Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 27 Sep 2012 13:54:43 +0000 | From | Christoph Lameter <> | Subject | Re: [PATCH] slab: Ignore internal flags in cache creation |
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On Wed, 26 Sep 2012, David Rientjes wrote:
> I would suggest cachep->flags being used solely for the flags passed to > kmem_cache_create() and seperating out all "internal flags" based on the > individual slab allocator's implementation into a different field. There > should be no problem with moving CFLGS_OFF_SLAB elsewhere, in fact, I just > removed a "dflags" field from mm/slab.c's kmem_cache that turned out never > to be used. You could simply reintroduce a new "internal_flags" field and > use it at your discretion.
This means touching another field from critical paths of the allocators. It would increase the cache footprint and therefore reduce performance.
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