diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-07-27 10:30:41 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-07-27 08:50:50 -0600 |
| commit | 14b146b688ad9593f5eee93d51a34d09a47e50b5 (patch) | |
| tree | 760b8eb09789bf4df3eec796829bae78b7c480fe /io_uring/io_uring.c | |
| parent | bd1a3783dd749012134b142b52e5704f7c142897 (diff) | |
io_uring: notification completion optimisationfor-5.20/io_uring-zerocopy-send-2022-07-29
We want to use all optimisations that we have for io_uring requests like
completion batching, memory caching and more but for zc notifications.
Fortunately, notification perfectly fit the request model so we can
overlay them onto struct io_kiocb and use all the infratructure.
Most of the fields of struct io_notif natively fits into io_kiocb, so we
replace struct io_notif with struct io_kiocb carrying struct
io_notif_data in the cmd cache line. Then we adapt io_alloc_notif() to
use io_alloc_req()/io_alloc_req_refill(), and kill leftovers of hand
coded caching. __io_notif_complete_tw() is converted to use io_uring's
tw infra.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9e010125175e80baf51f0ca63bdc7cc6a4a9fa56.1658913593.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 822819d0f607..b54218da075c 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -321,8 +321,6 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p) INIT_WQ_LIST(&ctx->locked_free_list); INIT_DELAYED_WORK(&ctx->fallback_work, io_fallback_req_func); INIT_WQ_LIST(&ctx->submit_state.compl_reqs); - INIT_LIST_HEAD(&ctx->notif_list); - INIT_LIST_HEAD(&ctx->notif_list_locked); return ctx; err: kfree(ctx->dummy_ubuf); @@ -2466,7 +2464,6 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx) WARN_ON_ONCE(!list_empty(&ctx->ltimeout_list)); WARN_ON_ONCE(ctx->notif_slots || ctx->nr_notif_slots); - io_notif_cache_purge(ctx); io_mem_free(ctx->rings); io_mem_free(ctx->sq_sqes); |