From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 24 Apr 2008 13:22:51 +0000 (-0400)
Subject: Btrfs: Make sure nodes have enough room for a double split
X-Git-Tag: v2.6.29-rc1~27^2~9^2~55^2~56^2~30^2~205
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=1514794e4253cf4a32a2acc6de52f2527ca1bdce;p=cascardo%2Flinux.git

Btrfs: Make sure nodes have enough room for a double split

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

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 1c3d9d6fbdad..8ad8b5cc295a 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1146,7 +1146,7 @@ again:
 				slot -= 1;
 			p->slots[level] = slot;
 			if (ins_len > 0 && btrfs_header_nritems(b) >=
-			    BTRFS_NODEPTRS_PER_BLOCK(root) - 1) {
+			    BTRFS_NODEPTRS_PER_BLOCK(root) - 3) {
 				int sret = split_node(trans, root, p, level);
 				BUG_ON(sret > 0);
 				if (sret)