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Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages
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From: |
Linus Torvalds |
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Subject: |
Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages |
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Date: |
Fri, 3 Oct 2014 11:31:31 -0700 |
On Fri, Oct 3, 2014 at 10:08 AM, Andrea Arcangeli <address@hidden> wrote:
>
> Overall this looks a fairly small change to the rmap code, notably
> less intrusive than the nonlinear vmas created by remap_file_pages.
Considering that remap_file_pages() was an unmitigated disaster, and
-mm has a patch to remove it entirely, I'm not at all convinced this
is a good argument.
We thought remap_file_pages() was a good idea, and it really really
really wasn't. Almost nobody used it, why would the anonymous page
case be any different?
Linus
- [Qemu-devel] [PATCH 04/17] mm: gup: make get_user_pages_fast and __get_user_pages_fast latency conscious, (continued)
- [Qemu-devel] [PATCH 04/17] mm: gup: make get_user_pages_fast and __get_user_pages_fast latency conscious, Andrea Arcangeli, 2014/10/03
- [Qemu-devel] [PATCH 11/17] mm: swp_entry_swapcount, Andrea Arcangeli, 2014/10/03
- [Qemu-devel] [PATCH 15/17] userfaultfd: make userfaultfd_write non blocking, Andrea Arcangeli, 2014/10/03
- [Qemu-devel] [PATCH 13/17] waitqueue: add nr wake parameter to __wake_up_locked_key, Andrea Arcangeli, 2014/10/03
- [Qemu-devel] [PATCH 09/17] mm: PT lock: export double_pt_lock/unlock, Andrea Arcangeli, 2014/10/03
- [Qemu-devel] [PATCH 07/17] mm: madvise MADV_USERFAULT: prepare vm_flags to allow more than 32bits, Andrea Arcangeli, 2014/10/03
- [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Andrea Arcangeli, 2014/10/03
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages,
Linus Torvalds <=
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Dr. David Alan Gilbert, 2014/10/06
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Andrea Arcangeli, 2014/10/06
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Linus Torvalds, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Andrea Arcangeli, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Andrea Arcangeli, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Andy Lutomirski, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Peter Feiner, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Linus Torvalds, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Dr. David Alan Gilbert, 2014/10/07
- Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages, Paolo Bonzini, 2014/10/07