zv_suspend_lock in zvol_open()/zvol_release()
Acquire zv_suspend_lock on first open and last close only.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Boris Protopopov <boris.protopopov@actifio.com>
Closes #6342
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Description
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Boris Protopopov <bprotopopov@users.noreply.github.com> Authored on Aug 9 2017, 6:10 PM Brian Behlendorf <behlendorf1@llnl.gov> Committed on Aug 9 2017, 6:10 PM - Parents
- rG520faf5ddcb1: Crash in dbuf_evict_one with DTRACE_PROBE
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