diff options
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/io_uring.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 106cba919023..55101013f3ee 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -1166,7 +1166,7 @@ static unsigned int handle_tw_list(struct llist_node *node, { unsigned int count = 0; - while (node != last) { + while (node && node != last) { struct llist_node *next = node->next; struct io_kiocb *req = container_of(node, struct io_kiocb, io_task_work.node); @@ -1226,23 +1226,20 @@ void tctx_task_work(struct callback_head *cb) task_work); struct llist_node fake = {}; struct llist_node *node; - unsigned int loops = 1; - unsigned int count; + unsigned int loops = 0; + unsigned int count = 0; if (unlikely(current->flags & PF_EXITING)) { io_fallback_tw(tctx); return; } - node = io_llist_xchg(&tctx->task_list, &fake); - count = handle_tw_list(node, &ctx, &uring_locked, NULL); - node = io_llist_cmpxchg(&tctx->task_list, &fake, NULL); - while (node != &fake) { + do { loops++; node = io_llist_xchg(&tctx->task_list, &fake); count += handle_tw_list(node, &ctx, &uring_locked, &fake); node = io_llist_cmpxchg(&tctx->task_list, &fake, NULL); - } + } while (node != &fake); ctx_flush_and_put(ctx, &uring_locked); |