From: Liu Shixin Date: Thu, 7 Mar 2024 12:48:41 +0000 (+0800) Subject: mm/memory-failure: fix an incorrect use of tail pages X-Git-Tag: v5.10.215~140 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=38753f1adaf570d3c288034eadbb63a14d2ab69c;p=thirdparty%2Fkernel%2Fstable.git mm/memory-failure: fix an incorrect use of tail pages 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/mm/memory-failure.c b/mm/memory-failure.c index f320ff02cc196..dba2936292cf1 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)