diff options
| author | Hongyu Jin <hongyu.jin@unisoc.com> | 2024-01-24 08:35:56 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2024-02-20 22:22:55 +0300 |
| commit | 5d8d40815314684af2593c075e6eee1afb42bb92 (patch) | |
| tree | eb5ad49cd4f8932d9716f3ca481164253f7c627f /tools/perf/scripts/python/stackcollapse.py | |
| parent | d95e2c34a3ca76861014cde4205934e434c27c45 (diff) | |
| download | linux-5d8d40815314684af2593c075e6eee1afb42bb92.tar.xz | |
dm crypt: Fix IO priority lost when queuing write bios
Since dm-crypt queues writes to a different kernel thread (workqueue),
the bios will dispatch from tasks with different io_context->ioprio
settings and blkcg than the submitting task, thus giving incorrect
ioprio to the io scheduler.
Get the original IO priority setting via struct dm_crypt_io::base_bio
and set this priority in the bio for write.
Link: https://lore.kernel.org/dm-devel/alpine.LRH.2.11.1612141049250.13402@mail.ewheeler.net
Signed-off-by: Hongyu Jin <hongyu.jin@unisoc.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions