The quilt patch titled
Subject: mm: remove page_ref_sub_return()
has been removed from the -mm tree. Its filename was
mm-remove-page_ref_sub_return.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: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: remove page_ref_sub_return()
Date: Wed, 24 Apr 2024 20:19:09 +0100
With all callers converted to folios, we can act directly on
folio->_refcount.
Link: https://lkml.kernel.org/r/20240424191914.361554-5-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/page_ref.h | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
--- a/include/linux/page_ref.h~mm-remove-page_ref_sub_return
+++ a/include/linux/page_ref.h
@@ -139,20 +139,15 @@ static inline void folio_ref_sub(struct
page_ref_sub(&folio->page, nr);
}
-static inline int page_ref_sub_return(struct page *page, int nr)
+static inline int folio_ref_sub_return(struct folio *folio, int nr)
{
- int ret = atomic_sub_return(nr, &page->_refcount);
+ int ret = atomic_sub_return(nr, &folio->_refcount);
if (page_ref_tracepoint_active(page_ref_mod_and_return))
- __page_ref_mod_and_return(page, -nr, ret);
+ __page_ref_mod_and_return(&folio->page, -nr, ret);
return ret;
}
-static inline int folio_ref_sub_return(struct folio *folio, int nr)
-{
- return page_ref_sub_return(&folio->page, nr);
-}
-
static inline void page_ref_inc(struct page *page)
{
atomic_inc(&page->_refcount);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
squashfs-convert-squashfs_symlink_read_folio-to-use-folio-apis.patch
squashfs-remove-calls-to-set-the-folio-error-flag.patch
nilfs2-remove-calls-to-folio_set_error-and-folio_clear_error.patch
