[SCSI] libfc: cache align struct fc_exch fields

cache aligned xid and ex_lock beside
removing holes.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 12 insertions, 15 deletions

diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 05e2583d8fa6..5d1a758e0595 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -406,35 +406,32 @@ struct fc_seq {
  *      sequence allocation
  */
 struct fc_exch {
+        spinlock_t          ex_lock;
+        atomic_t            ex_refcnt;
+        enum fc_class       class;
         struct fc_exch_mgr  *em;
         struct fc_exch_pool *pool;
-        u32                 state;
-        u16                 xid;
         struct list_head    ex_list;
-        spinlock_t          ex_lock;
-        atomic_t            ex_refcnt;
-        struct delayed_work timeout_work;
         struct fc_lport     *lp;
+        u32                 esb_stat;
+        u8                  state;
+        u8                  fh_type;
+        u8                  seq_id;
+        u8                  encaps;
+        u16                 xid;
         u16                 oxid;
         u16                 rxid;
         u32                 oid;
         u32                 sid;
         u32                 did;
-        u32                 esb_stat;
         u32                 r_a_tov;
-        u8                  seq_id;
-        u8                  encaps;
         u32                 f_ctl;
-        u8                  fh_type;
-        enum fc_class       class;
-        struct fc_seq       seq;
-
+        struct fc_seq       seq;
         void                (*resp)(struct fc_seq *, struct fc_frame *, void *);
         void                *arg;
-
         void                (*destructor)(struct fc_seq *, void *);
-
-};
+        struct delayed_work timeout_work;
+} ____cacheline_aligned_in_smp;
 #define fc_seq_exch(sp) container_of(sp, struct fc_exch, seq)