From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Mon, 9 Jun 2014 23:36:51 +0000 (+0000)
Subject: target: Use complete_all for se_cmd->t_transport_stop_comp
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~26^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a95d6511303b848da45ee27b35018bb58087bdc6;p=pandora-kernel.git

target: Use complete_all for se_cmd->t_transport_stop_comp

This patch fixes a bug where multiple waiters on ->t_transport_stop_comp
occurs due to a concurrent ABORT_TASK and session reset both invoking
transport_wait_for_tasks(), while waiting for the associated se_cmd
descriptor backend processing to complete.

For this case, complete_all() should be invoked in order to wake up
both waiters in core_tmr_abort_task() + transport_generic_free_cmd()
process contexts.

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>
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