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authorMiaohe Lin <linmiaohe@huawei.com>2022-03-23 00:44:35 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-23 01:57:07 +0300
commita581865ecd0a5a0b8464d6f1e668ae6681c1572f (patch)
tree6048c1370fdd028d364da3997ad30c7b1f584994 /mm/page_alloc.c
parentb04d3eebebf8372f83924db6c1e4fbdcab7cafc2 (diff)
downloadlinux-a581865ecd0a5a0b8464d6f1e668ae6681c1572f.tar.xz
mm/hwpoison-inject: support injecting hwpoison to free page
memory_failure() can handle free buddy page. Support injecting hwpoison to free page by adding is_free_buddy_page check when hwpoison filter is disabled. [akpm@linux-foundation.org: export is_free_buddy_page() to modules] Link: https://lkml.kernel.org/r/20220218092052.3853-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e36d7631a64c..a573aa9f5160 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -9417,6 +9417,7 @@ bool is_free_buddy_page(struct page *page)
return order < MAX_ORDER;
}
+EXPORT_SYMBOL(is_free_buddy_page);
#ifdef CONFIG_MEMORY_FAILURE
/*