diff options
| author | Vasu Dev <vasu.dev@intel.com> | 2011-09-27 21:38:08 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-10-02 12:56:50 -0500 |
| commit | e17b4af7c7a6f5c24b0e6b856bb45a1a22be75f5 (patch) | |
| tree | 19487ec0ae0599c2999368aec1c20b96e6021191 /drivers/scsi/libfc/fc_exch.c | |
| parent | 49a198898e889038c6601288cd2b0e037edada24 (diff) | |
[SCSI] libfc: cache align fc_exch_pool
fix holes and better cache aligned fields.
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>
Diffstat (limited to 'drivers/scsi/libfc/fc_exch.c')
| -rw-r--r-- | 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 01ff082dc34c..a78655b86cb7 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. |