lkml.org 
[lkml]   [2003]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc)
On Sat, 23 Aug 2003 08:22:19 +0100 (BST)
Hugh Dickins <hugh@veritas.com> wrote:

> On 22 Aug 2003, James Bottomley wrote:
> >
> > I suppose if we had a way of telling if any of the i_mmap list members
> > were really MAP_SHARED semantics mappings, then we could alter our
> > flush_dcache_page() implementation to work.
>
> Good idea. It's VM_MAYSHARE you need to check for.

Nope, please see my other email for why all of these ideas
simply will not work. If the first fault-in of a MAP_PRIVATE
page is a read, it's just like a MAP_SHARED read-only page until
the first write occurs.
-
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: 2005-03-22 13:48    [W:0.100 / U:0.572 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site