linux-kernel - Re: replace() system call needed (was Re: EXT4-ish "fixes" in UBIFS)

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Message-ID: <20090401205201.GI17808@elf.ucw.cz>
Date:	Wed, 1 Apr 2009 22:52:01 +0200
From:	Pavel Machek <pavel@....cz>
To:	Theodore Tso <tytso@....edu>, Bodo Eggert <7eggert@....de>,
	Artem Bityutskiy <dedekind@...dex.ru>,
	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: replace() system call needed (was Re: EXT4-ish "fixes" in
	UBIFS)

On Tue 2009-03-31 20:06:57, Theodore Tso wrote:
> On Tue, Mar 31, 2009 at 11:27:33PM +0200, Bodo Eggert wrote:
> > This can be done using implicit logic:
> > 
> > ->E.g. on close(), mark inodes without being sync()ed as poisoned.
> > (I can think of more sophisticated logic, but ...)
> > ->On completing the inode with the delayed allocations, unpoison it.
> > ->Don't commit rename()s if the corresponding inode is poisoned.
> 
> Send us patches if you think it's that easy to do what you are
> proposing.   I assure it's not easy.

Well, implementing replace() syscall would be quite easy. Would you
want such a patch?
									Pavel

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