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| author | Mikulas Patocka <mpatocka@redhat.com> | 2018-11-06 22:34:59 +0100 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-12-18 15:02:25 +0100 |
| commit | 24113d4878439baf1f23c1a33dfcc340fba66e97 (patch) | |
| tree | 8a5111ada71d026b290b7c009e79b28c99fbcdf5 /drivers/md/dm-rq.c | |
| parent | blk-mq: enable IO poll if .nr_queues of type poll > 0 (diff) | |
| download | linux-24113d4878439baf1f23c1a33dfcc340fba66e97.tar.xz linux-24113d4878439baf1f23c1a33dfcc340fba66e97.zip | |
dm: avoid indirect call in __dm_make_request
Indirect calls are inefficient because of retpolines that are used for
spectre workaround. This patch replaces an indirect call with a condition
(that can be predicted by the branch predictor).
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-rq.c')
0 files changed, 0 insertions, 0 deletions