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Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/io_uring.c24
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)