Re: [PATCH 1/3] proc/meminfo: avoid open coded reading of vm_committed_as

From: Michal Hocko
Date: Fri May 15 2020 - 03:22:15 EST


On Fri 08-05-20 15:25:15, Feng Tang wrote:
> Use the existing vm_memory_committed() instead, which is also
> convenient for future change.
>
> Signed-off-by: Feng Tang <feng.tang@xxxxxxxxx>

Acked-by: Michal Hocko <mhocko@xxxxxxxx>

> ---
> fs/proc/meminfo.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
> index 8c1f1bb..578c0b8 100644
> --- a/fs/proc/meminfo.c
> +++ b/fs/proc/meminfo.c
> @@ -42,7 +42,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
>
> si_meminfo(&i);
> si_swapinfo(&i);
> - committed = percpu_counter_read_positive(&vm_committed_as);
> + committed = vm_memory_committed();
>
> cached = global_node_page_state(NR_FILE_PAGES) -
> total_swapcache_pages() - i.bufferram;
> --
> 2.7.4

--
Michal Hocko
SUSE Labs