io_uring/poll: add requeue return code from poll multishot handling

[platform/kernel/linux-rpi.git] / io_uring / io_uring.h

diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
index 0bc1456..c8cba78 100644 (file)
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -31,6 +31,13 @@ enum {
        IOU_ISSUE_SKIP_COMPLETE = -EIOCBQUEUED,
 
        /*
+        * Requeue the task_work to restart operations on this request. The
+        * actual value isn't important, should just be not an otherwise
+        * valid error code, yet less than -MAX_ERRNO and valid internally.
+        */
+       IOU_REQUEUE             = -3072,
+
+       /*
         * Intended only when both IO_URING_F_MULTISHOT is passed
         * to indicate to the poll runner that multishot should be
         * removed and the result is set on req->cqe.res.
@@ -86,6 +93,9 @@ bool __io_alloc_req_refill(struct io_ring_ctx *ctx);
 bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task,
                        bool cancel_all);
 
+void *io_mem_alloc(size_t size);
+void io_mem_free(void *ptr);
+
 #if defined(CONFIG_PROVE_LOCKING)
 static inline void io_lockdep_assert_cq_locked(struct io_ring_ctx *ctx)
 {