* [merged] mm-huge_memory-fix-can_split_huge_page-assumption-of-thp-size.patch removed from -mm tree
@ 2020-10-16 20:48 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-10-16 20:48 UTC (permalink / raw)
To: kirill.shutemov, mm-commits, sjpark, willy, ying.huang
The patch titled
Subject: mm/huge_memory: fix can_split_huge_page assumption of THP size
has been removed from the -mm tree. Its filename was
mm-huge_memory-fix-can_split_huge_page-assumption-of-thp-size.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: mm/huge_memory: fix can_split_huge_page assumption of THP size
Ask the page how many subpages it has instead of assuming it's PMD size.
Link: https://lkml.kernel.org/r/20200908195539.25896-8-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: SeongJae Park <sjpark@amazon.de>
Acked-by: "Huang, Ying" <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/huge_memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/huge_memory.c~mm-huge_memory-fix-can_split_huge_page-assumption-of-thp-size
+++ a/mm/huge_memory.c
@@ -2582,9 +2582,9 @@ bool can_split_huge_page(struct page *pa
/* Additional pins from page cache */
if (PageAnon(page))
- extra_pins = PageSwapCache(page) ? HPAGE_PMD_NR : 0;
+ extra_pins = PageSwapCache(page) ? thp_nr_pages(page) : 0;
else
- extra_pins = HPAGE_PMD_NR;
+ extra_pins = thp_nr_pages(page);
if (pextra_pins)
*pextra_pins = extra_pins;
return total_mapcount(page) == page_count(page) - extra_pins - 1;
_
Patches currently in -mm which might be from willy@infradead.org are
mm-update-the-documentation-for-vfree.patch
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2020-10-16 20:48 [merged] mm-huge_memory-fix-can_split_huge_page-assumption-of-thp-size.patch removed from -mm tree akpm
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