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* [folded-merged] mm-handle-page-mapping-better-in-dump_page-fix.patch removed from -mm tree
@ 2020-08-07  5:49 akpm
  0 siblings, 0 replies; only message in thread
From: akpm @ 2020-08-07  5:49 UTC (permalink / raw)
  To: akpm, jhubbard, kirill, mm-commits, rppt, vbabka,
	william.kucharski, willy


The patch titled
     Subject: mm-handle-page-mapping-better-in-dump_page-fix
has been removed from the -mm tree.  Its filename was
     mm-handle-page-mapping-better-in-dump_page-fix.patch

This patch was dropped because it was folded into mm-handle-page-mapping-better-in-dump_page.patch

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-handle-page-mapping-better-in-dump_page-fix

augmented code comment from John

Link: http://lkml.kernel.org/r/15cff11a-6762-8a6a-3f0e-dd227280cd6f@nvidia.com
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/debug.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/mm/debug.c~mm-handle-page-mapping-better-in-dump_page-fix
+++ a/mm/debug.c
@@ -69,7 +69,13 @@ void __dump_page(struct page *page, cons
 	}
 
 	if (page < head || (page >= head + MAX_ORDER_NR_PAGES)) {
-		/* Corrupt page, cannot call page_mapping */
+		/*
+		 * Corrupt page, so we cannot call page_mapping. Instead, do a
+		 * safe subset of the steps that page_mapping() does. Caution:
+		 * this will be misleading for tail pages, PageSwapCache pages,
+		 * and potentially other situations. (See the page_mapping()
+		 * implementation for what's missing here.)
+		 */
 		unsigned long tmp = (unsigned long)page->mapping;
 
 		if (tmp & PAGE_MAPPING_ANON)
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-handle-page-mapping-better-in-dump_page.patch
mm-thp-replace-http-links-with-https-ones-fix.patch
mm.patch
mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix.patch
mm-memcg-percpu-account-percpu-memory-to-memory-cgroups-fix-fix.patch
mm-hugetlb-add-mempolicy-check-in-the-reservation-routine-fix.patch
mm-vmstat-add-events-for-thp-migration-without-split-fix.patch
mm-vmstat-fix-proc-sys-vm-stat_refresh-generating-false-warnings-fix-2.patch
mm-migrate-clear-__gfp_reclaim-to-make-the-migration-callback-consistent-with-regular-thp-allocations-fix.patch
mm-migrate-make-a-standard-migration-target-allocation-function-fix.patch
mm-madvise-introduce-process_madvise-syscall-an-external-memory-hinting-api-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch


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2020-08-07  5:49 [folded-merged] mm-handle-page-mapping-better-in-dump_page-fix.patch removed from -mm tree akpm

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