diff options
| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-03-23 00:44:47 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-23 01:57:07 +0300 |
| commit | 593396b86ef6f79c71e09c183eae28040ccfeedf (patch) | |
| tree | 3fcb006fe4f084695565f1ac0e77d30cfc64868d /mm/memory-failure.c | |
| parent | 888af2701db79b9b27c7e37f9ede528a5ca53b76 (diff) | |
| download | linux-593396b86ef6f79c71e09c183eae28040ccfeedf.tar.xz | |
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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 7ec855149393..47be518f075e 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -2184,7 +2184,7 @@ static int __soft_offline_page(struct page *page) 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. |