diff options
| author | Stefano Garzarella <sgarzare@redhat.com> | 2020-05-15 19:38:05 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-05-15 21:16:59 +0300 |
| commit | 7e55a19cf6e70ce08964b46dbbfbdb07fbc995fc (patch) | |
| tree | c3c822bc6a855e22fa9d1092f7670eb4a1b59274 /include/uapi/linux | |
| parent | 0d9b5b3af134cddfdc1dd31d41946a0ad389bbf2 (diff) | |
| download | linux-7e55a19cf6e70ce08964b46dbbfbdb07fbc995fc.tar.xz | |
io_uring: add IORING_CQ_EVENTFD_DISABLED to the CQ ring flags
This new flag should be set/clear from the application to
disable/enable eventfd notifications when a request is completed
and queued to the CQ ring.
Before this patch, notifications were always sent if an eventfd is
registered, so IORING_CQ_EVENTFD_DISABLED is not set during the
initialization.
It will be up to the application to set the flag after initialization
if no notifications are required at the beginning.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 7 |
1 files changed, 7 insertions, 0 deletions
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) |