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| author |   Ming Lei <ming.lei@redhat.com> | 2022-04-12 16:56:15 +0800 |
|---|---|---|
| committer |   Mike Snitzer <snitzer@kernel.org> | 2022-05-05 17:31:36 -0400 |
| commit | 0f14d60a023cc4fe68758e0fcdc0ce82a82dde7d (patch) | |
| tree | d343453a1de1088e8f8f1b53e0b975b1c0065af0 /scripts/generate_rust_analyzer.py | |
| parent | dm: don't grab target io reference in dm_zone_map_bio (diff) | |
| download | wireguard-linux-0f14d60a023cc4fe68758e0fcdc0ce82a82dde7d.tar.xz wireguard-linux-0f14d60a023cc4fe68758e0fcdc0ce82a82dde7d.zip | |
dm: improve dm_io reference counting
Currently each dm_io's reference counter is grabbed before calling
__map_bio(), this way isn't efficient since we can move this grabbing
to initialization time inside alloc_io().
Meantime it becomes typical async io reference counter model: one is
for submission side, the other is for completion side, and the io won't
be completed until both sides are done.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions