Re: [PATCH 4/7] zram: use atomic operation for stat

[Minchan Kim]

On Mon, Jan 13, 2014 at 03:58:14PM -0800, Andrew Morton wrote:
> On Mon, 13 Jan 2014 20:18:59 +0900 Minchan Kim <minchan@xxxxxxxxxx> wrote:
> 
> > Some of fields in zram->stats are protected by zram->lock which
> > is rather coarse-grained so let's use atomic operation without
> > explict locking.
> 
> Confused.  The patch didn't remove any locking, so it made the code
> slower.

True but it could make remove dependency of zram->lock for 32bit stat
so further patches can remove messy code and enhance write performance.
So, it's preparing patch for further step.
Should I rewrite the description to explain this?

> 
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Kind regards,
Minchan Kim
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