linux-ext4 - Re: [PATCH 1/2] debugfs.c: the max length of debugfs argument is too short

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Date:	Mon, 29 Jul 2013 15:16:05 +0800
From:	Robert Yang <liezhi.yang@...driver.com>
To:	"Theodore Ts'o" <tytso@....edu>
CC:	<linux-ext4@...r.kernel.org>, <dvhart@...ux.intel.com>,
	<darrick.wong@...cle.com>
Subject: Re: [PATCH 1/2] debugfs.c: the max length of debugfs argument is
 too short


Hi Ted,

Thanks, I will update it and send a V3.

// Robert

On 07/29/2013 10:37 AM, Theodore Ts'o wrote:
> On Fri, Jul 26, 2013 at 06:30:56PM +0800, Robert Yang wrote:
>> The max length of debugfs argument is 256 which is too short, the
>> arguments are two paths, the PATH_MAX is 4096 according to
>> /usr/include/linux/limits.h, use 2048 (4096 / 2) is a reasonable value.
>
> I'd just use BUFSIZ (which is 8192 on Linux systems).  That's what the
> ss library uses, and if you might have two paths and PATH_MAX is 4096,
> 2048 could easily be too small.
>
> 					- Ted
>
>
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