linux-kernel - Re: [PATCH v2 4/5] fat: eliminate orphaned inode number allocation

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Message-ID: <20120904183815.GA29369@fieldses.org>
Date:	Tue, 4 Sep 2012 14:38:15 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc:	Namjae Jeon <linkinjeon@...il.com>, akpm@...ux-foundation.org,
	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org,
	Namjae Jeon <namjae.jeon@...sung.com>,
	Ravishankar N <ravi.n1@...sung.com>,
	Amit Sahrawat <a.sahrawat@...sung.com>
Subject: Re: [PATCH v2 4/5] fat: eliminate orphaned inode number allocation

On Wed, Sep 05, 2012 at 02:07:40AM +0900, OGAWA Hirofumi wrote:
> OGAWA Hirofumi <hirofumi@...l.parknet.co.jp> writes:
> 
> > Namjae Jeon <linkinjeon@...il.com> writes:
> >
> >> From: Namjae Jeon <namjae.jeon@...sung.com>
> >>
> >> Maintain a list of inode(i_pos) numbers of orphaned inodes (i.e the
> >> inodes that have been unlinked but still having open file
> >> descriptors).At file/directory creation time, skip using such i_pos
> >> values.Removal of the i_pos from the list is done during inode eviction.
> >
> > What happens if the directory (has busy entries) was completely removed?
> >
> >
> > And Al's point is important for NFS too. If you want stable ino for NFS,
> > you never can't change it.
> 
> s/never can't/never can/

If vfat exports aren't fixable, maybe we should just remove that
feature?

I'm afraid that having unfixable half-working vfat exports is just an
attractive nuisance that causes users and developers to waste their
time....

--b.
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