liburing.h uses memset() but doesn't include string.h.
If nothing else includes it, this causes compile errors.
Add the include.
Signed-off-by: Ian Gulliver <git@flamingcow.io>
The examples in the io_uring_setup.2 man patch erroneously ORs
the protection bits and mmap flags, fix it up.
Signed-off-by: Ian Gulliver <git@flamingcow.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>