Re: [PATCH] lz4: fix performance regressions

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On Sun, Feb 12, 2017 at 04:20:00PM +0100, Sven Schmidt wrote:
> On Sun, Feb 12, 2017 at 02:05:08PM +0100, Willy Tarreau wrote:
> > Hi Sven,
> > 
> > On Sun, Feb 12, 2017 at 12:16:18PM +0100, Sven Schmidt wrote:
> > > Fix performance regressions compared to current kernel LZ4
> > 
> > Your patch contains mostly style cleanups which certainly are welcome
> > but make the whole patch hard to review. These cleanups would have been
> > better into a separate, preliminary patch IMHO.
> > 
> > Regards,
> > Willy
> 
> Hi Willy,
> 
> the problem was, I wanted to compare my version to the upstream LZ4 to find bugs (as with my last patch version: wrong indentation in LZ4HC 
> in two for loops). But since the LZ4 code is a pain to read, I made additional style cleanups "on the way".

Oh I can easily understand!

> Hope you can manage to review the patch though, because it is difficult to separate the cleanups now.

When I need to split a patch into pieces, usually what I do is that I
revert it, re-apply it without committing, then "git add -p", validate
all the hunks to be taken as the first patch (ie here the cleanups),
commit, then commit the rest as a separate one. It seems to me that the
fix is in the last few hunks though I'm not sure yet.

Thanks,
Willy



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