Alice Ryhl e7572e5dea rust: types: add NotThreadSafe ... This introduces a new marker type for types that shouldn't be thread safe. By adding a field of this type to a struct, it becomes non-Send and non-Sync, which means that it cannot be accessed in any way from threads other than the one it was created on. This is useful for APIs that require globals such as `current` to remain constant while the value exists. We update two existing users in the Kernel to use this helper: * `Task::current()` - moving the return type of this value to a different thread would not be safe as you can no longer be guaranteed that the `current` pointer remains valid. * Lock guards. Mutexes and spinlocks should be unlocked on the same thread as where they were locked, so we enforce this using the Send trait. There are also additional users in later patches of this patchset. See [1] and [2] for the discussion that led to the introduction of this patch. Link: https://lore.kernel.org/all/nFDPJFnzE9Q5cqY7FwSMByRH2OAn_BpI4H53NQfWIlN6I2qfmAqnkp2wRqn0XjMO65OyZY4h6P4K2nAGKJpAOSzksYXaiAK_FoH_8QbgBI4=@proton.me/ [1] Link: https://lore.kernel.org/all/nFDPJFnzE9Q5cqY7FwSMByRH2OAn_BpI4H53NQfWIlN6I2qfmAqnkp2wRqn0XjMO65OyZY4h6P4K2nAGKJpAOSzksYXaiAK_FoH_8QbgBI4=@proton.me/ [2] Suggested-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Trevor Gross <tmgross@umich.edu> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Reviewed-by: Björn Roy Baron <bjorn3_gh@protonmail.com> Reviewed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20240915-alice-file-v10-1-88484f7a3dcf@google.com Signed-off-by: Christian Brauner <brauner@kernel.org>		2024-09-30 13:02:27 +02:00
..
bindings	rust: sort blk includes in bindings_helper.h	2024-08-21 00:37:02 +02:00
helpers	rust: rbtree: add red-black tree implementation backed by the C version	2024-08-31 17:35:08 +02:00
kernel	rust: types: add NotThreadSafe	2024-09-30 13:02:27 +02:00
macros	kbuild: rust: replace proc macros dependency on core.o with the version text	2024-09-05 22:44:51 +02:00
uapi	rust: allow dead_code for never constructed bindings	2024-07-10 10:28:51 +02:00
.gitignore	rust: support running Rust documentation tests as KUnit ones	2023-07-19 09:32:53 -06:00
bindgen_parameters	rust: Ignore preserve-most functions	2023-12-13 01:09:55 +01:00
build_error.rs	rust: add build_error crate	2022-12-04 01:59:16 +01:00
compiler_builtins.rs	rust: add intrinsics to fix -Os builds	2024-08-10 00:05:10 +02:00
exports.c	rust: kbuild: auto generate helper exports	2024-08-19 11:09:02 +02:00
Makefile	kbuild: rust: replace proc macros dependency on core.o with the version text	2024-09-05 22:44:51 +02:00