On Wed, Mar 31, 2021 at 1:53 PM <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > > The patch titled > Subject: init: add support for zstd compressed modules > has been added to the -mm tree. Its filename is > init-add-support-for-zstd-compressed-modules.patch > > This patch should soon appear at > https://ozlabs.org/~akpm/mmots/broken-out/init-add-support-for-zstd-compressed-modules.patch > and later at > https://ozlabs.org/~akpm/mmotm/broken-out/init-add-support-for-zstd-compressed-modules.patch > > Before you just go and hit "reply", please: > a) Consider who else should be cc'ed > b) Prefer to cc a suitable mailing list as well > c) Ideally: find the original patch on the mailing list and do a > reply-to-all to that, adding suitable additional cc's > > *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** > > The -mm tree is included into linux-next and is updated > there every 3-4 working days > > ------------------------------------------------------ > From: Piotr Gorski <lucjan.lucjanov@xxxxxxxxx> > Subject: init: add support for zstd compressed modules > > kmod 28 supports modules compressed in zstd format so let's add this > possibility to kernel. > > Requires this update to mkinitcpio: > https://github.com/archlinux/mkinitcpio/pull/43 > > Link: https://lkml.kernel.org/r/20210330113235.2767216-1-lucjan.lucjanov@xxxxxxxxx > Signed-off-by: Piotr Gorski <lucjan.lucjanov@xxxxxxxxx> > Reviewed-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> > Tested-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> > Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> > Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> I applied v3 to the kbuild tree. > --- > > Makefile | 7 +++++-- > init/Kconfig | 9 ++++++--- > 2 files changed, 11 insertions(+), 5 deletions(-) > > --- a/init/Kconfig~init-add-support-for-zstd-compressed-modules > +++ a/init/Kconfig > @@ -2222,8 +2222,8 @@ config MODULE_COMPRESS > bool "Compress modules on installation" > help > > - Compresses kernel modules when 'make modules_install' is run; gzip or > - xz depending on "Compression algorithm" below. > + Compresses kernel modules when 'make modules_install' is run; gzip, > + xz, or zstd depending on "Compression algorithm" below. > > module-init-tools MAY support gzip, and kmod MAY support gzip and xz. > > @@ -2245,7 +2245,7 @@ choice > This determines which sort of compression will be used during > 'make modules_install'. > > - GZIP (default) and XZ are supported. > + GZIP (default), XZ, and ZSTD are supported. > > config MODULE_COMPRESS_GZIP > bool "GZIP" > @@ -2253,6 +2253,9 @@ config MODULE_COMPRESS_GZIP > config MODULE_COMPRESS_XZ > bool "XZ" > > +config MODULE_COMPRESS_ZSTD > + bool "ZSTD" > + > endchoice > > config MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS > --- a/Makefile~init-add-support-for-zstd-compressed-modules > +++ a/Makefile > @@ -1066,8 +1066,8 @@ endif # INSTALL_MOD_STRIP > export mod_strip_cmd > > # CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed > -# after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP > -# or CONFIG_MODULE_COMPRESS_XZ. > +# after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP, > +# CONFIG_MODULE_COMPRESS_XZ, or CONFIG_MODULE_COMPRESS_ZSTD. > > mod_compress_cmd = true > ifdef CONFIG_MODULE_COMPRESS > @@ -1077,6 +1077,9 @@ ifdef CONFIG_MODULE_COMPRESS > ifdef CONFIG_MODULE_COMPRESS_XZ > mod_compress_cmd = $(XZ) --lzma2=dict=2MiB -f > endif # CONFIG_MODULE_COMPRESS_XZ > + ifdef CONFIG_MODULE_COMPRESS_ZSTD > + mod_compress_cmd = $(ZSTD) -T0 --rm -f -q > + endif # CONFIG_MODULE_COMPRESS_ZSTD > endif # CONFIG_MODULE_COMPRESS > export mod_compress_cmd > > _ > > Patches currently in -mm which might be from lucjan.lucjanov@xxxxxxxxx are > > init-add-support-for-zstd-compressed-modules.patch > -- Best Regards Masahiro Yamada
