lkml.org 
[lkml]   [2006]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/3] Create compat_sys_migrate_pages
On Fri, 27 Oct 2006, Stephen Rothwell wrote:

> No they aren't because they have compat routines that convert the bitmaps
> before calling the "normal" syscall. They, importantly, only use
> compat_alloc_user_space once each.

Ah...

> > Fixing get_nodes() to do the proper thing would fix all of these
> > without having to touch sys_migrate_pages or creating a compat_ function
> > (which usually is placed in kernel/compat.c)
>
> You need the compat_ version of the syscalls to know if you were called
> from a 32bit application in order to know if you may need to fixup the
> bitmaps that are passed from/to user mode.

The compat functions should be placed in kernel/compat.c next to
compat_sys_move_pages.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-10-27 15:27    [W:0.072 / U:0.064 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site