Messages in this thread | | | Date | Tue, 13 Aug 2002 10:44:05 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [patch 7/21] batched freeing of anonymous pages |
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On Sun, 11 Aug 2002, Andrew Morton wrote: > > The VMA teardown code is currently removing pages from the LRU > one-at-a-time. And it is freeing those pages one-at-a-time.
This patch is wrong.
We already _have_ the pagevec for page table teardown, and by making it a per-CPU static structure instead of allocating it on the stack it can be made (and is) quite a lot bigger than a pvec.
If you want batching here, then the right approach is to just remove the "fast" code entirely, and batch it properly at the TLB struct level (since we _have_ to batch it there anyway, to fix the the thread unmapping TLB race condition)
This is what "tlbgather" is all about.
Linus
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