diff mbox series

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

Message ID 1743715309-318-3-git-send-email-haiyangz@microsoft.com (mailing list archive)
State New
Headers show
Series mm: Explicitly check & doc fragsz limit | expand

Commit Message

Haiyang Zhang April 3, 2025, 9:21 p.m. UTC 
The page frag allocator is not designed for fragsz > PAGE_SIZE.
Specify this in the document.

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

Patch

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.