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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-07-12 23:52:43 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-25 03:41:07 +0300 |
| commit | 06a5464be84e4ae48394d34441baf34bf9706827 (patch) | |
| tree | 97726fb3e90715c2a4077834806f712a20826790 /io_uring/opdef.c | |
| parent | bc24d6bd32df0be19df3d30e74be4ba56493c0e2 (diff) | |
| download | linux-06a5464be84e4ae48394d34441baf34bf9706827.tar.xz | |
io_uring: wire send zc request type
Add a new io_uring opcode IORING_OP_SENDZC. The main distinction from
IORING_OP_SEND is that the user should specify a notification slot
index in sqe::notification_idx and the buffers are safe to reuse only
when the used notification is flushed and completes.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a80387c6a68ce9cf99b3b6ef6f71068468761fb7.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/opdef.c')
| -rw-r--r-- | io_uring/opdef.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/io_uring/opdef.c b/io_uring/opdef.c index a7b84b43e6c2..7ab19bbf3126 100644 --- a/io_uring/opdef.c +++ b/io_uring/opdef.c @@ -470,6 +470,21 @@ const struct io_op_def io_op_defs[] = { .issue = io_uring_cmd, .prep_async = io_uring_cmd_prep_async, }, + [IORING_OP_SENDZC_NOTIF] = { + .name = "SENDZC_NOTIF", + .needs_file = 1, + .unbound_nonreg_file = 1, + .pollout = 1, + .audit_skip = 1, + .ioprio = 1, +#if defined(CONFIG_NET) + .prep = io_sendzc_prep, + .issue = io_sendzc, +#else + .prep = io_eopnotsupp_prep, +#endif + + }, }; const char *io_uring_get_opcode(u8 opcode) |