diff --git a/btrfsprogs.changes b/btrfsprogs.changes
index b6764c7..b8e1327 100644
--- a/btrfsprogs.changes
+++ b/btrfsprogs.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Oct 25 15:58:46 UTC 2016 - jeffm@suse.com
+
+- Add ability to provide site specific defaults for mkfs (FATE#320615).
+  * Only used for SLES11 defaults.
+- Added patch mkfs-default-features.patch
+
 -------------------------------------------------------------------
 Tue Oct 18 00:00:00 CEST 2016 - dsterba@suse.cz
 
diff --git a/btrfsprogs.spec b/btrfsprogs.spec
index 4624054..92fb5ec 100644
--- a/btrfsprogs.spec
+++ b/btrfsprogs.spec
@@ -40,12 +40,14 @@ Source:         https://www.kernel.org/pub/linux/kernel/people/kdave/btrfs-progs
 # support for mkinitrd in < 13.1
 Source1:        boot-btrfs.sh
 Source4:        setup-btrfs.sh
+Source5:        sles11-defaults.h
 
 Patch163:       0163-btrfs-progs-fsck-fix-segfault.patch
 Patch167:       0167-Btrfs-progs-make-find_and_setup_root-return-an-error.patch
 Patch168:       0168-Btrfs-progs-don-t-bug-out-if-we-can-t-find-the-last-.patch
 
 Patch1000:      local-version-override.patch
+Patch1001:      mkfs-default-features.patch
 
 BuildRequires:  asciidoc
 BuildRequires:  autoconf
@@ -141,9 +143,15 @@ thing.
 %patch167 -p1
 %patch168 -p1
 %patch1000 -p1
+%patch1001 -p1
 
 %build
 ./autogen.sh
+%if 0%{?suse_version} == 1110
+cp %{SOURCE5} .
+export CFLAGS="%optflags -include sles11-defaults.h"
+%endif
+
 %configure
 make V=1 %{?_smp_mflags} all \
 %if %build_static
diff --git a/mkfs-default-features.patch b/mkfs-default-features.patch
new file mode 100644
index 0000000..12c2af1
--- /dev/null
+++ b/mkfs-default-features.patch
@@ -0,0 +1,30 @@
+From: Jeff Mahoney <jeffm@suse.com>
+Subject: mkfs: allow site to override defaults
+Patch-mainline: Never, a real solution with a config file is required
+References: FATE#320615
+
+This is a simple method to allow us to set site defaults for mkfs by
+adding -include <includefile> to cflags.
+
+Signed-off-by: Jeff Mahoney <jeffm@suse.com>
+---
+ utils.h |    4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/utils.h
++++ b/utils.h
+@@ -28,10 +28,14 @@
+ 
+ #define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024)
+ #define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024)
++#ifndef BTRFS_MKFS_DEFAULT_NODE_SIZE
+ #define BTRFS_MKFS_DEFAULT_NODE_SIZE 16384
++#endif
++#ifndef BTRFS_MKFS_DEFAULT_FEATURES
+ #define BTRFS_MKFS_DEFAULT_FEATURES 				\
+ 		(BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF		\
+ 		| BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
++#endif
+ 
+ /*
+  * Avoid multi-device features (RAID56) and mixed block groups
diff --git a/sles11-defaults.h b/sles11-defaults.h
new file mode 100644
index 0000000..d6cedac
--- /dev/null
+++ b/sles11-defaults.h
@@ -0,0 +1,5 @@
+#ifndef _SLES11_DEFAULTS_H
+#define _SLES11_DEFAULTS_H
+#define BTRFS_MKFS_DEFAULT_NODE_SIZE sysconf(_SC_PAGESIZE)
+#define BTRFS_MKFS_DEFAULT_FEATURES BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF
+#endif