From: Brian King <brking@us.ibm.com>
To: linux-scsi@vger.kernel.org
Subject: Calling scsi_deactivate_tcq with active tags
Date: Tue, 27 Jul 2004 17:46:52 -0500 [thread overview]
Message-ID: <4106DB5C.6000607@us.ibm.com> (raw)
I'm in the process of adding the proper
scsi_activate_tcq/scsi_deactivate_tcq to the ipr driver and ran into a
problem. There doesn't seem to be any way to safely call
scsi_deactivate_tcq at runtime. I keep hitting the BUG(bqt->busy) check
in blk_queue_free_tags. Is there a way for a LLD to be able to call this
at runtime to a device that is being used? I tried doing a
scsi_device_quiesce/scsi_device_resume around the scsi_deactivate_tcq
call, but I still hit the problem.
--
Brian King
eServer Storage I/O
IBM Linux Technology Center
reply other threads:[~2004-07-27 22:46 UTC|newest]
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