Re: [PATCH v4] zram: Introduce an aged idle interface

Minchan Kim
2021-09-23T16:47:53Z

On Thu, Sep 23, 2021 at 06:01:15AM -0700, Brian Geffon wrote:
> This change introduces an aged idle interface to the existing
> idle sysfs file for zram.
>
> When CONFIG_ZRAM_MEMORY_TRACKING is enabled the idle file
> now also accepts an integer argument. This integer is the
> age (in seconds) of pages to mark as idle. The idle file
> still supports 'all' as it always has. This new approach
> allows for much more control over which pages get marked
> as idle.
>
> v3 -> v4:
> - Remove base10 restriction.
>
> v2 -> v3:
> - Correct unused variable warning when
> CONFIG_ZRAM_MEMORY_TRACKING is not enabled.
> v1 -> v2:
> - Switch to using existing idle file.
> - Dont compare ktime directly.
>
> Signed-off-by: Brian Geffon <bgeffon@google.com>
Acked-by: Minchan Kim <minchan@kernel.org>