diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-11-16 08:14:46 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-12-06 09:16:56 +0100 |
| commit | ba0718a6d67130fd4bff664b86d2aa63fa49e241 (patch) | |
| tree | 3296ce83478a595298ff7c159353a060c8d3c70c /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | eea3e8b74aa1648fc96b739458d067a6e498c302 (diff) | |
nvme: don't call blk_mq_{,un}quiesce_tagset when ctrl->tagset is NULL
The NVMe drivers support a mode where no tagset is allocated for the I/O
queues and only the admin queue is usable. In that case ctrl->tagset is
NULL and we must not call the block per-tagset quiesce helpers that
dereference it.
Fixes: 98d81f0df70c ("nvme: use blk_mq_[un]quiesce_tagset")
Reported-by: Gerd Bayer <gbayer@linux.ibm.com>
Reported-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chao Leng <lengchao@huawei.com>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions