Add man page entry to io_uring_setup.2 for the new flag Signed-off-by: Dylan Yudaken <dylany@xxxxxx> --- man/io_uring_setup.2 | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/man/io_uring_setup.2 b/man/io_uring_setup.2 index 32a9e2ee89b5..01eb70d95292 100644 --- a/man/io_uring_setup.2 +++ b/man/io_uring_setup.2 @@ -257,6 +257,25 @@ how many userspace tasks do .I io_uring_enter(2). Available since 5.20. +.TP +.B IORING_SETUP_DEFER_TASKRUN +By default, io_uring will process all outstanding work at the end of any system +call or thread interrupt. This can delay the application from making other progress. +Setting this flag will hint to io_uring that it should defer work until an +.BR io_uring_enter(2) +call with the +.B IORING_ENTER_GETEVENTS +flag set. This allows the application to request work to run just before it wants to +process completions. +This flag requires the +.BR IORING_SETUP_SINGLE_ISSUER +flag to be set, and also enforces that the call to +.BR io_uring_enter(2) +is called from the same thread that submitted requests. +Note that if this flag is set then it is the application's responsibility to periodically +trigger work (for example via any of the CQE waiting functions) or else completions may +not be delivered. +Available since 6.1. .PP If no flags are specified, the io_uring instance is setup for interrupt driven I/O. I/O may be submitted using -- 2.30.2
