diff --git a/mm/kasan/kasan_test_rust.rs b/mm/kasan/kasan_test_rust.rs
index 47bcf033dd4f0671a28b8b42f4e08ca9b22215dc..5b34edf30e7244ff708a7cd8a8d4234029e9dacf 100644
--- a/mm/kasan/kasan_test_rust.rs
+++ b/mm/kasan/kasan_test_rust.rs
@@ -11,7 +11,7 @@ use kernel::prelude::*;
/// drop the vector, and touch it.
#[no_mangle]
pub extern "C" fn kasan_test_rust_uaf() -> u8 {
- let mut v: Vec<u8> = Vec::new();
+ let mut v: KVec<u8> = KVec::new();
for _ in 0..4096 {
v.push(0x42, GFP_KERNEL).unwrap();
}
diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs
index 66d4527f6c6f0befd18ca03df8b8a1d0a056150a..6053bc7a98d191b4dfcca8b6cfb0a12b3e93bfbe 100644
--- a/rust/kernel/str.rs
+++ b/rust/kernel/str.rs
@@ -2,8 +2,7 @@
//! String representations.
-use crate::alloc::{flags::*, vec_ext::VecExt, AllocError};
-use alloc::vec::Vec;
+use crate::alloc::{flags::*, AllocError, KVec};
use core::fmt::{self, Write};
use core::ops::{self, Deref, DerefMut, Index};
@@ -791,7 +790,7 @@ impl fmt::Write for Formatter {
/// assert_eq!(s.is_ok(), false);
/// ```
pub struct CString {
- buf: Vec<u8>,
+ buf: KVec<u8>,
}
impl CString {
@@ -804,7 +803,7 @@ impl CString {
let size = f.bytes_written();
// Allocate a vector with the required number of bytes, and write to it.
- let mut buf = <Vec<_> as VecExt<_>>::with_capacity(size, GFP_KERNEL)?;
+ let mut buf = KVec::with_capacity(size, GFP_KERNEL)?;
// SAFETY: The buffer stored in `buf` is at least of size `size` and is valid for writes.
let mut f = unsafe { Formatter::from_buffer(buf.as_mut_ptr(), size) };
f.write_fmt(args)?;
@@ -851,10 +850,9 @@ impl<'a> TryFrom<&'a CStr> for CString {
type Error = AllocError;
fn try_from(cstr: &'a CStr) -> Result<CString, AllocError> {
- let mut buf = Vec::new();
+ let mut buf = KVec::new();
- <Vec<_> as VecExt<_>>::extend_from_slice(&mut buf, cstr.as_bytes_with_nul(), GFP_KERNEL)
- .map_err(|_| AllocError)?;
+ buf.extend_from_slice(cstr.as_bytes_with_nul(), GFP_KERNEL)?;
// INVARIANT: The `CStr` and `CString` types have the same invariants for
// the string data, and we copied it over without changes.
diff --git a/rust/kernel/sync/locked_by.rs b/rust/kernel/sync/locked_by.rs
index ce2ee8d8786587c5f3686172693bd04ac7641366..a7b244675c2b96a36a6fe2e3ddd9a68e6ea01cb7 100644
--- a/rust/kernel/sync/locked_by.rs
+++ b/rust/kernel/sync/locked_by.rs
@@ -43,7 +43,7 @@ use core::{cell::UnsafeCell, mem::size_of, ptr};
/// struct InnerDirectory {
/// /// The sum of the bytes used by all files.
/// bytes_used: u64,
-/// _files: Vec<File>,
+/// _files: KVec<File>,
/// }
///
/// struct Directory {
diff --git a/rust/kernel/types.rs b/rust/kernel/types.rs
index 34f1b31753df1ce2a27a1bd73eb014db1cf57077..ced143600eb1b4de87ba4b9c6e3bc442a72bcee4 100644
--- a/rust/kernel/types.rs
+++ b/rust/kernel/types.rs
@@ -135,7 +135,7 @@ impl ForeignOwnable for () {
/// # use kernel::types::ScopeGuard;
/// fn example3(arg: bool) -> Result {
/// let mut vec =
-/// ScopeGuard::new_with_data(Vec::new(), |v| pr_info!("vec had {} elements\n", v.len()));
+/// ScopeGuard::new_with_data(KVec::new(), |v| pr_info!("vec had {} elements\n", v.len()));
///
/// vec.push(10u8, GFP_KERNEL)?;
/// if arg {
diff --git a/rust/kernel/uaccess.rs b/rust/kernel/uaccess.rs
index 0af243482eac9a3748e611064f792161459fc05d..2c953ba53c771ca86ed0ef529038fd34f4e9f95a 100644
--- a/rust/kernel/uaccess.rs
+++ b/rust/kernel/uaccess.rs
@@ -11,7 +11,6 @@ use crate::{
prelude::*,
transmute::{AsBytes, FromBytes},
};
-use alloc::vec::Vec;
use core::ffi::{c_ulong, c_void};
use core::mem::{size_of, MaybeUninit};
@@ -46,7 +45,6 @@ pub type UserPtr = usize;
/// every byte in the region.
///
/// ```no_run
-/// use alloc::vec::Vec;
/// use core::ffi::c_void;
/// use kernel::error::Result;
/// use kernel::uaccess::{UserPtr, UserSlice};
@@ -54,7 +52,7 @@ pub type UserPtr = usize;
/// fn bytes_add_one(uptr: UserPtr, len: usize) -> Result<()> {
/// let (read, mut write) = UserSlice::new(uptr, len).reader_writer();
///
-/// let mut buf = Vec::new();
+/// let mut buf = KVec::new();
/// read.read_all(&mut buf, GFP_KERNEL)?;
///
/// for b in &mut buf {
@@ -69,7 +67,6 @@ pub type UserPtr = usize;
/// Example illustrating a TOCTOU (time-of-check to time-of-use) bug.
///
/// ```no_run
-/// use alloc::vec::Vec;
/// use core::ffi::c_void;
/// use kernel::error::{code::EINVAL, Result};
/// use kernel::uaccess::{UserPtr, UserSlice};
@@ -78,21 +75,21 @@ pub type UserPtr = usize;
/// fn is_valid(uptr: UserPtr, len: usize) -> Result<bool> {
/// let read = UserSlice::new(uptr, len).reader();
///
-/// let mut buf = Vec::new();
+/// let mut buf = KVec::new();
/// read.read_all(&mut buf, GFP_KERNEL)?;
///
/// todo!()
/// }
///
/// /// Returns the bytes behind this user pointer if they are valid.
-/// fn get_bytes_if_valid(uptr: UserPtr, len: usize) -> Result<Vec<u8>> {
+/// fn get_bytes_if_valid(uptr: UserPtr, len: usize) -> Result<KVec<u8>> {
/// if !is_valid(uptr, len)? {
/// return Err(EINVAL);
/// }
///
/// let read = UserSlice::new(uptr, len).reader();
///
-/// let mut buf = Vec::new();
+/// let mut buf = KVec::new();
/// read.read_all(&mut buf, GFP_KERNEL)?;
///
/// // THIS IS A BUG! The bytes could have changed since we checked them.
@@ -130,7 +127,7 @@ impl UserSlice {
/// Reads the entirety of the user slice, appending it to the end of the provided buffer.
///
/// Fails with [`EFAULT`] if the read happens on a bad address.
- pub fn read_all(self, buf: &mut Vec<u8>, flags: Flags) -> Result {
+ pub fn read_all(self, buf: &mut KVec<u8>, flags: Flags) -> Result {
self.reader().read_all(buf, flags)
}
@@ -291,9 +288,9 @@ impl UserSliceReader {
/// Reads the entirety of the user slice, appending it to the end of the provided buffer.
///
/// Fails with [`EFAULT`] if the read happens on a bad address.
- pub fn read_all(mut self, buf: &mut Vec<u8>, flags: Flags) -> Result {
+ pub fn read_all(mut self, buf: &mut KVec<u8>, flags: Flags) -> Result {
let len = self.length;
- VecExt::<u8>::reserve(buf, len, flags)?;
+ buf.reserve(len, flags)?;
// The call to `try_reserve` was successful, so the spare capacity is at least `len` bytes
// long.
diff --git a/rust/macros/lib.rs b/rust/macros/lib.rs
index ab93111a048c900923560c6e6a1ee6a7217cf8de..8d4ac914b48bc88bdab1c64a1fc808fc45f5acb9 100644
--- a/rust/macros/lib.rs
+++ b/rust/macros/lib.rs
@@ -242,7 +242,7 @@ pub fn concat_idents(ts: TokenStream) -> TokenStream {
/// #[pin_data]
/// struct DriverData {
/// #[pin]
-/// queue: Mutex<Vec<Command>>,
+/// queue: Mutex<KVec<Command>>,
/// buf: KBox<[u8; 1024 * 1024]>,
/// }
/// ```
@@ -251,7 +251,7 @@ pub fn concat_idents(ts: TokenStream) -> TokenStream {
/// #[pin_data(PinnedDrop)]
/// struct DriverData {
/// #[pin]
-/// queue: Mutex<Vec<Command>>,
+/// queue: Mutex<KVec<Command>>,
/// buf: KBox<[u8; 1024 * 1024]>,
/// raw_info: *mut Info,
/// }
@@ -281,7 +281,7 @@ pub fn pin_data(inner: TokenStream, item: TokenStream) -> TokenStream {
/// #[pin_data(PinnedDrop)]
/// struct DriverData {
/// #[pin]
-/// queue: Mutex<Vec<Command>>,
+/// queue: Mutex<KVec<Command>>,
/// buf: KBox<[u8; 1024 * 1024]>,
/// raw_info: *mut Info,
/// }
diff --git a/samples/rust/rust_minimal.rs b/samples/rust/rust_minimal.rs
index 2a9eaab62d1ca73bfa004b61a18c647e3f15e851..4aaf117bf8e3c0cc77e188b1ad0708e3650a6654 100644
--- a/samples/rust/rust_minimal.rs
+++ b/samples/rust/rust_minimal.rs
@@ -13,7 +13,7 @@ module! {
}
struct RustMinimal {
- numbers: Vec<i32>,
+ numbers: KVec<i32>,
}
impl kernel::Module for RustMinimal {
@@ -21,7 +21,7 @@ impl kernel::Module for RustMinimal {
pr_info!("Rust minimal sample (init)\n");
pr_info!("Am I built-in? {}\n", !cfg!(MODULE));
- let mut numbers = Vec::new();
+ let mut numbers = KVec::new();
numbers.push(72, GFP_KERNEL)?;
numbers.push(108, GFP_KERNEL)?;
numbers.push(200, GFP_KERNEL)?;