diff options
Diffstat (limited to 'io_uring/wait.h')
| -rw-r--r-- | io_uring/wait.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/io_uring/wait.h b/io_uring/wait.h index a4274b137f81..b7b9c46b1b01 100644 --- a/io_uring/wait.h +++ b/io_uring/wait.h @@ -5,12 +5,14 @@ #include <linux/io_uring_types.h> /* - * No waiters. It's larger than any valid value of the tw counter - * so that tests against ->cq_wait_nr would fail and skip wake_up(). + * ->cq_wait_nr is armed with the number of lazy task_work adds the waiter + * still needs, and counted down by the add side, with the add reaching zero + * issuing the (single) wake up for this wait cycle. Zero and below means no + * wake up is to be issued: IO_CQ_WAKE_INIT when no task is waiting (also + * what a forced wake up resets it to when claiming one), zero once the + * countdown has fired. */ -#define IO_CQ_WAKE_INIT (-1U) -/* Forced wake up if there is a waiter regardless of ->cq_wait_nr */ -#define IO_CQ_WAKE_FORCE (IO_CQ_WAKE_INIT >> 1) +#define IO_CQ_WAKE_INIT (-1) struct ext_arg { size_t argsz; |