[RFC PATCH] treewide: remove bzip2 compression support

Michal Suchánek msuchanek at suse.de
Wed Dec 16 08:51:57 AEDT 2020


On Tue, Dec 15, 2020 at 02:03:15PM -0500, Alex Xu (Hello71) wrote:
> bzip2 is either slower or larger than every other supported algorithm,
> according to benchmarks at [0]. It is far slower to decompress than any
> other algorithm, and still larger than lzma, xz, and zstd.
> [0] https://lore.kernel.org/lkml/1588791882.08g1378g67.none@localhost/

Sounds cool. I wonder how many people will complain that their
distribution migrated to bzip2 but got stuck there and now new kernels
won't work on there with some odd tool or another :p

> @@ -212,11 +209,6 @@ choice
>  	  Compression speed is only relevant when building a kernel.
>  	  Decompression speed is relevant at each boot.
> -	  If you have any problems with bzip2 or lzma compressed
> -	  kernels, mail me (Alain Knaff) <alain at knaff.lu>. (An older
> -	  version of this functionality (bzip2 only), for 2.4, was
> -	  supplied by Christian Ludwig)
> -
Shouldn't the LZMA part be preserved here?



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