writev(2) notes that buffers don't interleave with other process' (a reasonable question to ask), but points to pipe(7) for an exception. pipe(7) did /not/ mention "writev", "iov", "scat", or "gath", which are, in order, reasonable search terms: this was confusing at best and alarming at worst By mentioning writev(2) in the heading, we clearly note that this sort of interleaving behaviour matches write(2)'s and isn't a concern Signed-off-by: Ahelenia Ziemiańska --- man7/pipe.7 | 2 ++ 1 file changed, 2 insertions(+) diff --git a/man7/pipe.7 b/man7/pipe.7 index c3210320c..29f6cf6cb 100644 --- a/man7/pipe.7 +++ b/man7/pipe.7 @@ -246,6 +246,8 @@ limits; see BUGS. .SS PIPE_BUF POSIX.1 says that .BR write (2)s +and +.BR writev (2)s of less than .B PIPE_BUF bytes must be atomic: the output data is written to the pipe as a -- 2.20.1