The patch titled
Subject: mm/thp: rename pmd_to_page() as pmd_pgtable_page()
has been added to the -mm mm-unstable branch. Its filename is
mm-thp-rename-pmd_to_page-as-pmd_pgtable_page.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-thp-rename-pmd_to_page-as-pmd_pgtable_page.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Subject: mm/thp: rename pmd_to_page() as pmd_pgtable_page()
Date: Thu, 24 Nov 2022 18:46:41 +0530
Current pmd_to_page(), which derives the page table page containing the
pmd address has a very misleading name. The problem being, it sounds
similar to pmd_page() which derives page embedded in a given pmd entry
either for next level page or a mapped huge page. Rename it as
pmd_pgtable_page() instead.
Link: https://lkml.kernel.org/r/20221124131641.1523772-1-anshuman.khandual@xxxxxxx
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/include/linux/mm.h~mm-thp-rename-pmd_to_page-as-pmd_pgtable_page
+++ a/include/linux/mm.h
@@ -2480,7 +2480,7 @@ static inline void pgtable_pte_page_dtor
#if USE_SPLIT_PMD_PTLOCKS
-static struct page *pmd_to_page(pmd_t *pmd)
+static struct page *pmd_pgtable_page(pmd_t *pmd)
{
unsigned long mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1);
return virt_to_page((void *)((unsigned long) pmd & mask));
@@ -2488,7 +2488,7 @@ static struct page *pmd_to_page(pmd_t *p
static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
{
- return ptlock_ptr(pmd_to_page(pmd));
+ return ptlock_ptr(pmd_pgtable_page(pmd));
}
static inline bool pmd_ptlock_init(struct page *page)
@@ -2507,7 +2507,7 @@ static inline void pmd_ptlock_free(struc
ptlock_free(page);
}
-#define pmd_huge_pte(mm, pmd) (pmd_to_page(pmd)->pmd_huge_pte)
+#define pmd_huge_pte(mm, pmd) (pmd_pgtable_page(pmd)->pmd_huge_pte)
#else
_
Patches currently in -mm which might be from anshuman.khandual@xxxxxxx are
documentation-mm-update-pmd_present-in-arch_pgtable_helpersrst.patch
mm-thp-rename-pmd_to_page-as-pmd_pgtable_page.patch
