2 files changed, 6 insertions, 2 deletions

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index f4fc576ed4c4..25fccd859fbf 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -24,6 +24,9 @@ extern const char linux_banner[];
 #define LONG_MAX        ((long)(~0UL>>1))
 #define LONG_MIN        (-LONG_MAX - 1)
 #define ULONG_MAX       (~0UL)
+#define LLONG_MAX       ((long long)(~0ULL>>1))
+#define LLONG_MIN       (-LLONG_MAX - 1)
+#define ULLONG_MAX      (~0ULL)
 
 #define STACK_MAGIC     0xdeadbeef
 
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 56f92fcbe94a..9e38b566d0e7 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -50,14 +50,15 @@ struct writeback_control {
          * a hint that the filesystem need only write out the pages inside that
          * byterange.  The byte at `end' is included in the writeout request.
          */
-        loff_t start;
-        loff_t end;
+        loff_t range_start;
+        loff_t range_end;
 
         unsigned nonblocking:1;         /* Don't get stuck on request queues */
         unsigned encountered_congestion:1; /* An output: a queue is full */
         unsigned for_kupdate:1;         /* A kupdate writeback */
         unsigned for_reclaim:1;         /* Invoked from the page allocator */
         unsigned for_writepages:1;      /* This is a writepages() call */
+        unsigned range_cyclic:1;        /* range_start is cyclic */
 };
 
 /*