1 files changed, 39 insertions, 0 deletions
diff --git a/patches.suse/btrfs-REVERT-increase-the-global-block-reserve-estim.patch b/patches.suse/btrfs-REVERT-increase-the-global-block-reserve-estim.patch
new file mode 100644
index 0000000..91d27da
--- a/dev/null
+++ b/patches.suse/btrfs-REVERT-increase-the-global-block-reserve-estim.patch
@@ -0,0 +1,39 @@
+From: David Sterba <dsterba@suse.cz>
+Date: Sat, 24 Mar 2012 01:01:49 +0100
+Subject: [PATCH] Revert "Btrfs: increase the global block reserve estimates"
+Patch-mainline: 3.3
+
+This reverts commit 5500cdbe14d7435e04f66ff3cfb8ecd8b8e44ebf.
+
+Reason: causes early ENOSPC
+
+ Btrfs: increase the global block reserve estimates
+
+ When doing IO with large amounts of data fragmentation, the global block
+ reserve calulations are too low.  This increases them to avoid
+ ENOSPC crashes.
+
+ Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
+ Signed-off-by: Chris Mason <chris.mason@oracle.com>
+
+Signed-off-by: David Sterba <dsterba@suse.cz>
+---
+ fs/btrfs/extent-tree.c |    2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
+index 37e0a80..f6f584f 100644
+--- a/fs/btrfs/extent-tree.c
++++ b/fs/btrfs/extent-tree.c
+@@ -4110,7 +4110,7 @@ static u64 calc_global_metadata_size(struct btrfs_fs_info *fs_info)
+ 	num_bytes += div64_u64(data_used + meta_used, 50);
+ 
+ 	if (num_bytes * 3 > meta_used)
+-		num_bytes = div64_u64(meta_used, 3) * 2;
++		num_bytes = div64_u64(meta_used, 3);
+ 
+ 	return ALIGN(num_bytes, fs_info->extent_root->leafsize << 10);
+ }
+-- 
+1.7.6.233.gd79bc
+