Document that IORING_SETUP_REGISTERED_FD_ONLY depends on IORING_SETUP_NO_MMAP being set. Closes: https://github.com/axboe/liburing/issues/1087 Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxx> --- man/io_uring_setup.2 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/man/io_uring_setup.2 b/man/io_uring_setup.2 index f65c1f2..888e82b 100644 --- a/man/io_uring_setup.2 +++ b/man/io_uring_setup.2 @@ -325,6 +325,9 @@ file descriptor. The caller will need to use .B IORING_REGISTER_USE_REGISTERED_RING when calling .BR io_uring_register (2). +This flag only makes sense when used alongside with +.B IORING_SETUP_NO_MMAP, +which also needs to be set. Available since 6.5. .TP @@ -690,6 +693,10 @@ was not, or was specified, but .I io_uring_params.cq_entries was invalid. +.B IORING_SETUP_REGISTERED_FD_ONLY +was specified, but +.B IORING_SETUP_NO_MMAP +was not. .TP .B EMFILE The per-process limit on the number of open file descriptors has been -- 2.44.0
