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https://github.com/edk2-porting/linux-next.git
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493108d95f
Add a zerocopy version of sendmsg. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/6aabc4bdfc0ec78df6ec9328137e394af9d4e7ef.1663668091.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/net.h>
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#include <linux/uio.h>
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#include "alloc_cache.h"
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#if defined(CONFIG_NET)
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struct io_async_msghdr {
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union {
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struct iovec fast_iov[UIO_FASTIOV];
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struct {
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struct iovec fast_iov_one;
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__kernel_size_t controllen;
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int namelen;
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__kernel_size_t payloadlen;
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};
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struct io_cache_entry cache;
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};
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/* points to an allocated iov, if NULL we use fast_iov instead */
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struct iovec *free_iov;
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struct sockaddr __user *uaddr;
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struct msghdr msg;
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struct sockaddr_storage addr;
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};
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struct io_async_connect {
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struct sockaddr_storage address;
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};
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int io_shutdown_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_shutdown(struct io_kiocb *req, unsigned int issue_flags);
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int io_sendmsg_prep_async(struct io_kiocb *req);
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void io_sendmsg_recvmsg_cleanup(struct io_kiocb *req);
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int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags);
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int io_send(struct io_kiocb *req, unsigned int issue_flags);
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int io_send_prep_async(struct io_kiocb *req);
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int io_recvmsg_prep_async(struct io_kiocb *req);
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int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags);
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int io_recv(struct io_kiocb *req, unsigned int issue_flags);
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void io_sendrecv_fail(struct io_kiocb *req);
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int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_accept(struct io_kiocb *req, unsigned int issue_flags);
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int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_socket(struct io_kiocb *req, unsigned int issue_flags);
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int io_connect_prep_async(struct io_kiocb *req);
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int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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int io_connect(struct io_kiocb *req, unsigned int issue_flags);
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int io_send_zc(struct io_kiocb *req, unsigned int issue_flags);
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int io_sendmsg_zc(struct io_kiocb *req, unsigned int issue_flags);
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int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
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void io_send_zc_cleanup(struct io_kiocb *req);
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void io_netmsg_cache_free(struct io_cache_entry *entry);
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#else
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static inline void io_netmsg_cache_free(struct io_cache_entry *entry)
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{
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}
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#endif
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