[SCSI] lpfc 8.3.39: Reduced spinlock contention on SCSI buffer list
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 924ceaa..2d2261f 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -813,8 +813,10 @@
uint64_t bg_reftag_err_cnt;
/* fastpath list. */
- spinlock_t scsi_buf_list_lock;
- struct list_head lpfc_scsi_buf_list;
+ spinlock_t scsi_buf_list_get_lock; /* SCSI buf alloc list lock */
+ spinlock_t scsi_buf_list_put_lock; /* SCSI buf free list lock */
+ struct list_head lpfc_scsi_buf_list_get;
+ struct list_head lpfc_scsi_buf_list_put;
uint32_t total_scsi_bufs;
struct list_head lpfc_iocb_list;
uint32_t total_iocbq_bufs;