From 212c5927d56314e47b5c8e0f031e46f89be6fc33 Mon Sep 17 00:00:00 2001
From: Xie Zhihao <zhihao.xie@intel.com>
Date: Wed, 16 Nov 2022 14:31:38 +0000
Subject: [PATCH] [backport] network: limit write slice size

Signed-off-by: Xie Zhihao <zhihao.xie@intel.com>
---
 source/common/network/io_uring_socket_handle_impl.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/common/network/io_uring_socket_handle_impl.cc b/source/common/network/io_uring_socket_handle_impl.cc
index f11fc9a4eed07..013ea71ed9f3b 100644
--- a/source/common/network/io_uring_socket_handle_impl.cc
+++ b/source/common/network/io_uring_socket_handle_impl.cc
@@ -162,7 +162,8 @@ Api::IoCallUint64Result IoUringSocketHandleImpl::writev(const Buffer::RawSlice*
 }
 
 Api::IoCallUint64Result IoUringSocketHandleImpl::write(Buffer::Instance& buffer) {
-  Buffer::RawSliceVector slices = buffer.getRawSlices();
+  constexpr uint64_t MaxSlices = 16;
+  Buffer::RawSliceVector slices = buffer.getRawSlices(MaxSlices);
   auto result = writev(slices.begin(), slices.size());
   if (result.return_value_ > 0) {
     buffer.drain(static_cast<uint64_t>(result.return_value_));