Messages in this thread | | | Date | Fri, 6 Oct 2017 13:47:29 +0200 | From | Michal Hocko <> | Subject | Re: [PATCH v10 09/10] mm: stop zeroing memory during allocation in vmemmap |
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On Fri 06-10-17 11:10:14, David Laight wrote: > From: Pavel Tatashin > > Sent: 05 October 2017 22:11 > > vmemmap_alloc_block() will no longer zero the block, so zero memory > > at its call sites for everything except struct pages. Struct page memory > > is zero'd by struct page initialization. > > It seems dangerous to change an allocator to stop zeroing memory. > It is probably saver to add a new function that doesn't zero > the memory and use that is the places where you don't want it > to be zeroed.
Not sure what you mean. memblock_virt_alloc_try_nid_raw is a new function which doesn't zero out... -- Michal Hocko SUSE Labs
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