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
