linux-kernel - Re: [PATCH] Added CONFIG_VFAT_FS

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Message-ID: <4A45405A.1010404@zytor.com>
Date:	Fri, 26 Jun 2009 14:40:42 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	tridge@...ba.org
CC:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>, john.lanza@...ux.com,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>,
	Steve French <sfrench@...ibm.com>,
	Mingming Cao <cmm@...ibm.com>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCH] Added CONFIG_VFAT_FS_DUALNAMES option

tridge@...ba.org wrote:
> This is a new patch for VFAT long filename support, replacing the one
> that I posted last month. It retains a lot more functionality then the
> previous patch.
> 
> A FAQ will be posted immediately after this patch to answer the
> questions that were raised from the previous discussion.
> 

>From a purely technical perspective, there is a major advantage to this
patch: it creates a "pure VFAT" filesystem, without a spurious filename
alias which still occupies namespace, hiddenly, and therefore could
cause an ill-defined amount of problems.  UMSDOS at least had the
decency to not expose its shortnames to a longname-aware OS.

However, as such it really should be paired with a "don't even recognize
the shortname if a longname exists" option.

It's also questionable IMO if this shouldn't be another FAT superdriver,
just as we have VFAT, MS-DOS etc. we could have "purevfat".

	-hpa
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