diff options
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 3f92028a7ee8..653361746203 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -1322,17 +1322,16 @@ static void __cold io_move_task_work_from_local(struct io_ring_ctx *ctx) static int __io_run_local_work(struct io_ring_ctx *ctx, bool *locked) { struct llist_node *node; - struct llist_node fake; - struct llist_node *current_final = NULL; + unsigned int loops = 0; int ret = 0; - unsigned int loops = 1; if (WARN_ON_ONCE(ctx->submitter_task != current)) return -EEXIST; - - node = io_llist_xchg(&ctx->work_llist, &fake); + if (ctx->flags & IORING_SETUP_TASKRUN_FLAG) + atomic_andnot(IORING_SQ_TASKRUN, &ctx->rings->sq_flags); again: - while (node != current_final) { + node = io_llist_xchg(&ctx->work_llist, NULL); + while (node) { struct llist_node *next = node->next; struct io_kiocb *req = container_of(node, struct io_kiocb, io_task_work.node); @@ -1341,23 +1340,14 @@ again: ret++; node = next; } + loops++; - if (ctx->flags & IORING_SETUP_TASKRUN_FLAG) - atomic_andnot(IORING_SQ_TASKRUN, &ctx->rings->sq_flags); - - node = io_llist_cmpxchg(&ctx->work_llist, &fake, NULL); - if (node != &fake) { - loops++; - current_final = &fake; - node = io_llist_xchg(&ctx->work_llist, &fake); + if (!llist_empty(&ctx->work_llist)) goto again; - } - if (*locked) io_submit_flush_completions(ctx); trace_io_uring_local_work_run(ctx, ret, loops); return ret; - } static inline int io_run_local_work_locked(struct io_ring_ctx *ctx) |