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17 August 2024, 15:42:30 UTC
Revision ebbe442183b7b8192c963266f1c89048fefc63a5 authored by Nicholas Bellinger on 02 March 2014, 22:51:12 UTC, committed by Nicholas Bellinger on 05 March 2014, 01:54:10 UTC 
iser-target: Fix command leak for tx_desc->comp_llnode_batch
 
This patch addresses a number of active I/O shutdown issues
related to isert_cmd descriptors being leaked that are part
of a completion interrupt coalescing batch.

This includes adding logic in isert_cq_tx_comp_err() to
drain any associated tx_desc->comp_llnode_batch, as well
as isert_cq_drain_comp_llist() to drain any associated
isert_conn->conn_comp_llist.

Also, set tx_desc->llnode_active in isert_init_send_wr()
in order to determine when work requests need to be skipped
in isert_cq_tx_work() exception path code.

Finally, update isert_init_send_wr() to only allow interrupt
coalescing when ISER_CONN_UP.

Acked-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org> #3.13+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
1 parent 9bb4ca6
History
Tip revision: ebbe442183b7b8192c963266f1c89048fefc63a5 authored by Nicholas Bellinger on 02 March 2014, 22:51:12 UTC
iser-target: Fix command leak for tx_desc->comp_llnode_batch
Tip revision: ebbe442
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