linux-kernel - Re: [PATCH] Don't truncate /proc/PID/environ at 4096 characters

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Message-Id: <20070504173446.7ff0baef.dada1@cosmosbay.com>
Date:	Fri, 4 May 2007 17:34:46 +0200
From:	Eric Dumazet <dada1@...mosbay.com>
To:	James Pearson <james-p@...ing-picture.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Don't truncate /proc/PID/environ at 4096 characters

On Fri, 04 May 2007 15:30:57 +0100
James Pearson <james-p@...ing-picture.com> wrote:

> /proc/PID/environ currently truncates at 4096 characters, patch based on 
> the /proc/PID/mem code.
> 
> Signed-off-by: James Pearson <james-p@...ing-picture.com>
>

What about latency when reading one *big* environ ?

Dont we need some cond_resched() test in the loop ?

> +
> +static struct file_operations proc_environ_operations = {
> +       .read           = environ_read,
> +};
> +

Please use the const qualifier here :

static const struct file_operations ...

Thank you

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