Re: [PATCH v2 2/2] mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)

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On Tue, Sep 24, 2019 at 08:47:52PM +0000, cl@xxxxxxxxx wrote:
> On Mon, 23 Sep 2019, Darrick J. Wong wrote:
> 
> > On Mon, Sep 23, 2019 at 07:17:10PM +0200, David Sterba wrote:
> > > On Mon, Sep 23, 2019 at 06:36:32PM +0200, Vlastimil Babka wrote:
> > > > So if anyone thinks this is a good idea, please express it (preferably
> > > > in a formal way such as Acked-by), otherwise it seems the patch will be
> > > > dropped (due to a private NACK, apparently).
> >
> > Oh, I didn't realize  ^^^^^^^^^^^^ that *some* of us are allowed the
> > privilege of gutting a patch via private NAK without any of that open
> > development discussion incovenience. <grumble>
> 
> There was a public discussion about this issue and from what I can tell
> the outcome was that the allocator already provides what you want. Which
> was a mechanism to misalign objects and detect these issues. This
> mechanism has been in use for over a decade.

You missed the important part, which was *ENABLED BY DEFAULT*.  People
who are enabling a debugging option to debug their issues, should not
have to first debug all the other issues that enabling that debugging
option uncovers!




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