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Groups > linux.kernel > #1408213
| From | Christoph Lameter <cl@linux.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v1] [mm] Set page->slab_cache for every page allocated for a kmem_cache. |
| Date | 2016-05-27 19:40 +0200 |
| Message-ID | <rDtTQ-6nl-21@gated-at.bofh.it> (permalink) |
| References | <rDtAt-6gF-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, 27 May 2016, Alexander Potapenko wrote: > It's reasonable to rely on the fact that for every page allocated for a > kmem_cache the |slab_cache| field points to that cache. Without that it's > hard to figure out which cache does an allocated object belong to. The flags are set only in the head page of a coumpound page which is used by SLAB. No need to do this. This would just mean unnecessarily dirtying struct page cachelines on allocation.
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[PATCH v1] [mm] Set page->slab_cache for every page allocated for a kmem_cache. Alexander Potapenko <glider@google.com> - 2016-05-27 19:20 +0200
Re: [PATCH v1] [mm] Set page->slab_cache for every page allocated for a kmem_cache. Christoph Lameter <cl@linux.com> - 2016-05-27 19:40 +0200
Re: [PATCH v1] [mm] Set page->slab_cache for every page allocated for a kmem_cache. Alexander Potapenko <glider@google.com> - 2016-05-27 19:50 +0200
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