diff options
| author | Christoph Hellwig <[email protected]> | 2020-04-25 09:53:36 +0200 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2020-04-25 09:45:44 -0600 |
| commit | 8cf7961dab42c9177a556b719c15f5b9449c24d1 (patch) | |
| tree | cf0e7e5d0b7f6f0ee665629b61fc91cc56ed77c7 /tools/perf/scripts/python | |
| parent | ae3cc8d8ff061d3ffca96665685550e70a86472a (diff) | |
block: bypass ->make_request_fn for blk-mq drivers
Call blk_mq_make_request when no ->make_request_fn is set. This is
safe now that blk_alloc_queue always sets up the pointer for make_request
based drivers. This avoids an indirect call in the blk-mq driver I/O
fast path, which is rather expensive due to spectre mitigations.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions