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`XArray` is an efficient sparse array of pointers. Add a Rust abstraction for this type. This implementation bounds the element type on `ForeignOwnable` and requires explicit locking for all operations. Future work may leverage RCU to enable lockless operation. Inspired-by: Maíra Canal <mcanal@igalia.com> Inspired-by: Asahi Lina <lina@asahilina.net> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Link: https://lore.kernel.org/r/20250423-rust-xarray-bindings-v19-2-83cdcf11c114@gmail.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
28 lines
448 B
C
28 lines
448 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/xarray.h>
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int rust_helper_xa_err(void *entry)
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{
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return xa_err(entry);
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}
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void rust_helper_xa_init_flags(struct xarray *xa, gfp_t flags)
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{
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return xa_init_flags(xa, flags);
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}
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int rust_helper_xa_trylock(struct xarray *xa)
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{
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return xa_trylock(xa);
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}
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void rust_helper_xa_lock(struct xarray *xa)
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{
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return xa_lock(xa);
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}
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void rust_helper_xa_unlock(struct xarray *xa)
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{
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return xa_unlock(xa);
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}
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