From: Souptick Joarder <jrdr.linux@xxxxxxxxx> Subject: docs: mm/gup: minor documentation update Now there are 5 cases. Updated the same. Link: http://lkml.kernel.org/r/1592422023-7401-1-git-send-email-jrdr.linux@xxxxxxxxx Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx> Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: Jan Kara <jack@xxxxxxx> Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/core-api/pin_user_pages.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/Documentation/core-api/pin_user_pages.rst~docs-mm-gup-minor-documentation-update +++ a/Documentation/core-api/pin_user_pages.rst @@ -33,7 +33,7 @@ all combinations of get*(), pin*(), FOLL pin_user_pages*() APIs are clearly distinct from the get_user_pages*() APIs, so that's a natural dividing line, and a good point to make separate wrapper calls. In other words, use pin_user_pages*() for DMA-pinned pages, and -get_user_pages*() for other cases. There are four cases described later on in +get_user_pages*() for other cases. There are five cases described later on in this document, to further clarify that concept. FOLL_PIN and FOLL_GET are mutually exclusive for a given gup call. However, _
