diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-04-04 15:39:54 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-04 18:30:39 +0300 |
| commit | 9eae8655f9cd2eeed99fb7a0d2bb22816c17e497 (patch) | |
| tree | 9839eb9739e972da6b62d363843f1fa95e48ea4b /io_uring/io_uring.c | |
| parent | 36b9818a5a84cb7c977fb723babca1c8d74f288f (diff) | |
| download | linux-9eae8655f9cd2eeed99fb7a0d2bb22816c17e497.tar.xz | |
io_uring/rsrc: cache struct io_rsrc_node
Add allocation cache for struct io_rsrc_node, it's always allocated and
put under ->uring_lock, so it doesn't need any extra synchronisation
around caches.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/252a9d9ef9654e6467af30fdc02f57c0118fb76e.1680576071.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 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index d6a0025afc31..419d6f42935f 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -310,6 +310,7 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p) INIT_LIST_HEAD(&ctx->sqd_list); INIT_LIST_HEAD(&ctx->cq_overflow_list); INIT_LIST_HEAD(&ctx->io_buffers_cache); + io_alloc_cache_init(&ctx->rsrc_node_cache, sizeof(struct io_rsrc_node)); io_alloc_cache_init(&ctx->apoll_cache, sizeof(struct async_poll)); io_alloc_cache_init(&ctx->netmsg_cache, sizeof(struct io_async_msghdr)); init_completion(&ctx->ref_comp); @@ -2790,6 +2791,11 @@ static void io_req_caches_free(struct io_ring_ctx *ctx) mutex_unlock(&ctx->uring_lock); } +static void io_rsrc_node_cache_free(struct io_cache_entry *entry) +{ + kfree(container_of(entry, struct io_rsrc_node, cache)); +} + static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx) { io_sq_thread_finish(ctx); @@ -2815,9 +2821,9 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx) /* there are no registered resources left, nobody uses it */ if (ctx->rsrc_node) - io_rsrc_node_destroy(ctx->rsrc_node); + io_rsrc_node_destroy(ctx, ctx->rsrc_node); if (ctx->rsrc_backup_node) - io_rsrc_node_destroy(ctx->rsrc_backup_node); + io_rsrc_node_destroy(ctx, ctx->rsrc_backup_node); WARN_ON_ONCE(!list_empty(&ctx->rsrc_ref_list)); @@ -2829,6 +2835,7 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx) #endif WARN_ON_ONCE(!list_empty(&ctx->ltimeout_list)); + io_alloc_cache_free(&ctx->rsrc_node_cache, io_rsrc_node_cache_free); if (ctx->mm_account) { mmdrop(ctx->mm_account); ctx->mm_account = NULL; |