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io_uring: add io_queue_async_work() helper 

Add a helper for queueing a request for async execution, in preparation
for optimizing it.

No functional change in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
alistair/sunxi64-5.4-dsi
Jens Axboe 2019-09-10 09:13:05 -06:00
parent c576666863
commit 18d9be1a97
1 changed files with 11 additions and 5 deletions
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16
fs/io_uring.c
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@ -443,6 +443,12 @@ static void __io_commit_cqring(struct io_ring_ctx *ctx)
}
}
static inline void io_queue_async_work(struct io_ring_ctx *ctx,
struct io_kiocb *req)
{
queue_work(ctx->sqo_wq, &req->work);
}
static void io_commit_cqring(struct io_ring_ctx *ctx)
{
struct io_kiocb *req;
@ -456,7 +462,7 @@ static void io_commit_cqring(struct io_ring_ctx *ctx)
continue;
}
req->flags |= REQ_F_IO_DRAINED;
queue_work(ctx->sqo_wq, &req->work);
io_queue_async_work(ctx, req);
}
}
@ -619,7 +625,7 @@ static void io_req_link_next(struct io_kiocb *req)
nxt->flags |= REQ_F_LINK_DONE;
INIT_WORK(&nxt->work, io_sq_wq_submit_work);
queue_work(req->ctx->sqo_wq, &nxt->work);
io_queue_async_work(req->ctx, nxt);
}
}
@ -1519,7 +1525,7 @@ static void io_poll_remove_one(struct io_kiocb *req)
WRITE_ONCE(poll->canceled, true);
if (!list_empty(&poll->wait.entry)) {
list_del_init(&poll->wait.entry);
queue_work(req->ctx->sqo_wq, &req->work);
io_queue_async_work(req->ctx, req);
}
spin_unlock(&poll->head->lock);
@ -1633,7 +1639,7 @@ static int io_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
io_cqring_ev_posted(ctx);
io_put_req(req);
} else {
queue_work(ctx->sqo_wq, &req->work);
io_queue_async_work(ctx, req);
}
return 1;
@ -2073,7 +2079,7 @@ static int __io_queue_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req,
if (list)
atomic_inc(&list->cnt);
INIT_WORK(&req->work, io_sq_wq_submit_work);
queue_work(ctx->sqo_wq, &req->work);
io_queue_async_work(ctx, req);
}
/*