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authorNicholas Bellinger <nab@linux-iscsi.org>2011-11-02 03:33:16 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2011-11-02 15:58:30 +0000
commit88dd9e26d6d3e743f9c7e4562b94b2ad3c2994d3 (patch)
tree452154b4137170de74d4445c5fcbbf62ce2f04fd /include/target
parent5a4c8666c6d576f076a7c6824589cdbb984c0f84 (diff)
target: Make TFO->check_stop_free return free status
This patch converts target_core_fabric_ops->check_stop_free() usage in transport_cmd_check_stop() and associated fabric module usage to return '1' when the passed se_cmd has been released directly within ->check_stop_free(), or return '0' when the passed se_cmd has not been released. This addresses an issue where transport_cmd_finish_abort() -> transport_cmd_check_stop_to_fabric() was leaking descriptors during LUN_RESET for modules using ->check_stop_free(), but not directly releasing se_cmd in all cases. Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
Diffstat (limited to 'include/target')
-rw-r--r--include/target/target_core_fabric_ops.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h
index 126c675f4f14..04c591da0844 100644
--- a/include/target/target_core_fabric_ops.h
+++ b/include/target/target_core_fabric_ops.h
@@ -46,9 +46,12 @@ struct target_core_fabric_ops {
int (*new_cmd_map)(struct se_cmd *);
/*
* Optional to release struct se_cmd and fabric dependent allocated
- * I/O descriptor in transport_cmd_check_stop()
+ * I/O descriptor in transport_cmd_check_stop().
+ *
+ * Returning 1 will signal a descriptor has been released.
+ * Returning 0 will signal a descriptor has not been released.
*/
- void (*check_stop_free)(struct se_cmd *);
+ int (*check_stop_free)(struct se_cmd *);
void (*release_cmd)(struct se_cmd *);
/*
* Called with spin_lock_bh(struct se_portal_group->session_lock held.