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`Box` provides the simplest way to allocate memory for a generic type with one of the kernel's allocators, e.g. `Kmalloc`, `Vmalloc` or `KVmalloc`. In contrast to Rust's `Box` type, the kernel `Box` type considers the kernel's GFP flags for all appropriate functions, always reports allocation failures through `Result<_, AllocError>` and remains independent from unstable features. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20241004154149.93856-12-dakr@kernel.org [ Added backticks, fixed typos. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
42 lines
1 KiB
Rust
42 lines
1 KiB
Rust
// SPDX-License-Identifier: GPL-2.0
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//! The `kernel` prelude.
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//!
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//! These are the most common items used by Rust code in the kernel,
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//! intended to be imported by all Rust code, for convenience.
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//!
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//! # Examples
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//!
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//! ```
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//! use kernel::prelude::*;
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//! ```
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#[doc(no_inline)]
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pub use core::pin::Pin;
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pub use crate::alloc::{box_ext::BoxExt, flags::*, vec_ext::VecExt, KBox, KVBox, VBox};
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#[doc(no_inline)]
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pub use alloc::{boxed::Box, vec::Vec};
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#[doc(no_inline)]
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pub use macros::{module, pin_data, pinned_drop, vtable, Zeroable};
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pub use super::build_assert;
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// `super::std_vendor` is hidden, which makes the macro inline for some reason.
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#[doc(no_inline)]
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pub use super::dbg;
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pub use super::{pr_alert, pr_crit, pr_debug, pr_emerg, pr_err, pr_info, pr_notice, pr_warn};
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pub use super::{init, pin_init, try_init, try_pin_init};
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pub use super::static_assert;
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pub use super::error::{code::*, Error, Result};
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pub use super::{str::CStr, ThisModule};
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pub use super::init::{InPlaceInit, InPlaceWrite, Init, PinInit};
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pub use super::current;
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