linux-kernel - Re: [PATCH v3 0/5] lib: rework bitmap

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Message-ID: <20190403112341.GS9224@smile.fi.intel.com>
Date:   Wed, 3 Apr 2019 14:23:41 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Yury Norov <yury.norov@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Arnd Bergmann <arnd@...db.de>,
        Kees Cook <keescook@...omium.org>,
        Matthew Wilcox <willy@...radead.org>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        Mike Travis <travis@....com>, Yury Norov <ynorov@...vell.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/5] lib: rework bitmap_parselist and tests

On Wed, Apr 03, 2019 at 07:54:27AM +0300, Yury Norov wrote:
> On Wed, Apr 03, 2019 at 07:45:35AM +0300, Yury Norov wrote:
> > bitmap_parselist has been evolved from a pretty simple idea for long and
> > now lacks for refactoring. It is not structured, has nested loops and a
> > set of opaque-named variables.
> > 
> > Things are more complicated because bitmap_parselist() is a part of user
> > interface, and its behavior should not change.
> > 
> > In this patchset
> >  - bitmap_parselist_user() made a wrapper on bitmap_parselist();
> >  - bitmap_parselist() reworked (patch 2);
> >  - time measurement in test_bitmap_parselist switched to ktime_get
> >    (patch 3);
> >  - new tests introduced (patch 4), and
> >  - bitmap_parselist_user() testing enabled with the same testset as
> >    bitmap_parselist() (patch 5).
> > 
> > v1: https://lkml.org/lkml/2018/12/23/50
> > v2: https://www.spinics.net/lists/kernel/msg3048976.html
> > v3: Implementation of an approach with copying the data to
> >     kernel space in bitmap_parselist_user() instead of parsing
> >     user data byte by byte. For me, it looks better than v2.

> I'm sorry for noise. My mail server works unstable, and it would be
> better to submit patches 4 and 5 a bit later. They are actually the
> same as in v2.

May you send then v4 with my (and others if any) comments being addressed?

-- 
With Best Regards,
Andy Shevchenko