1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * io_uring opcode handling table |
4 | */ |
5 | #include <linux/kernel.h> |
6 | #include <linux/errno.h> |
7 | #include <linux/fs.h> |
8 | #include <linux/file.h> |
9 | #include <linux/io_uring.h> |
10 | |
11 | #include "io_uring.h" |
12 | #include "opdef.h" |
13 | #include "refs.h" |
14 | #include "tctx.h" |
15 | #include "sqpoll.h" |
16 | #include "fdinfo.h" |
17 | #include "kbuf.h" |
18 | #include "rsrc.h" |
19 | |
20 | #include "xattr.h" |
21 | #include "nop.h" |
22 | #include "fs.h" |
23 | #include "splice.h" |
24 | #include "sync.h" |
25 | #include "advise.h" |
26 | #include "openclose.h" |
27 | #include "uring_cmd.h" |
28 | #include "epoll.h" |
29 | #include "statx.h" |
30 | #include "net.h" |
31 | #include "msg_ring.h" |
32 | #include "timeout.h" |
33 | #include "poll.h" |
34 | #include "cancel.h" |
35 | #include "rw.h" |
36 | #include "waitid.h" |
37 | #include "futex.h" |
38 | |
39 | static int io_no_issue(struct io_kiocb *req, unsigned int issue_flags) |
40 | { |
41 | WARN_ON_ONCE(1); |
42 | return -ECANCELED; |
43 | } |
44 | |
45 | static __maybe_unused int io_eopnotsupp_prep(struct io_kiocb *kiocb, |
46 | const struct io_uring_sqe *sqe) |
47 | { |
48 | return -EOPNOTSUPP; |
49 | } |
50 | |
51 | const struct io_issue_def io_issue_defs[] = { |
52 | [IORING_OP_NOP] = { |
53 | .audit_skip = 1, |
54 | .iopoll = 1, |
55 | .prep = io_nop_prep, |
56 | .issue = io_nop, |
57 | }, |
58 | [IORING_OP_READV] = { |
59 | .needs_file = 1, |
60 | .unbound_nonreg_file = 1, |
61 | .pollin = 1, |
62 | .buffer_select = 1, |
63 | .plug = 1, |
64 | .audit_skip = 1, |
65 | .ioprio = 1, |
66 | .iopoll = 1, |
67 | .iopoll_queue = 1, |
68 | .vectored = 1, |
69 | .prep = io_prep_rw, |
70 | .issue = io_read, |
71 | }, |
72 | [IORING_OP_WRITEV] = { |
73 | .needs_file = 1, |
74 | .hash_reg_file = 1, |
75 | .unbound_nonreg_file = 1, |
76 | .pollout = 1, |
77 | .plug = 1, |
78 | .audit_skip = 1, |
79 | .ioprio = 1, |
80 | .iopoll = 1, |
81 | .iopoll_queue = 1, |
82 | .vectored = 1, |
83 | .prep = io_prep_rw, |
84 | .issue = io_write, |
85 | }, |
86 | [IORING_OP_FSYNC] = { |
87 | .needs_file = 1, |
88 | .audit_skip = 1, |
89 | .prep = io_fsync_prep, |
90 | .issue = io_fsync, |
91 | }, |
92 | [IORING_OP_READ_FIXED] = { |
93 | .needs_file = 1, |
94 | .unbound_nonreg_file = 1, |
95 | .pollin = 1, |
96 | .plug = 1, |
97 | .audit_skip = 1, |
98 | .ioprio = 1, |
99 | .iopoll = 1, |
100 | .iopoll_queue = 1, |
101 | .prep = io_prep_rw, |
102 | .issue = io_read, |
103 | }, |
104 | [IORING_OP_WRITE_FIXED] = { |
105 | .needs_file = 1, |
106 | .hash_reg_file = 1, |
107 | .unbound_nonreg_file = 1, |
108 | .pollout = 1, |
109 | .plug = 1, |
110 | .audit_skip = 1, |
111 | .ioprio = 1, |
112 | .iopoll = 1, |
113 | .iopoll_queue = 1, |
114 | .prep = io_prep_rw, |
115 | .issue = io_write, |
116 | }, |
117 | [IORING_OP_POLL_ADD] = { |
118 | .needs_file = 1, |
119 | .unbound_nonreg_file = 1, |
120 | .audit_skip = 1, |
121 | .prep = io_poll_add_prep, |
122 | .issue = io_poll_add, |
123 | }, |
124 | [IORING_OP_POLL_REMOVE] = { |
125 | .audit_skip = 1, |
126 | .prep = io_poll_remove_prep, |
127 | .issue = io_poll_remove, |
128 | }, |
129 | [IORING_OP_SYNC_FILE_RANGE] = { |
130 | .needs_file = 1, |
131 | .audit_skip = 1, |
132 | .prep = io_sfr_prep, |
133 | .issue = io_sync_file_range, |
134 | }, |
135 | [IORING_OP_SENDMSG] = { |
136 | .needs_file = 1, |
137 | .unbound_nonreg_file = 1, |
138 | .pollout = 1, |
139 | .ioprio = 1, |
140 | .manual_alloc = 1, |
141 | #if defined(CONFIG_NET) |
142 | .prep = io_sendmsg_prep, |
143 | .issue = io_sendmsg, |
144 | #else |
145 | .prep = io_eopnotsupp_prep, |
146 | #endif |
147 | }, |
148 | [IORING_OP_RECVMSG] = { |
149 | .needs_file = 1, |
150 | .unbound_nonreg_file = 1, |
151 | .pollin = 1, |
152 | .buffer_select = 1, |
153 | .ioprio = 1, |
154 | .manual_alloc = 1, |
155 | #if defined(CONFIG_NET) |
156 | .prep = io_recvmsg_prep, |
157 | .issue = io_recvmsg, |
158 | #else |
159 | .prep = io_eopnotsupp_prep, |
160 | #endif |
161 | }, |
162 | [IORING_OP_TIMEOUT] = { |
163 | .audit_skip = 1, |
164 | .prep = io_timeout_prep, |
165 | .issue = io_timeout, |
166 | }, |
167 | [IORING_OP_TIMEOUT_REMOVE] = { |
168 | /* used by timeout updates' prep() */ |
169 | .audit_skip = 1, |
170 | .prep = io_timeout_remove_prep, |
171 | .issue = io_timeout_remove, |
172 | }, |
173 | [IORING_OP_ACCEPT] = { |
174 | .needs_file = 1, |
175 | .unbound_nonreg_file = 1, |
176 | .pollin = 1, |
177 | .poll_exclusive = 1, |
178 | .ioprio = 1, /* used for flags */ |
179 | #if defined(CONFIG_NET) |
180 | .prep = io_accept_prep, |
181 | .issue = io_accept, |
182 | #else |
183 | .prep = io_eopnotsupp_prep, |
184 | #endif |
185 | }, |
186 | [IORING_OP_ASYNC_CANCEL] = { |
187 | .audit_skip = 1, |
188 | .prep = io_async_cancel_prep, |
189 | .issue = io_async_cancel, |
190 | }, |
191 | [IORING_OP_LINK_TIMEOUT] = { |
192 | .audit_skip = 1, |
193 | .prep = io_link_timeout_prep, |
194 | .issue = io_no_issue, |
195 | }, |
196 | [IORING_OP_CONNECT] = { |
197 | .needs_file = 1, |
198 | .unbound_nonreg_file = 1, |
199 | .pollout = 1, |
200 | #if defined(CONFIG_NET) |
201 | .prep = io_connect_prep, |
202 | .issue = io_connect, |
203 | #else |
204 | .prep = io_eopnotsupp_prep, |
205 | #endif |
206 | }, |
207 | [IORING_OP_FALLOCATE] = { |
208 | .needs_file = 1, |
209 | .prep = io_fallocate_prep, |
210 | .issue = io_fallocate, |
211 | }, |
212 | [IORING_OP_OPENAT] = { |
213 | .prep = io_openat_prep, |
214 | .issue = io_openat, |
215 | }, |
216 | [IORING_OP_CLOSE] = { |
217 | .prep = io_close_prep, |
218 | .issue = io_close, |
219 | }, |
220 | [IORING_OP_FILES_UPDATE] = { |
221 | .audit_skip = 1, |
222 | .iopoll = 1, |
223 | .prep = io_files_update_prep, |
224 | .issue = io_files_update, |
225 | }, |
226 | [IORING_OP_STATX] = { |
227 | .audit_skip = 1, |
228 | .prep = io_statx_prep, |
229 | .issue = io_statx, |
230 | }, |
231 | [IORING_OP_READ] = { |
232 | .needs_file = 1, |
233 | .unbound_nonreg_file = 1, |
234 | .pollin = 1, |
235 | .buffer_select = 1, |
236 | .plug = 1, |
237 | .audit_skip = 1, |
238 | .ioprio = 1, |
239 | .iopoll = 1, |
240 | .iopoll_queue = 1, |
241 | .prep = io_prep_rw, |
242 | .issue = io_read, |
243 | }, |
244 | [IORING_OP_WRITE] = { |
245 | .needs_file = 1, |
246 | .hash_reg_file = 1, |
247 | .unbound_nonreg_file = 1, |
248 | .pollout = 1, |
249 | .plug = 1, |
250 | .audit_skip = 1, |
251 | .ioprio = 1, |
252 | .iopoll = 1, |
253 | .iopoll_queue = 1, |
254 | .prep = io_prep_rw, |
255 | .issue = io_write, |
256 | }, |
257 | [IORING_OP_FADVISE] = { |
258 | .needs_file = 1, |
259 | .audit_skip = 1, |
260 | .prep = io_fadvise_prep, |
261 | .issue = io_fadvise, |
262 | }, |
263 | [IORING_OP_MADVISE] = { |
264 | .audit_skip = 1, |
265 | .prep = io_madvise_prep, |
266 | .issue = io_madvise, |
267 | }, |
268 | [IORING_OP_SEND] = { |
269 | .needs_file = 1, |
270 | .unbound_nonreg_file = 1, |
271 | .pollout = 1, |
272 | .audit_skip = 1, |
273 | .ioprio = 1, |
274 | .manual_alloc = 1, |
275 | #if defined(CONFIG_NET) |
276 | .prep = io_sendmsg_prep, |
277 | .issue = io_send, |
278 | #else |
279 | .prep = io_eopnotsupp_prep, |
280 | #endif |
281 | }, |
282 | [IORING_OP_RECV] = { |
283 | .needs_file = 1, |
284 | .unbound_nonreg_file = 1, |
285 | .pollin = 1, |
286 | .buffer_select = 1, |
287 | .audit_skip = 1, |
288 | .ioprio = 1, |
289 | #if defined(CONFIG_NET) |
290 | .prep = io_recvmsg_prep, |
291 | .issue = io_recv, |
292 | #else |
293 | .prep = io_eopnotsupp_prep, |
294 | #endif |
295 | }, |
296 | [IORING_OP_OPENAT2] = { |
297 | .prep = io_openat2_prep, |
298 | .issue = io_openat2, |
299 | }, |
300 | [IORING_OP_EPOLL_CTL] = { |
301 | .unbound_nonreg_file = 1, |
302 | .audit_skip = 1, |
303 | #if defined(CONFIG_EPOLL) |
304 | .prep = io_epoll_ctl_prep, |
305 | .issue = io_epoll_ctl, |
306 | #else |
307 | .prep = io_eopnotsupp_prep, |
308 | #endif |
309 | }, |
310 | [IORING_OP_SPLICE] = { |
311 | .needs_file = 1, |
312 | .hash_reg_file = 1, |
313 | .unbound_nonreg_file = 1, |
314 | .audit_skip = 1, |
315 | .prep = io_splice_prep, |
316 | .issue = io_splice, |
317 | }, |
318 | [IORING_OP_PROVIDE_BUFFERS] = { |
319 | .audit_skip = 1, |
320 | .iopoll = 1, |
321 | .prep = io_provide_buffers_prep, |
322 | .issue = io_provide_buffers, |
323 | }, |
324 | [IORING_OP_REMOVE_BUFFERS] = { |
325 | .audit_skip = 1, |
326 | .iopoll = 1, |
327 | .prep = io_remove_buffers_prep, |
328 | .issue = io_remove_buffers, |
329 | }, |
330 | [IORING_OP_TEE] = { |
331 | .needs_file = 1, |
332 | .hash_reg_file = 1, |
333 | .unbound_nonreg_file = 1, |
334 | .audit_skip = 1, |
335 | .prep = io_tee_prep, |
336 | .issue = io_tee, |
337 | }, |
338 | [IORING_OP_SHUTDOWN] = { |
339 | .needs_file = 1, |
340 | #if defined(CONFIG_NET) |
341 | .prep = io_shutdown_prep, |
342 | .issue = io_shutdown, |
343 | #else |
344 | .prep = io_eopnotsupp_prep, |
345 | #endif |
346 | }, |
347 | [IORING_OP_RENAMEAT] = { |
348 | .prep = io_renameat_prep, |
349 | .issue = io_renameat, |
350 | }, |
351 | [IORING_OP_UNLINKAT] = { |
352 | .prep = io_unlinkat_prep, |
353 | .issue = io_unlinkat, |
354 | }, |
355 | [IORING_OP_MKDIRAT] = { |
356 | .prep = io_mkdirat_prep, |
357 | .issue = io_mkdirat, |
358 | }, |
359 | [IORING_OP_SYMLINKAT] = { |
360 | .prep = io_symlinkat_prep, |
361 | .issue = io_symlinkat, |
362 | }, |
363 | [IORING_OP_LINKAT] = { |
364 | .prep = io_linkat_prep, |
365 | .issue = io_linkat, |
366 | }, |
367 | [IORING_OP_MSG_RING] = { |
368 | .needs_file = 1, |
369 | .iopoll = 1, |
370 | .prep = io_msg_ring_prep, |
371 | .issue = io_msg_ring, |
372 | }, |
373 | [IORING_OP_FSETXATTR] = { |
374 | .needs_file = 1, |
375 | .prep = io_fsetxattr_prep, |
376 | .issue = io_fsetxattr, |
377 | }, |
378 | [IORING_OP_SETXATTR] = { |
379 | .prep = io_setxattr_prep, |
380 | .issue = io_setxattr, |
381 | }, |
382 | [IORING_OP_FGETXATTR] = { |
383 | .needs_file = 1, |
384 | .prep = io_fgetxattr_prep, |
385 | .issue = io_fgetxattr, |
386 | }, |
387 | [IORING_OP_GETXATTR] = { |
388 | .prep = io_getxattr_prep, |
389 | .issue = io_getxattr, |
390 | }, |
391 | [IORING_OP_SOCKET] = { |
392 | .audit_skip = 1, |
393 | #if defined(CONFIG_NET) |
394 | .prep = io_socket_prep, |
395 | .issue = io_socket, |
396 | #else |
397 | .prep = io_eopnotsupp_prep, |
398 | #endif |
399 | }, |
400 | [IORING_OP_URING_CMD] = { |
401 | .needs_file = 1, |
402 | .plug = 1, |
403 | .iopoll = 1, |
404 | .iopoll_queue = 1, |
405 | .prep = io_uring_cmd_prep, |
406 | .issue = io_uring_cmd, |
407 | }, |
408 | [IORING_OP_SEND_ZC] = { |
409 | .needs_file = 1, |
410 | .unbound_nonreg_file = 1, |
411 | .pollout = 1, |
412 | .audit_skip = 1, |
413 | .ioprio = 1, |
414 | .manual_alloc = 1, |
415 | #if defined(CONFIG_NET) |
416 | .prep = io_send_zc_prep, |
417 | .issue = io_send_zc, |
418 | #else |
419 | .prep = io_eopnotsupp_prep, |
420 | #endif |
421 | }, |
422 | [IORING_OP_SENDMSG_ZC] = { |
423 | .needs_file = 1, |
424 | .unbound_nonreg_file = 1, |
425 | .pollout = 1, |
426 | .ioprio = 1, |
427 | .manual_alloc = 1, |
428 | #if defined(CONFIG_NET) |
429 | .prep = io_send_zc_prep, |
430 | .issue = io_sendmsg_zc, |
431 | #else |
432 | .prep = io_eopnotsupp_prep, |
433 | #endif |
434 | }, |
435 | [IORING_OP_READ_MULTISHOT] = { |
436 | .needs_file = 1, |
437 | .unbound_nonreg_file = 1, |
438 | .pollin = 1, |
439 | .buffer_select = 1, |
440 | .audit_skip = 1, |
441 | .prep = io_read_mshot_prep, |
442 | .issue = io_read_mshot, |
443 | }, |
444 | [IORING_OP_WAITID] = { |
445 | .prep = io_waitid_prep, |
446 | .issue = io_waitid, |
447 | }, |
448 | [IORING_OP_FUTEX_WAIT] = { |
449 | #if defined(CONFIG_FUTEX) |
450 | .prep = io_futex_prep, |
451 | .issue = io_futex_wait, |
452 | #else |
453 | .prep = io_eopnotsupp_prep, |
454 | #endif |
455 | }, |
456 | [IORING_OP_FUTEX_WAKE] = { |
457 | #if defined(CONFIG_FUTEX) |
458 | .prep = io_futex_prep, |
459 | .issue = io_futex_wake, |
460 | #else |
461 | .prep = io_eopnotsupp_prep, |
462 | #endif |
463 | }, |
464 | [IORING_OP_FUTEX_WAITV] = { |
465 | #if defined(CONFIG_FUTEX) |
466 | .prep = io_futexv_prep, |
467 | .issue = io_futexv_wait, |
468 | #else |
469 | .prep = io_eopnotsupp_prep, |
470 | #endif |
471 | }, |
472 | }; |
473 | |
474 | const struct io_cold_def io_cold_defs[] = { |
475 | [IORING_OP_NOP] = { |
476 | .name = "NOP" , |
477 | }, |
478 | [IORING_OP_READV] = { |
479 | .async_size = sizeof(struct io_async_rw), |
480 | .name = "READV" , |
481 | .prep_async = io_readv_prep_async, |
482 | .cleanup = io_readv_writev_cleanup, |
483 | .fail = io_rw_fail, |
484 | }, |
485 | [IORING_OP_WRITEV] = { |
486 | .async_size = sizeof(struct io_async_rw), |
487 | .name = "WRITEV" , |
488 | .prep_async = io_writev_prep_async, |
489 | .cleanup = io_readv_writev_cleanup, |
490 | .fail = io_rw_fail, |
491 | }, |
492 | [IORING_OP_FSYNC] = { |
493 | .name = "FSYNC" , |
494 | }, |
495 | [IORING_OP_READ_FIXED] = { |
496 | .async_size = sizeof(struct io_async_rw), |
497 | .name = "READ_FIXED" , |
498 | .fail = io_rw_fail, |
499 | }, |
500 | [IORING_OP_WRITE_FIXED] = { |
501 | .async_size = sizeof(struct io_async_rw), |
502 | .name = "WRITE_FIXED" , |
503 | .fail = io_rw_fail, |
504 | }, |
505 | [IORING_OP_POLL_ADD] = { |
506 | .name = "POLL_ADD" , |
507 | }, |
508 | [IORING_OP_POLL_REMOVE] = { |
509 | .name = "POLL_REMOVE" , |
510 | }, |
511 | [IORING_OP_SYNC_FILE_RANGE] = { |
512 | .name = "SYNC_FILE_RANGE" , |
513 | }, |
514 | [IORING_OP_SENDMSG] = { |
515 | .name = "SENDMSG" , |
516 | #if defined(CONFIG_NET) |
517 | .async_size = sizeof(struct io_async_msghdr), |
518 | .prep_async = io_sendmsg_prep_async, |
519 | .cleanup = io_sendmsg_recvmsg_cleanup, |
520 | .fail = io_sendrecv_fail, |
521 | #endif |
522 | }, |
523 | [IORING_OP_RECVMSG] = { |
524 | .name = "RECVMSG" , |
525 | #if defined(CONFIG_NET) |
526 | .async_size = sizeof(struct io_async_msghdr), |
527 | .prep_async = io_recvmsg_prep_async, |
528 | .cleanup = io_sendmsg_recvmsg_cleanup, |
529 | .fail = io_sendrecv_fail, |
530 | #endif |
531 | }, |
532 | [IORING_OP_TIMEOUT] = { |
533 | .async_size = sizeof(struct io_timeout_data), |
534 | .name = "TIMEOUT" , |
535 | }, |
536 | [IORING_OP_TIMEOUT_REMOVE] = { |
537 | .name = "TIMEOUT_REMOVE" , |
538 | }, |
539 | [IORING_OP_ACCEPT] = { |
540 | .name = "ACCEPT" , |
541 | }, |
542 | [IORING_OP_ASYNC_CANCEL] = { |
543 | .name = "ASYNC_CANCEL" , |
544 | }, |
545 | [IORING_OP_LINK_TIMEOUT] = { |
546 | .async_size = sizeof(struct io_timeout_data), |
547 | .name = "LINK_TIMEOUT" , |
548 | }, |
549 | [IORING_OP_CONNECT] = { |
550 | .name = "CONNECT" , |
551 | #if defined(CONFIG_NET) |
552 | .async_size = sizeof(struct io_async_connect), |
553 | .prep_async = io_connect_prep_async, |
554 | #endif |
555 | }, |
556 | [IORING_OP_FALLOCATE] = { |
557 | .name = "FALLOCATE" , |
558 | }, |
559 | [IORING_OP_OPENAT] = { |
560 | .name = "OPENAT" , |
561 | .cleanup = io_open_cleanup, |
562 | }, |
563 | [IORING_OP_CLOSE] = { |
564 | .name = "CLOSE" , |
565 | }, |
566 | [IORING_OP_FILES_UPDATE] = { |
567 | .name = "FILES_UPDATE" , |
568 | }, |
569 | [IORING_OP_STATX] = { |
570 | .name = "STATX" , |
571 | .cleanup = io_statx_cleanup, |
572 | }, |
573 | [IORING_OP_READ] = { |
574 | .async_size = sizeof(struct io_async_rw), |
575 | .name = "READ" , |
576 | .fail = io_rw_fail, |
577 | }, |
578 | [IORING_OP_WRITE] = { |
579 | .async_size = sizeof(struct io_async_rw), |
580 | .name = "WRITE" , |
581 | .fail = io_rw_fail, |
582 | }, |
583 | [IORING_OP_FADVISE] = { |
584 | .name = "FADVISE" , |
585 | }, |
586 | [IORING_OP_MADVISE] = { |
587 | .name = "MADVISE" , |
588 | }, |
589 | [IORING_OP_SEND] = { |
590 | .name = "SEND" , |
591 | #if defined(CONFIG_NET) |
592 | .async_size = sizeof(struct io_async_msghdr), |
593 | .fail = io_sendrecv_fail, |
594 | .prep_async = io_send_prep_async, |
595 | #endif |
596 | }, |
597 | [IORING_OP_RECV] = { |
598 | .name = "RECV" , |
599 | #if defined(CONFIG_NET) |
600 | .fail = io_sendrecv_fail, |
601 | #endif |
602 | }, |
603 | [IORING_OP_OPENAT2] = { |
604 | .name = "OPENAT2" , |
605 | .cleanup = io_open_cleanup, |
606 | }, |
607 | [IORING_OP_EPOLL_CTL] = { |
608 | .name = "EPOLL" , |
609 | }, |
610 | [IORING_OP_SPLICE] = { |
611 | .name = "SPLICE" , |
612 | }, |
613 | [IORING_OP_PROVIDE_BUFFERS] = { |
614 | .name = "PROVIDE_BUFFERS" , |
615 | }, |
616 | [IORING_OP_REMOVE_BUFFERS] = { |
617 | .name = "REMOVE_BUFFERS" , |
618 | }, |
619 | [IORING_OP_TEE] = { |
620 | .name = "TEE" , |
621 | }, |
622 | [IORING_OP_SHUTDOWN] = { |
623 | .name = "SHUTDOWN" , |
624 | }, |
625 | [IORING_OP_RENAMEAT] = { |
626 | .name = "RENAMEAT" , |
627 | .cleanup = io_renameat_cleanup, |
628 | }, |
629 | [IORING_OP_UNLINKAT] = { |
630 | .name = "UNLINKAT" , |
631 | .cleanup = io_unlinkat_cleanup, |
632 | }, |
633 | [IORING_OP_MKDIRAT] = { |
634 | .name = "MKDIRAT" , |
635 | .cleanup = io_mkdirat_cleanup, |
636 | }, |
637 | [IORING_OP_SYMLINKAT] = { |
638 | .name = "SYMLINKAT" , |
639 | .cleanup = io_link_cleanup, |
640 | }, |
641 | [IORING_OP_LINKAT] = { |
642 | .name = "LINKAT" , |
643 | .cleanup = io_link_cleanup, |
644 | }, |
645 | [IORING_OP_MSG_RING] = { |
646 | .name = "MSG_RING" , |
647 | .cleanup = io_msg_ring_cleanup, |
648 | }, |
649 | [IORING_OP_FSETXATTR] = { |
650 | .name = "FSETXATTR" , |
651 | .cleanup = io_xattr_cleanup, |
652 | }, |
653 | [IORING_OP_SETXATTR] = { |
654 | .name = "SETXATTR" , |
655 | .cleanup = io_xattr_cleanup, |
656 | }, |
657 | [IORING_OP_FGETXATTR] = { |
658 | .name = "FGETXATTR" , |
659 | .cleanup = io_xattr_cleanup, |
660 | }, |
661 | [IORING_OP_GETXATTR] = { |
662 | .name = "GETXATTR" , |
663 | .cleanup = io_xattr_cleanup, |
664 | }, |
665 | [IORING_OP_SOCKET] = { |
666 | .name = "SOCKET" , |
667 | }, |
668 | [IORING_OP_URING_CMD] = { |
669 | .name = "URING_CMD" , |
670 | .async_size = 2 * sizeof(struct io_uring_sqe), |
671 | .prep_async = io_uring_cmd_prep_async, |
672 | }, |
673 | [IORING_OP_SEND_ZC] = { |
674 | .name = "SEND_ZC" , |
675 | #if defined(CONFIG_NET) |
676 | .async_size = sizeof(struct io_async_msghdr), |
677 | .prep_async = io_send_prep_async, |
678 | .cleanup = io_send_zc_cleanup, |
679 | .fail = io_sendrecv_fail, |
680 | #endif |
681 | }, |
682 | [IORING_OP_SENDMSG_ZC] = { |
683 | .name = "SENDMSG_ZC" , |
684 | #if defined(CONFIG_NET) |
685 | .async_size = sizeof(struct io_async_msghdr), |
686 | .prep_async = io_sendmsg_prep_async, |
687 | .cleanup = io_send_zc_cleanup, |
688 | .fail = io_sendrecv_fail, |
689 | #endif |
690 | }, |
691 | [IORING_OP_READ_MULTISHOT] = { |
692 | .name = "READ_MULTISHOT" , |
693 | }, |
694 | [IORING_OP_WAITID] = { |
695 | .name = "WAITID" , |
696 | .async_size = sizeof(struct io_waitid_async), |
697 | }, |
698 | [IORING_OP_FUTEX_WAIT] = { |
699 | .name = "FUTEX_WAIT" , |
700 | }, |
701 | [IORING_OP_FUTEX_WAKE] = { |
702 | .name = "FUTEX_WAKE" , |
703 | }, |
704 | [IORING_OP_FUTEX_WAITV] = { |
705 | .name = "FUTEX_WAITV" , |
706 | }, |
707 | }; |
708 | |
709 | const char *io_uring_get_opcode(u8 opcode) |
710 | { |
711 | if (opcode < IORING_OP_LAST) |
712 | return io_cold_defs[opcode].name; |
713 | return "INVALID" ; |
714 | } |
715 | |
716 | void __init io_uring_optable_init(void) |
717 | { |
718 | int i; |
719 | |
720 | BUILD_BUG_ON(ARRAY_SIZE(io_cold_defs) != IORING_OP_LAST); |
721 | BUILD_BUG_ON(ARRAY_SIZE(io_issue_defs) != IORING_OP_LAST); |
722 | |
723 | for (i = 0; i < ARRAY_SIZE(io_issue_defs); i++) { |
724 | BUG_ON(!io_issue_defs[i].prep); |
725 | if (io_issue_defs[i].prep != io_eopnotsupp_prep) |
726 | BUG_ON(!io_issue_defs[i].issue); |
727 | WARN_ON_ONCE(!io_cold_defs[i].name); |
728 | } |
729 | } |
730 | |