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| author | Ming Lei <ming.lei@redhat.com> | 2018-12-17 02:46:00 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-17 03:53:47 +0100 |
| commit | cc56694f132a8f5fa9334e3afe990de8c3378866 (patch) | |
| tree | c67715ced5609fdcd34e95c3dcc24e6bc8ae494a /fs/mpage.c | |
| parent | block: update sysfs documentation (diff) | |
| download | linux-cc56694f132a8f5fa9334e3afe990de8c3378866.tar.xz linux-cc56694f132a8f5fa9334e3afe990de8c3378866.zip | |
blk-mq-debugfs: support rq_qos
blk-mq-debugfs has been proved as very helpful for debug some
tough issues, such as IO hang.
We have seen blk-wbt related IO hang several times, even inside
Red Hat BZ, there is such report not sovled yet, so this patch
adds support debugfs on rq_qos.
Cc: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Omar Sandoval <osandov@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/mpage.c')
0 files changed, 0 insertions, 0 deletions