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| author |   Ming Lei <ming.lei@redhat.com> | 2024-02-23 15:55:39 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2024-02-28 18:47:08 -0700 |
| commit | 13fe8e6825e44129b6cbeee41d3012554bf8d687 (patch) | |
| tree | 7e105c3bdee74769f45a94251f52995f92e966ee /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | ublk: improve getting & putting ublk device (diff) | |
| download | wireguard-linux-13fe8e6825e44129b6cbeee41d3012554bf8d687.tar.xz wireguard-linux-13fe8e6825e44129b6cbeee41d3012554bf8d687.zip | |
ublk: add UBLK_CMD_DEL_DEV_ASYNC
The current command UBLK_CMD_DEL_DEV won't return until the device is
released, this way looks more reliable, but makes userspace more
difficult to implement, especially about orders: unmap command
buffer(which holds one ublkc reference), ublkc close,
io_uring_file_unregister, ublkb close.
Add UBLK_CMD_DEL_DEV_ASYNC so that device deletion won't wait release,
then userspace needn't worry about the above order. Actually both loop
and nbd is deleted in this async way.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20240223075539.89945-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions