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io_uring/poll: shrink alloc cache size to 32

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This should be plenty, rather than the default of 128, and matches what
we have on the rsrc and futex side as well.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2024-03-21 07:53:07 -06:00
parent 414d0f45c3
commit da22bdf38b
2 changed files with 3 additions and 1 deletions
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2
io_uring/io_uring.c
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@ -308,7 +308,7 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
INIT_HLIST_HEAD(&ctx->io_buf_list);
ret = io_alloc_cache_init(&ctx->rsrc_node_cache, IO_NODE_ALLOC_CACHE_MAX,
sizeof(struct io_rsrc_node));
ret |= io_alloc_cache_init(&ctx->apoll_cache, IO_ALLOC_CACHE_MAX,
ret |= io_alloc_cache_init(&ctx->apoll_cache, IO_POLL_ALLOC_CACHE_MAX,
sizeof(struct async_poll));
ret |= io_alloc_cache_init(&ctx->netmsg_cache, IO_ALLOC_CACHE_MAX,
sizeof(struct io_async_msghdr));

2
io_uring/poll.h
View File

@ -1,5 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
#define IO_POLL_ALLOC_CACHE_MAX 32
enum {
IO_APOLL_OK,
IO_APOLL_ABORTED,