From f18a1ee5ca4bfbd87d2b77a46e68c687079d4bd4 Mon Sep 17 00:00:00 2001
From: Lachlan McIlroy <lachlan@sgi.com>
Date: Fri, 27 Jun 2008 13:33:11 +1000
Subject: [PATCH] --- yaml --- r: 107453 b: refs/heads/master c:
 313b5c767a044c7a0db5e773cb7aea70383b2627 h: refs/heads/master i:   107451:
 1df608fbb4c777bcf6f91c494a36c0181ac56e42 v: v3

---
 [refs]                        |  2 +-
 trunk/fs/xfs/xfs_bmap_btree.c | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 16fac325cbe1..3ae71e7a712a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b877e3d37dda0154868a3c78f02f38a1ec14ce79
+refs/heads/master: 313b5c767a044c7a0db5e773cb7aea70383b2627
diff --git a/trunk/fs/xfs/xfs_bmap_btree.c b/trunk/fs/xfs/xfs_bmap_btree.c
index 1140cef4ba99..23efad29a5cd 100644
--- a/trunk/fs/xfs/xfs_bmap_btree.c
+++ b/trunk/fs/xfs/xfs_bmap_btree.c
@@ -1525,6 +1525,21 @@ xfs_bmbt_split(
 		XFS_BMBT_TRACE_CURSOR(cur, ERROR);
 		return error;
 	}
+	if (args.fsbno == NULLFSBLOCK && args.minleft) {
+		/*
+		 * Could not find an AG with enough free space to satisfy
+		 * a full btree split.  Try again without minleft and if
+		 * successful activate the lowspace algorithm.
+		 */
+		args.fsbno = 0;
+		args.type = XFS_ALLOCTYPE_FIRST_AG;
+		args.minleft = 0;
+		if ((error = xfs_alloc_vextent(&args))) {
+			XFS_BMBT_TRACE_CURSOR(cur, ERROR);
+			return error;
+		}
+		cur->bc_private.b.flist->xbf_low = 1;
+	}
 	if (args.fsbno == NULLFSBLOCK) {
 		XFS_BMBT_TRACE_CURSOR(cur, EXIT);
 		*stat = 0;