From: "David S. Miller" <davem@redhat.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: James.Bottomley@SteelEye.com, willy@debian.org,
linux-kernel@vger.kernel.org,
parisc-linux@lists.parisc-linux.org, drepper@redhat.com
Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc)
Date: Sat, 23 Aug 2003 14:44:36 -0700 [thread overview]
Message-ID: <20030823144436.63cf118f.davem@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0308230820020.3590-100000@localhost.localdomain>
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.
next prev parent reply other threads:[~2003-08-23 21:52 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-22 14:40 [parisc-linux] Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc) James Bottomley
2003-08-22 14:40 ` James Bottomley
2003-08-22 16:14 ` [parisc-linux] " David S. Miller
2003-08-22 16:14 ` David S. Miller
2003-08-22 16:34 ` [parisc-linux] " Matthew Wilcox
2003-08-22 16:39 ` David S. Miller
2003-08-22 16:39 ` David S. Miller
2003-08-22 17:41 ` Matthew Wilcox
2003-08-22 17:41 ` Matthew Wilcox
2003-08-22 17:36 ` David S. Miller
2003-08-22 17:36 ` David S. Miller
2003-08-22 18:01 ` David S. Miller
2003-08-22 18:34 ` Hugh Dickins
2003-08-22 18:34 ` Hugh Dickins
2003-08-22 18:31 ` David S. Miller
2003-08-22 18:56 ` James Bottomley
2003-08-22 18:56 ` James Bottomley
2003-08-22 19:19 ` David S. Miller
2003-08-22 19:19 ` David S. Miller
2003-08-22 22:27 ` James Bottomley
2003-08-22 22:27 ` James Bottomley
2003-08-22 22:41 ` David S. Miller
2003-08-22 22:41 ` David S. Miller
2003-08-23 1:09 ` James Bottomley
2003-08-23 7:22 ` Hugh Dickins
2003-08-23 15:59 ` James Bottomley
2003-08-23 15:59 ` James Bottomley
2003-08-23 21:44 ` David S. Miller [this message]
2003-08-23 21:44 ` David S. Miller
2003-08-23 7:22 ` Hugh Dickins
2003-08-23 21:43 ` David S. Miller
2003-08-23 22:21 ` James Bottomley
2003-08-23 22:51 ` David S. Miller
2003-08-23 23:01 ` James Bottomley
2003-08-23 23:01 ` James Bottomley
2003-08-23 22:51 ` David S. Miller
2003-08-23 22:53 ` David S. Miller
2003-08-23 22:53 ` David S. Miller
2003-08-23 23:11 ` James Bottomley
2003-08-24 0:22 ` David S. Miller
2003-08-24 5:17 ` James Bottomley
2003-08-24 5:23 ` David S. Miller
2003-08-24 16:54 ` James Bottomley
2003-08-24 16:54 ` James Bottomley
2003-08-24 0:22 ` David S. Miller
2003-08-23 23:11 ` James Bottomley
2003-08-23 22:21 ` James Bottomley
2003-08-23 21:43 ` David S. Miller
2003-08-23 1:09 ` James Bottomley
2003-08-22 18:31 ` David S. Miller
2003-08-22 18:41 ` James Bottomley
2003-08-22 19:02 ` Hugh Dickins
2003-08-22 19:02 ` Hugh Dickins
2003-08-22 19:09 ` Randolph Chung
2003-08-22 19:09 ` Randolph Chung
2003-08-22 18:41 ` James Bottomley
2003-08-22 18:01 ` David S. Miller
2003-08-22 16:42 ` Russell King
2003-08-22 16:42 ` Russell King
2003-08-22 16:39 ` David S. Miller
2003-08-22 16:39 ` David S. Miller
2003-08-22 16:34 ` Matthew Wilcox
2003-08-22 16:14 ` David S. Miller
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