diff --git a/debian/changelog b/debian/changelog
index 0edc05813..ba1849ba5 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -9,6 +9,9 @@ linux (3.14.12-2) UNRELEASED; urgency=medium
   * [mips,mipsel] Add a debconf note to warn users that they have to
     configure the system bootloader to load initramfs.
 
+  [ Ben Hutchings ]
+  * writeback: Fix ABI change in 3.14.10 (Closes: #754902)
+
  -- Ian Campbell <ijc@hellion.org.uk>  Sat, 12 Jul 2014 21:12:17 +0100
 
 linux (3.14.12-1) unstable; urgency=medium
diff --git a/debian/config/defines b/debian/config/defines
index 431413009..554e5a9f1 100644
--- a/debian/config/defines
+++ b/debian/config/defines
@@ -24,8 +24,6 @@ ignore-changes:
  sock_diag_put_filterinfo
 # Can't build target modules OOT
  module:drivers/target/iscsi/iscsi_target_mod
-# Apparently not used OOT
- test_set_page_writeback
 
 [base]
 arches:
diff --git a/debian/patches/debian/writeback-fix-abi-change-in-3.14.10.patch b/debian/patches/debian/writeback-fix-abi-change-in-3.14.10.patch
new file mode 100644
index 000000000..705e454fa
--- /dev/null
+++ b/debian/patches/debian/writeback-fix-abi-change-in-3.14.10.patch
@@ -0,0 +1,29 @@
+From: Ben Hutchings <ben@decadent.org.uk>
+Date: Wed, 16 Jul 2014 20:50:04 +0100
+Subject: writeback: Fix ABI change in 3.14.10
+Bug-Debian: https://bugs.debian.org/754902
+Forwarded: not-needed
+
+Commit 1c8349a17137 ("ext4: fix data integrity sync in ordered mode")
+renamed test_set_page_writeback() to __test_set_page_writeback() and
+added a function-macro under the old name as a wrapper.
+test_set_page_writeback() was an exported function that is used by
+some OOT modules including openafs.  To keep old modules working, we
+need to provide a real function as well.
+
+--- a/mm/page-writeback.c
++++ b/mm/page-writeback.c
+@@ -2439,6 +2439,13 @@ int __test_set_page_writeback(struct pag
+ }
+ EXPORT_SYMBOL(__test_set_page_writeback);
+ 
++#undef test_set_page_writeback
++int test_set_page_writeback(struct page *page)
++{
++	return __test_set_page_writeback(page, false);
++}
++EXPORT_SYMBOL(test_set_page_writeback);
++
+ /*
+  * Return true if any of the pages in the mapping are marked with the
+  * passed tag.
diff --git a/debian/patches/series b/debian/patches/series
index 04dfec425..227460719 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -96,3 +96,4 @@ debian/irq-avoid-abi-change-in-3.14.10.patch
 debian/ptrace-avoid-abi-change-in-3.14.10.patch
 debian/trace-syscall-avoid-abi-change-in-3.14.11.patch
 debian/blkcg-avoid-abi-change-in-3.14.12.patch
+debian/writeback-fix-abi-change-in-3.14.10.patch