linux/io_uring/tctx.h
Pavel Begunkov e70cb60893 io_uring: export io_put_task()
Make io_put_task() available to non-core parts of io_uring, we'll need
it for notification infrastructure.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/3686807d4c03b72e389947b0e8692d4d44334ef0.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-24 18:41:06 -06:00

32 lines
934 B
C

// SPDX-License-Identifier: GPL-2.0
struct io_tctx_node {
struct list_head ctx_node;
struct task_struct *task;
struct io_ring_ctx *ctx;
};
int io_uring_alloc_task_context(struct task_struct *task,
struct io_ring_ctx *ctx);
void io_uring_del_tctx_node(unsigned long index);
int __io_uring_add_tctx_node(struct io_ring_ctx *ctx, bool submitter);
void io_uring_clean_tctx(struct io_uring_task *tctx);
void io_uring_unreg_ringfd(void);
int io_ringfd_register(struct io_ring_ctx *ctx, void __user *__arg,
unsigned nr_args);
int io_ringfd_unregister(struct io_ring_ctx *ctx, void __user *__arg,
unsigned nr_args);
/*
* Note that this task has used io_uring. We use it for cancelation purposes.
*/
static inline int io_uring_add_tctx_node(struct io_ring_ctx *ctx)
{
struct io_uring_task *tctx = current->io_uring;
if (likely(tctx && tctx->last == ctx))
return 0;
return __io_uring_add_tctx_node(ctx, true);
}