kernel/linux.git/io_uring/msg_ring.h, branch v6.12.80

io_uring/msg_ring: add an alloc cache for io_kiocb entries

2024-06-24T14:39:55+00:00

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

io_uring: get rid of double locking

2022-12-07T13:47:13+00:00

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 Link: https://lore.kernel.org/r/a80ecc2bc99c3b3f2cf20015d618b7c51419a797.1670384893.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

io_uring: move msg_ring into its own file

2022-07-25T00:39:12+00:00

Signed-off-by: Jens Axboe