linux-next/rust/helpers/slab.c
Danilo Krummrich 8362c2608b rust: alloc: implement KVmalloc allocator
Implement `Allocator` for `KVmalloc`, an `Allocator` that tries to
allocate memory with `kmalloc` first and, on failure, falls back to
`vmalloc`.

All memory allocations made with `KVmalloc` end up in
`kvrealloc_noprof()`; all frees in `kvfree()`.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
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/20241004154149.93856-10-dakr@kernel.org
[ Reworded typo. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-10-15 22:56:59 +02:00

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C

// SPDX-License-Identifier: GPL-2.0
#include <linux/slab.h>
void * __must_check __realloc_size(2)
rust_helper_krealloc(const void *objp, size_t new_size, gfp_t flags)
{
return krealloc(objp, new_size, flags);
}
void * __must_check __realloc_size(2)
rust_helper_kvrealloc(const void *p, size_t size, gfp_t flags)
{
return kvrealloc(p, size, flags);
}