3 Commits

Author	SHA1	Message	Date
Jens Axboe	50cf5f3842	io_uring/msg_ring: add an alloc cache for io_kiocb entries ... With slab accounting, allocating and freeing memory has considerable overhead. Add a basic alloc cache for the io_kiocb allocations that msg_ring needs to do. Unlike other caches, this one is used by the sender, grabbing it from the remote ring. When the remote ring gets the posted completion, it'll free it locally. Hence it is separately locked, using ctx->msg_lock. Signed-off-by: Jens Axboe <axboe@kernel.dk>	2024-06-24 08:39:55 -06:00
Pavel Begunkov	11373026f2	io_uring: get rid of double locking ... We don't need to take both uring_locks at once, msg_ring can be split in two parts, first getting a file from the filetable of the first ring and then installing it into the second one. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/a80ecc2bc99c3b3f2cf20015d618b7c51419a797.1670384893.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>	2022-12-07 06:47:13 -07:00
Jens Axboe	36404b09aa	io_uring: move msg_ring into its own file ... Signed-off-by: Jens Axboe <axboe@kernel.dk>	2022-07-24 18:39:12 -06:00