io_uring: pass in counter to handle_tw_list() rather than return it

No functional changes in this patch, just in preparation for returning
something other than count from this helper.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 0b1a065a21c18ce94187be5dfadd09574e051bd6..bfd2f0fff153cf48c4812aa916339a05bd7b4378 100644 (file)
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1173,11 +1173,10 @@ static void ctx_flush_and_put(struct io_ring_ctx *ctx, struct io_tw_state *ts)
        percpu_ref_put(&ctx->refs);
 }
 
-static unsigned int handle_tw_list(struct llist_node *node)
+static void handle_tw_list(struct llist_node *node, unsigned int *count)
 {
        struct io_ring_ctx *ctx = NULL;
        struct io_tw_state ts = { };
-       unsigned int count = 0;
 
        do {
                struct llist_node *next = node->next;
@@ -1195,7 +1194,7 @@ static unsigned int handle_tw_list(struct llist_node *node)
                                io_poll_task_func, io_req_rw_complete,
                                req, &ts);
                node = next;
-               count++;
+               (*count)++;
                if (unlikely(need_resched())) {
                        ctx_flush_and_put(ctx, &ts);
                        ctx = NULL;
@@ -1204,7 +1203,6 @@ static unsigned int handle_tw_list(struct llist_node *node)
        } while (node);
 
        ctx_flush_and_put(ctx, &ts);
-       return count;
 }
 
 /**
@@ -1263,7 +1261,7 @@ void tctx_task_work(struct callback_head *cb)
 
        node = llist_del_all(&tctx->task_list);
        if (node)
-               count = handle_tw_list(llist_reverse_order(node));
+               handle_tw_list(llist_reverse_order(node), &count);
 
        /* relaxed read is enough as only the task itself sets ->in_cancel */
        if (unlikely(atomic_read(&tctx->in_cancel)))