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 8711540855 for ; Tue, 31 Mar 2026 00:43:51 +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=1774917831; cv=none; b=Y1HI3TmaygkAc2dtKAIZzAiH0zAxtciSXzy08lW9253di19+ev9W8fxZhckhHU9PRlzu+eXRHLA60UEFUsCOXV8hLriA0oF2jQWHGcSHjjcr/izU5z63GMEZNmTz9GqQ/nFDPWDUswJPED+pTLHz1lP6cwBIXDnBWc/2uz/U5cM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774917831; c=relaxed/simple; bh=y1XAkYB77X3ZMHVVTHoWhHrte226FDQoKhvHXHNbaFo=; h=Date:To:From:Subject:Message-Id; b=juUUKzPcUScMQXeYiJSQroQc5vGMahGmERMOO5bTn9zlMX2MpYykhKxo5rq/tG9HSDXkfnm6y4ktLNCNb4esOhstUmEfMqnr5Hp2BvXL2Xyv22F44O+8IUktJZj3pm5asrYpfx3WEwgRZGHWoLyec0qsi7OzGDkus820k8267k0= 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=vklYkTzl; 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="vklYkTzl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5EF59C4CEF7; Tue, 31 Mar 2026 00:43:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774917831; bh=y1XAkYB77X3ZMHVVTHoWhHrte226FDQoKhvHXHNbaFo=; h=Date:To:From:Subject:From; b=vklYkTzlZI5mK+Ocslp5ehmKlNW3kth6ZsFLizUGj2iy/Va4gziF+SmLY33tlNwnh LhEd29WO8nlm90Vlj9a79yQcsOoFCmhtOMkuVCOvuuexua/RNElQdJmAI54o/TYidn ib44Zg7hYsLOIuhBB4BrvwjgXX8oUUwD2vhsoiBA= Date: Mon, 30 Mar 2026 17:43:50 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,zhengqi.arch@bytedance.com,surenb@google.com,ryan.roberts@arm.com,rppt@kernel.org,npache@redhat.com,mhocko@suse.com,liam.howlett@oracle.com,lance.yang@linux.dev,dev.jain@arm.com,david@kernel.org,baolin.wang@linux.alibaba.com,baohua@kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-huge_memory-remove-unnecessary-sanity-checks.patch removed from -mm tree Message-Id: <20260331004351.5EF59C4CEF7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/huge_memory: remove unnecessary sanity checks has been removed from the -mm tree. Its filename was mm-huge_memory-remove-unnecessary-sanity-checks.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: "Lorenzo Stoakes (Oracle)" Subject: mm/huge_memory: remove unnecessary sanity checks Date: Fri, 20 Mar 2026 18:07:25 +0000 These checks have been in place since 2014, I think we can safely assume that we are in a place where we don't need these as runtime checks. In addition there are 4 other invocations of folio_remove_rmap_pmd(), none of which make this assertion. If we need to add this assertion, it should be in folio_remove_rmap_pmd(), and as a VM_WARN_ON_ONCE(), however these seem superfluous so just remove them. Link: https://lkml.kernel.org/r/0c4c5ab247c90f80cf44718e8124b217d6a22544.1774029655.git.ljs@kernel.org Signed-off-by: Lorenzo Stoakes (Oracle) Reviewed-by: Suren Baghdasaryan Cc: Baolin Wang Cc: Barry Song Cc: David Hildenbrand Cc: Dev Jain Cc: Lance Yang Cc: Liam Howlett Cc: Michal Hocko Cc: Mike Rapoport Cc: Nico Pache Cc: Qi Zheng Cc: Ryan Roberts Cc: Zi Yan Signed-off-by: Andrew Morton --- mm/huge_memory.c | 2 -- 1 file changed, 2 deletions(-) --- a/mm/huge_memory.c~mm-huge_memory-remove-unnecessary-sanity-checks +++ a/mm/huge_memory.c @@ -2448,7 +2448,6 @@ bool zap_huge_pmd(struct mmu_gather *tlb flush_needed = true; folio_remove_rmap_pmd(folio, &folio->page, vma); - WARN_ON_ONCE(folio_mapcount(folio) < 0); } else if (pmd_is_valid_softleaf(orig_pmd)) { const softleaf_t entry = softleaf_from_pmd(orig_pmd); @@ -2479,7 +2478,6 @@ bool zap_huge_pmd(struct mmu_gather *tlb if (folio_is_device_private(folio)) { folio_remove_rmap_pmd(folio, &folio->page, vma); - WARN_ON_ONCE(folio_mapcount(folio) < 0); folio_put(folio); } _ Patches currently in -mm which might be from ljs@kernel.org are maintainers-update-mglru-entry-to-reflect-current-status.patch selftests-mm-add-merge-test-for-partial-msealed-range.patch