linux-ext4 - Re: [PATCH] Get rid of extents mount option

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Message-ID: <m3ejtjnc57.fsf@bzzz.home.net>
Date:	Sat, 07 Oct 2006 23:45:08 +0400
From:	Alex Tomas <alex@...sterfs.com>
To:	Theodore Tso <tytso@....edu>
Cc:	Dave Kleikamp <shaggy@...tin.ibm.com>,
	Andrew Morton <akpm@...l.org>,
	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] Get rid of extents mount option - try 2

>>>>> Theodore Tso (TT) writes:

 >> Also, do we update the superblock in every transaction that creates or
 >> deletes a file?  Otherwise, how do we guarantee the count is accurate
 >> after replaying the journal?

 TT> Yes, we do.  The number of free inodes has to be kept up-to-date,
 TT> after all, so the superblock is marked dirty and as being part of the
 TT> transaction.

actually, not any more. we use group descriptors to initialize
free inodes counter at mount time.

thanks, Alex
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