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authorKaren Xie <kxie@chelsio.com>2009-06-15 11:15:16 -0700
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-06-21 10:52:39 -0500
commit295ab1b54393aec064533fbc5b483844736ccbf0 (patch)
treed9debe6032b3705dfbfb32e518c953de85dc3977 /drivers/scsi/cxgb3i/cxgb3i_ddp.h
parentd11b6916961d6ec7d7215332cbbe9feec086721d (diff)
cxgb3i: use kref to track ddp usage
The iscsi ddp functionality could be used by multiple iscsi entities, add a refcnt to keep track of it, so we would not release it pre-maturely. Signed-off-by: Karen Xie <kxie@chelsio.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/cxgb3i/cxgb3i_ddp.h')
-rw-r--r--drivers/scsi/cxgb3i/cxgb3i_ddp.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/cxgb3i/cxgb3i_ddp.h b/drivers/scsi/cxgb3i/cxgb3i_ddp.h
index 0d296de7cf32..87dd56b422bf 100644
--- a/drivers/scsi/cxgb3i/cxgb3i_ddp.h
+++ b/drivers/scsi/cxgb3i/cxgb3i_ddp.h
@@ -54,6 +54,7 @@ struct cxgb3i_gather_list {
* struct cxgb3i_ddp_info - cxgb3i direct data placement for pdu payload
*
* @list: list head to link elements
+ * @refcnt: ref. count
* @tdev: pointer to t3cdev used by cxgb3 driver
* @max_txsz: max tx packet size for ddp
* @max_rxsz: max rx packet size for ddp
@@ -70,6 +71,7 @@ struct cxgb3i_gather_list {
*/
struct cxgb3i_ddp_info {
struct list_head list;
+ struct kref refcnt;
struct t3cdev *tdev;
struct pci_dev *pdev;
unsigned int max_txsz;