5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Liu Shixin liushixin2@huawei.com
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@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- mm/memory-failure.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1075,7 +1075,7 @@ static bool hwpoison_user_mappings(struc unmap_success = false; } } else { - unmap_success = try_to_unmap(p, ttu); + unmap_success = try_to_unmap(hpage, ttu); } } if (!unmap_success)