Re: [OS-BUILD PATCH] [redhat] New configs in mm/Kconfig

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On 6/3/20 1:14 PM, GitLab Bridge on behalf of jeremycline wrote:
> From: "CKI@GitLab" <cki-project@xxxxxxxxxx>
>
> Hi,
>
> As part of the ongoing rebase effort, the following configuration
> options need to be reviewed.

aquini, please review.

Thanks,

P.
>
> As a reminder, the ARK configuration flow involves moving unreviewed
> configuration options from the pending directory to the ark directory.
> In the diff below, options are removed from the pending directory and
> added to the ark hierarchy. The final options that need to be ACKed
> are the files that are being added to the ark hierarchy.
>
> If the value for a file that is added should be changed, please reply
> with a better option.
>
>  CONFIG_ZSMALLOC_PGTABLE_MAPPING:
>
>  By default, zsmalloc uses a copy-based object mapping method to
>  access allocations that span two pages. However, if a particular
>  architecture (ex, ARM) performs VM mapping faster than copying,
>  then you should select this. This causes zsmalloc to use page table
>  mapping rather than copying for object mapping.
>
>  You can check speed with zsmalloc benchmark:
>  https://github.com/spartacus06/zsmapbench
>
>  Symbol: ZSMALLOC_PGTABLE_MAPPING [=n]
>  Type  : bool
>  Defined at mm/Kconfig:708
>    Prompt: Use page table mapping to access object in zsmalloc
>    Depends on: ZSMALLOC [=y]=y
>    Location:
>      -> Memory Management options
>        -> Memory allocator for compressed pages (ZSMALLOC [=y])
>
> ---
>
> Signed-off-by: CKI@GitLab <cki-project@xxxxxxxxxx>
> ---
>  .../generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING   |  1 +
>  .../generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING   | 23 -------------------
>  2 files changed, 1 insertion(+), 23 deletions(-)
>  create mode 100644 redhat/configs/common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
>  delete mode 100644
redhat/configs/pending-common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
>
> diff --git a/redhat/configs/common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
b/redhat/configs/common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
> new file mode 100644
> index 000000000000..502c3e374887
> --- /dev/null
> +++ b/redhat/configs/common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
> @@ -0,0 +1 @@
> +# CONFIG_ZSMALLOC_PGTABLE_MAPPING is not set
> diff --git
a/redhat/configs/pending-common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
b/redhat/configs/pending-common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
> deleted file mode 100644
> index 2f3d89cf6004..000000000000
> --- a/redhat/configs/pending-common/generic/CONFIG_ZSMALLOC_PGTABLE_MAPPING
> +++ /dev/null
> @@ -1,23 +0,0 @@
> -# CONFIG_ZSMALLOC_PGTABLE_MAPPING:
> -#
> -# By default, zsmalloc uses a copy-based object mapping method to
> -# access allocations that span two pages. However, if a particular
> -# architecture (ex, ARM) performs VM mapping faster than copying,
> -# then you should select this. This causes zsmalloc to use page table
> -# mapping rather than copying for object mapping.
> -#
> -# You can check speed with zsmalloc benchmark:
> -# https://github.com/spartacus06/zsmapbench
> -#
> -# Symbol: ZSMALLOC_PGTABLE_MAPPING [=n]
> -# Type  : bool
> -# Defined at mm/Kconfig:708
> -#   Prompt: Use page table mapping to access object in zsmalloc
> -#   Depends on: ZSMALLOC [=y]=y
> -#   Location:
> -#     -> Memory Management options
> -#       -> Memory allocator for compressed pages (ZSMALLOC [=y])
> -#
> -#
> -#
> -# CONFIG_ZSMALLOC_PGTABLE_MAPPING is not set
>

:wq
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