Pavel Begunkov 6746ee4c3a io_uring/cmd: expose iowq to cmds ... When an io_uring request needs blocking context we offload it to the io_uring's thread pool called io-wq. We can get there off ->uring_cmd by returning -EAGAIN, but there is no straightforward way of doing that from an asynchronous callback. Add a helper that would transfer a command to a blocking context. Note, we do an extra hop via task_work before io_queue_iowq(), that's a limitation of io_uring infra we have that can likely be lifted later if that would ever become a problem. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/f735f807d7c8ba50c9452c69dfe5d3e9e535037b.1726072086.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2024-09-11 10:44:10 -06:00
..
cmd.h	io_uring/cmd: expose iowq to cmds	2024-09-11 10:44:10 -06:00
net.h	io_uring: separate header for exported net bits	2024-04-15 08:10:26 -06:00