[v2,2/2] mm: remove page_rmapping()

Commit Message

Peng Zhang July 1, 2023, 3:28 a.m. UTC

From: ZhangPeng <[e-mail]>

After converting the last user to folio_raw_mapping(), we can safely
remove the function.

Signed-off-by: ZhangPeng <[e-mail]>
Reviewed-by: Sidhartha Kumar <[e-mail]>
---
 include/linux/mm.h | 1 -
 mm/util.c          | 6 ------
 2 files changed, 7 deletions(-)

Comments

Matthew Wilcox (Oracle) July 2, 2023, 12:02 a.m. UTC | #1

On Sat, Jul 01, 2023 at 11:28:53AM +0800, Peng Zhang wrote:
> From: ZhangPeng <[e-mail]>
> 
> After converting the last user to folio_raw_mapping(), we can safely
> remove the function.
> 
> Signed-off-by: ZhangPeng <[e-mail]>
> Reviewed-by: Sidhartha Kumar <[e-mail]>

Thank you!

Reviewed-by: Matthew Wilcox (Oracle) <[e-mail]>

Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 39aa409e84d5..c849419c6b51 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2151,7 +2151,6 @@  static inline void *folio_address(const struct folio *folio)
 	return page_address(&folio->page);
 }
 
-extern void *page_rmapping(struct page *page);
 extern pgoff_t __page_file_index(struct page *page);
 
 /*
diff --git a/mm/util.c b/mm/util.c
index dd12b9531ac4..5e9305189c3f 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -734,12 +734,6 @@  void *vcalloc(size_t n, size_t size)
 }
 EXPORT_SYMBOL(vcalloc);
 
-/* Neutral page->mapping pointer to address_space or anon_vma or other */
-void *page_rmapping(struct page *page)
-{
-	return folio_raw_mapping(page_folio(page));
-}
-
 struct anon_vma *folio_anon_vma(struct folio *folio)
 {
 	unsigned long mapping = (unsigned long)folio->mapping;