diff options
| author | Wedson Almeida Filho <walmeida@microsoft.com> | 2023-08-28 10:48:01 +0000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2023-09-25 09:46:41 -1000 |
| commit | a8321776ca0b13ec4d4fc817144fe1b3f6ba4625 (patch) | |
| tree | ae3da57a8aa504d6cea518e6306b8b42333f86cd /rust/kernel/lib.rs | |
| parent | 6465e260f48790807eef06b583b38ca9789b6072 (diff) | |
| download | linux-a8321776ca0b13ec4d4fc817144fe1b3f6ba4625.tar.gz linux-a8321776ca0b13ec4d4fc817144fe1b3f6ba4625.tar.bz2 linux-a8321776ca0b13ec4d4fc817144fe1b3f6ba4625.zip | |
rust: sync: add `Arc::{from_raw, into_raw}`
These methods can be used to turn an `Arc` into a raw pointer and back,
in a way that preserves the metadata for fat pointers.
This is done using the unstable ptr_metadata feature [1]. However, it
could also be done using the unstable pointer_byte_offsets feature [2],
which is likely to have a shorter path to stabilization than
ptr_metadata.
Link: https://github.com/rust-lang/rust/issues/81513 [1]
Link: https://github.com/rust-lang/rust/issues/96283 [2]
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Co-developed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Reviewed-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Andreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'rust/kernel/lib.rs')
| -rw-r--r-- | rust/kernel/lib.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index e8811700239a..9f75d6f3d07b 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -16,6 +16,7 @@ #![feature(coerce_unsized)] #![feature(dispatch_from_dyn)] #![feature(new_uninit)] +#![feature(ptr_metadata)] #![feature(receiver_trait)] #![feature(unsize)] |