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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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3581696176
Pass the waiting time for __io_napi_adjust_timeout as ktime and get rid of all timespec64 conversions. It's especially simpler since the caller already have a ktime. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/4f5b8e8eed4f53a1879e031a6712b25381adc23d.1722003776.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef IOU_NAPI_H
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#define IOU_NAPI_H
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#include <linux/kernel.h>
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#include <linux/io_uring.h>
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#include <net/busy_poll.h>
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#ifdef CONFIG_NET_RX_BUSY_POLL
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void io_napi_init(struct io_ring_ctx *ctx);
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void io_napi_free(struct io_ring_ctx *ctx);
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int io_register_napi(struct io_ring_ctx *ctx, void __user *arg);
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int io_unregister_napi(struct io_ring_ctx *ctx, void __user *arg);
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void __io_napi_add(struct io_ring_ctx *ctx, struct socket *sock);
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void __io_napi_adjust_timeout(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq, ktime_t to_wait);
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void __io_napi_busy_loop(struct io_ring_ctx *ctx, struct io_wait_queue *iowq);
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int io_napi_sqpoll_busy_poll(struct io_ring_ctx *ctx);
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static inline bool io_napi(struct io_ring_ctx *ctx)
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{
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return !list_empty(&ctx->napi_list);
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}
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static inline void io_napi_adjust_timeout(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq,
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ktime_t to_wait)
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{
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if (!io_napi(ctx))
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return;
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__io_napi_adjust_timeout(ctx, iowq, to_wait);
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}
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static inline void io_napi_busy_loop(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq)
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{
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if (!io_napi(ctx))
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return;
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__io_napi_busy_loop(ctx, iowq);
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}
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/*
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* io_napi_add() - Add napi id to the busy poll list
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* @req: pointer to io_kiocb request
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*
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* Add the napi id of the socket to the napi busy poll list and hash table.
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*/
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static inline void io_napi_add(struct io_kiocb *req)
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{
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struct io_ring_ctx *ctx = req->ctx;
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struct socket *sock;
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if (!READ_ONCE(ctx->napi_busy_poll_dt))
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return;
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sock = sock_from_file(req->file);
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if (sock)
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__io_napi_add(ctx, sock);
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}
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#else
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static inline void io_napi_init(struct io_ring_ctx *ctx)
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{
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}
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static inline void io_napi_free(struct io_ring_ctx *ctx)
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{
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}
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static inline int io_register_napi(struct io_ring_ctx *ctx, void __user *arg)
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{
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return -EOPNOTSUPP;
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}
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static inline int io_unregister_napi(struct io_ring_ctx *ctx, void __user *arg)
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{
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return -EOPNOTSUPP;
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}
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static inline bool io_napi(struct io_ring_ctx *ctx)
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{
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return false;
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}
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static inline void io_napi_add(struct io_kiocb *req)
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{
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}
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static inline void io_napi_adjust_timeout(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq,
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ktime_t to_wait)
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{
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}
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static inline void io_napi_busy_loop(struct io_ring_ctx *ctx,
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struct io_wait_queue *iowq)
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{
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}
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static inline int io_napi_sqpoll_busy_poll(struct io_ring_ctx *ctx)
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{
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return 0;
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}
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#endif /* CONFIG_NET_RX_BUSY_POLL */
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#endif
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