From 4e27e9d90b8dc7c7ddb3fa98f381c99093e07b5b Mon Sep 17 00:00:00 2001
From: Ruihan Li <lrh2000@pku.edu.cn>
Date: Tue, 2 Sep 2025 08:54:11 +0800
Subject: [PATCH] Use "I/O" instead "IO"

---
 kernel/src/util/iovec.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/src/util/iovec.rs b/kernel/src/util/iovec.rs
index ede3debca..8fdee645e 100644
--- a/kernel/src/util/iovec.rs
+++ b/kernel/src/util/iovec.rs
@@ -4,14 +4,14 @@ use ostd::mm::{Infallible, VmSpace};
 
 use crate::prelude::*;
 
-/// A kernel space IO vector.
+/// A kernel space I/O vector.
 #[derive(Debug, Clone, Copy)]
 struct IoVec {
     base: Vaddr,
     len: usize,
 }
 
-/// A user space IO vector.
+/// A user space I/O vector.
 ///
 /// The difference between `IoVec` and `UserIoVec`
 /// is that `UserIoVec` uses `isize` as the length type,
@@ -28,7 +28,7 @@ impl TryFrom<UserIoVec> for IoVec {
 
     fn try_from(value: UserIoVec) -> Result<Self> {
         if value.len < 0 {
-            return_errno_with_message!(Errno::EINVAL, "the length of IO vector cannot be negative");
+            return_errno_with_message!(Errno::EINVAL, "the I/O buffer length cannot be negative");
         }
 
         Ok(IoVec {