From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DEAF82BE034 for ; Sat, 13 Sep 2025 22:23:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757802194; cv=none; b=jxMEUuJIm22N48Swq6VeensO186Dbarg4qKxwdFyKQWiZw0FmB28ivKnu0tXfwNnZT3FyZBA0T2LpEMhsK6OajUx5Sz7dJh4UZlG3iO55DTBv9Oa8adADh+Cn1mpauoY5DJFnWfF04qRHqA5GoJlO4nvhXBSx2mcRgkZ3F/myBs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757802194; c=relaxed/simple; bh=bTW9e4yhIfLUqHabkMBrplfzg7SrLWlOprQ1jfl4ISk=; h=Date:To:From:Subject:Message-Id; b=X86hlhTyhqJ0rQCZEpH1nwAWT36WKT6UYokErhnmCN9DGO97bmmBGhjhSiBGOnknN0PECq0mXzPfu9xVnO6/7lmS8+ojPoKpXvbPrhAEXJ+63hBCcE7eYrO9yTXlQG2K1zXhRSqgtaYZ/x3ETRiDST+jnKNI+7++VW1vBNZKHuI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=p6JD+zAc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="p6JD+zAc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B27C0C4CEEB; Sat, 13 Sep 2025 22:23:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1757802193; bh=bTW9e4yhIfLUqHabkMBrplfzg7SrLWlOprQ1jfl4ISk=; h=Date:To:From:Subject:From; b=p6JD+zAczjkQpJRz/B0Jh/XzNa5DnwzQh24qFyowE63Rq0MsfoLYHVHubVXTED0pf ZuX/oDUaHy3R73cOQLblcapuBVg4295yzZKM1U6jAlhV73OwBCQE40+QFQqU5y7TBq G2vnWkEXvxxkEYsgkbSjLzp3sutO8Caf0VZ6S8Eo= Date: Sat, 13 Sep 2025 15:23:13 -0700 To: mm-commits@vger.kernel.org,david@redhat.com,ziy@nvidia.com,akpm@linux-foundation.org From: Andrew Morton Subject: [folded-merged] selftests-mm-reimplement-is_backed_by_thp-with-more-precise-check-fix.patch removed from -mm tree Message-Id: <20250913222313.B27C0C4CEEB@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: fixup: selftests/mm: use nr_pages instead of 1UL << order has been removed from the -mm tree. Its filename was selftests-mm-reimplement-is_backed_by_thp-with-more-precise-check-fix.patch This patch was dropped because it was folded into selftests-mm-reimplement-is_backed_by_thp-with-more-precise-check.patch ------------------------------------------------------ From: Zi Yan Subject: fixup: selftests/mm: use nr_pages instead of 1UL << order Date: Tue, 19 Aug 2025 12:52:13 -0400 reduce code duplication, per David Link: https://lkml.kernel.org/r/F54782D6-65A3-4D35-AE03-8ADE636EE258@nvidia.com Signed-off-by: Zi Yan Cc: David Hildenbrand Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/split_huge_page_test.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/tools/testing/selftests/mm/split_huge_page_test.c~selftests-mm-reimplement-is_backed_by_thp-with-more-precise-check-fix +++ a/tools/testing/selftests/mm/split_huge_page_test.c @@ -38,6 +38,7 @@ unsigned int pmd_order; static bool is_backed_by_folio(char *vaddr, int order, int pagemap_fd, int kpageflags_fd) { + const unsigned long nr_pages = 1UL << order; unsigned long pfn_head; uint64_t pfn_flags; unsigned long pfn; @@ -63,7 +64,7 @@ static bool is_backed_by_folio(char *vad if (!(pfn_flags & KPF_THP)) return false; - pfn_head = pfn & ~((1 << order) - 1); + pfn_head = pfn & ~(nr_pages - 1); if (pageflags_get(pfn_head, kpageflags_fd, &pfn_flags)) goto fail; @@ -73,7 +74,7 @@ static bool is_backed_by_folio(char *vad return false; /* check all tail PFN flags */ - for (i = 1; i < 1UL << order; i++) { + for (i = 1; i < nr_pages; i++) { if (pageflags_get(pfn_head + i, kpageflags_fd, &pfn_flags)) goto fail; if (!(pfn_flags & (KPF_THP | KPF_COMPOUND_TAIL))) @@ -84,7 +85,7 @@ static bool is_backed_by_folio(char *vad * check the PFN after this folio, but if its flags cannot be obtained, * assume this folio has the expected order */ - if (pageflags_get(pfn_head + (1UL << order), kpageflags_fd, &pfn_flags)) + if (pageflags_get(pfn_head + nr_pages, kpageflags_fd, &pfn_flags)) return true; /* this folio is bigger than the given order */ _ Patches currently in -mm which might be from ziy@nvidia.com are mm-huge_memory-add-new_order-and-offset-to-split_huge_pages-pr_debug.patch selftests-mm-mark-all-functions-static-in-split_huge_page_testc.patch selftests-mm-reimplement-is_backed_by_thp-with-more-precise-check.patch selftests-mm-add-check_after_split_folio_orders-helper.patch selftests-mm-check-after-split-folio-orders-in-split_huge_page_test.patch