Re: [PATCH 6/7] memcg: add per cgroup writeback pages accounting

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(2012/06/28 20:05), Sha Zhengju wrote:
> From: Sha Zhengju <handai.szj@xxxxxxxxxx>
> 
> Similar to dirty page, we add per cgroup writeback pages accounting. The lock
> rule still is:
> 	mem_cgroup_begin_update_page_stat()
> 	modify page WRITEBACK stat
> 	mem_cgroup_update_page_stat()
> 	mem_cgroup_end_update_page_stat()
> 
> There're two writeback interface to modify: test_clear/set_page_writeback.
> 
> Signed-off-by: Sha Zhengju <handai.szj@xxxxxxxxxx>

Seems good to me. BTW, you named macros as MEM_CGROUP_STAT_FILE_XXX
but I wonder these counters will be used for accounting swap-out's dirty pages..

STAT_DIRTY, STAT_WRITEBACK ? do you have better name ?

Thanks,
-Kame

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