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Re: [Qemu-devel] [PATCH V3 0/7] Make QED with live migration safe
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH V3 0/7] Make QED with live migration safe |
Date: |
Fri, 23 Mar 2012 11:24:21 +0000 |
On Fri, Mar 23, 2012 at 7:36 AM, Benoît Canet <address@hidden> wrote:
> This is the third version of a patchset aiming at making the combined
> usage of QED and live migration safe.
>
> v3:
>
> -qed: Drop the flags qed structure member and use bs->open_flags to reopen
> (stefana)
> -qed: When opening honor flags parameter instead of bs->open_flags
>
> v2:
>
> -The block layer is not aware anymore of the migration state. (stefanha)
> -No bdrv_invalidate_cache renaming since the semantic do not change.
> (stefanha)
> -The qed bdrv_invalidate_cache function does a reopening of the image to flush
> metadata and to do the image integrity check. (stefanha)
>
> Benoît Canet (7):
> block: Add new BDRV_O_INCOMING flag to notice incoming live migration
> block: add a function to clear incoming live migration flags
> blockdev: open images with BDRV_O_INCOMING on incoming live migration
> qed: add bdrv_invalidate_cache to be called after incoming live
> migration
> migration: clear BDRV_O_INCOMING flags on end of incoming live
> migration
> qed: honor BDRV_O_INCOMING for incoming live migration
> qed: remove incoming live migration blocker
>
> block.c | 9 +++++++++
> block.h | 3 +++
> block/qed.c | 24 +++++++++++++-----------
> block/qed.h | 2 --
> blockdev.c | 4 ++++
> migration.c | 1 +
> 6 files changed, 30 insertions(+), 13 deletions(-)
I tested qed live migration as well as confirming that bs->open_flags
BDRV_O_INCOMING works correctly in gdb.
Reviewed-by: Stefan Hajnoczi <address@hidden>
- [Qemu-devel] [PATCH V3 0/7] Make QED with live migration safe, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 2/7] block: add a function to clear incoming live migration flags, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 5/7] migration: clear BDRV_O_INCOMING flags on end of incoming live migration, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 4/7] qed: add bdrv_invalidate_cache to be called after incoming live migration, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 6/7] qed: honor BDRV_O_INCOMING for incoming live migration, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 1/7] block: Add new BDRV_O_INCOMING flag to notice incoming live migration, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 7/7] qed: remove incoming live migration blocker, Benoît Canet, 2012/03/23
- [Qemu-devel] [PATCH V3 3/7] blockdev: open images with BDRV_O_INCOMING on incoming live migration, Benoît Canet, 2012/03/23
- Re: [Qemu-devel] [PATCH V3 0/7] Make QED with live migration safe,
Stefan Hajnoczi <=