diff options
| author | Jens Axboe <axboe@kernel.dk> | 2024-05-08 08:17:50 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-05-09 12:22:11 -0600 |
| commit | d3da8e98592693811c14c31f05380f378411fea1 (patch) | |
| tree | 885a341cad3532350cdab6c841a78c8d20425805 /include/uapi/linux/io_uring.h | |
| parent | 7dcc758cca432510f77b2fe1077be2314bc3785b (diff) | |
io_uring/net: add IORING_ACCEPT_POLL_FIRST flag
Similarly to how polling first is supported for receive, it makes sense
to provide the same for accept. An accept operation does a lot of
expensive setup, like allocating an fd, a socket/inode, etc. If no
connection request is already pending, this is wasted and will just be
cleaned up and freed, only to retry via the usual poll trigger.
Add IORING_ACCEPT_POLL_FIRST, which tells accept to only initiate the
accept request if poll says we have something to accept.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux/io_uring.h')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 4a645d15516f..6dbac55f8686 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -380,6 +380,7 @@ enum io_uring_op { */ #define IORING_ACCEPT_MULTISHOT (1U << 0) #define IORING_ACCEPT_DONTWAIT (1U << 1) +#define IORING_ACCEPT_POLL_FIRST (1U << 2) /* * IORING_OP_MSG_RING command types, stored in sqe->addr |