1 files changed, 6 insertions, 5 deletions

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 297df45ffd0a..5f2f4c4d8fb0 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -91,6 +91,7 @@ struct hd_struct {
         sector_t start_sect;
         sector_t nr_sects;
         sector_t alignment_offset;
+        unsigned int discard_alignment;
         struct device __dev;
         struct kobject *holder_dir;
         int policy, partno;
@@ -100,7 +101,7 @@ struct hd_struct {
         unsigned long stamp;
         int in_flight[2];
 #ifdef  CONFIG_SMP
-        struct disk_stats *dkstats;
+        struct disk_stats __percpu *dkstats;
 #else
         struct disk_stats dkstats;
 #endif
@@ -108,7 +109,7 @@ struct hd_struct {
 };
 
 #define GENHD_FL_REMOVABLE                      1
-#define GENHD_FL_DRIVERFS                       2
+/* 2 is unused */
 #define GENHD_FL_MEDIA_CHANGE_NOTIFY            4
 #define GENHD_FL_CD                             8
 #define GENHD_FL_UP                             16
@@ -255,9 +256,9 @@ extern struct hd_struct *disk_map_sector_rcu(struct gendisk *disk,
 #define part_stat_read(part, field)                                     \
 ({                                                                      \
         typeof((part)->dkstats->field) res = 0;                         \
-        int i;                                                          \
-        for_each_possible_cpu(i)                                        \
-                res += per_cpu_ptr((part)->dkstats, i)->field;          \
+        unsigned int _cpu;                                              \
+        for_each_possible_cpu(_cpu)                                     \
+                res += per_cpu_ptr((part)->dkstats, _cpu)->field;       \
         res;                                                            \
 })