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* [merged mm-stable] uprobes-use-new_folio-in-__replace_page.patch removed from -mm tree
@ 2022-10-03 21:05 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2022-10-03 21:05 UTC (permalink / raw)
  To: mm-commits, willy, akpm


The quilt patch titled
     Subject: uprobes: use new_folio in __replace_page()
has been removed from the -mm tree.  Its filename was
     uprobes-use-new_folio-in-__replace_page.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@infradead.org>
Subject: uprobes: use new_folio in __replace_page()
Date: Fri, 2 Sep 2022 20:46:52 +0100

Saves several calls to compound_head().

Link: https://lkml.kernel.org/r/20220902194653.1739778-57-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/events/uprobes.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

--- a/kernel/events/uprobes.c~uprobes-use-new_folio-in-__replace_page
+++ a/kernel/events/uprobes.c
@@ -155,6 +155,7 @@ static int __replace_page(struct vm_area
 				struct page *old_page, struct page *new_page)
 {
 	struct folio *old_folio = page_folio(old_page);
+	struct folio *new_folio;
 	struct mm_struct *mm = vma->vm_mm;
 	DEFINE_FOLIO_VMA_WALK(pvmw, old_folio, vma, addr, 0);
 	int err;
@@ -164,8 +165,8 @@ static int __replace_page(struct vm_area
 				addr + PAGE_SIZE);
 
 	if (new_page) {
-		err = mem_cgroup_charge(page_folio(new_page), vma->vm_mm,
-					GFP_KERNEL);
+		new_folio = page_folio(new_page);
+		err = mem_cgroup_charge(new_folio, vma->vm_mm, GFP_KERNEL);
 		if (err)
 			return err;
 	}
@@ -180,9 +181,9 @@ static int __replace_page(struct vm_area
 	VM_BUG_ON_PAGE(addr != pvmw.address, old_page);
 
 	if (new_page) {
-		get_page(new_page);
+		folio_get(new_folio);
 		page_add_new_anon_rmap(new_page, vma, addr);
-		lru_cache_add_inactive_or_unevictable(new_page, vma);
+		folio_add_lru_vma(new_folio, vma);
 	} else
 		/* no new page, just dec_mm_counter for old_page */
 		dec_mm_counter(mm, MM_ANONPAGES);
_

Patches currently in -mm which might be from willy@infradead.org are



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2022-10-03 21:05 [merged mm-stable] uprobes-use-new_folio-in-__replace_page.patch removed from -mm tree Andrew Morton

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