Re: XFS corruption during power-blackout

[David Masover <ninja@slaphack.com>]

Jörn Engel wrote:
> On Fri, 1 July 2005 14:58:39 -0500, David Masover wrote:
> 
>>Bryan Henderson wrote:
>>[...]
>>
>>>What you'd really like is to fsync a multi-file unit of work (transaction) 
>>>-- and not just among open files.  You'd like to open, write, and close 
>>>1000 files in a single transaction and then commit that transaction, with 
>>>no syncing due to timers in the meantime.  If you're really greedy, you'd 
>>>also ask for complete rollback if the system fails before the commit.
>>
>>Both of these are planned for Reiser4.  Or is it 4.1?
> 
> 
> Both are pretty trivial to implement for a tree-based fs like
> reiserfs.  Non-trivial is the user interface.  Not sure if sys_reiser
> is the answer to that.

It is intended to be, I think.  But sys_reiser has been pushed off to 
4.1, last I checked.

 From the general attitude here, I'm guessing that it should *not* be 
called sys_reiser.  We're already doing the meta-files interface for 
doing anything we want to do with reiser, which means sys_reiser 
currently only does two things:  allows simultaneous access to lots of 
small files efficiently (versus open()-ing each of them), and 
transactions.  While the two may or may not belong in the same system 
call, I don't believe they should be Reiser-specific.
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