linux-kernel - Re: [PATCH 1/1] fix 2.6.24-rc1 nfs_file

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Date:	Wed, 12 Dec 2007 08:29:52 +0100
From:	"Berkhan, Enrik (GE Infra, Oil & Gas)" <enrik.berkhan@...com>
To:	"Trond Myklebust" <trond.myklebust@....uio.no>
Cc:	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] fix 2.6.24-rc1 nfs_file_mmap change for NOMMU

Trond Myklebust wrote:
> On Sun, 2007-12-09 at 19:52 +0100, Berkhan, Enrik (GE Infra, Oil & Gas)
> wrote:
>> - generic_file_mmap returns -ENOSYS for NOMMU systems; replicate this  
>> behaviour 
> 
> Why do that after going through the process of revalidating the inode
> etc.? Just replace nfs_file_mmap() with a function returning ENOSYS in
> the case of CONFIG_MMU.
> 
> Better still, in the case of CONFIG_MMU, instead of having an
> nfs_file_mmap(), just replace the .mmap field in nfs_file_operations
> with a call to generic_file_mmap().

I just tried to make it work without really knowing what I do :)

I have mailed another patch implementing your second suggestion (the system
still boots with nfsroot).

Enrik
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