From: Yan, Zheng <zheng.yan@oracle.com>
Date: Fri, 15 Jan 2010 08:43:09 +0000 (+0000)
Subject: Btrfs: Fix race in btrfs_mark_extent_written
X-Git-Tag: v2.6.33-rc5~11^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c7d54ac87f338c479d9729e8392eca3f76e11e1;p=pandora-kernel.git

Btrfs: Fix race in btrfs_mark_extent_written

Fix bug reported by Johannes Hirte. The reason of that bug
is btrfs_del_items is called after btrfs_duplicate_item and
btrfs_del_items triggers tree balance. The fix is check that
case and call btrfs_search_slot when needed.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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