On 9/10/20 11:13 PM, Alejandro Colomar wrote: > Notes: I copied .nf and .fi from futex.2, but they made no visual difference. > What do they actually do? > > Signed-off-by: Alejandro Colomar <colomar.6.4.3@xxxxxxxxx> Thanks, Alex. Patch applied. Cheers, Michael > --- > man2/membarrier.2 | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/man2/membarrier.2 b/man2/membarrier.2 > index 8825de71e..f65c6be5c 100644 > --- a/man2/membarrier.2 > +++ b/man2/membarrier.2 > @@ -26,9 +26,15 @@ > .SH NAME > membarrier \- issue memory barriers on a set of threads > .SH SYNOPSIS > +.nf > +.PP > .B #include <linux/membarrier.h> > .PP > .BI "int membarrier(int " cmd ", int " flags ");" > +.fi > +.PP > +.IR Note : > +There is no glibc wrapper for this system call; see NOTES. > .SH DESCRIPTION > The > .BR membarrier () > @@ -270,6 +276,9 @@ Examples where > .BR membarrier () > can be useful include implementations > of Read-Copy-Update libraries and garbage collectors. > +.PP > +Glibc does not provide a wrapper for this system call; call it using > +.BR syscall (2). > .SH EXAMPLES > Assuming a multithreaded application where "fast_path()" is executed > very frequently, and where "slow_path()" is executed infrequently, the > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
