On Thu, 26 Feb 2026 07:10:12 -0800 Christoph Hellwig <[email protected]> wrote:
> the XOR library used for the RAID5 parity is a bit of a mess right now. > The main file sits in crypto/ despite not being cryptography and not > using the crypto API, with the generic implementations sitting in > include/asm-generic and the arch implementations sitting in an asm/ > header in theory. The latter doesn't work for many cases, so > architectures often build the code directly into the core kernel, or > create another module for the architecture code. > > Changes this to a single module in lib/ that also contains the > architecture optimizations, similar to the library work Eric Biggers > has done for the CRC and crypto libraries later. After that it changes > to better calling conventions that allow for smarter architecture > implementations (although none is contained here yet), and uses > static_call to avoid indirection function call overhead. Thanks, I'll add this to mm.git's mm-nonmm-unstable tree for some testing in linux-next.
