On Sun, Jan 14, 2018 at 07:56:39PM +0100, Eugene Syromyatnikov wrote: > * man2/s390_sthyi.2 (.SH DESCRIPTION): Document the size of the > resp_buffer when function_code is 0. > (.SH NOTES): Document various aspects of the current implementation (the > lifted requirement for the response buffer alignment, the usage of > hardware STHYI instruction whether available, the presence of in-kernel > cache), add description for the documentation URL. > --- > +The in-kernel implementation of the function code 0 doesn't require the response > +buffer to be aligned to a page boundary (in contrast to the STHYI instruction > +requirement). Maybe: "When using the system call interface the response buffer doesn't have to fulfill alignment requirements as described in the STHYI instruction defintion." ? > +.PP > +The in-kernel implementation uses STHYI function whether available. > +.PP I don't think this should be described in the man page. This is an implementation detail that can change at any time. > +The kernel caches the response (for one second, currently), so the subsequent > +calls to the system call within may return previously cached values instead. "The kernel caches the response up to one second. Subsequent system call invocations may return the cached response." ? -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
