diff options
Diffstat (limited to '')
-rw-r--r-- | rust/kernel/alloc/allocator.rs (renamed from rust/kernel/allocator.rs) | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/rust/kernel/allocator.rs b/rust/kernel/alloc/allocator.rs index 01ad139e19bc..229642960cd1 100644 --- a/rust/kernel/allocator.rs +++ b/rust/kernel/alloc/allocator.rs @@ -2,11 +2,10 @@ //! Allocator support. +use super::{flags::*, Flags}; use core::alloc::{GlobalAlloc, Layout}; use core::ptr; -use crate::bindings; - struct KernelAllocator; /// Calls `krealloc` with a proper size to alloc a new object aligned to `new_layout`'s alignment. @@ -15,7 +14,7 @@ struct KernelAllocator; /// /// - `ptr` can be either null or a pointer which has been allocated by this allocator. /// - `new_layout` must have a non-zero size. -unsafe fn krealloc_aligned(ptr: *mut u8, new_layout: Layout, flags: bindings::gfp_t) -> *mut u8 { +pub(crate) unsafe fn krealloc_aligned(ptr: *mut u8, new_layout: Layout, flags: Flags) -> *mut u8 { // Customized layouts from `Layout::from_size_align()` can have size < align, so pad first. let layout = new_layout.pad_to_align(); @@ -36,14 +35,14 @@ unsafe fn krealloc_aligned(ptr: *mut u8, new_layout: Layout, flags: bindings::gf // function safety requirement. // - `size` is greater than 0 since it's either a `layout.size()` (which cannot be zero // according to the function safety requirement) or a result from `next_power_of_two()`. - unsafe { bindings::krealloc(ptr as *const core::ffi::c_void, size, flags) as *mut u8 } + unsafe { bindings::krealloc(ptr as *const core::ffi::c_void, size, flags.0) as *mut u8 } } unsafe impl GlobalAlloc for KernelAllocator { unsafe fn alloc(&self, layout: Layout) -> *mut u8 { // SAFETY: `ptr::null_mut()` is null and `layout` has a non-zero size by the function safety // requirement. - unsafe { krealloc_aligned(ptr::null_mut(), layout, bindings::GFP_KERNEL) } + unsafe { krealloc_aligned(ptr::null_mut(), layout, GFP_KERNEL) } } unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) { @@ -64,19 +63,13 @@ unsafe impl GlobalAlloc for KernelAllocator { // requirement. // - the size of `layout` is not zero because `new_size` is not zero by the function safety // requirement. - unsafe { krealloc_aligned(ptr, layout, bindings::GFP_KERNEL) } + unsafe { krealloc_aligned(ptr, layout, GFP_KERNEL) } } unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 { // SAFETY: `ptr::null_mut()` is null and `layout` has a non-zero size by the function safety // requirement. - unsafe { - krealloc_aligned( - ptr::null_mut(), - layout, - bindings::GFP_KERNEL | bindings::__GFP_ZERO, - ) - } + unsafe { krealloc_aligned(ptr::null_mut(), layout, GFP_KERNEL | __GFP_ZERO) } } } |