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SubjectRe: [PATCH RFC v2 0/4] mm/ksm: add option to automerge VMAs
On Wed 15-05-19 17:15:57, Greg KH wrote:
> On Wed, May 15, 2019 at 04:51:51PM +0200, Michal Hocko wrote:
> > [Cc Suren and Minchan - the email thread starts here 20190514131654.25463-1-oleksandr@redhat.com]
> >
> > On Wed 15-05-19 08:53:11, Michal Hocko wrote:
> > [...]
> > > I will try to comment on the interface itself later. But I have to say
> > > that I am not impressed. Abusing sysfs for per process features is quite
> > > gross to be honest.
> >
> > I have already commented on this in other email. I consider sysfs an
> > unsuitable interface for per-process API.
>
> Wait, what? A new sysfs file/directory per process? That's crazy, no
> one must have benchmarked it :)

Just to clarify, that was not a per process file but rather per process API.
Essentially echo $PID > $SYSFS_SPECIAL_FILE

--
Michal Hocko
SUSE Labs

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