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authorNicholas Bellinger <nab@linux-iscsi.org>2014-06-10 08:03:54 +0400
committerNicholas Bellinger <nab@linux-iscsi.org>2014-06-10 08:20:57 +0400
commitbbc050488525e1ab1194c27355f63c66814385b8 (patch)
treee52941b8284958c1e147962ab901d19dca971f78 /drivers/target
parenta95d6511303b848da45ee27b35018bb58087bdc6 (diff)
downloadlinux-bbc050488525e1ab1194c27355f63c66814385b8.tar.xz
iscsi-target: Fix ABORT_TASK + connection reset iscsi_queue_req memory leak
This patch fixes a iscsi_queue_req memory leak when ABORT_TASK response has been queued by TFO->queue_tm_rsp() -> lio_queue_tm_rsp() after a long standing I/O completes, but the connection has already reset and waiting for cleanup to complete in iscsit_release_commands_from_conn() -> transport_generic_free_cmd() -> transport_wait_for_tasks() code. It moves iscsit_free_queue_reqs_for_conn() after the per-connection command list has been released, so that the associated se_cmd tag can be completed + released by target-core before freeing any remaining iscsi_queue_req memory for the connection generated by lio_queue_tm_rsp(). Cc: Thomas Glanzmann <thomas@glanzmann.de> Cc: Charalampos Pournaris <charpour@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/iscsi/iscsi_target.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 2396216dd146..e0d98344e4bd 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4231,8 +4231,6 @@ int iscsit_close_connection(
if (conn->conn_transport->iscsit_wait_conn)
conn->conn_transport->iscsit_wait_conn(conn);
- iscsit_free_queue_reqs_for_conn(conn);
-
/*
* During Connection recovery drop unacknowledged out of order
* commands for this connection, and prepare the other commands
@@ -4249,6 +4247,7 @@ int iscsit_close_connection(
iscsit_clear_ooo_cmdsns_for_conn(conn);
iscsit_release_commands_from_conn(conn);
}
+ iscsit_free_queue_reqs_for_conn(conn);
/*
* Handle decrementing session or connection usage count if