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Re: [PATCH v2 06/13] exec: Relax range check in ram_block_discard_range(
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From: |
Peter Xu |
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Subject: |
Re: [PATCH v2 06/13] exec: Relax range check in ram_block_discard_range() |
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Date: |
Mon, 24 Feb 2020 17:27:32 -0500 |
On Fri, Feb 21, 2020 at 05:41:57PM +0100, David Hildenbrand wrote:
> We want to make use of ram_block_discard_range() in the RAM block resize
> callback when growing a RAM block, *before* used_length is changed.
> Let's relax the check. We always have a reserved mapping for the whole
> max_length, so we cannot corrupt unrelated data.
>
> Cc: Richard Henderson <address@hidden>
> Cc: Paolo Bonzini <address@hidden>
> Cc: Eduardo Habkost <address@hidden>
> Cc: Peter Xu <address@hidden>
> Signed-off-by: David Hildenbrand <address@hidden>
Reviewed-by: Peter Xu <address@hidden>
--
Peter Xu
- [PATCH v2 00/13] migrate/ram: Fix resizing RAM blocks while migrating, David Hildenbrand, 2020/02/21
- [PATCH v2 01/13] util: vfio-helpers: Factor out and fix processing of existing ram blocks, David Hildenbrand, 2020/02/21
- [PATCH v2 02/13] stubs/ram-block: Remove stubs that are no longer needed, David Hildenbrand, 2020/02/21
- [PATCH v2 03/13] numa: Teach ram block notifiers about resizeable ram blocks, David Hildenbrand, 2020/02/21
- [PATCH v2 04/13] numa: Make all callbacks of ram block notifiers optional, David Hildenbrand, 2020/02/21
- [PATCH v2 05/13] migration/ram: Handle RAM block resizes during precopy, David Hildenbrand, 2020/02/21
- [PATCH v2 06/13] exec: Relax range check in ram_block_discard_range(), David Hildenbrand, 2020/02/21
- Re: [PATCH v2 06/13] exec: Relax range check in ram_block_discard_range(),
Peter Xu <=
- [PATCH v2 08/13] migration/ram: Simplify host page handling in ram_load_postcopy(), David Hildenbrand, 2020/02/21
- [PATCH v2 07/13] migration/ram: Discard RAM when growing RAM blocks after ram_postcopy_incoming_init(), David Hildenbrand, 2020/02/21
- [PATCH v2 09/13] migration/ram: Consolidate variable reset after placement in ram_load_postcopy(), David Hildenbrand, 2020/02/21
- [PATCH v2 10/13] migration/ram: Handle RAM block resizes during postcopy, David Hildenbrand, 2020/02/21
- [PATCH v2 11/13] migration/multifd: Print used_length of memory block, David Hildenbrand, 2020/02/21
- [PATCH v2 12/13] migration/ram: Use offset_in_ramblock() in range checks, David Hildenbrand, 2020/02/21