Hello,
On Wed, Apr 07, 2021 at 08:57:31PM -0700, Roman Gushchin wrote:
> Since the commit 3e54097beb22 ("percpu: manage chunks based on
> contig_bits instead of free_bytes") chunks are sorted based on the
> size of the biggest continuous free area instead of the total number
> of free bytes. Update the corresponding comment to reflect this.
>
> Signed-off-by: Roman Gushchin <g...@fb.com>
> ---
> mm/percpu.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/mm/percpu.c b/mm/percpu.c
> index 6596a0a4286e..2f27123bb489 100644
> --- a/mm/percpu.c
> +++ b/mm/percpu.c
> @@ -99,7 +99,10 @@
>
> #include "percpu-internal.h"
>
> -/* the slots are sorted by free bytes left, 1-31 bytes share the same slot */
> +/*
> + * The slots are sorted by the size of the biggest continuous free area.
> + * 1-31 bytes share the same slot.
> + */
> #define PCPU_SLOT_BASE_SHIFT 5
> /* chunks in slots below this are subject to being sidelined on failed alloc
> */
> #define PCPU_SLOT_FAIL_THRESHOLD 3
> --
> 2.30.2
>
I've applied this to for-5.14.
Thanks,
Dennis
