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

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Date:	Sun, 29 Mar 2009 16:00:45 +0300
From:	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>
To:	Pavel Machek <pavel@....cz>
CC:	Artem Bityutskiy <dedekind@...dex.ru>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: replace() system call needed (was Re: EXT4-ish "fixes" in	UBIFS)

Pavel Machek wrote:
>>>> 2. create/write/rename leads to empty files
>>> ..but this should not be. If we want to make that explicit, we should
>>> provide "replace()" operation; where replace is rename that makes sure
>>> that source file is completely on media before commiting the rename.
>> Well, OK, we can fsync() before rename, we just need clean rules
>> for this, so that all Linux FSes would follow them. Would be nice
>> to have final agreement on all this stuff.
> 
> My proposal is 
> 
> rename() stays.

It stays and:

1. does _not_ fsync
2. has synchronous fsync added
3. stays and have asynchronous fsync added?

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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