When backport commit c79c5a0a00a9 to 5.10-stable, there is a mistake change.
The head page instead of tail page should be passed to try_to_unmap(),
otherwise unmap will failed as follows.
Memory failure: 0x121c10: failed to unmap page (mapcount=1)
Memory failure: 0x121c10: recovery action for unmapping failed page: Ignored
Fixes: 70168fdc743b ("mm/memory-failure: check the mapcount of the precise page")
Signed-off-by: Liu Shixin <liushixin2@xxxxxxxxxx>
---
mm/memory-failure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index f320ff02cc19..dba2936292cf 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1075,7 +1075,7 @@ static bool hwpoison_user_mappings(struct page *p, unsigned long pfn,
unmap_success = false;
}
} else {
- unmap_success = try_to_unmap(p, ttu);
+ unmap_success = try_to_unmap(hpage, ttu);
}
}
if (!unmap_success)
--
2.25.1
