On Fri, 9 Sep 2022 10:41:05 +0800 Xin Hao <xhao@xxxxxxxxxxxxxxxxx> wrote:
> In lru_sort.c and reclaim.c, they are all defining get_monitoring_region()
> function, there is no need to define it separately.
>
> As 'get_monitoring_region()' is not a 'static' function anymore, we try
> to use a prefix to distinguish with other functions, so there rename it
> to 'damon_find_biggest_system_ram'.
>
> Suggested-by: SeongJae Park <sj@xxxxxxxxxx>
> Signed-off-by: Xin Hao <xhao@xxxxxxxxxxxxxxxxx>
> ---
> include/linux/damon.h | 11 +++++++++++
> mm/damon/core.c | 29 +++++++++++++++++++++++++++++
> mm/damon/lru_sort.c | 37 ++-----------------------------------
> mm/damon/reclaim.c | 37 ++-----------------------------------
> 4 files changed, 44 insertions(+), 70 deletions(-)
>
> diff --git a/include/linux/damon.h b/include/linux/damon.h
> index 7b1f4a488230..6c863b281fb2 100644
> --- a/include/linux/damon.h
> +++ b/include/linux/damon.h
> @@ -448,6 +448,16 @@ struct damon_ctx {
> struct list_head schemes;
> };
>
> +/**
> + * struct damon_system_ram_region - System RAM resource address region of [@start, @end).
I prefer 80 columns, let's break down this line.
https://docs.kernel.org/process/coding-style.html#breaking-long-lines-and-strings
Also this struct is gonna be used by only damon_find_biggest_system_ram(), so I
think it might make more sense to move this into core.c.
And, as this is not aimed to directly be used by external API users, I think it
would make more sense to hide from kernel doc (/* instead of /**).
> + * @start: Start address of the (inclusive).
of the 'region'?
> + * @end: End address of the region (exclusive).
I like the nice explanation: whether its inclusive or exclusive.
> + */
> +struct damon_system_ram_region {
> + unsigned long start;
> + unsigned long end;
> +};
> +
As this struct is only used by damon_find_biggest_system_ram(), I think it
might make more sense to move this into core.c?
Below parts all look good.
Also, this patch seems cannot cleanly applied on top of the latest
mm/mm-unstable branch. Would need rebase.
Thanks,
SJ
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