APPLIED/cmt: [F][PATCH 0/7] Compression improvements in Linux kernel (LP: 1830208)

Seth Forshee seth.forshee at
Sat Mar 7 14:46:18 UTC 2020

On Tue, Feb 18, 2020 at 02:12:52PM +0100, frank.heimes at wrote:
> Buglink:
> The following patches add several improvements for s390x hardware compression via zlib.
> Frank Heimes (1):
>   Ubuntu: [Config] Introducing s390x specific kernel config option
> Mikhail Zaslonko (6):
>   lib/zlib: add s390 hardware support for kernel zlib_deflate
>   s390/boot: rename HEAP_SIZE due to name collision
>   lib/zlib: add s390 hardware support for kernel zlib_inflate
>   s390/boot: add dfltcc= kernel command line parameter
>   lib/zlib: add zlib_deflate_dfltcc_enabled() function
>   btrfs: use larger zlib buffer for s390 hardware compression

Please make sure you run updateconfigs after making config changes. The
last patch had CONFIG_ZLIB_DFLTCC in both the s390x and common config
files, which should never be the case.

Applied to focal/master-next with the configs fixed. Also applied the
annotation to unstable/master-next. Thanks!

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