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Re: [Qemu-devel] [PATCH v6 0/4] Clean unused entries in the qcow2 L2/ref


From: Alberto Garcia
Subject: Re: [Qemu-devel] [PATCH v6 0/4] Clean unused entries in the qcow2 L2/refcount cache
Date: Wed, 24 Jun 2015 19:14:34 +0200
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https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg01929.html

On Fri 05 Jun 2015 06:27:20 PM CEST, Alberto Garcia wrote:
> v6:
> - Update documentation to clarify what "unused entries" mean.
>
> v5: https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg00573.html
> - Fix build in mingw.
> - Use getpagesize() instead of sysconf(_SC_PAGESIZE).
> - Clarify that 0 is the default value for 'cache-clean-interval', and that
>   it disables the feature.
> - Add the patch that documents how to configure the cache to this
>   series, expanded with the explanation of 'cache-clean-interval'.
>   (previous version: 
> https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg02253.html)
>
> v4: https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg06120.html
> - Revert the 'cache-clean-interval' change. This should probably go
>   into a new BlockDeviceInfoSpecific struct (along with other
>   settings), but is out of the scope for this series.
>
> v3: https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg05473.html
> - Add 'cache-clean-interval' field to ImageInfoSpecificQCow2.
>
> v2: https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg05316.html
> - Clarify that the block-commit mentioned in the first patch refers to
>   the HMP commit command.
> - Check the value of cache_clean_interval and cast it accordingly to
>   prevent it from overflowing.
>
> v1: https://lists.gnu.org/archive/html/qemu-devel/2015-05/msg03510.html
>
> Regards,
>
> Berto
>
> Alberto Garcia (4):
>   qcow2: mark the memory as no longer needed after qcow2_cache_empty()
>   qcow2: add option to clean unused cache entries after some time
>   docs: document how to configure the qcow2 L2/refcount caches
>   qcow2: reorder fields in Qcow2CachedTable to reduce padding
>
>  block/qcow2-cache.c  |  63 +++++++++++++++++++-
>  block/qcow2.c        |  64 ++++++++++++++++++++
>  block/qcow2.h        |   4 ++
>  docs/qcow2-cache.txt | 164 
> +++++++++++++++++++++++++++++++++++++++++++++++++++
>  qapi/block-core.json |   7 ++-
>  5 files changed, 300 insertions(+), 2 deletions(-)
>  create mode 100644 docs/qcow2-cache.txt
>
> -- 
> 2.1.4



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