lkml.org 
[lkml]   [2020]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/9] kernel: add a PF_FORCE_COMPAT flag
On Sat, Sep 19, 2020 at 03:53:40PM -0700, Andy Lutomirski wrote:

> > It would not be a win - most of the syscalls don't give a damn
> > about 32bit vs. 64bit...
>
> Any reasonable implementation would optimize it out for syscalls that don’t care. Or it could be explicit:
>
> DEFINE_MULTIARCH_SYSCALL(...)

1) what would that look like?
2) have you counted the syscalls that do and do not need that?
3) how many of those realistically *can* be unified with their
compat counterparts? [hint: ioctl(2) cannot]

\
 
 \ /
  Last update: 2020-09-20 01:25    [W:0.132 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site