[RFC PATCH] ubifs: Add zstd support

[Richard Weinberger]

Am Dienstag, 16. Januar 2018, 07:16:44 CET schrieb yuyufen:
> On 2018/1/12 18:45, Richard Weinberger wrote:
> > Yufen Yu,
> > 
> > Am Freitag, 12. Januar 2018, 10:24:21 CET schrieb Yufen Yu:
> >> Add zstd compression and decompression support to ubifs. zstd at its
> >> fastest level compresses almost as well as zlib, while offering much
> >> faster compression and decompression, approaching lzo speeds.
> >> 
> >> This patch is based on the patch:
> >> 	https://patchwork.kernel.org/patch/9892631/
> >> 
> >> zstd source repository: https://github.com/facebook/zstd
> > 
> > Do you have numbers on how much we gain for UBIFS on a typical embedded
> > device?
> > 
> > Thanks,
> > //richard
> > 
> > .
> 
> This is a RFC patch. I will post the test results after the full
> function completing.

Well, I have nothing against adding zstd support to UBIFS, if you can show 
that it is useful and can explain why we should use zstd and not another 
modern compressor.

Thanks,
//richard