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SubjectRe: [PATCH V2,2/2] mm: madvise: skip unmapped vma holes passed to process_madvise
On Wed, 16 Mar 2022 19:49:38 +0530 Charan Teja Kalla <quic_charante@quicinc.com> wrote:

> > IMO, it's worth to note in man page.
> >
>
> Or the current patch for just ENOMEM is sufficient here and we just have
> to update the man page?

I think the "On success, process_madvise() returns the number of bytes
advised" behaviour sounds useful. But madvise() doesn't do that.

RETURN VALUE
On success, madvise() returns zero. On error, it returns -1 and errno
is set to indicate the error.

So why is it desirable in the case of process_madvise()?



And why was process_madvise() designed this way? Or was it
always simply an error in the manpage?

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