cls
.class_len
= src
->cls
.class_len
;
647 dst
->cls
.method_len
= src
->cls
.method_len
;
648 osd_data
= &src
->cls
.request_info
;
649 ceph_osdc_msg_data_add(req
->r_request
, osd_data
);
650 BUG_ON(osd_data
->type
!= CEPH_OSD_DATA_TYPE_PAGELIST
);
651 request_data_len
= osd_data
->pagelist
->length
;
653 osd_data
= &src
->cls
.request_data
;
654 data_length
= ceph_osd_data_length(osd_data
);
656 BUG_ON(osd_data
->type
== CEPH_OSD_DATA_TYPE_NONE
);
657 dst
->cls
.indata_len
= cpu_to_le32(data_length
);
658 ceph_osdc_msg_data_add(req
->r_request
, osd_data
);
659 src
->payload_len
+= data_length
;
660 request_data_len
+= data_length
;
662 osd_data
= &src
->cls
.response_data
;
663 ceph_osdc_msg_data_add(req
->r_reply
, osd_data
);
665 case CEPH_OSD_OP_STARTSYNC
:
667 case CEPH_OSD_OP_NOTIFY_ACK
:
668 case CEPH_OSD_OP_WATCH
:
669 dst
->watch
.cookie
= cpu_to_le64(src
->watch
.cookie
);
670 dst
->watch
.ver
= cpu_to_le64(src
->watch
.ver
);
671 dst
->watch
.flag
= src
->watch
.flag
;
673 case CEPH_OSD_OP_SETALLOCHINT
:
674 dst
->alloc_hint
.expected_object_size
=
675 cpu_to_le64(src
->alloc_hint
.expected_object_size
);
676 dst
->alloc_hint
.expected_write_size
=
677 cpu_to_le64(src
->alloc_hint
.expected_write_size
);
680 pr_err("unsupported osd opcode %s\n",
681 ceph_osd_op_name(src
->op
));
687 dst
->op
= cpu_to_le16(src
->op
);
688 dst
->flags
= cpu_to_le32(src
->flags
);
689 dst
->payload_len
= cpu_to_le32(src
->payload_len
);
691 return request_data_len
;
695 * build new request AND message, calculate layout, and adjust file
698 * if the file was recently truncated, we include information about its
699 * old and new size so that the object can be updated appropriately. (we
700 * avoid synchronously deleting truncated objects because it's slow.)
702 * if @do_sync, include a 'startsync' command so that the osd will flush
705 struct ceph_osd_request
*ceph_osdc_new_request(struct ceph_osd_client
*osdc
,
706 struct ceph_file_layout
*layout
,
707 struct ceph_vino vino
,
708 u64 off
, u64
*plen
, int num_ops
,
709 int opcode
, int flags
,
710 struct ceph_snap_context
*snapc
,
715 struct ceph_osd_request
*req
;
723 BUG_ON(opcode
!= CEPH_OSD_OP_READ
&& opcode
!= CEPH_OSD_OP_WRITE
&&
724 opcode
!= CEPH_OSD_OP_DELETE
&& opcode
!= CEPH_OSD_OP_ZERO
&&
725 opcode
!= CEPH_OSD_OP_TRUNCATE
);
727 req
= ceph_osdc_alloc_request(osdc
, snapc
, num_ops
, use_mempool
,
730 return ERR_PTR(-ENOMEM
);
732 req
->r_flags
= flags
;
734 /* calculate max write size */
735 r
= calc_layout(layout
, off
, plen
, &objnum
, &objoff
, &objlen
);
737 ceph_osdc_put_request(req
);
741 object_size
= le32_to_cpu(layout
->fl_object_size
);
742 object_base
= off
- objoff
;
743 if (!(truncate_seq
== 1 && truncate_size
== -1ULL)) {
744 if (truncate_size
<= object_base
) {
747 truncate_size
-= object_base
;
748 if (truncate_size
> object_size
)
749 truncate_size
= object_size
;
753 osd_req_op_extent_init(req
, 0, opcode
, objoff
, objlen
,
754 truncate_size
, truncate_seq
);
757 * A second op in the ops array means the caller wants to
758 * also issue a include a 'startsync' command so that the
759 * osd will flush data quickly.
762 osd_req_op_init(req
, 1, CEPH_OSD_OP_STARTSYNC
);
764 req
->r_base_oloc
.pool
= ceph_file_layout_pg_pool(*layout
);
766 snprintf(req
->r_base_oid
.name
, sizeof(req
->r_base_oid
.name
),
767 "%llx.%08llx", vino
.ino
, objnum
);
768 req
->r_base_oid
.name_len
= strlen(req
->r_base_oid
.name
);
772 EXPORT_SYMBOL(ceph_osdc_new_request
);
775 * We keep osd requests in an rbtree, sorted by ->r_tid.
777 static void __insert_request(struct ceph_osd_client
*osdc
,
778 struct ceph_osd_request
*new)
780 struct rb_node
**p
= &osdc
->requests
.rb_node
;
781 struct rb_node
*parent
= NULL
;
782 struct ceph_osd_request
*req
= NULL
;
786 req
= rb_entry(parent
, struct ceph_osd_request
, r_node
);
787 if (new->r_tid
< req
->r_tid
)
789 else if (new->r_tid
> req
->r_tid
)
795 rb_link_node(&new->r_node
, parent
, p
);
796 rb_insert_color(&new->r_node
, &osdc
->requests
);
799 static struct ceph_osd_request
*__lookup_request(struct ceph_osd_client
*osdc
,
802 struct ceph_osd_request
*req
;
803 struct rb_node
*n
= osdc
->requests
.rb_node
;
806 req
= rb_entry(n
, struct ceph_osd_request
, r_node
);
807 if (tid
< req
->r_tid
)
809 else if (tid
> req
->r_tid
)
817 static struct ceph_osd_request
*
818 __lookup_request_ge(struct ceph_osd_client
*osdc
,
821 struct ceph_osd_request
*req
;
822 struct rb_node
*n
= osdc
->requests
.rb_node
;
825 req
= rb_entry(n
, struct ceph_osd_request
, r_node
);
826 if (tid
< req
->r_tid
) {
830 } else if (tid
> req
->r_tid
) {
839 static void __kick_linger_request(struct ceph_osd_request
*req
)
841 struct ceph_osd_client
*osdc
= req
->r_osdc
;
842 struct ceph_osd
*osd
= req
->r_osd
;
845 * Linger requests need to be resent with a new tid to avoid
846 * the dup op detection logic on the OSDs. Achieve this with
847 * a re-register dance instead of open-coding.
849 ceph_osdc_get_request(req
);
850 if (!list_empty(&req
->r_linger_item
))
851 __unregister_linger_request(osdc
, req
);
853 __unregister_request(osdc
, req
);
854 __register_request(osdc
, req
);
855 ceph_osdc_put_request(req
);
858 * Unless request has been registered as both normal and
859 * lingering, __unregister{,_linger}_request clears r_osd.
860 * However, here we need to preserve r_osd to make sure we
861 * requeue on the same OSD.
863 WARN_ON(req
->r_osd
|| !osd
);
866 dout("%s requeueing %p tid %llu\n", __func__
, req
, req
->r_tid
);
867 __enqueue_request(req
);
871 * Resubmit requests pending on the given osd.
873 static void __kick_osd_requests(struct ceph_osd_client
*osdc
,
874 struct ceph_osd
*osd
)
876 struct ceph_osd_request
*req
, *nreq
;
878 LIST_HEAD(resend_linger
);
881 dout("%s osd%d\n", __func__
, osd
->o_osd
);
882 err
= __reset_osd(osdc
, osd
);
887 * Build up a list of requests to resend by traversing the
888 * osd's list of requests. Requests for a given object are
889 * sent in tid order, and that is also the order they're
890 * kept on this list. Therefore all requests that are in
891 * flight will be found first, followed by all requests that
892 * have not yet been sent. And to resend requests while
893 * preserving this order we will want to put any sent
894 * requests back on the front of the osd client's unsent
897 * So we build a separate ordered list of already-sent
898 * requests for the affected osd and splice it onto the
899 * front of the osd client's unsent list. Once we've seen a
900 * request that has not yet been sent we're done. Those
901 * requests are already sitting right where they belong.
903 list_for_each_entry(req
, &osd
->o_requests
, r_osd_item
) {
907 if (!req
->r_linger
) {
908 dout("%s requeueing %p tid %llu\n", __func__
, req
,
910 list_move_tail(&req
->r_req_lru_item
, &resend
);
911 req
->r_flags
|= CEPH_OSD_FLAG_RETRY
;
913 list_move_tail(&req
->r_req_lru_item
, &resend_linger
);
916 list_splice(&resend
, &osdc
->req_unsent
);
919 * Both registered and not yet registered linger requests are
920 * enqueued with a new tid on the same OSD. We add/move them
921 * to req_unsent/o_requests at the end to keep things in tid
924 list_for_each_entry_safe(req
, nreq
, &osd
->o_linger_requests
,
926 WARN_ON(!list_empty(&req
->r_req_lru_item
));
927 __kick_linger_request(req
);
930 list_for_each_entry_safe(req
, nreq
, &resend_linger
, r_req_lru_item
)
931 __kick_linger_request(req
);
935 * If the osd connection drops, we need to resubmit all requests.
937 static void osd_reset(struct ceph_connection
*con
)
939 struct ceph_osd
*osd
= con
->private;
940 struct ceph_osd_client
*osdc
;
944 dout("osd_reset osd%d\n", osd
->o_osd
);
946 down_read(&osdc
->map_sem
);
947 mutex_lock(&osdc
->request_mutex
);
948 __kick_osd_requests(osdc
, osd
);
950 mutex_unlock(&osdc
->request_mutex
);
951 up_read(&osdc
->map_sem
);
955 * Track open sessions with osds.
957 static struct ceph_osd
*create_osd(struct ceph_osd_client
*osdc
, int onum
)
959 struct ceph_osd
*osd
;
961 osd
= kzalloc(sizeof(*osd
), GFP_NOFS
);
965 atomic_set(&osd
->o_ref
, 1);
968 RB_CLEAR_NODE(&osd
->o_node
);
969 INIT_LIST_HEAD(&osd
->o_requests
);
970 INIT_LIST_HEAD(&osd
->o_linger_requests
);
971 INIT_LIST_HEAD(&osd
->o_osd_lru
);
972 osd
->o_incarnation
= 1;
974 ceph_con_init(&osd
->o_con
, osd
, &osd_con_ops
, &osdc
->client
->msgr
);
976 INIT_LIST_HEAD(&osd
->o_keepalive_item
);
980 static struct ceph_osd
*get_osd(struct ceph_osd
*osd
)
982 if (atomic_inc_not_zero(&osd
->o_ref
)) {
983 dout("get_osd %p %d -> %d\n", osd
, atomic_read(&osd
->o_ref
)-1,
984 atomic_read(&osd
->o_ref
));
987 dout("get_osd %p FAIL\n", osd
);
992 static void put_osd(struct ceph_osd
*osd
)
994 dout("put_osd %p %d -> %d\n", osd
, atomic_read(&osd
->o_ref
),
995 atomic_read(&osd
->o_ref
) - 1);
996 if (atomic_dec_and_test(&osd
->o_ref
) && osd
->o_auth
.authorizer
) {
997 struct ceph_auth_client
*ac
= osd
->o_osdc
->client
->monc
.auth
;
999 ceph_auth_destroy_authorizer(ac
, osd
->o_auth
.authorizer
);
1005 * remove an osd from our map
1007 static void __remove_osd(struct ceph_osd_client
*osdc
, struct ceph_osd
*osd
)
1009 dout("__remove_osd %p\n", osd
);
1010 WARN_ON(!list_empty(&osd
->o_requests
));
1011 WARN_ON(!list_empty(&osd
->o_linger_requests
));
1013 rb_erase(&osd
->o_node
, &osdc
->osds
);
1014 list_del_init(&osd
->o_osd_lru
);
1015 ceph_con_close(&osd
->o_con
);
1019 static void remove_all_osds(struct ceph_osd_client
*osdc
)
1021 dout("%s %p\n", __func__
, osdc
);
1022 mutex_lock(&osdc
->request_mutex
);
1023 while (!RB_EMPTY_ROOT(&osdc
->osds
)) {
1024 struct ceph_osd
*osd
= rb_entry(rb_first(&osdc
->osds
),
1025 struct ceph_osd
, o_node
);
1026 __remove_osd(osdc
, osd
);
1028 mutex_unlock(&osdc
->request_mutex
);
1031 static void __move_osd_to_lru(struct ceph_osd_client
*osdc
,
1032 struct ceph_osd
*osd
)
1034 dout("%s %p\n", __func__
, osd
);
1035 BUG_ON(!list_empty(&osd
->o_osd_lru
));
1037 list_add_tail(&osd
->o_osd_lru
, &osdc
->osd_lru
);
1038 osd
->lru_ttl
= jiffies
+ osdc
->client
->options
->osd_idle_ttl
* HZ
;
1041 static void maybe_move_osd_to_lru(struct ceph_osd_client
*osdc
,
1042 struct ceph_osd
*osd
)
1044 dout("%s %p\n", __func__
, osd
);
1046 if (list_empty(&osd
->o_requests
) &&
1047 list_empty(&osd
->o_linger_requests
))
1048 __move_osd_to_lru(osdc
, osd
);
1051 static void __remove_osd_from_lru(struct ceph_osd
*osd
)
1053 dout("__remove_osd_from_lru %p\n", osd
);
1054 if (!list_empty(&osd
->o_osd_lru
))
1055 list_del_init(&osd
->o_osd_lru
);
1058 static void remove_old_osds(struct ceph_osd_client
*osdc
)
1060 struct ceph_osd
*osd
, *nosd
;
1062 dout("__remove_old_osds %p\n", osdc
);
1063 mutex_lock(&osdc
->request_mutex
);
1064 list_for_each_entry_safe(osd
, nosd
, &osdc
->osd_lru
, o_osd_lru
) {
1065 if (time_before(jiffies
, osd
->lru_ttl
))
1067 __remove_osd(osdc
, osd
);
1069 mutex_unlock(&osdc
->request_mutex
);
1075 static int __reset_osd(struct ceph_osd_client
*osdc
, struct ceph_osd
*osd
)
1077 struct ceph_entity_addr
*peer_addr
;
1079 dout("__reset_osd %p osd%d\n", osd
, osd
->o_osd
);
1080 if (list_empty(&osd
->o_requests
) &&
1081 list_empty(&osd
->o_linger_requests
)) {
1082 __remove_osd(osdc
, osd
);
1087 peer_addr
= &osdc
->osdmap
->osd_addr
[osd
->o_osd
];
1088 if (!memcmp(peer_addr
, &osd
->o_con
.peer_addr
, sizeof (*peer_addr
)) &&
1089 !ceph_con_opened(&osd
->o_con
)) {
1090 struct ceph_osd_request
*req
;
1092 dout("osd addr hasn't changed and connection never opened, "
1093 "letting msgr retry\n");
1094 /* touch each r_stamp for handle_timeout()'s benfit */
1095 list_for_each_entry(req
, &osd
->o_requests
, r_osd_item
)
1096 req
->r_stamp
= jiffies
;
1101 ceph_con_close(&osd
->o_con
);
1102 ceph_con_open(&osd
->o_con
, CEPH_ENTITY_TYPE_OSD
, osd
->o_osd
, peer_addr
);
1103 osd
->o_incarnation
++;
1108 static void __insert_osd(struct ceph_osd_client
*osdc
, struct ceph_osd
*new)
1110 struct rb_node
**p
= &osdc
->osds
.rb_node
;
1111 struct rb_node
*parent
= NULL
;
1112 struct ceph_osd
*osd
= NULL
;
1114 dout("__insert_osd %p osd%d\n", new, new->o_osd
);
1117 osd
= rb_entry(parent
, struct ceph_osd
, o_node
);
1118 if (new->o_osd
< osd
->o_osd
)
1120 else if (new->o_osd
> osd
->o_osd
)
1121 p
= &(*p
)->rb_right
;
1126 rb_link_node(&new->o_node
, parent
, p
);
1127 rb_insert_color(&new->o_node
, &osdc
->osds
);
1130 static struct ceph_osd
*__lookup_osd(struct ceph_osd_client
*osdc
, int o
)
1132 struct ceph_osd
*osd
;
1133 struct rb_node
*n
= osdc
->osds
.rb_node
;
1136 osd
= rb_entry(n
, struct ceph_osd
, o_node
);
1139 else if (o
> osd
->o_osd
)
1147 static void __schedule_osd_timeout(struct ceph_osd_client
*osdc
)
1149 schedule_delayed_work(&osdc
->timeout_work
,
1150 osdc
->client
->options
->osd_keepalive_timeout
* HZ
);
1153 static void __cancel_osd_timeout(struct ceph_osd_client
*osdc
)
1155 cancel_delayed_work(&osdc
->timeout_work
);
1159 * Register request, assign tid. If this is the first request, set up
1160 * the timeout event.
1162 static void __register_request(struct ceph_osd_client
*osdc
,
1163 struct ceph_osd_request
*req
)
1165 req
->r_tid
= ++osdc
->last_tid
;
1166 req
->r_request
->hdr
.tid
= cpu_to_le64(req
->r_tid
);
1167 dout("__register_request %p tid %lld\n", req
, req
->r_tid
);
1168 __insert_request(osdc
, req
);
1169 ceph_osdc_get_request(req
);
1170 osdc
->num_requests
++;
1171 if (osdc
->num_requests
== 1) {
1172 dout(" first request, scheduling timeout\n");
1173 __schedule_osd_timeout(osdc
);
1178 * called under osdc->request_mutex
1180 static void __unregister_request(struct ceph_osd_client
*osdc
,
1181 struct ceph_osd_request
*req
)
1183 if (RB_EMPTY_NODE(&req
->r_node
)) {
1184 dout("__unregister_request %p tid %lld not registered\n",
1189 dout("__unregister_request %p tid %lld\n", req
, req
->r_tid
);
1190 rb_erase(&req
->r_node
, &osdc
->requests
);
1191 RB_CLEAR_NODE(&req
->r_node
);
1192 osdc
->num_requests
--;
1195 /* make sure the original request isn't in flight. */
1196 ceph_msg_revoke(req
->r_request
);
1198 list_del_init(&req
->r_osd_item
);
1199 maybe_move_osd_to_lru(osdc
, req
->r_osd
);
1200 if (list_empty(&req
->r_linger_osd_item
))
1204 list_del_init(&req
->r_req_lru_item
);
1205 ceph_osdc_put_request(req
);
1207 if (osdc
->num_requests
== 0) {
1208 dout(" no requests, canceling timeout\n");
1209 __cancel_osd_timeout(osdc
);
1214 * Cancel a previously queued request message
1216 static void __cancel_request(struct ceph_osd_request
*req
)
1218 if (req
->r_sent
&& req
->r_osd
) {
1219 ceph_msg_revoke(req
->r_request
);
1224 static void __register_linger_request(struct ceph_osd_client
*osdc
,
1225 struct ceph_osd_request
*req
)
1227 dout("%s %p tid %llu\n", __func__
, req
, req
->r_tid
);
1228 WARN_ON(!req
->r_linger
);
1230 ceph_osdc_get_request(req
);
1231 list_add_tail(&req
->r_linger_item
, &osdc
->req_linger
);
1233 list_add_tail(&req
->r_linger_osd_item
,
1234 &req
->r_osd
->o_linger_requests
);
1237 static void __unregister_linger_request(struct ceph_osd_client
*osdc
,
1238 struct ceph_osd_request
*req
)
1240 WARN_ON(!req
->r_linger
);
1242 if (list_empty(&req
->r_linger_item
)) {
1243 dout("%s %p tid %llu not registered\n", __func__
, req
,
1248 dout("%s %p tid %llu\n", __func__
, req
, req
->r_tid
);
1249 list_del_init(&req
->r_linger_item
);
1252 list_del_init(&req
->r_linger_osd_item
);
1253 maybe_move_osd_to_lru(osdc
, req
->r_osd
);
1254 if (list_empty(&req
->r_osd_item
))
1258 list_del_init(&req
->r_req_lru_item
); /* can be on notarget */
1259 ceph_osdc_put_request(req
);
1262 void ceph_osdc_set_request_linger(struct ceph_osd_client
*osdc
,
1263 struct ceph_osd_request
*req
)
1265 if (!req
->r_linger
) {
1266 dout("set_request_linger %p\n", req
);
1270 EXPORT_SYMBOL(ceph_osdc_set_request_linger
);
1273 * Returns whether a request should be blocked from being sent
1274 * based on the current osdmap and osd_client settings.
1276 * Caller should hold map_sem for read.
1278 static bool __req_should_be_paused(struct ceph_osd_client
*osdc
,
1279 struct ceph_osd_request
*req
)
1281 bool pauserd
= ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_PAUSERD
);
1282 bool pausewr
= ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_PAUSEWR
) ||
1283 ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_FULL
);
1284 return (req
->r_flags
& CEPH_OSD_FLAG_READ
&& pauserd
) ||
1285 (req
->r_flags
& CEPH_OSD_FLAG_WRITE
&& pausewr
);
1289 * Calculate mapping of a request to a PG. Takes tiering into account.
1291 static int __calc_request_pg(struct ceph_osdmap
*osdmap
,
1292 struct ceph_osd_request
*req
,
1293 struct ceph_pg
*pg_out
)
1295 bool need_check_tiering
;
1297 need_check_tiering
= false;
1298 if (req
->r_target_oloc
.pool
== -1) {
1299 req
->r_target_oloc
= req
->r_base_oloc
; /* struct */
1300 need_check_tiering
= true;
1302 if (req
->r_target_oid
.name_len
== 0) {
1303 ceph_oid_copy(&req
->r_target_oid
, &req
->r_base_oid
);
1304 need_check_tiering
= true;
1307 if (need_check_tiering
&&
1308 (req
->r_flags
& CEPH_OSD_FLAG_IGNORE_OVERLAY
) == 0) {
1309 struct ceph_pg_pool_info
*pi
;
1311 pi
= ceph_pg_pool_by_id(osdmap
, req
->r_target_oloc
.pool
);
1313 if ((req
->r_flags
& CEPH_OSD_FLAG_READ
) &&
1315 req
->r_target_oloc
.pool
= pi
->read_tier
;
1316 if ((req
->r_flags
& CEPH_OSD_FLAG_WRITE
) &&
1317 pi
->write_tier
>= 0)
1318 req
->r_target_oloc
.pool
= pi
->write_tier
;
1320 /* !pi is caught in ceph_oloc_oid_to_pg() */
1323 return ceph_oloc_oid_to_pg(osdmap
, &req
->r_target_oloc
,
1324 &req
->r_target_oid
, pg_out
);
1327 static void __enqueue_request(struct ceph_osd_request
*req
)
1329 struct ceph_osd_client
*osdc
= req
->r_osdc
;
1331 dout("%s %p tid %llu to osd%d\n", __func__
, req
, req
->r_tid
,
1332 req
->r_osd
? req
->r_osd
->o_osd
: -1);
1335 __remove_osd_from_lru(req
->r_osd
);
1336 list_add_tail(&req
->r_osd_item
, &req
->r_osd
->o_requests
);
1337 list_move_tail(&req
->r_req_lru_item
, &osdc
->req_unsent
);
1339 list_move_tail(&req
->r_req_lru_item
, &osdc
->req_notarget
);
1344 * Pick an osd (the first 'up' osd in the pg), allocate the osd struct
1345 * (as needed), and set the request r_osd appropriately. If there is
1346 * no up osd, set r_osd to NULL. Move the request to the appropriate list
1347 * (unsent, homeless) or leave on in-flight lru.
1349 * Return 0 if unchanged, 1 if changed, or negative on error.
1351 * Caller should hold map_sem for read and request_mutex.
1353 static int __map_request(struct ceph_osd_client
*osdc
,
1354 struct ceph_osd_request
*req
, int force_resend
)
1356 struct ceph_pg pgid
;
1357 int acting
[CEPH_PG_MAX_SIZE
];
1362 dout("map_request %p tid %lld\n", req
, req
->r_tid
);
1364 err
= __calc_request_pg(osdc
->osdmap
, req
, &pgid
);
1366 list_move(&req
->r_req_lru_item
, &osdc
->req_notarget
);
1371 num
= ceph_calc_pg_acting(osdc
->osdmap
, pgid
, acting
, &o
);
1375 was_paused
= req
->r_paused
;
1376 req
->r_paused
= __req_should_be_paused(osdc
, req
);
1377 if (was_paused
&& !req
->r_paused
)
1380 if ((!force_resend
&&
1381 req
->r_osd
&& req
->r_osd
->o_osd
== o
&&
1382 req
->r_sent
>= req
->r_osd
->o_incarnation
&&
1383 req
->r_num_pg_osds
== num
&&
1384 memcmp(req
->r_pg_osds
, acting
, sizeof(acting
[0])*num
) == 0) ||
1385 (req
->r_osd
== NULL
&& o
== -1) ||
1387 return 0; /* no change */
1389 dout("map_request tid %llu pgid %lld.%x osd%d (was osd%d)\n",
1390 req
->r_tid
, pgid
.pool
, pgid
.seed
, o
,
1391 req
->r_osd
? req
->r_osd
->o_osd
: -1);
1393 /* record full pg acting set */
1394 memcpy(req
->r_pg_osds
, acting
, sizeof(acting
[0]) * num
);
1395 req
->r_num_pg_osds
= num
;
1398 __cancel_request(req
);
1399 list_del_init(&req
->r_osd_item
);
1400 list_del_init(&req
->r_linger_osd_item
);
1404 req
->r_osd
= __lookup_osd(osdc
, o
);
1405 if (!req
->r_osd
&& o
>= 0) {
1407 req
->r_osd
= create_osd(osdc
, o
);
1409 list_move(&req
->r_req_lru_item
, &osdc
->req_notarget
);
1413 dout("map_request osd %p is osd%d\n", req
->r_osd
, o
);
1414 __insert_osd(osdc
, req
->r_osd
);
1416 ceph_con_open(&req
->r_osd
->o_con
,
1417 CEPH_ENTITY_TYPE_OSD
, o
,
1418 &osdc
->osdmap
->osd_addr
[o
]);
1421 __enqueue_request(req
);
1422 err
= 1; /* osd or pg changed */
1429 * caller should hold map_sem (for read) and request_mutex
1431 static void __send_request(struct ceph_osd_client
*osdc
,
1432 struct ceph_osd_request
*req
)
1436 dout("send_request %p tid %llu to osd%d flags %d pg %lld.%x\n",
1437 req
, req
->r_tid
, req
->r_osd
->o_osd
, req
->r_flags
,
1438 (unsigned long long)req
->r_pgid
.pool
, req
->r_pgid
.seed
);
1440 /* fill in message content that changes each time we send it */
1441 put_unaligned_le32(osdc
->osdmap
->epoch
, req
->r_request_osdmap_epoch
);
1442 put_unaligned_le32(req
->r_flags
, req
->r_request_flags
);
1443 put_unaligned_le64(req
->r_target_oloc
.pool
, req
->r_request_pool
);
1444 p
= req
->r_request_pgid
;
1445 ceph_encode_64(&p
, req
->r_pgid
.pool
);
1446 ceph_encode_32(&p
, req
->r_pgid
.seed
);
1447 put_unaligned_le64(1, req
->r_request_attempts
); /* FIXME */
1448 memcpy(req
->r_request_reassert_version
, &req
->r_reassert_version
,
1449 sizeof(req
->r_reassert_version
));
1451 req
->r_stamp
= jiffies
;
1452 list_move_tail(&req
->r_req_lru_item
, &osdc
->req_lru
);
1454 ceph_msg_get(req
->r_request
); /* send consumes a ref */
1456 req
->r_sent
= req
->r_osd
->o_incarnation
;
1458 ceph_con_send(&req
->r_osd
->o_con
, req
->r_request
);
1462 * Send any requests in the queue (req_unsent).
1464 static void __send_queued(struct ceph_osd_client
*osdc
)
1466 struct ceph_osd_request
*req
, *tmp
;
1468 dout("__send_queued\n");
1469 list_for_each_entry_safe(req
, tmp
, &osdc
->req_unsent
, r_req_lru_item
)
1470 __send_request(osdc
, req
);
1474 * Caller should hold map_sem for read and request_mutex.
1476 static int __ceph_osdc_start_request(struct ceph_osd_client
*osdc
,
1477 struct ceph_osd_request
*req
,
1482 __register_request(osdc
, req
);
1484 req
->r_got_reply
= 0;
1485 rc
= __map_request(osdc
, req
, 0);
1488 dout("osdc_start_request failed map, "
1489 " will retry %lld\n", req
->r_tid
);
1492 __unregister_request(osdc
, req
);
1497 if (req
->r_osd
== NULL
) {
1498 dout("send_request %p no up osds in pg\n", req
);
1499 ceph_monc_request_next_osdmap(&osdc
->client
->monc
);
1501 __send_queued(osdc
);
1508 * Timeout callback, called every N seconds when 1 or more osd
1509 * requests has been active for more than N seconds. When this
1510 * happens, we ping all OSDs with requests who have timed out to
1511 * ensure any communications channel reset is detected. Reset the
1512 * request timeouts another N seconds in the future as we go.
1513 * Reschedule the timeout event another N seconds in future (unless
1514 * there are no open requests).
1516 static void handle_timeout(struct work_struct
*work
)
1518 struct ceph_osd_client
*osdc
=
1519 container_of(work
, struct ceph_osd_client
, timeout_work
.work
);
1520 struct ceph_osd_request
*req
;
1521 struct ceph_osd
*osd
;
1522 unsigned long keepalive
=
1523 osdc
->client
->options
->osd_keepalive_timeout
* HZ
;
1524 struct list_head slow_osds
;
1526 down_read(&osdc
->map_sem
);
1528 ceph_monc_request_next_osdmap(&osdc
->client
->monc
);
1530 mutex_lock(&osdc
->request_mutex
);
1533 * ping osds that are a bit slow. this ensures that if there
1534 * is a break in the TCP connection we will notice, and reopen
1535 * a connection with that osd (from the fault callback).
1537 INIT_LIST_HEAD(&slow_osds
);
1538 list_for_each_entry(req
, &osdc
->req_lru
, r_req_lru_item
) {
1539 if (time_before(jiffies
, req
->r_stamp
+ keepalive
))
1544 dout(" tid %llu is slow, will send keepalive on osd%d\n",
1545 req
->r_tid
, osd
->o_osd
);
1546 list_move_tail(&osd
->o_keepalive_item
, &slow_osds
);
1548 while (!list_empty(&slow_osds
)) {
1549 osd
= list_entry(slow_osds
.next
, struct ceph_osd
,
1551 list_del_init(&osd
->o_keepalive_item
);
1552 ceph_con_keepalive(&osd
->o_con
);
1555 __schedule_osd_timeout(osdc
);
1556 __send_queued(osdc
);
1557 mutex_unlock(&osdc
->request_mutex
);
1558 up_read(&osdc
->map_sem
);
1561 static void handle_osds_timeout(struct work_struct
*work
)
1563 struct ceph_osd_client
*osdc
=
1564 container_of(work
, struct ceph_osd_client
,
1565 osds_timeout_work
.work
);
1566 unsigned long delay
=
1567 osdc
->client
->options
->osd_idle_ttl
* HZ
>> 2;
1569 dout("osds timeout\n");
1570 down_read(&osdc
->map_sem
);
1571 remove_old_osds(osdc
);
1572 up_read(&osdc
->map_sem
);
1574 schedule_delayed_work(&osdc
->osds_timeout_work
,
1575 round_jiffies_relative(delay
));
1578 static int ceph_oloc_decode(void **p
, void *end
,
1579 struct ceph_object_locator
*oloc
)
1581 u8 struct_v
, struct_cv
;
1586 ceph_decode_need(p
, end
, 1 + 1 + 4, e_inval
);
1587 struct_v
= ceph_decode_8(p
);
1588 struct_cv
= ceph_decode_8(p
);
1590 pr_warn("got v %d < 3 cv %d of ceph_object_locator\n",
1591 struct_v
, struct_cv
);
1594 if (struct_cv
> 6) {
1595 pr_warn("got v %d cv %d > 6 of ceph_object_locator\n",
1596 struct_v
, struct_cv
);
1599 len
= ceph_decode_32(p
);
1600 ceph_decode_need(p
, end
, len
, e_inval
);
1601 struct_end
= *p
+ len
;
1603 oloc
->pool
= ceph_decode_64(p
);
1604 *p
+= 4; /* skip preferred */
1606 len
= ceph_decode_32(p
);
1608 pr_warn("ceph_object_locator::key is set\n");
1612 if (struct_v
>= 5) {
1613 len
= ceph_decode_32(p
);
1615 pr_warn("ceph_object_locator::nspace is set\n");
1620 if (struct_v
>= 6) {
1621 s64 hash
= ceph_decode_64(p
);
1623 pr_warn("ceph_object_locator::hash is set\n");
1638 static int ceph_redirect_decode(void **p
, void *end
,
1639 struct ceph_request_redirect
*redir
)
1641 u8 struct_v
, struct_cv
;
1646 ceph_decode_need(p
, end
, 1 + 1 + 4, e_inval
);
1647 struct_v
= ceph_decode_8(p
);
1648 struct_cv
= ceph_decode_8(p
);
1649 if (struct_cv
> 1) {
1650 pr_warn("got v %d cv %d > 1 of ceph_request_redirect\n",
1651 struct_v
, struct_cv
);
1654 len
= ceph_decode_32(p
);
1655 ceph_decode_need(p
, end
, len
, e_inval
);
1656 struct_end
= *p
+ len
;
1658 ret
= ceph_oloc_decode(p
, end
, &redir
->oloc
);
1662 len
= ceph_decode_32(p
);
1664 pr_warn("ceph_request_redirect::object_name is set\n");
1668 len
= ceph_decode_32(p
);
1669 *p
+= len
; /* skip osd_instructions */
1681 static void complete_request(struct ceph_osd_request
*req
)
1683 complete_all(&req
->r_safe_completion
); /* fsync waiter */
1687 * handle osd op reply. either call the callback if it is specified,
1688 * or do the completion to wake up the waiting thread.
1690 static void handle_reply(struct ceph_osd_client
*osdc
, struct ceph_msg
*msg
,
1691 struct ceph_connection
*con
)
1694 struct ceph_osd_request
*req
;
1695 struct ceph_request_redirect redir
;
1698 unsigned int numops
;
1699 int payload_len
, flags
;
1705 u64 reassert_version
;
1707 int already_completed
;
1711 tid
= le64_to_cpu(msg
->hdr
.tid
);
1712 dout("handle_reply %p tid %llu\n", msg
, tid
);
1714 p
= msg
->front
.iov_base
;
1715 end
= p
+ msg
->front
.iov_len
;
1717 ceph_decode_need(&p
, end
, 4, bad
);
1718 object_len
= ceph_decode_32(&p
);
1719 ceph_decode_need(&p
, end
, object_len
, bad
);
1722 err
= ceph_decode_pgid(&p
, end
, &pg
);
1726 ceph_decode_need(&p
, end
, 8 + 4 + 4 + 8 + 4, bad
);
1727 flags
= ceph_decode_64(&p
);
1728 result
= ceph_decode_32(&p
);
1729 reassert_epoch
= ceph_decode_32(&p
);
1730 reassert_version
= ceph_decode_64(&p
);
1731 osdmap_epoch
= ceph_decode_32(&p
);
1734 down_read(&osdc
->map_sem
);
1735 mutex_lock(&osdc
->request_mutex
);
1736 req
= __lookup_request(osdc
, tid
);
1738 dout("handle_reply tid %llu dne\n", tid
);
1741 ceph_osdc_get_request(req
);
1743 dout("handle_reply %p tid %llu req %p result %d\n", msg
, tid
,
1746 ceph_decode_need(&p
, end
, 4, bad_put
);
1747 numops
= ceph_decode_32(&p
);
1748 if (numops
> CEPH_OSD_MAX_OP
)
1750 if (numops
!= req
->r_num_ops
)
1753 ceph_decode_need(&p
, end
, numops
* sizeof(struct ceph_osd_op
), bad_put
);
1754 for (i
= 0; i
< numops
; i
++) {
1755 struct ceph_osd_op
*op
= p
;
1758 len
= le32_to_cpu(op
->payload_len
);
1759 req
->r_reply_op_len
[i
] = len
;
1760 dout(" op %d has %d bytes\n", i
, len
);
1764 bytes
= le32_to_cpu(msg
->hdr
.data_len
);
1765 if (payload_len
!= bytes
) {
1766 pr_warn("sum of op payload lens %d != data_len %d\n",
1767 payload_len
, bytes
);
1771 ceph_decode_need(&p
, end
, 4 + numops
* 4, bad_put
);
1772 retry_attempt
= ceph_decode_32(&p
);
1773 for (i
= 0; i
< numops
; i
++)
1774 req
->r_reply_op_result
[i
] = ceph_decode_32(&p
);
1776 if (le16_to_cpu(msg
->hdr
.version
) >= 6) {
1777 p
+= 8 + 4; /* skip replay_version */
1778 p
+= 8; /* skip user_version */
1780 err
= ceph_redirect_decode(&p
, end
, &redir
);
1784 redir
.oloc
.pool
= -1;
1787 if (redir
.oloc
.pool
!= -1) {
1788 dout("redirect pool %lld\n", redir
.oloc
.pool
);
1790 __unregister_request(osdc
, req
);
1792 req
->r_target_oloc
= redir
.oloc
; /* struct */
1795 * Start redirect requests with nofail=true. If
1796 * mapping fails, request will end up on the notarget
1797 * list, waiting for the new osdmap (which can take
1798 * a while), even though the original request mapped
1799 * successfully. In the future we might want to follow
1800 * original request's nofail setting here.
1802 err
= __ceph_osdc_start_request(osdc
, req
, true);
1808 already_completed
= req
->r_got_reply
;
1809 if (!req
->r_got_reply
) {
1810 req
->r_result
= result
;
1811 dout("handle_reply result %d bytes %d\n", req
->r_result
,
1813 if (req
->r_result
== 0)
1814 req
->r_result
= bytes
;
1816 /* in case this is a write and we need to replay, */
1817 req
->r_reassert_version
.epoch
= cpu_to_le32(reassert_epoch
);
1818 req
->r_reassert_version
.version
= cpu_to_le64(reassert_version
);
1820 req
->r_got_reply
= 1;
1821 } else if ((flags
& CEPH_OSD_FLAG_ONDISK
) == 0) {
1822 dout("handle_reply tid %llu dup ack\n", tid
);
1826 dout("handle_reply tid %llu flags %d\n", tid
, flags
);
1828 if (req
->r_linger
&& (flags
& CEPH_OSD_FLAG_ONDISK
))
1829 __register_linger_request(osdc
, req
);
1831 /* either this is a read, or we got the safe response */
1833 (flags
& CEPH_OSD_FLAG_ONDISK
) ||
1834 ((flags
& CEPH_OSD_FLAG_WRITE
) == 0))
1835 __unregister_request(osdc
, req
);
1837 mutex_unlock(&osdc
->request_mutex
);
1838 up_read(&osdc
->map_sem
);
1840 if (!already_completed
) {
1841 if (req
->r_unsafe_callback
&&
1842 result
>= 0 && !(flags
& CEPH_OSD_FLAG_ONDISK
))
1843 req
->r_unsafe_callback(req
, true);
1844 if (req
->r_callback
)
1845 req
->r_callback(req
, msg
);
1847 complete_all(&req
->r_completion
);
1850 if (flags
& CEPH_OSD_FLAG_ONDISK
) {
1851 if (req
->r_unsafe_callback
&& already_completed
)
1852 req
->r_unsafe_callback(req
, false);
1853 complete_request(req
);
1857 dout("req=%p req->r_linger=%d\n", req
, req
->r_linger
);
1858 ceph_osdc_put_request(req
);
1861 mutex_unlock(&osdc
->request_mutex
);
1862 up_read(&osdc
->map_sem
);
1866 req
->r_result
= -EIO
;
1867 __unregister_request(osdc
, req
);
1868 if (req
->r_callback
)
1869 req
->r_callback(req
, msg
);
1871 complete_all(&req
->r_completion
);
1872 complete_request(req
);
1873 ceph_osdc_put_request(req
);
1875 mutex_unlock(&osdc
->request_mutex
);
1876 up_read(&osdc
->map_sem
);
1878 pr_err("corrupt osd_op_reply got %d %d\n",
1879 (int)msg
->front
.iov_len
, le32_to_cpu(msg
->hdr
.front_len
));
1883 static void reset_changed_osds(struct ceph_osd_client
*osdc
)
1885 struct rb_node
*p
, *n
;
1887 for (p
= rb_first(&osdc
->osds
); p
; p
= n
) {
1888 struct ceph_osd
*osd
= rb_entry(p
, struct ceph_osd
, o_node
);
1891 if (!ceph_osd_is_up(osdc
->osdmap
, osd
->o_osd
) ||
1892 memcmp(&osd
->o_con
.peer_addr
,
1893 ceph_osd_addr(osdc
->osdmap
,
1895 sizeof(struct ceph_entity_addr
)) != 0)
1896 __reset_osd(osdc
, osd
);
1901 * Requeue requests whose mapping to an OSD has changed. If requests map to
1902 * no osd, request a new map.
1904 * Caller should hold map_sem for read.
1906 static void kick_requests(struct ceph_osd_client
*osdc
, bool force_resend
,
1907 bool force_resend_writes
)
1909 struct ceph_osd_request
*req
, *nreq
;
1913 bool force_resend_req
;
1915 dout("kick_requests %s %s\n", force_resend
? " (force resend)" : "",
1916 force_resend_writes
? " (force resend writes)" : "");
1917 mutex_lock(&osdc
->request_mutex
);
1918 for (p
= rb_first(&osdc
->requests
); p
; ) {
1919 req
= rb_entry(p
, struct ceph_osd_request
, r_node
);
1923 * For linger requests that have not yet been
1924 * registered, move them to the linger list; they'll
1925 * be sent to the osd in the loop below. Unregister
1926 * the request before re-registering it as a linger
1927 * request to ensure the __map_request() below
1928 * will decide it needs to be sent.
1930 if (req
->r_linger
&& list_empty(&req
->r_linger_item
)) {
1931 dout("%p tid %llu restart on osd%d\n",
1933 req
->r_osd
? req
->r_osd
->o_osd
: -1);
1934 ceph_osdc_get_request(req
);
1935 __unregister_request(osdc
, req
);
1936 __register_linger_request(osdc
, req
);
1937 ceph_osdc_put_request(req
);
1941 force_resend_req
= force_resend
||
1942 (force_resend_writes
&&
1943 req
->r_flags
& CEPH_OSD_FLAG_WRITE
);
1944 err
= __map_request(osdc
, req
, force_resend_req
);
1946 continue; /* error */
1947 if (req
->r_osd
== NULL
) {
1948 dout("%p tid %llu maps to no osd\n", req
, req
->r_tid
);
1949 needmap
++; /* request a newer map */
1950 } else if (err
> 0) {
1951 if (!req
->r_linger
) {
1952 dout("%p tid %llu requeued on osd%d\n", req
,
1954 req
->r_osd
? req
->r_osd
->o_osd
: -1);
1955 req
->r_flags
|= CEPH_OSD_FLAG_RETRY
;
1960 list_for_each_entry_safe(req
, nreq
, &osdc
->req_linger
,
1962 dout("linger req=%p req->r_osd=%p\n", req
, req
->r_osd
);
1964 err
= __map_request(osdc
, req
,
1965 force_resend
|| force_resend_writes
);
1966 dout("__map_request returned %d\n", err
);
1968 continue; /* no change and no osd was specified */
1970 continue; /* hrm! */
1971 if (req
->r_osd
== NULL
) {
1972 dout("tid %llu maps to no valid osd\n", req
->r_tid
);
1973 needmap
++; /* request a newer map */
1977 dout("kicking lingering %p tid %llu osd%d\n", req
, req
->r_tid
,
1978 req
->r_osd
? req
->r_osd
->o_osd
: -1);
1979 __register_request(osdc
, req
);
1980 __unregister_linger_request(osdc
, req
);
1982 reset_changed_osds(osdc
);
1983 mutex_unlock(&osdc
->request_mutex
);
1986 dout("%d requests for down osds, need new map\n", needmap
);
1987 ceph_monc_request_next_osdmap(&osdc
->client
->monc
);
1993 * Process updated osd map.
1995 * The message contains any number of incremental and full maps, normally
1996 * indicating some sort of topology change in the cluster. Kick requests
1997 * off to different OSDs as needed.
1999 void ceph_osdc_handle_map(struct ceph_osd_client
*osdc
, struct ceph_msg
*msg
)
2001 void *p
, *end
, *next
;
2002 u32 nr_maps
, maplen
;
2004 struct ceph_osdmap
*newmap
= NULL
, *oldmap
;
2006 struct ceph_fsid fsid
;
2009 dout("handle_map have %u\n", osdc
->osdmap
? osdc
->osdmap
->epoch
: 0);
2010 p
= msg
->front
.iov_base
;
2011 end
= p
+ msg
->front
.iov_len
;
2014 ceph_decode_need(&p
, end
, sizeof(fsid
), bad
);
2015 ceph_decode_copy(&p
, &fsid
, sizeof(fsid
));
2016 if (ceph_check_fsid(osdc
->client
, &fsid
) < 0)
2019 down_write(&osdc
->map_sem
);
2021 was_full
= ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_FULL
);
2023 /* incremental maps */
2024 ceph_decode_32_safe(&p
, end
, nr_maps
, bad
);
2025 dout(" %d inc maps\n", nr_maps
);
2026 while (nr_maps
> 0) {
2027 ceph_decode_need(&p
, end
, 2*sizeof(u32
), bad
);
2028 epoch
= ceph_decode_32(&p
);
2029 maplen
= ceph_decode_32(&p
);
2030 ceph_decode_need(&p
, end
, maplen
, bad
);
2032 if (osdc
->osdmap
&& osdc
->osdmap
->epoch
+1 == epoch
) {
2033 dout("applying incremental map %u len %d\n",
2035 newmap
= osdmap_apply_incremental(&p
, next
,
2037 &osdc
->client
->msgr
);
2038 if (IS_ERR(newmap
)) {
2039 err
= PTR_ERR(newmap
);
2043 if (newmap
!= osdc
->osdmap
) {
2044 ceph_osdmap_destroy(osdc
->osdmap
);
2045 osdc
->osdmap
= newmap
;
2047 was_full
= was_full
||
2048 ceph_osdmap_flag(osdc
->osdmap
,
2050 kick_requests(osdc
, 0, was_full
);
2052 dout("ignoring incremental map %u len %d\n",
2062 ceph_decode_32_safe(&p
, end
, nr_maps
, bad
);
2063 dout(" %d full maps\n", nr_maps
);
2065 ceph_decode_need(&p
, end
, 2*sizeof(u32
), bad
);
2066 epoch
= ceph_decode_32(&p
);
2067 maplen
= ceph_decode_32(&p
);
2068 ceph_decode_need(&p
, end
, maplen
, bad
);
2070 dout("skipping non-latest full map %u len %d\n",
2072 } else if (osdc
->osdmap
&& osdc
->osdmap
->epoch
>= epoch
) {
2073 dout("skipping full map %u len %d, "
2074 "older than our %u\n", epoch
, maplen
,
2075 osdc
->osdmap
->epoch
);
2077 int skipped_map
= 0;
2079 dout("taking full map %u len %d\n", epoch
, maplen
);
2080 newmap
= ceph_osdmap_decode(&p
, p
+maplen
);
2081 if (IS_ERR(newmap
)) {
2082 err
= PTR_ERR(newmap
);
2086 oldmap
= osdc
->osdmap
;
2087 osdc
->osdmap
= newmap
;
2089 if (oldmap
->epoch
+ 1 < newmap
->epoch
)
2091 ceph_osdmap_destroy(oldmap
);
2093 was_full
= was_full
||
2094 ceph_osdmap_flag(osdc
->osdmap
,
2096 kick_requests(osdc
, skipped_map
, was_full
);
2105 downgrade_write(&osdc
->map_sem
);
2106 ceph_monc_got_osdmap(&osdc
->client
->monc
, osdc
->osdmap
->epoch
);
2109 * subscribe to subsequent osdmap updates if full to ensure
2110 * we find out when we are no longer full and stop returning
2113 if (ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_FULL
) ||
2114 ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_PAUSERD
) ||
2115 ceph_osdmap_flag(osdc
->osdmap
, CEPH_OSDMAP_PAUSEWR
))
2116 ceph_monc_request_next_osdmap(&osdc
->client
->monc
);
2118 mutex_lock(&osdc
->request_mutex
);
2119 __send_queued(osdc
);
2120 mutex_unlock(&osdc
->request_mutex
);
2121 up_read(&osdc
->map_sem
);
2122 wake_up_all(&osdc
->client
->auth_wq
);
2126 pr_err("osdc handle_map corrupt msg\n");
2128 up_write(&osdc
->map_sem
);
2132 * watch/notify callback event infrastructure
2134 * These callbacks are used both for watch and notify operations.
2136 static void __release_event(struct kref
*kref
)
2138 struct ceph_osd_event
*event
=
2139 container_of(kref
, struct ceph_osd_event
, kref
);
2141 dout("__release_event %p\n", event
);
2145 static void get_event(struct ceph_osd_event
*event
)
2147 kref_get(&event
->kref
);
2150 void ceph_osdc_put_event(struct ceph_osd_event
*event
)
2152 kref_put(&event
->kref
, __release_event
);
2154 EXPORT_SYMBOL(ceph_osdc_put_event
);
2156 static void __insert_event(struct ceph_osd_client
*osdc
,
2157 struct ceph_osd_event
*new)
2159 struct rb_node
**p
= &osdc
->event_tree
.rb_node
;
2160 struct rb_node
*parent
= NULL
;
2161 struct ceph_osd_event
*event
= NULL
;
2165 event
= rb_entry(parent
, struct ceph_osd_event
, node
);
2166 if (new->cookie
< event
->cookie
)
2168 else if (new->cookie
> event
->cookie
)
2169 p
= &(*p
)->rb_right
;
2174 rb_link_node(&new->node
, parent
, p
);
2175 rb_insert_color(&new->node
, &osdc
->event_tree
);
2178 static struct ceph_osd_event
*__find_event(struct ceph_osd_client
*osdc
,
2181 struct rb_node
**p
= &osdc
->event_tree
.rb_node
;
2182 struct rb_node
*parent
= NULL
;
2183 struct ceph_osd_event
*event
= NULL
;
2187 event
= rb_entry(parent
, struct ceph_osd_event
, node
);
2188 if (cookie
< event
->cookie
)
2190 else if (cookie
> event
->cookie
)
2191 p
= &(*p
)->rb_right
;
2198 static void __remove_event(struct ceph_osd_event
*event
)
2200 struct ceph_osd_client
*osdc
= event
->osdc
;
2202 if (!RB_EMPTY_NODE(&event
->node
)) {
2203 dout("__remove_event removed %p\n", event
);
2204 rb_erase(&event
->node
, &osdc
->event_tree
);
2205 ceph_osdc_put_event(event
);
2207 dout("__remove_event didn't remove %p\n", event
);
2211 int ceph_osdc_create_event(struct ceph_osd_client
*osdc
,
2212 void (*event_cb
)(u64
, u64
, u8
, void *),
2213 void *data
, struct ceph_osd_event
**pevent
)
2215 struct ceph_osd_event
*event
;
2217 event
= kmalloc(sizeof(*event
), GFP_NOIO
);
2221 dout("create_event %p\n", event
);
2222 event
->cb
= event_cb
;
2223 event
->one_shot
= 0;
2226 INIT_LIST_HEAD(&event
->osd_node
);
2227 RB_CLEAR_NODE(&event
->node
);
2228 kref_init(&event
->kref
); /* one ref for us */
2229 kref_get(&event
->kref
); /* one ref for the caller */
2231 spin_lock(&osdc
->event_lock
);
2232 event
->cookie
= ++osdc
->event_count
;
2233 __insert_event(osdc
, event
);
2234 spin_unlock(&osdc
->event_lock
);
2239 EXPORT_SYMBOL(ceph_osdc_create_event
);
2241 void ceph_osdc_cancel_event(struct ceph_osd_event
*event
)
2243 struct ceph_osd_client
*osdc
= event
->osdc
;
2245 dout("cancel_event %p\n", event
);
2246 spin_lock(&osdc
->event_lock
);
2247 __remove_event(event
);
2248 spin_unlock(&osdc
->event_lock
);
2249 ceph_osdc_put_event(event
); /* caller's */
2251 EXPORT_SYMBOL(ceph_osdc_cancel_event
);
2254 static void do_event_work(struct work_struct
*work
)
2256 struct ceph_osd_event_work
*event_work
=
2257 container_of(work
, struct ceph_osd_event_work
, work
);
2258 struct ceph_osd_event
*event
= event_work
->event
;
2259 u64 ver
= event_work
->ver
;
2260 u64 notify_id
= event_work
->notify_id
;
2261 u8 opcode
= event_work
->opcode
;
2263 dout("do_event_work completing %p\n", event
);
2264 event
->cb(ver
, notify_id
, opcode
, event
->data
);
2265 dout("do_event_work completed %p\n", event
);
2266 ceph_osdc_put_event(event
);
2272 * Process osd watch notifications
2274 static void handle_watch_notify(struct ceph_osd_client
*osdc
,
2275 struct ceph_msg
*msg
)
2279 u64 cookie
, ver
, notify_id
;
2281 struct ceph_osd_event
*event
;
2282 struct ceph_osd_event_work
*event_work
;
2284 p
= msg
->front
.iov_base
;
2285 end
= p
+ msg
->front
.iov_len
;
2287 ceph_decode_8_safe(&p
, end
, proto_ver
, bad
);
2288 ceph_decode_8_safe(&p
, end
, opcode
, bad
);
2289 ceph_decode_64_safe(&p
, end
, cookie
, bad
);
2290 ceph_decode_64_safe(&p
, end
, ver
, bad
);
2291 ceph_decode_64_safe(&p
, end
, notify_id
, bad
);
2293 spin_lock(&osdc
->event_lock
);
2294 event
= __find_event(osdc
, cookie
);
2296 BUG_ON(event
->one_shot
);
2299 spin_unlock(&osdc
->event_lock
);
2300 dout("handle_watch_notify cookie %lld ver %lld event %p\n",
2301 cookie
, ver
, event
);
2303 event_work
= kmalloc(sizeof(*event_work
), GFP_NOIO
);
2305 pr_err("couldn't allocate event_work\n");
2306 ceph_osdc_put_event(event
);
2309 INIT_WORK(&event_work
->work
, do_event_work
);
2310 event_work
->event
= event
;
2311 event_work
->ver
= ver
;
2312 event_work
->notify_id
= notify_id
;
2313 event_work
->opcode
= opcode
;
2315 queue_work(osdc
->notify_wq
, &event_work
->work
);
2321 pr_err("osdc handle_watch_notify corrupt msg\n");
2325 * build new request AND message
2328 void ceph_osdc_build_request(struct ceph_osd_request
*req
, u64 off
,
2329 struct ceph_snap_context
*snapc
, u64 snap_id
,
2330 struct timespec
*mtime
)
2332 struct ceph_msg
*msg
= req
->r_request
;
2335 int flags
= req
->r_flags
;
2339 req
->r_snapid
= snap_id
;
2340 req
->r_snapc
= ceph_get_snap_context(snapc
);
2342 /* encode request */
2343 msg
->hdr
.version
= cpu_to_le16(4);
2345 p
= msg
->front
.iov_base
;
2346 ceph_encode_32(&p
, 1); /* client_inc is always 1 */
2347 req
->r_request_osdmap_epoch
= p
;
2349 req
->r_request_flags
= p
;
2351 if (req
->r_flags
& CEPH_OSD_FLAG_WRITE
)
2352 ceph_encode_timespec(p
, mtime
);
2353 p
+= sizeof(struct ceph_timespec
);
2354 req
->r_request_reassert_version
= p
;
2355 p
+= sizeof(struct ceph_eversion
); /* will get filled in */
2358 ceph_encode_8(&p
, 4);
2359 ceph_encode_8(&p
, 4);
2360 ceph_encode_32(&p
, 8 + 4 + 4);
2361 req
->r_request_pool
= p
;
2363 ceph_encode_32(&p
, -1); /* preferred */
2364 ceph_encode_32(&p
, 0); /* key len */
2366 ceph_encode_8(&p
, 1);
2367 req
->r_request_pgid
= p
;
2369 ceph_encode_32(&p
, -1); /* preferred */
2372 ceph_encode_32(&p
, req
->r_base_oid
.name_len
);
2373 memcpy(p
, req
->r_base_oid
.name
, req
->r_base_oid
.name_len
);
2374 dout("oid '%.*s' len %d\n", req
->r_base_oid
.name_len
,
2375 req
->r_base_oid
.name
, req
->r_base_oid
.name_len
);
2376 p
+= req
->r_base_oid
.name_len
;
2378 /* ops--can imply data */
2379 ceph_encode_16(&p
, (u16
)req
->r_num_ops
);
2381 for (i
= 0; i
< req
->r_num_ops
; i
++) {
2382 data_len
+= osd_req_encode_op(req
, p
, i
);
2383 p
+= sizeof(struct ceph_osd_op
);
2387 ceph_encode_64(&p
, req
->r_snapid
);
2388 ceph_encode_64(&p
, req
->r_snapc
? req
->r_snapc
->seq
: 0);
2389 ceph_encode_32(&p
, req
->r_snapc
? req
->r_snapc
->num_snaps
: 0);
2391 for (i
= 0; i
< snapc
->num_snaps
; i
++) {
2392 ceph_encode_64(&p
, req
->r_snapc
->snaps
[i
]);
2396 req
->r_request_attempts
= p
;
2400 if (flags
& CEPH_OSD_FLAG_WRITE
) {
2404 * The header "data_off" is a hint to the receiver
2405 * allowing it to align received data into its
2406 * buffers such that there's no need to re-copy
2407 * it before writing it to disk (direct I/O).
2409 data_off
= (u16
) (off
& 0xffff);
2410 req
->r_request
->hdr
.data_off
= cpu_to_le16(data_off
);
2412 req
->r_request
->hdr
.data_len
= cpu_to_le32(data_len
);
2414 BUG_ON(p
> msg
->front
.iov_base
+ msg
->front
.iov_len
);
2415 msg_size
= p
- msg
->front
.iov_base
;
2416 msg
->front
.iov_len
= msg_size
;
2417 msg
->hdr
.front_len
= cpu_to_le32(msg_size
);
2419 dout("build_request msg_size was %d\n", (int)msg_size
);
2421 EXPORT_SYMBOL(ceph_osdc_build_request
);
2424 * Register request, send initial attempt.
2426 int ceph_osdc_start_request(struct ceph_osd_client
*osdc
,
2427 struct ceph_osd_request
*req
,
2432 down_read(&osdc
->map_sem
);
2433 mutex_lock(&osdc
->request_mutex
);
2435 rc
= __ceph_osdc_start_request(osdc
, req
, nofail
);
2437 mutex_unlock(&osdc
->request_mutex
);
2438 up_read(&osdc
->map_sem
);
2442 EXPORT_SYMBOL(ceph_osdc_start_request
);
2445 * Unregister a registered request. The request is not completed (i.e.
2446 * no callbacks or wakeups) - higher layers are supposed to know what
2447 * they are canceling.
2449 void ceph_osdc_cancel_request(struct ceph_osd_request
*req
)
2451 struct ceph_osd_client
*osdc
= req
->r_osdc
;
2453 mutex_lock(&osdc
->request_mutex
);
2455 __unregister_linger_request(osdc
, req
);
2456 __unregister_request(osdc
, req
);
2457 mutex_unlock(&osdc
->request_mutex
);
2459 dout("%s %p tid %llu canceled\n", __func__
, req
, req
->r_tid
);
2461 EXPORT_SYMBOL(ceph_osdc_cancel_request
);
2464 * wait for a request to complete
2466 int ceph_osdc_wait_request(struct ceph_osd_client
*osdc
,
2467 struct ceph_osd_request
*req
)
2471 dout("%s %p tid %llu\n", __func__
, req
, req
->r_tid
);
2473 rc
= wait_for_completion_interruptible(&req
->r_completion
);
2475 dout("%s %p tid %llu interrupted\n", __func__
, req
, req
->r_tid
);
2476 ceph_osdc_cancel_request(req
);
2477 complete_request(req
);
2481 dout("%s %p tid %llu result %d\n", __func__
, req
, req
->r_tid
,
2483 return req
->r_result
;
2485 EXPORT_SYMBOL(ceph_osdc_wait_request
);
2488 * sync - wait for all in-flight requests to flush. avoid starvation.
2490 void ceph_osdc_sync(struct ceph_osd_client
*osdc
)
2492 struct ceph_osd_request
*req
;
2493 u64 last_tid
, next_tid
= 0;
2495 mutex_lock(&osdc
->request_mutex
);
2496 last_tid
= osdc
->last_tid
;
2498 req
= __lookup_request_ge(osdc
, next_tid
);
2501 if (req
->r_tid
> last_tid
)
2504 next_tid
= req
->r_tid
+ 1;
2505 if ((req
->r_flags
& CEPH_OSD_FLAG_WRITE
) == 0)
2508 ceph_osdc_get_request(req
);
2509 mutex_unlock(&osdc
->request_mutex
);
2510 dout("sync waiting on tid %llu (last is %llu)\n",
2511 req
->r_tid
, last_tid
);
2512 wait_for_completion(&req
->r_safe_completion
);
2513 mutex_lock(&osdc
->request_mutex
);
2514 ceph_osdc_put_request(req
);
2516 mutex_unlock(&osdc
->request_mutex
);
2517 dout("sync done (thru tid %llu)\n", last_tid
);
2519 EXPORT_SYMBOL(ceph_osdc_sync
);
2522 * Call all pending notify callbacks - for use after a watch is
2523 * unregistered, to make sure no more callbacks for it will be invoked
2525 void ceph_osdc_flush_notifies(struct ceph_osd_client
*osdc
)
2527 flush_workqueue(osdc
->notify_wq
);
2529 EXPORT_SYMBOL(ceph_osdc_flush_notifies
);
2535 int ceph_osdc_init(struct ceph_osd_client
*osdc
, struct ceph_client
*client
)
2540 osdc
->client
= client
;
2541 osdc
->osdmap
= NULL
;
2542 init_rwsem(&osdc
->map_sem
);
2543 init_completion(&osdc
->map_waiters
);
2544 osdc
->last_requested_map
= 0;
2545 mutex_init(&osdc
->request_mutex
);
2547 osdc
->osds
= RB_ROOT
;
2548 INIT_LIST_HEAD(&osdc
->osd_lru
);
2549 osdc
->requests
= RB_ROOT
;
2550 INIT_LIST_HEAD(&osdc
->req_lru
);
2551 INIT_LIST_HEAD(&osdc
->req_unsent
);
2552 INIT_LIST_HEAD(&osdc
->req_notarget
);
2553 INIT_LIST_HEAD(&osdc
->req_linger
);
2554 osdc
->num_requests
= 0;
2555 INIT_DELAYED_WORK(&osdc
->timeout_work
, handle_timeout
);
2556 INIT_DELAYED_WORK(&osdc
->osds_timeout_work
, handle_osds_timeout
);
2557 spin_lock_init(&osdc
->event_lock
);
2558 osdc
->event_tree
= RB_ROOT
;
2559 osdc
->event_count
= 0;
2561 schedule_delayed_work(&osdc
->osds_timeout_work
,
2562 round_jiffies_relative(osdc
->client
->options
->osd_idle_ttl
* HZ
));
2565 osdc
->req_mempool
= mempool_create_kmalloc_pool(10,
2566 sizeof(struct ceph_osd_request
));
2567 if (!osdc
->req_mempool
)
2570 err
= ceph_msgpool_init(&osdc
->msgpool_op
, CEPH_MSG_OSD_OP
,
2571 OSD_OP_FRONT_LEN
, 10, true,
2575 err
= ceph_msgpool_init(&osdc
->msgpool_op_reply
, CEPH_MSG_OSD_OPREPLY
,
2576 OSD_OPREPLY_FRONT_LEN
, 10, true,
2582 osdc
->notify_wq
= create_singlethread_workqueue("ceph-watch-notify");
2583 if (!osdc
->notify_wq
)
2584 goto out_msgpool_reply
;
2589 ceph_msgpool_destroy(&osdc
->msgpool_op_reply
);
2591 ceph_msgpool_destroy(&osdc
->msgpool_op
);
2593 mempool_destroy(osdc
->req_mempool
);
2598 void ceph_osdc_stop(struct ceph_osd_client
*osdc
)
2600 flush_workqueue(osdc
->notify_wq
);
2601 destroy_workqueue(osdc
->notify_wq
);
2602 cancel_delayed_work_sync(&osdc
->timeout_work
);
2603 cancel_delayed_work_sync(&osdc
->osds_timeout_work
);
2605 ceph_osdmap_destroy(osdc
->osdmap
);
2606 osdc
->osdmap
= NULL
;
2608 remove_all_osds(osdc
);
2609 mempool_destroy(osdc
->req_mempool
);
2610 ceph_msgpool_destroy(&osdc
->msgpool_op
);
2611 ceph_msgpool_destroy(&osdc
->msgpool_op_reply
);
2615 * Read some contiguous pages. If we cross a stripe boundary, shorten
2616 * *plen. Return number of bytes read, or error.
2618 int ceph_osdc_readpages(struct ceph_osd_client
*osdc
,
2619 struct ceph_vino vino
, struct ceph_file_layout
*layout
,
2621 u32 truncate_seq
, u64 truncate_size
,
2622 struct page
**pages
, int num_pages
, int page_align
)
2624 struct ceph_osd_request
*req
;
2627 dout("readpages on ino %llx.%llx on %llu~%llu\n", vino
.ino
,
2628 vino
.snap
, off
, *plen
);
2629 req
= ceph_osdc_new_request(osdc
, layout
, vino
, off
, plen
, 1,
2630 CEPH_OSD_OP_READ
, CEPH_OSD_FLAG_READ
,
2631 NULL
, truncate_seq
, truncate_size
,
2634 return PTR_ERR(req
);
2636 /* it may be a short read due to an object boundary */
2638 osd_req_op_extent_osd_data_pages(req
, 0,
2639 pages
, *plen
, page_align
, false, false);
2641 dout("readpages final extent is %llu~%llu (%llu bytes align %d)\n",
2642 off
, *plen
, *plen
, page_align
);
2644 ceph_osdc_build_request(req
, off
, NULL
, vino
.snap
, NULL
);
2646 rc
= ceph_osdc_start_request(osdc
, req
, false);
2648 rc
= ceph_osdc_wait_request(osdc
, req
);
2650 ceph_osdc_put_request(req
);
2651 dout("readpages result %d\n", rc
);
2654 EXPORT_SYMBOL(ceph_osdc_readpages
);
2657 * do a synchronous write on N pages
2659 int ceph_osdc_writepages(struct ceph_osd_client
*osdc
, struct ceph_vino vino
,
2660 struct ceph_file_layout
*layout
,
2661 struct ceph_snap_context
*snapc
,
2663 u32 truncate_seq
, u64 truncate_size
,
2664 struct timespec
*mtime
,
2665 struct page
**pages
, int num_pages
)
2667 struct ceph_osd_request
*req
;
2669 int page_align
= off
& ~PAGE_MASK
;
2671 BUG_ON(vino
.snap
!= CEPH_NOSNAP
); /* snapshots aren't writeable */
2672 req
= ceph_osdc_new_request(osdc
, layout
, vino
, off
, &len
, 1,
2674 CEPH_OSD_FLAG_ONDISK
| CEPH_OSD_FLAG_WRITE
,
2675 snapc
, truncate_seq
, truncate_size
,
2678 return PTR_ERR(req
);
2680 /* it may be a short write due to an object boundary */
2681 osd_req_op_extent_osd_data_pages(req
, 0, pages
, len
, page_align
,
2683 dout("writepages %llu~%llu (%llu bytes)\n", off
, len
, len
);
2685 ceph_osdc_build_request(req
, off
, snapc
, CEPH_NOSNAP
, mtime
);
2687 rc
= ceph_osdc_start_request(osdc
, req
, true);
2689 rc
= ceph_osdc_wait_request(osdc
, req
);
2691 ceph_osdc_put_request(req
);
2694 dout("writepages result %d\n", rc
);
2697 EXPORT_SYMBOL(ceph_osdc_writepages
);
2699 int ceph_osdc_setup(void)
2701 BUG_ON(ceph_osd_request_cache
);
2702 ceph_osd_request_cache
= kmem_cache_create("ceph_osd_request",
2703 sizeof (struct ceph_osd_request
),
2704 __alignof__(struct ceph_osd_request
),
2707 return ceph_osd_request_cache
? 0 : -ENOMEM
;
2709 EXPORT_SYMBOL(ceph_osdc_setup
);
2711 void ceph_osdc_cleanup(void)
2713 BUG_ON(!ceph_osd_request_cache
);
2714 kmem_cache_destroy(ceph_osd_request_cache
);
2715 ceph_osd_request_cache
= NULL
;
2717 EXPORT_SYMBOL(ceph_osdc_cleanup
);
2720 * handle incoming message
2722 static void dispatch(struct ceph_connection
*con
, struct ceph_msg
*msg
)
2724 struct ceph_osd
*osd
= con
->private;
2725 struct ceph_osd_client
*osdc
;
2726 int type
= le16_to_cpu(msg
->hdr
.type
);
2733 case CEPH_MSG_OSD_MAP
:
2734 ceph_osdc_handle_map(osdc
, msg
);
2736 case CEPH_MSG_OSD_OPREPLY
:
2737 handle_reply(osdc
, msg
, con
);
2739 case CEPH_MSG_WATCH_NOTIFY
:
2740 handle_watch_notify(osdc
, msg
);
2744 pr_err("received unknown message type %d %s\n", type
,
2745 ceph_msg_type_name(type
));
2752 * lookup and return message for incoming reply. set up reply message
2755 static struct ceph_msg
*get_reply(struct ceph_connection
*con
,
2756 struct ceph_msg_header
*hdr
,
2759 struct ceph_osd
*osd
= con
->private;
2760 struct ceph_osd_client
*osdc
= osd
->o_osdc
;
2762 struct ceph_osd_request
*req
;
2763 int front_len
= le32_to_cpu(hdr
->front_len
);
2764 int data_len
= le32_to_cpu(hdr
->data_len
);
2767 tid
= le64_to_cpu(hdr
->tid
);
2768 mutex_lock(&osdc
->request_mutex
);
2769 req
= __lookup_request(osdc
, tid
);
2773 dout("get_reply unknown tid %llu from osd%d\n", tid
,
2778 if (req
->r_reply
->con
)
2779 dout("%s revoking msg %p from old con %p\n", __func__
,
2780 req
->r_reply
, req
->r_reply
->con
);
2781 ceph_msg_revoke_incoming(req
->r_reply
);
2783 if (front_len
> req
->r_reply
->front_alloc_len
) {
2784 pr_warn("get_reply front %d > preallocated %d (%u#%llu)\n",
2785 front_len
, req
->r_reply
->front_alloc_len
,
2786 (unsigned int)con
->peer_name
.type
,
2787 le64_to_cpu(con
->peer_name
.num
));
2788 m
= ceph_msg_new(CEPH_MSG_OSD_OPREPLY
, front_len
, GFP_NOFS
,
2792 ceph_msg_put(req
->r_reply
);
2795 m
= ceph_msg_get(req
->r_reply
);
2798 struct ceph_osd_data
*osd_data
;
2801 * XXX This is assuming there is only one op containing
2802 * XXX page data. Probably OK for reads, but this
2803 * XXX ought to be done more generally.
2805 osd_data
= osd_req_op_extent_osd_data(req
, 0);
2806 if (osd_data
->type
== CEPH_OSD_DATA_TYPE_PAGES
) {
2807 if (osd_data
->pages
&&
2808 unlikely(osd_data
->length
< data_len
)) {
2810 pr_warn("tid %lld reply has %d bytes we had only %llu bytes ready\n",
2811 tid
, data_len
, osd_data
->length
);
2820 dout("get_reply tid %lld %p\n", tid
, m
);
2823 mutex_unlock(&osdc
->request_mutex
);
2828 static struct ceph_msg
*alloc_msg(struct ceph_connection
*con
,
2829 struct ceph_msg_header
*hdr
,
2832 struct ceph_osd
*osd
= con
->private;
2833 int type
= le16_to_cpu(hdr
->type
);
2834 int front
= le32_to_cpu(hdr
->front_len
);
2838 case CEPH_MSG_OSD_MAP
:
2839 case CEPH_MSG_WATCH_NOTIFY
:
2840 return ceph_msg_new(type
, front
, GFP_NOFS
, false);
2841 case CEPH_MSG_OSD_OPREPLY
:
2842 return get_reply(con
, hdr
, skip
);
2844 pr_info("alloc_msg unexpected msg type %d from osd%d\n", type
,
2852 * Wrappers to refcount containing ceph_osd struct
2854 static struct ceph_connection
*get_osd_con(struct ceph_connection
*con
)
2856 struct ceph_osd
*osd
= con
->private;
2862 static void put_osd_con(struct ceph_connection
*con
)
2864 struct ceph_osd
*osd
= con
->private;
2872 * Note: returned pointer is the address of a structure that's
2873 * managed separately. Caller must *not* attempt to free it.
2875 static struct ceph_auth_handshake
*get_authorizer(struct ceph_connection
*con
,
2876 int *proto
, int force_new
)
2878 struct ceph_osd
*o
= con
->private;
2879 struct ceph_osd_client
*osdc
= o
->o_osdc
;
2880 struct ceph_auth_client
*ac
= osdc
->client
->monc
.auth
;
2881 struct ceph_auth_handshake
*auth
= &o
->o_auth
;
2883 if (force_new
&& auth
->authorizer
) {
2884 ceph_auth_destroy_authorizer(ac
, auth
->authorizer
);
2885 auth
->authorizer
= NULL
;
2887 if (!auth
->authorizer
) {
2888 int ret
= ceph_auth_create_authorizer(ac
, CEPH_ENTITY_TYPE_OSD
,
2891 return ERR_PTR(ret
);
2893 int ret
= ceph_auth_update_authorizer(ac
, CEPH_ENTITY_TYPE_OSD
,
2896 return ERR_PTR(ret
);
2898 *proto
= ac
->protocol
;
2904 static int verify_authorizer_reply(struct ceph_connection
*con
, int len
)
2906 struct ceph_osd
*o
= con
->private;
2907 struct ceph_osd_client
*osdc
= o
->o_osdc
;
2908 struct ceph_auth_client
*ac
= osdc
->client
->monc
.auth
;
2910 return ceph_auth_verify_authorizer_reply(ac
, o
->o_auth
.authorizer
, len
);
2913 static int invalidate_authorizer(struct ceph_connection
*con
)
2915 struct ceph_osd
*o
= con
->private;
2916 struct ceph_osd_client
*osdc
= o
->o_osdc
;
2917 struct ceph_auth_client
*ac
= osdc
->client
->monc
.auth
;
2919 ceph_auth_invalidate_authorizer(ac
, CEPH_ENTITY_TYPE_OSD
);
2920 return ceph_monc_validate_auth(&osdc
->client
->monc
);
2923 static const struct ceph_connection_operations osd_con_ops
= {
2926 .dispatch
= dispatch
,
2927 .get_authorizer
= get_authorizer
,
2928 .verify_authorizer_reply
= verify_authorizer_reply
,
2929 .invalidate_authorizer
= invalidate_authorizer
,
2930 .alloc_msg
= alloc_msg
,