On 10/9/18 8:23 PM, Nicholas A. Bellinger wrote:
Short of reverting commit 00d909a107 for v4.19, target-core needs a
wait_event_t marco can be executed using TASK_UNINTERRUPTIBLE to
function correctly with existing fabric drivers that expect to run
with signals pending during session shutdown and active se_cmd I/O
quiesce.

The most notable is iscsi-target/iser-target, while ibmvscsi_tgt invokes
session shutdown logic from userspace via configfs attribute that could
also potentially have signals pending.

So go ahead and introduce wait_event_lock_irq_timeout() to achieve this,
and update + rename __wait_event_lock_irq_timeout() to make it accept
'state' as a parameter.

Fixes: 00d909a107 ("scsi: target: Make the session shutdown code also wait for 
commands that are being aborted")
Cc: Bart Van Assche <bvanass...@acm.org>
Cc: Mike Christie <mchri...@redhat.com>
Cc: Hannes Reinecke <h...@suse.com>
Cc: Christoph Hellwig <h...@lst.de>
Cc: Sagi Grimberg <s...@grimberg.me>
Cc: Bryant G. Ly <bryan...@linux.vnet.ibm.com>
Cc: Peter Zijlstra (Intel) <pet...@infradead.org>
Tested-by: Nicholas Bellinger <n...@linux-iscsi.org>
Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>

Reviewed-by: Bart Van Assche <bvanass...@acm.org>

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