From: Yan Zheng <zheng.yan@oracle.com>
Date: Wed, 17 Dec 2008 15:21:48 +0000 (-0500)
Subject: Btrfs: properly check free space for tree balancing
X-Git-Tag: v2.6.29-rc1~27^2~9^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87b29b208c6c38f3446d2de6ece946e2459052cf;p=pandora-kernel.git

Btrfs: properly check free space for tree balancing

btrfs_insert_empty_items takes the space needed by the btrfs_item
structure into account when calculating the required free space.

So the tree balancing code shouldn't add sizeof(struct btrfs_item)
to the size when checking the free space. This patch removes these
superfluous additions.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
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