Messages in this thread | | | Date | Tue, 14 Jan 2014 09:19:35 +0900 | From | Minchan Kim <> | Subject | Re: [PATCH 4/7] zram: use atomic operation for stat |
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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@kernel.org> 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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