The quilt patch titled
Subject: mm: convert hugetlb_page_mapping_lock_write to folio
has been removed from the -mm tree. Its filename was
mm-convert-hugetlb_page_mapping_lock_write-to-folio.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: convert hugetlb_page_mapping_lock_write to folio
Date: Fri, 12 Apr 2024 20:35:03 +0100
The page is only used to get the mapping, so the folio will do just as
well. Both callers already have a folio available, so this saves a call
to compound_head().
Link: https://lkml.kernel.org/r/20240412193510.2356957-7-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: Jane Chu <jane.chu@xxxxxxxxxx>
Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
Acked-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/hugetlb.h | 6 +++---
mm/hugetlb.c | 6 +++---
mm/memory-failure.c | 2 +-
mm/migrate.c | 2 +-
4 files changed, 8 insertions(+), 8 deletions(-)
--- a/include/linux/hugetlb.h~mm-convert-hugetlb_page_mapping_lock_write-to-folio
+++ a/include/linux/hugetlb.h
@@ -178,7 +178,7 @@ bool hugetlbfs_pagecache_present(struct
struct vm_area_struct *vma,
unsigned long address);
-struct address_space *hugetlb_page_mapping_lock_write(struct page *hpage);
+struct address_space *hugetlb_folio_mapping_lock_write(struct folio *folio);
extern int sysctl_hugetlb_shm_group;
extern struct list_head huge_boot_pages[MAX_NUMNODES];
@@ -297,8 +297,8 @@ static inline unsigned long hugetlb_tota
return 0;
}
-static inline struct address_space *hugetlb_page_mapping_lock_write(
- struct page *hpage)
+static inline struct address_space *hugetlb_folio_mapping_lock_write(
+ struct folio *folio)
{
return NULL;
}
--- a/mm/hugetlb.c~mm-convert-hugetlb_page_mapping_lock_write-to-folio
+++ a/mm/hugetlb.c
@@ -2155,13 +2155,13 @@ static bool prep_compound_gigantic_folio
/*
* Find and lock address space (mapping) in write mode.
*
- * Upon entry, the page is locked which means that page_mapping() is
+ * Upon entry, the folio is locked which means that folio_mapping() is
* stable. Due to locking order, we can only trylock_write. If we can
* not get the lock, simply return NULL to caller.
*/
-struct address_space *hugetlb_page_mapping_lock_write(struct page *hpage)
+struct address_space *hugetlb_folio_mapping_lock_write(struct folio *folio)
{
- struct address_space *mapping = page_mapping(hpage);
+ struct address_space *mapping = folio_mapping(folio);
if (!mapping)
return mapping;
--- a/mm/memory-failure.c~mm-convert-hugetlb_page_mapping_lock_write-to-folio
+++ a/mm/memory-failure.c
@@ -1624,7 +1624,7 @@ static bool hwpoison_user_mappings(struc
* TTU_RMAP_LOCKED to indicate we have taken the lock
* at this higher level.
*/
- mapping = hugetlb_page_mapping_lock_write(hpage);
+ mapping = hugetlb_folio_mapping_lock_write(folio);
if (mapping) {
try_to_unmap(folio, ttu|TTU_RMAP_LOCKED);
i_mmap_unlock_write(mapping);
--- a/mm/migrate.c~mm-convert-hugetlb_page_mapping_lock_write-to-folio
+++ a/mm/migrate.c
@@ -1425,7 +1425,7 @@ static int unmap_and_move_huge_page(new_
* semaphore in write mode here and set TTU_RMAP_LOCKED
* to let lower levels know we have taken the lock.
*/
- mapping = hugetlb_page_mapping_lock_write(&src->page);
+ mapping = hugetlb_folio_mapping_lock_write(src);
if (unlikely(!mapping))
goto unlock_put_anon;
_
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
