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Re: [Qemu-devel] [PATCH 12/17] migration: add postcopy migration of dirt
From: |
Max Reitz |
Subject: |
Re: [Qemu-devel] [PATCH 12/17] migration: add postcopy migration of dirty bitmaps |
Date: |
Thu, 2 Feb 2017 00:02:37 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 22.11.2016 18:54, Vladimir Sementsov-Ogievskiy wrote:
> Postcopy migration of dirty bitmaps. Only named dirty bitmaps,
> associated with root nodes and non-root named nodes are migrated.
>
> If destination qemu is already containing a dirty bitmap with the same name
> as a migrated bitmap (for the same node), than, if their granularities are
> the same the migration will be done, otherwise the error will be generated.
>
> If destination qemu doesn't contain such bitmap it will be created.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> ---
> include/migration/block.h | 1 +
> include/migration/migration.h | 4 +
> migration/Makefile.objs | 2 +-
> migration/block-dirty-bitmap.c | 679
> +++++++++++++++++++++++++++++++++++++++++
> migration/migration.c | 3 +
> migration/savevm.c | 2 +
> migration/trace-events | 14 +
> vl.c | 1 +
> 8 files changed, 705 insertions(+), 1 deletion(-)
> create mode 100644 migration/block-dirty-bitmap.c
From someone who doesn't know a thing about migration, a rather cursory:
Reviewed-by: Max Reitz <address@hidden>
But at least that probably means the set of code covered by this R-b is
disjoint from the set of code covered by Juan's R-b. :-)
Max
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