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io_uring: have cancelation API accept io_uring_task directly 

We just use the io_kiocb passed in to find the io_uring_task, and we
already pass in the ctx via cd->ctx anyway.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2022-06-18 09:23:54 -06:00
parent 024b8fde33
commit 88f52eaad2
3 changed files with 11 additions and 10 deletions
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17
io_uring/cancel.c
View File

@ -77,15 +77,15 @@ static int io_async_cancel_one(struct io_uring_task *tctx,
return ret;
}
int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd,
int io_try_cancel(struct io_uring_task *tctx, struct io_cancel_data *cd,
unsigned issue_flags)
{
struct io_ring_ctx *ctx = req->ctx;
struct io_ring_ctx *ctx = cd->ctx;
int ret;
WARN_ON_ONCE(!io_wq_current_is_worker() && req->task != current);
WARN_ON_ONCE(!io_wq_current_is_worker() && tctx != current->io_uring);
ret = io_async_cancel_one(req->task->io_uring, cd);
ret = io_async_cancel_one(tctx, cd);
/*
* Fall-through even for -EALREADY, as we may have poll armed
* that need unarming.
@ -104,7 +104,6 @@ int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd,
return ret;
}
int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_cancel *cancel = io_kiocb_to_cmd(req);
@ -127,7 +126,8 @@ int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
return 0;
}
static int __io_async_cancel(struct io_cancel_data *cd, struct io_kiocb *req,
static int __io_async_cancel(struct io_cancel_data *cd,
struct io_uring_task *tctx,
unsigned int issue_flags)
{
bool all = cd->flags & (IORING_ASYNC_CANCEL_ALL|IORING_ASYNC_CANCEL_ANY);
@ -136,7 +136,7 @@ static int __io_async_cancel(struct io_cancel_data *cd, struct io_kiocb *req,
int ret, nr = 0;
do {
ret = io_try_cancel(req, cd, issue_flags);
ret = io_try_cancel(tctx, cd, issue_flags);
if (ret == -ENOENT)
break;
if (!all)
@ -170,6 +170,7 @@ int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags)
.flags = cancel->flags,
.seq = atomic_inc_return(&req->ctx->cancel_seq),
};
struct io_uring_task *tctx = req->task->io_uring;
int ret;
if (cd.flags & IORING_ASYNC_CANCEL_FD) {
@ -185,7 +186,7 @@ int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags)
cd.file = req->file;
}
ret = __io_async_cancel(&cd, req, issue_flags);
ret = __io_async_cancel(&cd, tctx, issue_flags);
done:
if (ret < 0)
req_set_fail(req);

2
io_uring/cancel.h
View File

@ -16,6 +16,6 @@ struct io_cancel_data {
int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags);
int io_try_cancel(struct io_kiocb *req, struct io_cancel_data *cd,
int io_try_cancel(struct io_uring_task *tctx, struct io_cancel_data *cd,
unsigned int issue_flags);
void init_hash_table(struct io_hash_table *table, unsigned size);

2
io_uring/timeout.c
View File

@ -274,7 +274,7 @@ static void io_req_task_link_timeout(struct io_kiocb *req, bool *locked)
.data = prev->cqe.user_data,
};
ret = io_try_cancel(req, &cd, issue_flags);
ret = io_try_cancel(req->task->io_uring, &cd, issue_flags);
}
io_req_set_res(req, ret ?: -ETIME, 0);
io_req_complete_post(req);