The patch titled
Subject: fs: remove folio_file_mapping()
has been added to the -mm mm-unstable branch. Its filename is
fs-remove-folio_file_mapping.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/fs-remove-folio_file_mapping.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: fs: remove folio_file_mapping()
Date: Mon, 17 Feb 2025 19:20:08 +0000
No callers of this function remain as filesystems no longer see swapfile
pages through their normal read/write paths.
Link: https://lkml.kernel.org/r/20250217192009.437916-3-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/pagemap.h | 20 --------------------
1 file changed, 20 deletions(-)
--- a/include/linux/pagemap.h~fs-remove-folio_file_mapping
+++ a/include/linux/pagemap.h
@@ -536,26 +536,6 @@ struct address_space *folio_mapping(stru
struct address_space *swapcache_mapping(struct folio *);
/**
- * folio_file_mapping - Find the mapping this folio belongs to.
- * @folio: The folio.
- *
- * For folios which are in the page cache, return the mapping that this
- * page belongs to. Folios in the swap cache return the mapping of the
- * swap file or swap device where the data is stored. This is different
- * from the mapping returned by folio_mapping(). The only reason to
- * use it is if, like NFS, you return 0 from ->activate_swapfile.
- *
- * Do not call this for folios which aren't in the page cache or swap cache.
- */
-static inline struct address_space *folio_file_mapping(struct folio *folio)
-{
- if (unlikely(folio_test_swapcache(folio)))
- return swapcache_mapping(folio);
-
- return folio->mapping;
-}
-
-/**
* folio_flush_mapping - Find the file mapping this folio belongs to.
* @folio: The folio.
*
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
dax-remove-access-to-page-index.patch
dax-use-folios-more-widely-within-dax.patch
fs-convert-block_commit_write-to-take-a-folio.patch
fs-remove-page_file_mapping.patch
fs-remove-folio_file_mapping.patch
ocfs2-use-memcpy_to_folio-in-ocfs2_symlink_get_block.patch
ocfs2-remove-reference-to-bh-b_page.patch
