diff options
| -rw-r--r-- | fs/io_uring.c | 2 | ||||
| -rw-r--r-- | include/uapi/linux/io_uring.h | 7 |
2 files changed, 9 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 02250693a406..f800b0b4498f 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1153,6 +1153,8 @@ static inline bool io_should_trigger_evfd(struct io_ring_ctx *ctx) { if (!ctx->cq_ev_fd) return false; + if (READ_ONCE(ctx->rings->cq_flags) & IORING_CQ_EVENTFD_DISABLED) + return false; if (!ctx->eventfd_async) return true; return io_wq_current_is_worker(); diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 602bb0ece607..8c5775df08b8 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -210,6 +210,13 @@ struct io_cqring_offsets { }; /* + * cq_ring->flags + */ + +/* disable eventfd notifications */ +#define IORING_CQ_EVENTFD_DISABLED (1U << 0) + +/* * io_uring_enter(2) flags */ #define IORING_ENTER_GETEVENTS (1U << 0) |