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authorMike Christie <michaelc@cs.wisc.edu>2008-05-21 15:54:18 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-12 08:22:22 -0500
commit913e5bf435617aa529919a4f7567f849f9f35f9f (patch)
treedb7357d78d7d6f20358d61bf88a8137ad044a5a5 /include/scsi
parent3cf7b233ffc45d4fc381221f74d24f10e692c4ea (diff)
[SCSI] libiscsi, iser, tcp: remove recv_lock
The recv lock was defined so the iscsi layer could block the recv path from processing IO during recovery. It turns out iser just set a lock to that pointer which was pointless. We now disconnect the transport connection before doing recovery so we do not need the recv lock. For iscsi_tcp we still stop the recv path incase older tools are being used. This patch also has iscsi_itt_to_ctask user grab the session lock and has the caller access the task with the lock or get a ref to it in case the target is broken and sends a tmf success response then sends data or a response for the command that was supposed to be affected bty the tmf. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/libiscsi.h8
1 files changed, 3 insertions, 5 deletions
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 5bf0187e752..5e75bb7f311 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -139,11 +139,6 @@ struct iscsi_conn {
void *dd_data; /* iscsi_transport data */
struct iscsi_session *session; /* parent session */
/*
- * LLDs should set this lock. It protects the transport recv
- * code
- */
- rwlock_t *recv_lock;
- /*
* conn_stop() flag: stop to recover, stop to terminate
*/
int stop_stage;
@@ -374,10 +369,13 @@ extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,
char *, uint32_t);
extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
char *, int);
+extern int __iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *,
+ char *, int);
extern int iscsi_verify_itt(struct iscsi_conn *, itt_t);
extern struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t);
extern void iscsi_requeue_task(struct iscsi_task *task);
extern void iscsi_put_task(struct iscsi_task *task);
+extern void __iscsi_get_task(struct iscsi_task *task);
/*
* generic helpers