lkml.org 
[lkml]   [2023]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [RFC PATCH 23/28] algif: Remove hash_sendpage*()
Date
Herbert Xu <herbert@gondor.apana.org.au> wrote:

> > I must be missing something, I think. What's particularly optimal about the
> > code in hash_sendpage() but not hash_sendmsg()? Is it that the former uses
> > finup/digest, but the latter ony does update+final?
>
> A lot of hardware hashes can't perform partial updates, so they
> will always fall back to software unless you use finup/digest.

Okay. Btw, how much of a hard limit is ALG_MAX_PAGES? Multipage folios can
exceed the current limit (16 pages, 64K) in size. Is it just to prevent too
much memory being pinned at once?

David

\
 
 \ /
  Last update: 2023-03-27 01:17    [W:0.063 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site