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authorPavel Begunkov <asml.silence@gmail.com>2023-04-06 16:20:10 +0300
committerJens Axboe <axboe@kernel.dk>2023-04-07 01:23:28 +0300
commit8501fe70ae9855076ffb03a3670e02a7b3437304 (patch)
tree003d6511ee5db3c95d3e96ed5679f933b8e1ffac /io_uring
parent6e7248adf8f7adb5e36ec1e91efcc85a83bf8aeb (diff)
downloadlinux-8501fe70ae9855076ffb03a3670e02a7b3437304.tar.xz
io_uring: add tw add flags
We pass 'allow_local' into io_req_task_work_add() but will need more flags. Replace it with a flags bit field and name this allow_local flag. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/4c0f01e7ef4e6feebfb199093cc995af7a19befa.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.c7
-rw-r--r--io_uring/io_uring.h9
2 files changed, 11 insertions, 5 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index d4ac62de2113..6f175fe682e4 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1324,12 +1324,13 @@ static void io_req_local_work_add(struct io_kiocb *req)
wake_up_state(ctx->submitter_task, TASK_INTERRUPTIBLE);
}
-void __io_req_task_work_add(struct io_kiocb *req, bool allow_local)
+void __io_req_task_work_add(struct io_kiocb *req, unsigned flags)
{
struct io_uring_task *tctx = req->task->io_uring;
struct io_ring_ctx *ctx = req->ctx;
- if (allow_local && ctx->flags & IORING_SETUP_DEFER_TASKRUN) {
+ if (!(flags & IOU_F_TWQ_FORCE_NORMAL) &&
+ (ctx->flags & IORING_SETUP_DEFER_TASKRUN)) {
rcu_read_lock();
io_req_local_work_add(req);
rcu_read_unlock();
@@ -1359,7 +1360,7 @@ static void __cold io_move_task_work_from_local(struct io_ring_ctx *ctx)
io_task_work.node);
node = node->next;
- __io_req_task_work_add(req, false);
+ __io_req_task_work_add(req, IOU_F_TWQ_FORCE_NORMAL);
}
}
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
index 24d8196bbca3..cb4309a2acdc 100644
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -16,6 +16,11 @@
#endif
enum {
+ /* don't use deferred task_work */
+ IOU_F_TWQ_FORCE_NORMAL = 1,
+};
+
+enum {
IOU_OK = 0,
IOU_ISSUE_SKIP_COMPLETE = -EIOCBQUEUED,
@@ -48,7 +53,7 @@ static inline bool io_req_ffs_set(struct io_kiocb *req)
return req->flags & REQ_F_FIXED_FILE;
}
-void __io_req_task_work_add(struct io_kiocb *req, bool allow_local);
+void __io_req_task_work_add(struct io_kiocb *req, unsigned flags);
bool io_is_uring_fops(struct file *file);
bool io_alloc_async_data(struct io_kiocb *req);
void io_req_task_queue(struct io_kiocb *req);
@@ -93,7 +98,7 @@ bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task,
static inline void io_req_task_work_add(struct io_kiocb *req)
{
- __io_req_task_work_add(req, true);
+ __io_req_task_work_add(req, 0);
}
#define io_for_each_link(pos, head) \