[PATCH 2/2] docs/mm: Specify page frag size is not bigger than PAGE_SIZE

[Haiyang Zhang]

The page frag allocator is not designed for fragsz > PAGE_SIZE.
Specify this in the document.

Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
---
 Documentation/mm/page_frags.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/mm/page_frags.rst b/Documentation/mm/page_frags.rst
index 503ca6cdb804..212ecc69dd74 100644
--- a/Documentation/mm/page_frags.rst
+++ b/Documentation/mm/page_frags.rst
@@ -2,7 +2,7 @@
 Page fragments
 ==============
 
-A page fragment is an arbitrary-length arbitrary-offset area of memory
+A page fragment is a len <= PAGE_SIZE, arbitrary-offset area of memory
 which resides within a 0 or higher order compound page.  Multiple
 fragments within that page are individually refcounted, in the page's
 reference counter.
-- 
2.34.1