linux-kernel - Re: [patch] ext2: xip check fix

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Date:	Thu, 6 Dec 2007 19:22:25 -0800
From:	"Jared Hulbert" <jaredeh@...il.com>
To:	"Rob Landley" <rob@...dley.net>
Cc:	carsteno@...ibm.com, "Nick Piggin" <npiggin@...e.de>,
	"Christian Borntraeger" <borntraeger@...ibm.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	linux-fsdevel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Jens Axboe" <axboe@...nel.dk>
Subject: Re: [patch] ext2: xip check fix

> > I have'nt looked at it yet. I do appreciate it, I think it might
> > broaden the user-base of this feature which is up to now s390 only due
> > to the fact that the flash memory extensions have not been implemented
> > (yet?). And it enables testing xip on other platforms. The patch is on
> > my must-read list.
>
> query: which feature is currently s390 only?  (Execute In Place?)

I think so.  The filemap_xip.c functionality doesn't work for Flash
memory yet.  Flash memory doesn't have struct pages to back it up with
which this stuff depends on.
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