The patch titled
Subject: mm: use page->private instead of page->index in percpu
has been added to the -mm mm-unstable branch. Its filename is
mm-use-page-private-instead-of-page-index-in-percpu.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-use-page-private-instead-of-page-index-in-percpu.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: mm: use page->private instead of page->index in percpu
Date: Tue, 23 Jul 2024 16:35:01 +0100
The percpu allocator only uses one field in struct page, just change
it from page->index to page->private.
Link: https://lkml.kernel.org/r/20240723153503.1669586-7-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/percpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/percpu.c~mm-use-page-private-instead-of-page-index-in-percpu
+++ a/mm/percpu.c
@@ -253,13 +253,13 @@ static int pcpu_chunk_slot(const struct
/* set the pointer to a chunk in a page struct */
static void pcpu_set_page_chunk(struct page *page, struct pcpu_chunk *pcpu)
{
- page->index = (unsigned long)pcpu;
+ page->private = (unsigned long)pcpu;
}
/* obtain pointer to a chunk from a page struct */
static struct pcpu_chunk *pcpu_get_page_chunk(struct page *page)
{
- return (struct pcpu_chunk *)page->index;
+ return (struct pcpu_chunk *)page->private;
}
static int __maybe_unused pcpu_page_idx(unsigned int cpu, int page_idx)
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
bootmem-stop-using-page-index.patch
mm-constify-page_address_in_vma.patch
mm-convert-page_to_pgoff-to-page_pgoff.patch
mm-mass-constification-of-folio-page-pointers.patch
mm-remove-references-to-page-index-in-huge_memoryc.patch
mm-use-page-private-instead-of-page-index-in-percpu.patch
