io_uring: mark cold functions
Attribute cold functions so compilers can optimise them for size. It shrinks the binary by 2.5-3% text data bss dec hex filename 90670 14002 8 104680 198e8 ./fs/io_uring.o 88053 14002 8 102063 18eaf ./fs/io_uring.o Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/b53d385f91dca45170b67d7f11c7abd787e821f6.1633373302.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
Jens Axboe
Родитель
37f0e767e1
Коммит
c072481ded
123
fs/io_uring.c
123
fs/io_uring.c
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@ -1230,7 +1230,7 @@ static inline void req_fail_link_node(struct io_kiocb *req, int res)
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req->result = res;
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}
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static void io_ring_ctx_ref_free(struct percpu_ref *ref)
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static __cold void io_ring_ctx_ref_free(struct percpu_ref *ref)
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{
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struct io_ring_ctx *ctx = container_of(ref, struct io_ring_ctx, refs);
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@ -1242,7 +1242,7 @@ static inline bool io_is_timeout_noseq(struct io_kiocb *req)
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return !req->timeout.off;
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}
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static void io_fallback_req_func(struct work_struct *work)
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static __cold void io_fallback_req_func(struct work_struct *work)
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{
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struct io_ring_ctx *ctx = container_of(work, struct io_ring_ctx,
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fallback_work.work);
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@ -1262,7 +1262,7 @@ static void io_fallback_req_func(struct work_struct *work)
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}
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static struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
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static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
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{
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struct io_ring_ctx *ctx;
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int hash_bits;
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@ -1361,7 +1361,7 @@ static inline bool io_req_ffs_set(struct io_kiocb *req)
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return IS_ENABLED(CONFIG_64BIT) && (req->flags & REQ_F_FIXED_FILE);
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}
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static void io_req_track_inflight(struct io_kiocb *req)
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static inline void io_req_track_inflight(struct io_kiocb *req)
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{
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if (!(req->flags & REQ_F_INFLIGHT)) {
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req->flags |= REQ_F_INFLIGHT;
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@ -1500,7 +1500,7 @@ static void io_kill_timeout(struct io_kiocb *req, int status)
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}
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}
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static void io_queue_deferred(struct io_ring_ctx *ctx)
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static __cold void io_queue_deferred(struct io_ring_ctx *ctx)
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{
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while (!list_empty(&ctx->defer_list)) {
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struct io_defer_entry *de = list_first_entry(&ctx->defer_list,
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@ -1514,7 +1514,7 @@ static void io_queue_deferred(struct io_ring_ctx *ctx)
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}
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}
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static void io_flush_timeouts(struct io_ring_ctx *ctx)
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static __cold void io_flush_timeouts(struct io_ring_ctx *ctx)
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__must_hold(&ctx->completion_lock)
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{
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u32 seq = ctx->cached_cq_tail - atomic_read(&ctx->cq_timeouts);
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@ -1547,7 +1547,7 @@ static void io_flush_timeouts(struct io_ring_ctx *ctx)
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spin_unlock_irq(&ctx->timeout_lock);
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}
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static void __io_commit_cqring_flush(struct io_ring_ctx *ctx)
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static __cold void __io_commit_cqring_flush(struct io_ring_ctx *ctx)
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{
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if (ctx->off_timeout_used)
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io_flush_timeouts(ctx);
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@ -1903,7 +1903,7 @@ static bool io_flush_cached_reqs(struct io_ring_ctx *ctx)
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* Because of that, io_alloc_req() should be called only under ->uring_lock
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* and with extra caution to not get a request that is still worked on.
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*/
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static bool __io_alloc_req_refill(struct io_ring_ctx *ctx)
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static __cold bool __io_alloc_req_refill(struct io_ring_ctx *ctx)
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__must_hold(&ctx->uring_lock)
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{
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struct io_submit_state *state = &ctx->submit_state;
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@ -1975,7 +1975,7 @@ static inline void io_dismantle_req(struct io_kiocb *req)
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}
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}
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static void __io_free_req(struct io_kiocb *req)
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static __cold void __io_free_req(struct io_kiocb *req)
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{
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struct io_ring_ctx *ctx = req->ctx;
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@ -2467,7 +2467,7 @@ static int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin)
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* We can't just wait for polled events to come to us, we have to actively
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* find and complete them.
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*/
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static void io_iopoll_try_reap_events(struct io_ring_ctx *ctx)
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static __cold void io_iopoll_try_reap_events(struct io_ring_ctx *ctx)
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{
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if (!(ctx->flags & IORING_SETUP_IOPOLL))
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return;
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@ -5632,8 +5632,8 @@ static bool io_poll_remove_one(struct io_kiocb *req)
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/*
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* Returns true if we found and killed one or more poll requests
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*/
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static bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk,
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bool cancel_all)
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static __cold bool io_poll_remove_all(struct io_ring_ctx *ctx,
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struct task_struct *tsk, bool cancel_all)
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{
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struct hlist_node *tmp;
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struct io_kiocb *req;
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@ -6425,7 +6425,7 @@ static u32 io_get_sequence(struct io_kiocb *req)
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return seq;
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}
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static void io_drain_req(struct io_kiocb *req)
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static __cold void io_drain_req(struct io_kiocb *req)
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{
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struct io_ring_ctx *ctx = req->ctx;
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struct io_defer_entry *de;
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@ -7305,7 +7305,7 @@ static int __io_sq_thread(struct io_ring_ctx *ctx, bool cap_entries)
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return ret;
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}
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static void io_sqd_update_thread_idle(struct io_sq_data *sqd)
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static __cold void io_sqd_update_thread_idle(struct io_sq_data *sqd)
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{
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struct io_ring_ctx *ctx;
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unsigned sq_thread_idle = 0;
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@ -7559,7 +7559,7 @@ static void io_free_page_table(void **table, size_t size)
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kfree(table);
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}
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static void **io_alloc_page_table(size_t size)
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static __cold void **io_alloc_page_table(size_t size)
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{
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unsigned i, nr_tables = DIV_ROUND_UP(size, PAGE_SIZE);
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size_t init_size = size;
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@ -7588,7 +7588,7 @@ static void io_rsrc_node_destroy(struct io_rsrc_node *ref_node)
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kfree(ref_node);
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}
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static void io_rsrc_node_ref_zero(struct percpu_ref *ref)
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static __cold void io_rsrc_node_ref_zero(struct percpu_ref *ref)
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{
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struct io_rsrc_node *node = container_of(ref, struct io_rsrc_node, refs);
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struct io_ring_ctx *ctx = node->rsrc_data->ctx;
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@ -7665,7 +7665,8 @@ static int io_rsrc_node_switch_start(struct io_ring_ctx *ctx)
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return ctx->rsrc_backup_node ? 0 : -ENOMEM;
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}
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static int io_rsrc_ref_quiesce(struct io_rsrc_data *data, struct io_ring_ctx *ctx)
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static __cold int io_rsrc_ref_quiesce(struct io_rsrc_data *data,
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struct io_ring_ctx *ctx)
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{
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int ret;
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@ -7721,9 +7722,9 @@ static void io_rsrc_data_free(struct io_rsrc_data *data)
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kfree(data);
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}
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static int io_rsrc_data_alloc(struct io_ring_ctx *ctx, rsrc_put_fn *do_put,
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u64 __user *utags, unsigned nr,
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struct io_rsrc_data **pdata)
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static __cold int io_rsrc_data_alloc(struct io_ring_ctx *ctx, rsrc_put_fn *do_put,
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u64 __user *utags, unsigned nr,
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struct io_rsrc_data **pdata)
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{
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struct io_rsrc_data *data;
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int ret = -ENOMEM;
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@ -8493,8 +8494,8 @@ static struct io_wq *io_init_wq_offload(struct io_ring_ctx *ctx,
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return io_wq_create(concurrency, &data);
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}
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static int io_uring_alloc_task_context(struct task_struct *task,
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struct io_ring_ctx *ctx)
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static __cold int io_uring_alloc_task_context(struct task_struct *task,
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struct io_ring_ctx *ctx)
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{
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struct io_uring_task *tctx;
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int ret;
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@ -8541,8 +8542,8 @@ void __io_uring_free(struct task_struct *tsk)
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tsk->io_uring = NULL;
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}
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static int io_sq_offload_create(struct io_ring_ctx *ctx,
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struct io_uring_params *p)
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static __cold int io_sq_offload_create(struct io_ring_ctx *ctx,
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struct io_uring_params *p)
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{
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int ret;
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@ -9181,7 +9182,7 @@ static void io_wait_rsrc_data(struct io_rsrc_data *data)
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wait_for_completion(&data->done);
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}
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static void io_ring_ctx_free(struct io_ring_ctx *ctx)
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static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx)
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{
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io_sq_thread_finish(ctx);
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@ -9290,7 +9291,7 @@ struct io_tctx_exit {
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struct io_ring_ctx *ctx;
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};
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static void io_tctx_exit_cb(struct callback_head *cb)
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static __cold void io_tctx_exit_cb(struct callback_head *cb)
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{
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struct io_uring_task *tctx = current->io_uring;
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struct io_tctx_exit *work;
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@ -9305,14 +9306,14 @@ static void io_tctx_exit_cb(struct callback_head *cb)
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complete(&work->completion);
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}
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static bool io_cancel_ctx_cb(struct io_wq_work *work, void *data)
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static __cold bool io_cancel_ctx_cb(struct io_wq_work *work, void *data)
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{
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struct io_kiocb *req = container_of(work, struct io_kiocb, work);
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return req->ctx == data;
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}
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static void io_ring_exit_work(struct work_struct *work)
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static __cold void io_ring_exit_work(struct work_struct *work)
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{
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struct io_ring_ctx *ctx = container_of(work, struct io_ring_ctx, exit_work);
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unsigned long timeout = jiffies + HZ * 60 * 5;
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@ -9383,8 +9384,8 @@ static void io_ring_exit_work(struct work_struct *work)
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}
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/* Returns true if we found and killed one or more timeouts */
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static bool io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk,
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bool cancel_all)
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static __cold bool io_kill_timeouts(struct io_ring_ctx *ctx,
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struct task_struct *tsk, bool cancel_all)
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{
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struct io_kiocb *req, *tmp;
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int canceled = 0;
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@ -9406,7 +9407,7 @@ static bool io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk,
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return canceled != 0;
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}
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static void io_ring_ctx_wait_and_kill(struct io_ring_ctx *ctx)
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static __cold void io_ring_ctx_wait_and_kill(struct io_ring_ctx *ctx)
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{
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unsigned long index;
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struct creds *creds;
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@ -9468,8 +9469,9 @@ static bool io_cancel_task_cb(struct io_wq_work *work, void *data)
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return ret;
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}
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static bool io_cancel_defer_files(struct io_ring_ctx *ctx,
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struct task_struct *task, bool cancel_all)
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static __cold bool io_cancel_defer_files(struct io_ring_ctx *ctx,
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struct task_struct *task,
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bool cancel_all)
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{
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struct io_defer_entry *de;
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LIST_HEAD(list);
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@ -9494,7 +9496,7 @@ static bool io_cancel_defer_files(struct io_ring_ctx *ctx,
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return true;
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}
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static bool io_uring_try_cancel_iowq(struct io_ring_ctx *ctx)
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static __cold bool io_uring_try_cancel_iowq(struct io_ring_ctx *ctx)
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{
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struct io_tctx_node *node;
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enum io_wq_cancel cret;
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@ -9518,9 +9520,9 @@ static bool io_uring_try_cancel_iowq(struct io_ring_ctx *ctx)
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return ret;
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}
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static void io_uring_try_cancel_requests(struct io_ring_ctx *ctx,
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struct task_struct *task,
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bool cancel_all)
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static __cold void io_uring_try_cancel_requests(struct io_ring_ctx *ctx,
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struct task_struct *task,
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bool cancel_all)
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{
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struct io_task_cancel cancel = { .task = task, .all = cancel_all, };
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struct io_uring_task *tctx = task ? task->io_uring : NULL;
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@ -9610,7 +9612,7 @@ static inline int io_uring_add_tctx_node(struct io_ring_ctx *ctx)
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/*
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* Remove this io_uring_file -> task mapping.
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*/
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static void io_uring_del_tctx_node(unsigned long index)
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static __cold void io_uring_del_tctx_node(unsigned long index)
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{
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struct io_uring_task *tctx = current->io_uring;
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struct io_tctx_node *node;
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@ -9633,7 +9635,7 @@ static void io_uring_del_tctx_node(unsigned long index)
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kfree(node);
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}
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static void io_uring_clean_tctx(struct io_uring_task *tctx)
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static __cold void io_uring_clean_tctx(struct io_uring_task *tctx)
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{
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struct io_wq *wq = tctx->io_wq;
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struct io_tctx_node *node;
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@ -9660,7 +9662,7 @@ static s64 tctx_inflight(struct io_uring_task *tctx, bool tracked)
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return percpu_counter_sum(&tctx->inflight);
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}
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static void io_uring_drop_tctx_refs(struct task_struct *task)
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static __cold void io_uring_drop_tctx_refs(struct task_struct *task)
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{
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struct io_uring_task *tctx = task->io_uring;
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unsigned int refs = tctx->cached_refs;
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@ -9676,7 +9678,8 @@ static void io_uring_drop_tctx_refs(struct task_struct *task)
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* Find any io_uring ctx that this task has registered or done IO on, and cancel
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* requests. @sqd should be not-null IIF it's an SQPOLL thread cancellation.
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*/
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static void io_uring_cancel_generic(bool cancel_all, struct io_sq_data *sqd)
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static __cold void io_uring_cancel_generic(bool cancel_all,
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struct io_sq_data *sqd)
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{
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struct io_uring_task *tctx = current->io_uring;
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struct io_ring_ctx *ctx;
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@ -9769,7 +9772,7 @@ static void *io_uring_validate_mmap_request(struct file *file,
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#ifdef CONFIG_MMU
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static int io_uring_mmap(struct file *file, struct vm_area_struct *vma)
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static __cold int io_uring_mmap(struct file *file, struct vm_area_struct *vma)
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{
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size_t sz = vma->vm_end - vma->vm_start;
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unsigned long pfn;
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@ -9954,7 +9957,7 @@ out_fput:
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}
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#ifdef CONFIG_PROC_FS
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static int io_uring_show_cred(struct seq_file *m, unsigned int id,
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static __cold int io_uring_show_cred(struct seq_file *m, unsigned int id,
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const struct cred *cred)
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{
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struct user_namespace *uns = seq_user_ns(m);
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@ -9986,7 +9989,8 @@ static int io_uring_show_cred(struct seq_file *m, unsigned int id,
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return 0;
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}
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static void __io_uring_show_fdinfo(struct io_ring_ctx *ctx, struct seq_file *m)
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static __cold void __io_uring_show_fdinfo(struct io_ring_ctx *ctx,
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struct seq_file *m)
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{
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struct io_sq_data *sq = NULL;
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struct io_overflow_cqe *ocqe;
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@ -10098,7 +10102,7 @@ static void __io_uring_show_fdinfo(struct io_ring_ctx *ctx, struct seq_file *m)
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spin_unlock(&ctx->completion_lock);
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}
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static void io_uring_show_fdinfo(struct seq_file *m, struct file *f)
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static __cold void io_uring_show_fdinfo(struct seq_file *m, struct file *f)
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{
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struct io_ring_ctx *ctx = f->private_data;
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@ -10122,8 +10126,8 @@ static const struct file_operations io_uring_fops = {
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#endif
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};
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static int io_allocate_scq_urings(struct io_ring_ctx *ctx,
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struct io_uring_params *p)
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static __cold int io_allocate_scq_urings(struct io_ring_ctx *ctx,
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struct io_uring_params *p)
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{
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struct io_rings *rings;
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size_t size, sq_array_offset;
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|
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@ -10212,8 +10216,8 @@ static struct file *io_uring_get_file(struct io_ring_ctx *ctx)
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return file;
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}
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static int io_uring_create(unsigned entries, struct io_uring_params *p,
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struct io_uring_params __user *params)
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static __cold int io_uring_create(unsigned entries, struct io_uring_params *p,
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struct io_uring_params __user *params)
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{
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struct io_ring_ctx *ctx;
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struct file *file;
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|
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@ -10371,7 +10375,8 @@ SYSCALL_DEFINE2(io_uring_setup, u32, entries,
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return io_uring_setup(entries, params);
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}
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static int io_probe(struct io_ring_ctx *ctx, void __user *arg, unsigned nr_args)
|
||||
static __cold int io_probe(struct io_ring_ctx *ctx, void __user *arg,
|
||||
unsigned nr_args)
|
||||
{
|
||||
struct io_uring_probe *p;
|
||||
size_t size;
|
||||
|
|
@ -10427,8 +10432,8 @@ static int io_register_personality(struct io_ring_ctx *ctx)
|
|||
return id;
|
||||
}
|
||||
|
||||
static int io_register_restrictions(struct io_ring_ctx *ctx, void __user *arg,
|
||||
unsigned int nr_args)
|
||||
static __cold int io_register_restrictions(struct io_ring_ctx *ctx,
|
||||
void __user *arg, unsigned int nr_args)
|
||||
{
|
||||
struct io_uring_restriction *res;
|
||||
size_t size;
|
||||
|
|
@ -10562,7 +10567,7 @@ static int io_register_rsrc_update(struct io_ring_ctx *ctx, void __user *arg,
|
|||
return __io_register_rsrc_update(ctx, type, &up, up.nr);
|
||||
}
|
||||
|
||||
static int io_register_rsrc(struct io_ring_ctx *ctx, void __user *arg,
|
||||
static __cold int io_register_rsrc(struct io_ring_ctx *ctx, void __user *arg,
|
||||
unsigned int size, unsigned int type)
|
||||
{
|
||||
struct io_uring_rsrc_register rr;
|
||||
|
|
@ -10588,8 +10593,8 @@ static int io_register_rsrc(struct io_ring_ctx *ctx, void __user *arg,
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int io_register_iowq_aff(struct io_ring_ctx *ctx, void __user *arg,
|
||||
unsigned len)
|
||||
static __cold int io_register_iowq_aff(struct io_ring_ctx *ctx,
|
||||
void __user *arg, unsigned len)
|
||||
{
|
||||
struct io_uring_task *tctx = current->io_uring;
|
||||
cpumask_var_t new_mask;
|
||||
|
|
@ -10615,7 +10620,7 @@ static int io_register_iowq_aff(struct io_ring_ctx *ctx, void __user *arg,
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int io_unregister_iowq_aff(struct io_ring_ctx *ctx)
|
||||
static __cold int io_unregister_iowq_aff(struct io_ring_ctx *ctx)
|
||||
{
|
||||
struct io_uring_task *tctx = current->io_uring;
|
||||
|
||||
|
|
@ -10625,8 +10630,8 @@ static int io_unregister_iowq_aff(struct io_ring_ctx *ctx)
|
|||
return io_wq_cpu_affinity(tctx->io_wq, NULL);
|
||||
}
|
||||
|
||||
static int io_register_iowq_max_workers(struct io_ring_ctx *ctx,
|
||||
void __user *arg)
|
||||
static __cold int io_register_iowq_max_workers(struct io_ring_ctx *ctx,
|
||||
void __user *arg)
|
||||
{
|
||||
struct io_uring_task *tctx = NULL;
|
||||
struct io_sq_data *sqd = NULL;
|
||||
|
|
@ -10707,7 +10712,7 @@ static bool io_register_op_must_quiesce(int op)
|
|||
}
|
||||
}
|
||||
|
||||
static int io_ctx_quiesce(struct io_ring_ctx *ctx)
|
||||
static __cold int io_ctx_quiesce(struct io_ring_ctx *ctx)
|
||||
{
|
||||
long ret;
|
||||
|
||||
|
|
|
|||
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