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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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2003c04b05
Support linked lists that can hold many different structs at once. This is generally done using trait objects. The main challenge is figuring what the struct is given only a pointer to the ListLinks. We do this by storing a pointer to the struct next to the ListLinks field. The container_of operation will then just read that pointer. When the type is a trait object, that pointer will be a fat pointer whose metadata is a vtable that tells you what kind of struct it is. Heterogeneous lists are heavily used by Rust Binder. There are a lot of so-called todo lists containing various events that need to be delivered to userspace next time userspace calls into the driver. And there are quite a few different todo item types: incoming transaction, changes to refcounts, death notifications, and more. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Signed-off-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20240814-linked-list-v5-9-f5f5e8075da0@google.com Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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| .. | ||
| alloc | ||
| block | ||
| init | ||
| list | ||
| net | ||
| sync | ||
| alloc.rs | ||
| block.rs | ||
| build_assert.rs | ||
| device.rs | ||
| error.rs | ||
| firmware.rs | ||
| init.rs | ||
| ioctl.rs | ||
| kunit.rs | ||
| lib.rs | ||
| list.rs | ||
| net.rs | ||
| page.rs | ||
| prelude.rs | ||
| print.rs | ||
| static_assert.rs | ||
| std_vendor.rs | ||
| str.rs | ||
| sync.rs | ||
| task.rs | ||
| time.rs | ||
| types.rs | ||
| uaccess.rs | ||
| workqueue.rs | ||