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From: Nikita Danilov <Nikita@Namesys.COM>
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Date: Wed, 30 Oct 2002 12:35:56 +0300
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To: Jeff Garzik <jgarzik@pobox.com>
Cc: Hans Reiser <reiser@namesys.com>, torvalds@transmeta.com,
       landley@trommello.org, linux-kernel@vger.kernel.org
Subject: Re: 2.5 merge candidate list, final version.  (End of "crunch time"
 series.)
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Jeff Garzik writes:
 > Hans Reiser wrote:
 > 
 > > We are going to submit a patch appropriate for inclusion as an 
 > > experimental FS on Halloween.   I hope you will forgive our pushing 
 > > the limit timewise, it is not by choice, but the algorithms we used to 
 > > more than double reiserfs V3 performance were, quite frankly, hard to 
 > > code.
 > 
 > 
 > 
 > Does your merge change the core code at all?  Does it add new syscalls?
 > 

Here is a list of things reiser4 needs from the core:

 (1) export of generic_forget_inode()

 (2) export of page_cache_readahead()

 (3) export of remove_from_page_cache()

 (4) export of fsync_super()

 (5) patch to allow safe sharing of ->journal_info pointer in task_struct
     by several users

(1)-(4) are only necessary to compile reiser4 as module.

(5) is good not only for reiser4. Without it different file systems
using ->journal_info cannot "co-exist peacefully".

No new system calls are introduced (yet).

Nikita.

 > 
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