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| author |   Mike Snitzer <snitzer@redhat.com> | 2015-02-24 20:49:18 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-04-15 12:10:13 -0400 |
| commit | 9d1deb83d489364f8749a3a1ba1689efb07d94b0 (patch) | |
| tree | 30ddc2eaf3ce455b7b6cf5d7a1959bb538f430da /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | dm: only run the queue on completion if congested or no requests pending (diff) | |
| download | wireguard-linux-9d1deb83d489364f8749a3a1ba1689efb07d94b0.tar.xz wireguard-linux-9d1deb83d489364f8749a3a1ba1689efb07d94b0.zip | |
dm: don't schedule delayed run of the queue if nothing to do
In request-based DM's dm_request_fn(), if blk_peek_request() returns
NULL just return. Avoids unnecessary blk_delay_queue().
Reported-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions