--- /dev/null
+From toddpoynor@google.com Tue Apr 9 09:08:53 2013
+From: Todd Poynor <toddpoynor@google.com>
+Date: Fri, 5 Apr 2013 16:38:53 -0700
+Subject: ext4: fixup 64-bit divides in 3.0-stable backport of upstream fix
+To: stable@vger.kernel.org
+Message-ID: <1365205133-28456-1-git-send-email-toddpoynor@google.com>
+
+From: Todd Poynor <toddpoynor@google.com>
+
+Replace C division operators with div64_u64 for divides introduced in:
+commit 503f4bdcc078e7abee273a85ce322de81b18a224
+ext4: use atomic64_t for the per-flexbg free_clusters count
+
+Specific to the 3.0-stable backport of the upstream patch.
+
+Signed-off-by: Todd Poynor <toddpoynor@google.com>
+Reviewed-by: "Theodore Ts'o" <tytso@mit.edu>
+Cc: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
+Cc: Lukas Czerner <lczerner@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/ext4/ialloc.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/fs/ext4/ialloc.c
++++ b/fs/ext4/ialloc.c
+@@ -22,6 +22,7 @@
+ #include <linux/random.h>
+ #include <linux/bitops.h>
+ #include <linux/blkdev.h>
++#include <linux/math64.h>
+ #include <asm/byteorder.h>
+
+ #include "ext4.h"
+@@ -356,7 +357,7 @@ static int find_group_flex(struct super_
+
+ find_close_to_parent:
+ flexbg_free_blocks = atomic64_read(&flex_group[best_flex].free_blocks);
+- flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex;
++ flex_freeb_ratio = div64_u64(flexbg_free_blocks * 100, blocks_per_flex);
+ if (atomic_read(&flex_group[best_flex].free_inodes) &&
+ flex_freeb_ratio > free_block_ratio)
+ goto found_flexbg;
+@@ -371,7 +372,7 @@ find_close_to_parent:
+ continue;
+
+ flexbg_free_blocks = atomic64_read(&flex_group[i].free_blocks);
+- flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex;
++ flex_freeb_ratio = div64_u64(flexbg_free_blocks * 100, blocks_per_flex);
+
+ if (flex_freeb_ratio > free_block_ratio &&
+ (atomic_read(&flex_group[i].free_inodes))) {