Re: [PATCH 21/25] xor: add a better public API

Christoph Hellwig <[email protected]>
Newsgroups org.kernel.vger.sparclinux,dev.linux.lists.loongarch,org.infradead.lists.linux-riscv,org.infradead.lists.linux-um,org.kernel.vger.linux-alpha,org.kernel.vger.linux-arch,org.kernel.vger.linux-btrfs,org.kernel.vger.linux-crypto,org.kernel.vger.linux-kernel,org.kernel.vger.linux-raid,org.kernel.vger.linux-s390,org.ozlabs.lists.linuxppc-dev
Message-ID <[email protected]> 
On Fri, Feb 27, 2026 at 10:50:38PM -0800, Eric Biggers wrote:
> The alignment requirements on the vectors should be documented, as
> should which values of bytes are accepted.  It looks like, at the very
> least, the vectors have to be 32-byte aligned and the length has to be a
> nonzero multiple of 512 bytes.  But I didn't check every implementation.

That would match the original use case in the md raid code and also in
file system uses such as btrfs, yes.
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