From: Vasu Dev <vasu.dev@xxxxxxxxx>
fix holes and better cache aligned fields.
Signed-off-by: Vasu Dev <vasu.dev@xxxxxxxxx>
Tested-by: Ross Brattain <ross.b.brattain@xxxxxxxxx>
Signed-off-by: Yi Zou <yi.zou@xxxxxxxxx>
---
drivers/scsi/libfc/fc_exch.c | 11 +++++------
1 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index d261e98..7c055fd 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -65,16 +65,15 @@ static struct workqueue_struct *fc_exch_workqueue;
* assigned range of exchanges to per cpu pool.
*/
struct fc_exch_pool {
+ spinlock_t lock;
+ struct list_head ex_list;
u16 next_index;
u16 total_exches;
/* two cache of free slot in exch array */
u16 left;
u16 right;
-
- spinlock_t lock;
- struct list_head ex_list;
-};
+} ____cacheline_aligned_in_smp;
/**
* struct fc_exch_mgr - The Exchange Manager (EM).
@@ -91,13 +90,13 @@ struct fc_exch_pool {
* It manages the allocation of exchange IDs.
*/
struct fc_exch_mgr {
+ struct fc_exch_pool *pool;
+ mempool_t *ep_pool;
enum fc_class class;
struct kref kref;
u16 min_xid;
u16 max_xid;
- mempool_t *ep_pool;
u16 pool_max_index;
- struct fc_exch_pool *pool;
/*
* currently exchange mgr stats are updated but not used.
--
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