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authorJens Axboe <axboe@kernel.dk>2019-04-19 13:38:09 -0600
committerJens Axboe <axboe@kernel.dk>2019-07-09 14:32:14 -0600
commitaa1fa28fc73ea6b740ee7b62bf3b07141883dbb8 (patch)
tree85963ae2cf72deda9bea41efd9492c94e9344b8b /include/uapi
parent0fa03c624d8fc9932d0f27c39a9deca6a37e0e17 (diff)
downloadlinux-aa1fa28fc73ea6b740ee7b62bf3b07141883dbb8.tar.bz2
io_uring: add support for recvmsg()
This is done through IORING_OP_RECVMSG. This opcode uses the same sqe->msg_flags that IORING_OP_SENDMSG added, and we pass in the msghdr struct in the sqe->addr field as well. We use MSG_DONTWAIT to force an inline fast path if recvmsg() doesn't block, and punt to async execution if it would have. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/io_uring.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index d74742d6269f..1e1652f25cc1 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -60,6 +60,7 @@ struct io_uring_sqe {
#define IORING_OP_POLL_REMOVE 7
#define IORING_OP_SYNC_FILE_RANGE 8
#define IORING_OP_SENDMSG 9
+#define IORING_OP_RECVMSG 10
/*
* sqe->fsync_flags