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Linux 6.16-rc6
[linux-block.git] / io_uring / opdef.c
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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#include <linux/io_uring/cmd.h>
11
12#include "io_uring.h"
13#include "opdef.h"
14#include "refs.h"
15#include "tctx.h"
16#include "sqpoll.h"
17#include "fdinfo.h"
18#include "kbuf.h"
19#include "rsrc.h"
20
21#include "xattr.h"
22#include "nop.h"
23#include "fs.h"
24#include "splice.h"
25#include "sync.h"
26#include "advise.h"
27#include "openclose.h"
28#include "uring_cmd.h"
29#include "epoll.h"
30#include "statx.h"
31#include "net.h"
32#include "msg_ring.h"
33#include "timeout.h"
34#include "poll.h"
35#include "cancel.h"
36#include "rw.h"
37#include "waitid.h"
38#include "futex.h"
39#include "truncate.h"
40#include "zcrx.h"
41
42static int io_no_issue(struct io_kiocb *req, unsigned int issue_flags)
43{
44 WARN_ON_ONCE(1);
45 return -ECANCELED;
46}
47
48static __maybe_unused int io_eopnotsupp_prep(struct io_kiocb *kiocb,
49 const struct io_uring_sqe *sqe)
50{
51 return -EOPNOTSUPP;
52}
53
54const struct io_issue_def io_issue_defs[] = {
55 [IORING_OP_NOP] = {
56 .audit_skip = 1,
57 .iopoll = 1,
58 .prep = io_nop_prep,
59 .issue = io_nop,
60 },
61 [IORING_OP_READV] = {
62 .needs_file = 1,
63 .unbound_nonreg_file = 1,
64 .pollin = 1,
65 .buffer_select = 1,
66 .plug = 1,
67 .audit_skip = 1,
68 .ioprio = 1,
69 .iopoll = 1,
70 .iopoll_queue = 1,
71 .vectored = 1,
72 .async_size = sizeof(struct io_async_rw),
73 .prep = io_prep_readv,
74 .issue = io_read,
75 },
76 [IORING_OP_WRITEV] = {
77 .needs_file = 1,
78 .hash_reg_file = 1,
79 .unbound_nonreg_file = 1,
80 .pollout = 1,
81 .plug = 1,
82 .audit_skip = 1,
83 .ioprio = 1,
84 .iopoll = 1,
85 .iopoll_queue = 1,
86 .vectored = 1,
87 .async_size = sizeof(struct io_async_rw),
88 .prep = io_prep_writev,
89 .issue = io_write,
90 },
91 [IORING_OP_FSYNC] = {
92 .needs_file = 1,
93 .audit_skip = 1,
94 .prep = io_fsync_prep,
95 .issue = io_fsync,
96 },
97 [IORING_OP_READ_FIXED] = {
98 .needs_file = 1,
99 .unbound_nonreg_file = 1,
100 .pollin = 1,
101 .plug = 1,
102 .audit_skip = 1,
103 .ioprio = 1,
104 .iopoll = 1,
105 .iopoll_queue = 1,
106 .async_size = sizeof(struct io_async_rw),
107 .prep = io_prep_read_fixed,
108 .issue = io_read_fixed,
109 },
110 [IORING_OP_WRITE_FIXED] = {
111 .needs_file = 1,
112 .hash_reg_file = 1,
113 .unbound_nonreg_file = 1,
114 .pollout = 1,
115 .plug = 1,
116 .audit_skip = 1,
117 .ioprio = 1,
118 .iopoll = 1,
119 .iopoll_queue = 1,
120 .async_size = sizeof(struct io_async_rw),
121 .prep = io_prep_write_fixed,
122 .issue = io_write_fixed,
123 },
124 [IORING_OP_POLL_ADD] = {
125 .needs_file = 1,
126 .unbound_nonreg_file = 1,
127 .audit_skip = 1,
128 .prep = io_poll_add_prep,
129 .issue = io_poll_add,
130 },
131 [IORING_OP_POLL_REMOVE] = {
132 .audit_skip = 1,
133 .prep = io_poll_remove_prep,
134 .issue = io_poll_remove,
135 },
136 [IORING_OP_SYNC_FILE_RANGE] = {
137 .needs_file = 1,
138 .audit_skip = 1,
139 .prep = io_sfr_prep,
140 .issue = io_sync_file_range,
141 },
142 [IORING_OP_SENDMSG] = {
143 .needs_file = 1,
144 .unbound_nonreg_file = 1,
145 .pollout = 1,
146 .ioprio = 1,
147#if defined(CONFIG_NET)
148 .async_size = sizeof(struct io_async_msghdr),
149 .prep = io_sendmsg_prep,
150 .issue = io_sendmsg,
151#else
152 .prep = io_eopnotsupp_prep,
153#endif
154 },
155 [IORING_OP_RECVMSG] = {
156 .needs_file = 1,
157 .unbound_nonreg_file = 1,
158 .pollin = 1,
159 .buffer_select = 1,
160 .ioprio = 1,
161#if defined(CONFIG_NET)
162 .async_size = sizeof(struct io_async_msghdr),
163 .prep = io_recvmsg_prep,
164 .issue = io_recvmsg,
165#else
166 .prep = io_eopnotsupp_prep,
167#endif
168 },
169 [IORING_OP_TIMEOUT] = {
170 .audit_skip = 1,
171 .async_size = sizeof(struct io_timeout_data),
172 .prep = io_timeout_prep,
173 .issue = io_timeout,
174 },
175 [IORING_OP_TIMEOUT_REMOVE] = {
176 /* used by timeout updates' prep() */
177 .audit_skip = 1,
178 .prep = io_timeout_remove_prep,
179 .issue = io_timeout_remove,
180 },
181 [IORING_OP_ACCEPT] = {
182 .needs_file = 1,
183 .unbound_nonreg_file = 1,
184 .pollin = 1,
185 .poll_exclusive = 1,
186 .ioprio = 1, /* used for flags */
187#if defined(CONFIG_NET)
188 .prep = io_accept_prep,
189 .issue = io_accept,
190#else
191 .prep = io_eopnotsupp_prep,
192#endif
193 },
194 [IORING_OP_ASYNC_CANCEL] = {
195 .audit_skip = 1,
196 .prep = io_async_cancel_prep,
197 .issue = io_async_cancel,
198 },
199 [IORING_OP_LINK_TIMEOUT] = {
200 .audit_skip = 1,
201 .async_size = sizeof(struct io_timeout_data),
202 .prep = io_link_timeout_prep,
203 .issue = io_no_issue,
204 },
205 [IORING_OP_CONNECT] = {
206 .needs_file = 1,
207 .unbound_nonreg_file = 1,
208 .pollout = 1,
209#if defined(CONFIG_NET)
210 .async_size = sizeof(struct io_async_msghdr),
211 .prep = io_connect_prep,
212 .issue = io_connect,
213#else
214 .prep = io_eopnotsupp_prep,
215#endif
216 },
217 [IORING_OP_FALLOCATE] = {
218 .needs_file = 1,
219 .hash_reg_file = 1,
220 .prep = io_fallocate_prep,
221 .issue = io_fallocate,
222 },
223 [IORING_OP_OPENAT] = {
224 .prep = io_openat_prep,
225 .issue = io_openat,
226 },
227 [IORING_OP_CLOSE] = {
228 .prep = io_close_prep,
229 .issue = io_close,
230 },
231 [IORING_OP_FILES_UPDATE] = {
232 .audit_skip = 1,
233 .iopoll = 1,
234 .prep = io_files_update_prep,
235 .issue = io_files_update,
236 },
237 [IORING_OP_STATX] = {
238 .audit_skip = 1,
239 .prep = io_statx_prep,
240 .issue = io_statx,
241 },
242 [IORING_OP_READ] = {
243 .needs_file = 1,
244 .unbound_nonreg_file = 1,
245 .pollin = 1,
246 .buffer_select = 1,
247 .plug = 1,
248 .audit_skip = 1,
249 .ioprio = 1,
250 .iopoll = 1,
251 .iopoll_queue = 1,
252 .async_size = sizeof(struct io_async_rw),
253 .prep = io_prep_read,
254 .issue = io_read,
255 },
256 [IORING_OP_WRITE] = {
257 .needs_file = 1,
258 .hash_reg_file = 1,
259 .unbound_nonreg_file = 1,
260 .pollout = 1,
261 .plug = 1,
262 .audit_skip = 1,
263 .ioprio = 1,
264 .iopoll = 1,
265 .iopoll_queue = 1,
266 .async_size = sizeof(struct io_async_rw),
267 .prep = io_prep_write,
268 .issue = io_write,
269 },
270 [IORING_OP_FADVISE] = {
271 .needs_file = 1,
272 .audit_skip = 1,
273 .prep = io_fadvise_prep,
274 .issue = io_fadvise,
275 },
276 [IORING_OP_MADVISE] = {
277 .audit_skip = 1,
278 .prep = io_madvise_prep,
279 .issue = io_madvise,
280 },
281 [IORING_OP_SEND] = {
282 .needs_file = 1,
283 .unbound_nonreg_file = 1,
284 .pollout = 1,
285 .audit_skip = 1,
286 .ioprio = 1,
287 .buffer_select = 1,
288#if defined(CONFIG_NET)
289 .async_size = sizeof(struct io_async_msghdr),
290 .prep = io_sendmsg_prep,
291 .issue = io_send,
292#else
293 .prep = io_eopnotsupp_prep,
294#endif
295 },
296 [IORING_OP_RECV] = {
297 .needs_file = 1,
298 .unbound_nonreg_file = 1,
299 .pollin = 1,
300 .buffer_select = 1,
301 .audit_skip = 1,
302 .ioprio = 1,
303#if defined(CONFIG_NET)
304 .async_size = sizeof(struct io_async_msghdr),
305 .prep = io_recvmsg_prep,
306 .issue = io_recv,
307#else
308 .prep = io_eopnotsupp_prep,
309#endif
310 },
311 [IORING_OP_OPENAT2] = {
312 .prep = io_openat2_prep,
313 .issue = io_openat2,
314 },
315 [IORING_OP_EPOLL_CTL] = {
316 .unbound_nonreg_file = 1,
317 .audit_skip = 1,
318#if defined(CONFIG_EPOLL)
319 .prep = io_epoll_ctl_prep,
320 .issue = io_epoll_ctl,
321#else
322 .prep = io_eopnotsupp_prep,
323#endif
324 },
325 [IORING_OP_SPLICE] = {
326 .needs_file = 1,
327 .hash_reg_file = 1,
328 .unbound_nonreg_file = 1,
329 .audit_skip = 1,
330 .prep = io_splice_prep,
331 .issue = io_splice,
332 },
333 [IORING_OP_PROVIDE_BUFFERS] = {
334 .audit_skip = 1,
335 .iopoll = 1,
336 .prep = io_provide_buffers_prep,
337 .issue = io_manage_buffers_legacy,
338 },
339 [IORING_OP_REMOVE_BUFFERS] = {
340 .audit_skip = 1,
341 .iopoll = 1,
342 .prep = io_remove_buffers_prep,
343 .issue = io_manage_buffers_legacy,
344 },
345 [IORING_OP_TEE] = {
346 .needs_file = 1,
347 .hash_reg_file = 1,
348 .unbound_nonreg_file = 1,
349 .audit_skip = 1,
350 .prep = io_tee_prep,
351 .issue = io_tee,
352 },
353 [IORING_OP_SHUTDOWN] = {
354 .needs_file = 1,
355#if defined(CONFIG_NET)
356 .prep = io_shutdown_prep,
357 .issue = io_shutdown,
358#else
359 .prep = io_eopnotsupp_prep,
360#endif
361 },
362 [IORING_OP_RENAMEAT] = {
363 .prep = io_renameat_prep,
364 .issue = io_renameat,
365 },
366 [IORING_OP_UNLINKAT] = {
367 .prep = io_unlinkat_prep,
368 .issue = io_unlinkat,
369 },
370 [IORING_OP_MKDIRAT] = {
371 .prep = io_mkdirat_prep,
372 .issue = io_mkdirat,
373 },
374 [IORING_OP_SYMLINKAT] = {
375 .prep = io_symlinkat_prep,
376 .issue = io_symlinkat,
377 },
378 [IORING_OP_LINKAT] = {
379 .prep = io_linkat_prep,
380 .issue = io_linkat,
381 },
382 [IORING_OP_MSG_RING] = {
383 .needs_file = 1,
384 .iopoll = 1,
385 .prep = io_msg_ring_prep,
386 .issue = io_msg_ring,
387 },
388 [IORING_OP_FSETXATTR] = {
389 .needs_file = 1,
390 .prep = io_fsetxattr_prep,
391 .issue = io_fsetxattr,
392 },
393 [IORING_OP_SETXATTR] = {
394 .prep = io_setxattr_prep,
395 .issue = io_setxattr,
396 },
397 [IORING_OP_FGETXATTR] = {
398 .needs_file = 1,
399 .prep = io_fgetxattr_prep,
400 .issue = io_fgetxattr,
401 },
402 [IORING_OP_GETXATTR] = {
403 .prep = io_getxattr_prep,
404 .issue = io_getxattr,
405 },
406 [IORING_OP_SOCKET] = {
407 .audit_skip = 1,
408#if defined(CONFIG_NET)
409 .prep = io_socket_prep,
410 .issue = io_socket,
411#else
412 .prep = io_eopnotsupp_prep,
413#endif
414 },
415 [IORING_OP_URING_CMD] = {
416 .needs_file = 1,
417 .plug = 1,
418 .iopoll = 1,
419 .iopoll_queue = 1,
420 .async_size = sizeof(struct io_async_cmd),
421 .prep = io_uring_cmd_prep,
422 .issue = io_uring_cmd,
423 },
424 [IORING_OP_SEND_ZC] = {
425 .needs_file = 1,
426 .unbound_nonreg_file = 1,
427 .pollout = 1,
428 .audit_skip = 1,
429 .ioprio = 1,
430#if defined(CONFIG_NET)
431 .async_size = sizeof(struct io_async_msghdr),
432 .prep = io_send_zc_prep,
433 .issue = io_send_zc,
434#else
435 .prep = io_eopnotsupp_prep,
436#endif
437 },
438 [IORING_OP_SENDMSG_ZC] = {
439 .needs_file = 1,
440 .unbound_nonreg_file = 1,
441 .pollout = 1,
442 .ioprio = 1,
443#if defined(CONFIG_NET)
444 .async_size = sizeof(struct io_async_msghdr),
445 .prep = io_send_zc_prep,
446 .issue = io_sendmsg_zc,
447#else
448 .prep = io_eopnotsupp_prep,
449#endif
450 },
451 [IORING_OP_READ_MULTISHOT] = {
452 .needs_file = 1,
453 .unbound_nonreg_file = 1,
454 .pollin = 1,
455 .buffer_select = 1,
456 .audit_skip = 1,
457 .async_size = sizeof(struct io_async_rw),
458 .prep = io_read_mshot_prep,
459 .issue = io_read_mshot,
460 },
461 [IORING_OP_WAITID] = {
462 .async_size = sizeof(struct io_waitid_async),
463 .prep = io_waitid_prep,
464 .issue = io_waitid,
465 },
466 [IORING_OP_FUTEX_WAIT] = {
467#if defined(CONFIG_FUTEX)
468 .prep = io_futex_prep,
469 .issue = io_futex_wait,
470#else
471 .prep = io_eopnotsupp_prep,
472#endif
473 },
474 [IORING_OP_FUTEX_WAKE] = {
475#if defined(CONFIG_FUTEX)
476 .prep = io_futex_prep,
477 .issue = io_futex_wake,
478#else
479 .prep = io_eopnotsupp_prep,
480#endif
481 },
482 [IORING_OP_FUTEX_WAITV] = {
483#if defined(CONFIG_FUTEX)
484 .prep = io_futexv_prep,
485 .issue = io_futexv_wait,
486#else
487 .prep = io_eopnotsupp_prep,
488#endif
489 },
490 [IORING_OP_FIXED_FD_INSTALL] = {
491 .needs_file = 1,
492 .prep = io_install_fixed_fd_prep,
493 .issue = io_install_fixed_fd,
494 },
495 [IORING_OP_FTRUNCATE] = {
496 .needs_file = 1,
497 .hash_reg_file = 1,
498 .prep = io_ftruncate_prep,
499 .issue = io_ftruncate,
500 },
501 [IORING_OP_BIND] = {
502#if defined(CONFIG_NET)
503 .needs_file = 1,
504 .prep = io_bind_prep,
505 .issue = io_bind,
506 .async_size = sizeof(struct io_async_msghdr),
507#else
508 .prep = io_eopnotsupp_prep,
509#endif
510 },
511 [IORING_OP_LISTEN] = {
512#if defined(CONFIG_NET)
513 .needs_file = 1,
514 .prep = io_listen_prep,
515 .issue = io_listen,
516 .async_size = sizeof(struct io_async_msghdr),
517#else
518 .prep = io_eopnotsupp_prep,
519#endif
520 },
521 [IORING_OP_RECV_ZC] = {
522 .needs_file = 1,
523 .unbound_nonreg_file = 1,
524 .pollin = 1,
525 .ioprio = 1,
526#if defined(CONFIG_NET)
527 .prep = io_recvzc_prep,
528 .issue = io_recvzc,
529#else
530 .prep = io_eopnotsupp_prep,
531#endif
532 },
533 [IORING_OP_EPOLL_WAIT] = {
534 .needs_file = 1,
535 .audit_skip = 1,
536 .pollin = 1,
537#if defined(CONFIG_EPOLL)
538 .prep = io_epoll_wait_prep,
539 .issue = io_epoll_wait,
540#else
541 .prep = io_eopnotsupp_prep,
542#endif
543 },
544 [IORING_OP_READV_FIXED] = {
545 .needs_file = 1,
546 .unbound_nonreg_file = 1,
547 .pollin = 1,
548 .plug = 1,
549 .audit_skip = 1,
550 .ioprio = 1,
551 .iopoll = 1,
552 .iopoll_queue = 1,
553 .vectored = 1,
554 .async_size = sizeof(struct io_async_rw),
555 .prep = io_prep_readv_fixed,
556 .issue = io_read,
557 },
558 [IORING_OP_WRITEV_FIXED] = {
559 .needs_file = 1,
560 .hash_reg_file = 1,
561 .unbound_nonreg_file = 1,
562 .pollout = 1,
563 .plug = 1,
564 .audit_skip = 1,
565 .ioprio = 1,
566 .iopoll = 1,
567 .iopoll_queue = 1,
568 .vectored = 1,
569 .async_size = sizeof(struct io_async_rw),
570 .prep = io_prep_writev_fixed,
571 .issue = io_write,
572 },
573 [IORING_OP_PIPE] = {
574 .prep = io_pipe_prep,
575 .issue = io_pipe,
576 },
577};
578
579const struct io_cold_def io_cold_defs[] = {
580 [IORING_OP_NOP] = {
581 .name = "NOP",
582 },
583 [IORING_OP_READV] = {
584 .name = "READV",
585 .cleanup = io_readv_writev_cleanup,
586 .fail = io_rw_fail,
587 },
588 [IORING_OP_WRITEV] = {
589 .name = "WRITEV",
590 .cleanup = io_readv_writev_cleanup,
591 .fail = io_rw_fail,
592 },
593 [IORING_OP_FSYNC] = {
594 .name = "FSYNC",
595 },
596 [IORING_OP_READ_FIXED] = {
597 .name = "READ_FIXED",
598 .cleanup = io_readv_writev_cleanup,
599 .fail = io_rw_fail,
600 },
601 [IORING_OP_WRITE_FIXED] = {
602 .name = "WRITE_FIXED",
603 .cleanup = io_readv_writev_cleanup,
604 .fail = io_rw_fail,
605 },
606 [IORING_OP_POLL_ADD] = {
607 .name = "POLL_ADD",
608 },
609 [IORING_OP_POLL_REMOVE] = {
610 .name = "POLL_REMOVE",
611 },
612 [IORING_OP_SYNC_FILE_RANGE] = {
613 .name = "SYNC_FILE_RANGE",
614 },
615 [IORING_OP_SENDMSG] = {
616 .name = "SENDMSG",
617#if defined(CONFIG_NET)
618 .cleanup = io_sendmsg_recvmsg_cleanup,
619 .fail = io_sendrecv_fail,
620#endif
621 },
622 [IORING_OP_RECVMSG] = {
623 .name = "RECVMSG",
624#if defined(CONFIG_NET)
625 .cleanup = io_sendmsg_recvmsg_cleanup,
626 .fail = io_sendrecv_fail,
627#endif
628 },
629 [IORING_OP_TIMEOUT] = {
630 .name = "TIMEOUT",
631 },
632 [IORING_OP_TIMEOUT_REMOVE] = {
633 .name = "TIMEOUT_REMOVE",
634 },
635 [IORING_OP_ACCEPT] = {
636 .name = "ACCEPT",
637 },
638 [IORING_OP_ASYNC_CANCEL] = {
639 .name = "ASYNC_CANCEL",
640 },
641 [IORING_OP_LINK_TIMEOUT] = {
642 .name = "LINK_TIMEOUT",
643 },
644 [IORING_OP_CONNECT] = {
645 .name = "CONNECT",
646 },
647 [IORING_OP_FALLOCATE] = {
648 .name = "FALLOCATE",
649 },
650 [IORING_OP_OPENAT] = {
651 .name = "OPENAT",
652 .cleanup = io_open_cleanup,
653 },
654 [IORING_OP_CLOSE] = {
655 .name = "CLOSE",
656 },
657 [IORING_OP_FILES_UPDATE] = {
658 .name = "FILES_UPDATE",
659 },
660 [IORING_OP_STATX] = {
661 .name = "STATX",
662 .cleanup = io_statx_cleanup,
663 },
664 [IORING_OP_READ] = {
665 .name = "READ",
666 .cleanup = io_readv_writev_cleanup,
667 .fail = io_rw_fail,
668 },
669 [IORING_OP_WRITE] = {
670 .name = "WRITE",
671 .cleanup = io_readv_writev_cleanup,
672 .fail = io_rw_fail,
673 },
674 [IORING_OP_FADVISE] = {
675 .name = "FADVISE",
676 },
677 [IORING_OP_MADVISE] = {
678 .name = "MADVISE",
679 },
680 [IORING_OP_SEND] = {
681 .name = "SEND",
682#if defined(CONFIG_NET)
683 .cleanup = io_sendmsg_recvmsg_cleanup,
684 .fail = io_sendrecv_fail,
685#endif
686 },
687 [IORING_OP_RECV] = {
688 .name = "RECV",
689#if defined(CONFIG_NET)
690 .cleanup = io_sendmsg_recvmsg_cleanup,
691 .fail = io_sendrecv_fail,
692#endif
693 },
694 [IORING_OP_OPENAT2] = {
695 .name = "OPENAT2",
696 .cleanup = io_open_cleanup,
697 },
698 [IORING_OP_EPOLL_CTL] = {
699 .name = "EPOLL",
700 },
701 [IORING_OP_SPLICE] = {
702 .name = "SPLICE",
703 .cleanup = io_splice_cleanup,
704 },
705 [IORING_OP_PROVIDE_BUFFERS] = {
706 .name = "PROVIDE_BUFFERS",
707 },
708 [IORING_OP_REMOVE_BUFFERS] = {
709 .name = "REMOVE_BUFFERS",
710 },
711 [IORING_OP_TEE] = {
712 .name = "TEE",
713 .cleanup = io_splice_cleanup,
714 },
715 [IORING_OP_SHUTDOWN] = {
716 .name = "SHUTDOWN",
717 },
718 [IORING_OP_RENAMEAT] = {
719 .name = "RENAMEAT",
720 .cleanup = io_renameat_cleanup,
721 },
722 [IORING_OP_UNLINKAT] = {
723 .name = "UNLINKAT",
724 .cleanup = io_unlinkat_cleanup,
725 },
726 [IORING_OP_MKDIRAT] = {
727 .name = "MKDIRAT",
728 .cleanup = io_mkdirat_cleanup,
729 },
730 [IORING_OP_SYMLINKAT] = {
731 .name = "SYMLINKAT",
732 .cleanup = io_link_cleanup,
733 },
734 [IORING_OP_LINKAT] = {
735 .name = "LINKAT",
736 .cleanup = io_link_cleanup,
737 },
738 [IORING_OP_MSG_RING] = {
739 .name = "MSG_RING",
740 .cleanup = io_msg_ring_cleanup,
741 },
742 [IORING_OP_FSETXATTR] = {
743 .name = "FSETXATTR",
744 .cleanup = io_xattr_cleanup,
745 },
746 [IORING_OP_SETXATTR] = {
747 .name = "SETXATTR",
748 .cleanup = io_xattr_cleanup,
749 },
750 [IORING_OP_FGETXATTR] = {
751 .name = "FGETXATTR",
752 .cleanup = io_xattr_cleanup,
753 },
754 [IORING_OP_GETXATTR] = {
755 .name = "GETXATTR",
756 .cleanup = io_xattr_cleanup,
757 },
758 [IORING_OP_SOCKET] = {
759 .name = "SOCKET",
760 },
761 [IORING_OP_URING_CMD] = {
762 .name = "URING_CMD",
763 .cleanup = io_uring_cmd_cleanup,
764 },
765 [IORING_OP_SEND_ZC] = {
766 .name = "SEND_ZC",
767#if defined(CONFIG_NET)
768 .cleanup = io_send_zc_cleanup,
769 .fail = io_sendrecv_fail,
770#endif
771 },
772 [IORING_OP_SENDMSG_ZC] = {
773 .name = "SENDMSG_ZC",
774#if defined(CONFIG_NET)
775 .cleanup = io_send_zc_cleanup,
776 .fail = io_sendrecv_fail,
777#endif
778 },
779 [IORING_OP_READ_MULTISHOT] = {
780 .name = "READ_MULTISHOT",
781 .cleanup = io_readv_writev_cleanup,
782 },
783 [IORING_OP_WAITID] = {
784 .name = "WAITID",
785 },
786 [IORING_OP_FUTEX_WAIT] = {
787 .name = "FUTEX_WAIT",
788 },
789 [IORING_OP_FUTEX_WAKE] = {
790 .name = "FUTEX_WAKE",
791 },
792 [IORING_OP_FUTEX_WAITV] = {
793 .name = "FUTEX_WAITV",
794 },
795 [IORING_OP_FIXED_FD_INSTALL] = {
796 .name = "FIXED_FD_INSTALL",
797 },
798 [IORING_OP_FTRUNCATE] = {
799 .name = "FTRUNCATE",
800 },
801 [IORING_OP_BIND] = {
802 .name = "BIND",
803 },
804 [IORING_OP_LISTEN] = {
805 .name = "LISTEN",
806 },
807 [IORING_OP_RECV_ZC] = {
808 .name = "RECV_ZC",
809 },
810 [IORING_OP_EPOLL_WAIT] = {
811 .name = "EPOLL_WAIT",
812 },
813 [IORING_OP_READV_FIXED] = {
814 .name = "READV_FIXED",
815 .cleanup = io_readv_writev_cleanup,
816 .fail = io_rw_fail,
817 },
818 [IORING_OP_WRITEV_FIXED] = {
819 .name = "WRITEV_FIXED",
820 .cleanup = io_readv_writev_cleanup,
821 .fail = io_rw_fail,
822 },
823 [IORING_OP_PIPE] = {
824 .name = "PIPE",
825 },
826};
827
828const char *io_uring_get_opcode(u8 opcode)
829{
830 if (opcode < IORING_OP_LAST)
831 return io_cold_defs[opcode].name;
832 return "INVALID";
833}
834
835bool io_uring_op_supported(u8 opcode)
836{
837 if (opcode < IORING_OP_LAST &&
838 io_issue_defs[opcode].prep != io_eopnotsupp_prep)
839 return true;
840 return false;
841}
842
843void __init io_uring_optable_init(void)
844{
845 int i;
846
847 BUILD_BUG_ON(ARRAY_SIZE(io_cold_defs) != IORING_OP_LAST);
848 BUILD_BUG_ON(ARRAY_SIZE(io_issue_defs) != IORING_OP_LAST);
849
850 for (i = 0; i < ARRAY_SIZE(io_issue_defs); i++) {
851 BUG_ON(!io_issue_defs[i].prep);
852 if (io_issue_defs[i].prep != io_eopnotsupp_prep)
853 BUG_ON(!io_issue_defs[i].issue);
854 WARN_ON_ONCE(!io_cold_defs[i].name);
855 }
856}
Linux 6.x block layer and io_uring tree(s)