On Thu 26-03-20 14:30:41, Christian Brauner wrote: > On Thu, Mar 26, 2020 at 07:58:29AM +0100, Michal Hocko wrote: > > On Wed 25-03-20 17:20:40, Eric W. Biederman wrote: > > > Vlastimil Babka <vbabka@xxxxxxx> writes: > > [...] > > > > + if (strncmp(param, "sysctl.", sizeof("sysctl.") - 1)) > > > > + return 0; > > > > > > Is there any way we can use a slash separated path. I know > > > in practice there are not any sysctl names that don't have > > > a '.' in them but why should we artifically limit ourselves? > > > > Because this is the normal userspace interface? Why should it be any > > different from calling sysctl? > > [...] > > Imho, we should use ".". Kernel developers aren't the ones setting > these options, admins are and if I think back to the times doing that as > a job at uni I'd be very confused if I learned that I get to set sysctl > options through the kernel command but need to use yet another format > than what I usually do to set those from the shell. Consistency is most > of the times to be preferred imho. Absolutely agreed! Even if sysctl can consume / instead of ., which was a news to me btw, the majority of the usage is with `.' -- Michal Hocko SUSE Labs