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From: Jane Chu <jane.chu@oracle.com>
To: linmiaohe@huawei.com, nao.horiguchi@gmail.com, akpm@linux-foundation.org,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] mm/madvise: Add MF_ACTION_REQUIRED to madvise(MADV_HWPOISON)
Date: Wed,  1 May 2024 17:24:57 -0600
Message-Id: <20240501232458.3919593-3-jane.chu@oracle.com>
In-Reply-To: <20240501232458.3919593-1-jane.chu@oracle.com>
References: <20240501232458.3919593-1-jane.chu@oracle.com>
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The soft hwpoison injector via madvise(MADV_HWPOISON) operates in
a synchrous way in a sense, the injector is also a process under
test, and should it have the poisoned page mapped in its address
space, it should legitimately get killed as much as in a real UE
situation.

Signed-off-by: Jane Chu <jane.chu@oracle.com>
---
 mm/madvise.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index 1a073fcc4c0c..eaeae5252c02 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1127,7 +1127,7 @@ static int madvise_inject_error(int behavior,
 		} else {
 			pr_info("Injecting memory failure for pfn %#lx at process virtual address %#lx\n",
 				 pfn, start);
-			ret = memory_failure(pfn, MF_COUNT_INCREASED | MF_SW_SIMULATED);
+			ret = memory_failure(pfn, MF_ACTION_REQUIRED | MF_COUNT_INCREASED | MF_SW_SIMULATED);
 			if (ret == -EOPNOTSUPP)
 				ret = 0;
 		}
-- 
2.39.3