diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-04-06 15:20:07 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-07 00:22:07 +0200 |
| commit | ab1c590f5c9b96d8d8843d351aed72469f8f2ef0 (patch) | |
| tree | bba104919bc82909e098b2d0018d2c2c383f552d /io_uring | |
| parent | io_uring/uring_cmd: assign ioucmd->cmd at async prep time (diff) | |
| download | linux-ab1c590f5c9b96d8d8843d351aed72469f8f2ef0.tar.xz linux-ab1c590f5c9b96d8d8843d351aed72469f8f2ef0.zip | |
io_uring: move pinning out of io_req_local_work_add
Move ctx pinning from io_req_local_work_add() to the caller, looks
better and makes working with the code a bit easier.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/49c0dbed390b0d6d04cb942dd3592879fd5bfb1b.1680782017.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io_uring.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index ae90d2753e0d..29a0516ee5ce 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -1306,17 +1306,15 @@ static void io_req_local_work_add(struct io_kiocb *req) { struct io_ring_ctx *ctx = req->ctx; - percpu_ref_get(&ctx->refs); - if (!llist_add(&req->io_task_work.node, &ctx->work_llist)) - goto put_ref; + return; /* needed for the following wake up */ smp_mb__after_atomic(); if (unlikely(atomic_read(&req->task->io_uring->in_cancel))) { io_move_task_work_from_local(ctx); - goto put_ref; + return; } if (ctx->flags & IORING_SETUP_TASKRUN_FLAG) @@ -1326,9 +1324,6 @@ static void io_req_local_work_add(struct io_kiocb *req) if (READ_ONCE(ctx->cq_waiting)) wake_up_state(ctx->submitter_task, TASK_INTERRUPTIBLE); - -put_ref: - percpu_ref_put(&ctx->refs); } void __io_req_task_work_add(struct io_kiocb *req, bool allow_local) @@ -1337,7 +1332,9 @@ void __io_req_task_work_add(struct io_kiocb *req, bool allow_local) struct io_ring_ctx *ctx = req->ctx; if (allow_local && ctx->flags & IORING_SETUP_DEFER_TASKRUN) { + percpu_ref_get(&ctx->refs); io_req_local_work_add(req); + percpu_ref_put(&ctx->refs); return; } |