[PATCH] docs: admin-guide: cgroup-v1: update description of inactive_file

[Jian Wen]

MADV_FREE pages have been moved into the LRU_INACTIVE_FILE list by
commit f7ad2a6cb9f7 ("mm: move MADV_FREE pages into LRU_INACTIVE_FILE list").

Signed-off-by: Jian Wen <wenjian1@xxxxxxxxxx>
---
 Documentation/admin-guide/cgroup-v1/memory.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst
index 5b86245450bd..60370f2c67b9 100644
--- a/Documentation/admin-guide/cgroup-v1/memory.rst
+++ b/Documentation/admin-guide/cgroup-v1/memory.rst
@@ -543,7 +543,8 @@ inactive_anon	# of bytes of anonymous and swap cache memory on inactive
 		LRU list.
 active_anon	# of bytes of anonymous and swap cache memory on active
 		LRU list.
-inactive_file	# of bytes of file-backed memory on inactive LRU list.
+inactive_file	# of bytes of file-backed memory and MADV_FREE anonymous memory(
+                LazyFree pages) on inactive LRU list.
 active_file	# of bytes of file-backed memory on active LRU list.
 unevictable	# of bytes of memory that cannot be reclaimed (mlocked etc).
 =============== ===============================================================
-- 
2.25.1