This is a note to let you know that I've just added the patch titled
zsmalloc: document freeable stats
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
zsmalloc-document-freeable-stats.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 618a8a917dbf5830e2064d2fa0568940eb5d2584 Mon Sep 17 00:00:00 2001
From: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Date: Sat, 25 Mar 2023 11:46:31 +0900
Subject: zsmalloc: document freeable stats
From: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
commit 618a8a917dbf5830e2064d2fa0568940eb5d2584 upstream.
When freeable class stat was added to classes file (back in 2016) we
forgot to update zsmalloc documentation. Fix that.
Link: https://lkml.kernel.org/r/20230325024631.2817153-3-senozhatsky@xxxxxxxxxxxx
Fixes: 1120ed548394 ("mm/zsmalloc: add `freeable' column to pool stat")
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Documentation/mm/zsmalloc.rst | 2 ++
1 file changed, 2 insertions(+)
--- a/Documentation/mm/zsmalloc.rst
+++ b/Documentation/mm/zsmalloc.rst
@@ -68,6 +68,8 @@ pages_used
the number of pages allocated for the class
pages_per_zspage
the number of 0-order pages to make a zspage
+freeable
+ the approximate number of pages class compaction can free
We assign a zspage to ZS_ALMOST_EMPTY fullness group when n <= N / f, where
Patches currently in stable-queue which might be from senozhatsky@xxxxxxxxxxxx are
queue-6.2/zsmalloc-document-freeable-stats.patch
