+ mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages.patch added to -mm tree

* + mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages.patch added to -mm tree
@ 2022-03-12 20:38 Andrew Morton
  0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2022-03-12 20:38 UTC (permalink / raw)
  To: mm-commits, tony.luck, shy828301, naoya.horiguchi, mike.kravetz,
	bp, linmiaohe, akpm


The patch titled
     Subject: mm/memory-failure.c: avoid calling invalidate_inode_page() with unexpected pages
has been added to the -mm tree.  Its filename is
     mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages.patch

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------------------------------------------------------
From: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm/memory-failure.c: avoid calling invalidate_inode_page() with unexpected pages

Since commit 042c4f32323b ("mm/truncate: Inline invalidate_complete_page()
into its one caller"), invalidate_inode_page() can invalidate the pages in
the swap cache because the check of page->mapping != mapping is removed. 
But invalidate_inode_page() is not expected to deal with the pages in swap
cache.  Also non-lru movable page can reach here too.  They're not page
cache pages.  Skip these pages by checking PageSwapCache and PageLRU.

Link: https://lkml.kernel.org/r/20220312074613.4798-3-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory-failure.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/memory-failure.c~mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages
+++ a/mm/memory-failure.c
@@ -2184,7 +2184,7 @@ static int __soft_offline_page(struct pa
 		return 0;
 	}
 
-	if (!PageHuge(page))
+	if (!PageHuge(page) && PageLRU(page) && !PageSwapCache(page))
 		/*
 		 * Try to invalidate first. This should work for
 		 * non dirty unmapped page cache pages.
_

Patches currently in -mm which might be from linmiaohe@huawei.com are

mm-memremap-avoid-calling-kasan_remove_zero_shadow-for-device-private-memory.patch
filemap-remove-find_get_pages.patch
mm-writeback-minor-clean-up-for-highmem_dirtyable_memory.patch
mm-use-helper-function-range_in_vma.patch
mm-use-helper-macro-min-and-max-in-unmap_mapping_range_tree.patch
mm-mmap-remove-obsolete-comment-in-ksys_mmap_pgoff.patch
mm-sparse-make-mminit_validate_memmodel_limits-static.patch
mm-vmalloc-remove-unneeded-function-forward-declaration.patch
mm-mmzoneh-remove-unused-macros.patch
mm-memory-failurec-minor-clean-up-for-memory_failure_dev_pagemap.patch
mm-memory-failurec-catch-unexpected-efault-from-vma_address.patch
mm-memory-failurec-rework-the-signaling-logic-in-kill_proc.patch
mm-memory-failurec-fix-race-with-changing-page-more-robustly.patch
mm-memory-failurec-remove-pageslab-check-in-hwpoison_filter_dev.patch
mm-memory-failurec-rework-the-try_to_unmap-logic-in-hwpoison_user_mappings.patch
mm-memory-failurec-remove-obsolete-comment-in-__soft_offline_page.patch
mm-memory-failurec-remove-unnecessary-pagetranstail-check.patch
mm-hwpoison-inject-support-injecting-hwpoison-to-free-page.patch
mm-memory-failurec-fix-race-with-changing-page-compound-again.patch
mm-memory-failurec-avoid-calling-invalidate_inode_page-with-unexpected-pages.patch
mm-memory-failurec-make-non-lru-movable-pages-unhandlable.patch
mm-mlock-fix-potential-imbalanced-rlimit-ucounts-adjustment.patch
mm-hugetlb-use-helper-macro-__attr_rw.patch
mm-remove-unneeded-local-variable-follflags-v2.patch
mm-mempolicy-fix-potential-mpol_new-leak-in-shared_policy_replace.patch
mm-oom_kill-remove-unneeded-is_memcg_oom-check.patch
mm-ksm-use-helper-macro-__attr_rw.patch
mm-madvise-use-vma_lookup-instead-of-find_vma.patch
mm-memory_hotplug-remove-obsolete-comment-of-__add_pages.patch
mm-memory_hotplug-avoid-calling-zone_intersects-for-zone_normal.patch
mm-memory_hotplug-clean-up-try_offline_node.patch
mm-memory_hotplug-fix-misplaced-comment-in-offline_pages.patch
mm-highmem-remove-unnecessary-done-label.patch
mm-hmmc-remove-unneeded-local-variable-ret.patch
kernel-ksysfsc-use-helper-macro-__attr_rw.patch
kernel-resource-fix-kfree-of-bootmem-memory-again.patch
mm-huge_memory-make-is_transparent_hugepage-static.patch


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