Once upon a time, Adam Jackson <ajax(a)redhat.com> said:
Sadly this turns out not to be the case, at least if I'm reading
fs/pipe.c correctly. O_NOATIME will turn off atime updates, but mtime
and ctime are still modified on every pipe write, and there's no such
thing as O_NOCMTIME even though the filesystem layer does have the
concept internally. Which means device-backed filesystems will see
write traffic just for using named pipes.
Heck of lame. Someone should fix that.
The behavior follows the standard, so it shouldn't just be changed by
default without checking if anybody uses the standard behavior.
--
Chris Adams <cmadams(a)hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.