linux-ext4 - Ordered mode rewrite patch

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Message-ID: <20080408121149.GB6901@duck.suse.cz>
Date:	Tue, 8 Apr 2008 14:11:49 +0200
From:	Jan Kara <jack@...e.cz>
To:	Nathan Grennan <jack@...nusx-1.org>,
	Marcelo Tosatti <mtosatti@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Ordered mode rewrite patch

  Hello,

  attached is a jumbo patch that reverses locking order of transaction
start and page lock in ext3 and rewrites handling of ordered data mode in
JBD and ext3. Note that the patch will break compilation of ext4 and OCFS2.
The patch survives LTP run on my test machine so it shouldn't eat your data
immediately but bugs are of course possible...
  I'm very interested in any results (both positive and negative) you could
get with it :). Thanks for testing it.

									Honza

PS: CCing also linux-ext4 list in case there are some other interested
testers. Next on my todo list is to port this for ext4...
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR

View attachment "ext3+jbd-2.6.25-ordered_mode.diff" of type "text/x-patch" (56828 bytes)