linux-ext4 - Re: [PATCH 2/6] Return 32/64-bit dir name hash according to usage type

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Message-ID: <4E4B8724.4050101@itwm.fraunhofer.de>
Date:	Wed, 17 Aug 2011 11:17:24 +0200
From:	Bernd Schubert <bernd.schubert@...m.fraunhofer.de>
To:	Andreas Dilger <adilger@...mcloud.com>
CC:	linux-nfs@...r.kernel.org, linux-ext4@...r.kernel.org,
	hch@...radead.org, yong.fan@...mcloud.com,
	linux-fsdevel@...r.kernel.org, tytso@....edu
Subject: Re: [PATCH 2/6] Return 32/64-bit dir name hash according to usage
 type

On 08/16/2011 11:22 PM, Andreas Dilger wrote:
>> +static inline int is_32bit_api(void) +{ +#ifdef
>> HAVE_IS_COMPAT_TASK +	return is_compat_task();
>
> Looking more closely, this should actually be "#ifdef CONFIG_COMPAT"
> in the mainline kernel.
>
> HAVE_IS_COMPAT_TASK is from the Lustre configure script for detecting
> which kernel is_compat_task() was added in, since it appeared in some
> kernels at 2.6.17 but wasn't in most arches until 2.6.29.
>
> Sorry I didn't notice this earlier.
>

Oh no, I also should have noticed it :( I even made a small test program 
[1], but I then never executed it in 32bit mode :(


Cheers,
Bernd

[1]
http://www.pci.uni-heidelberg.de/tc/usr/bernd/downloads/test_seekdir/
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