From 63b10fc4874a014e22bc4c64e3d92b71180661fe Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Tue, 1 Apr 2008 11:21:32 -0400
Subject: [PATCH] Reorder the flags field in struct btrfs_header and record a
 flag on writeout

This allows detection of blocks that have already been written in the
running transaction so they can be recowed instead of modified again.
It is step one in trusting the transid field of the block pointers.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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