If SQPOLL task finds a ring requesting it to continue running, no need
to set wake flag to rest of the rings as it will be cleared in a moment
anyway, so hide it in a single sqd->ctx_list loop.
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
fs/io_uring.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index dd355438435d..64caf3767414 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -6889,11 +6889,10 @@ static int io_sq_thread(void *data)
prepare_to_wait(&sqd->wait, &wait, TASK_INTERRUPTIBLE);
if (!io_sqd_events_pending(sqd)) {
- list_for_each_entry(ctx, &sqd->ctx_list, sqd_list)
- io_ring_set_wakeup_flag(ctx);
-
needs_sched = true;
list_for_each_entry(ctx, &sqd->ctx_list, sqd_list) {
+ io_ring_set_wakeup_flag(ctx);
+
if ((ctx->flags & IORING_SETUP_IOPOLL) &&
!list_empty_careful(&ctx->iopoll_list)) {
needs_sched = false;
--
2.31.1
