Greg Thelen wrote:
> Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> writes:
>
>> * Greg Thelen <gthelen@xxxxxxxxxx> [2010-10-03 23:57:55]:
>>
>>
>>> This patch set provides the ability for each cgroup to have independent dirty
>>> page limits.
>>>
>>> Limiting dirty memory is like fixing the max amount of dirty (hard to reclaim)
>>> page cache used by a cgroup. So, in case of multiple cgroup writers, they will
>>> not be able to consume more than their designated share of dirty pages and will
>>> be forced to perform write-out if they cross that limit.
>>>
>>> These patches were developed and tested on mmotm 2010-09-28-16-13. The patches
>>> are based on a series proposed by Andrea Righi in Mar 2010.
>>>
>> Hi, Greg,
>>
>> I see a problem with " memcg: add dirty page accounting infrastructure".
>>
>> The reject is
>>
>> enum mem_cgroup_write_page_stat_item {
>> MEMCG_NR_FILE_MAPPED, /* # of pages charged as file rss */
>> + MEMCG_NR_FILE_DIRTY, /* # of dirty pages in page cache */
>> + MEMCG_NR_FILE_WRITEBACK, /* # of pages under writeback */
>> + MEMCG_NR_FILE_UNSTABLE_NFS, /* # of NFS unstable pages */
>> };
>>
>> I don't see mem_cgroup_write_page_stat_item in memcontrol.h. Is this
>> based on top of Kame's cleanup.
>>
>> I am working off of mmotm 28 sept 2010 16:13.
>>
>
> Balbir,
>
> All of the 10 memcg dirty limits patches should apply directly to mmotm
> 28 sept 2010 16:13 without any other patches. Any of Kame's cleanup
> patches that are not in mmotm are not needed by this memcg dirty limit
> series.
>
> The patch you refer to, "[PATCH 05/10] memcg: add dirty page accounting
> infrastructure" depends on a change from an earlier patch in the series.
> Specifically, "[PATCH 03/10] memcg: create extensible page stat update
> routines" contains the addition of mem_cgroup_write_page_stat_item:
>
> --- a/include/linux/memcontrol.h
> +++ b/include/linux/memcontrol.h
> @@ -25,6 +25,11 @@ struct page_cgroup;
> struct page;
> struct mm_struct;
>
> +/* Stats that can be updated by kernel. */
> +enum mem_cgroup_write_page_stat_item {
> + MEMCG_NR_FILE_MAPPED, /* # of pages charged as file rss */
> +};
> +
>
> Do you have trouble applying patch 5 after applying patches 1-4?
>
I could apply all the patches cleanly on mmotm 28/09/2010. Kernel build
also went through.
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