Messages in this thread | | | Date | Tue, 14 Jan 2014 18:37:45 -0800 (PST) | From | David Rientjes <> | Subject | Re: [RFC][PATCH 2/9] mm: slub: abstract out double cmpxchg option |
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On Tue, 14 Jan 2014, Dave Hansen wrote:
> > On Tue, 14 Jan 2014, Dave Hansen wrote: > >> I found this useful to have in my testing. I would like to have > >> it available for a bit, at least until other folks have had a > >> chance to do some testing with it. > > > > I dont really see the point of this patch since we already have > > CONFIG_HAVE_ALIGNED_STRUCT_PAGE to play with. > > With the current code, if you wanted to turn off the double-cmpxchg abd > get a 56-byte 'struct page' how would you do it? Can you do it with a > .config, or do you need to hack the code? >
If that's the intention of disabling this new config option, then it should probably mention the savings in the "help" section, similar to what CONFIG_HAVE_ALIGNED_STRUCT_PAGE says.
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