[merged mm-stable] mm-add-folio_get_nontail_page.patch removed from -mm tree

[merged mm-stable] mm-add-folio_get_nontail_page.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: add folio_get_nontail_page()
has been removed from the -mm tree.  Its filename was
     mm-add-folio_get_nontail_page.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Subject: mm: add folio_get_nontail_page()
Date: Mon, 30 Jan 2023 13:43:49 -0800

Patch series "Convert a couple migrate functions to use folios", v2.

This patchset introduces folio_movable_ops() and converts 3 functions in
mm/migrate.c to use folios.  It also introduces folio_get_nontail_page()
for folio conversions which may want to distinguish between head and tail
pages.


This patch (of 4):

folio_get_nontail_page() returns the folio associated with a head page. 
This is necessary for folio conversions where the behavior of that
function differs between head pages and tail pages.

Link: https://lkml.kernel.org/r/20230130214352.40538-1-vishal.moola@gmail.com
Link: https://lkml.kernel.org/r/20230130214352.40538-2-vishal.moola@gmail.com
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---


--- a/include/linux/mm.h~mm-add-folio_get_nontail_page
+++ a/include/linux/mm.h
@@ -892,6 +892,13 @@ static inline bool get_page_unless_zero(
 	return page_ref_add_unless(page, 1, 0);
 }
 
+static inline struct folio *folio_get_nontail_page(struct page *page)
+{
+	if (unlikely(!get_page_unless_zero(page)))
+		return NULL;
+	return (struct folio *)page;
+}
+
 extern int page_is_ram(unsigned long pfn);
 
 enum {
_

Patches currently in -mm which might be from vishal.moola@gmail.com are