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

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


On Tue, Feb 18, 2020 at 02:12:52PM +0100, frank.heimes at canonical.com wrote:
> Buglink: https://bugs.launchpad.net/bugs/1830208
> 
> The following patches add several improvements for s390x hardware compression via zlib.
> 
> Frank Heimes (1):
>   Ubuntu: [Config] Introducing s390x specific kernel config option
>     CONFIG_ZLIB_DFLTCC
> 
> 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!



More information about the kernel-team mailing list