lkml.org 
[lkml]   [2001]   [Feb]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC] framework for fpu usage in kernel
Date
From
> memcopy is a really generic function, and calling it saves the current
> fpu state into thread.i387.f{,x}save. IMHO that's wrong, memcopy must
> save into a local buffer like raid5 checksumming.

The mmx copy is only done in task context. There are a whole variety
of _horrible_ problems doing it in interrupt space so based on the
considerable number of problems with prior attempts to get it right on
IRQ and copyuser cases I didnt bother
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:13    [W:2.165 / U:0.416 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site