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 04D4621257F for ; Mon, 16 Feb 2026 16:52:27 +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=1771260747; cv=none; b=TsLYA0bMRVBZn6iZHwbHjdmHn0RWOZQgd8Uw7bi9u/e9hkM+LwhETm123UcwcUBL1Jdpbvk3fgaJ4UmGT6b8nB+qdCMysH94aYJdwyk/wXugEHIA8GnnGcRNHMtP7fMdE/ak4hBN2657CH0h1rzS7VAqajH/gruFGZv7N+xk8kI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771260747; c=relaxed/simple; bh=wMcKFT43k/vYiLzBdyULbl1qDqzVlZlTmTcgf1CO73s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YRwbkWu6yHpdQPUDCO81SvXHc9ih+pvS4p/dSOA8NYoYw5uIGj0uWtHbJFz7wIfv+QRqI+Y8d1bJK0HC+BQjYwTFxrGu9xYRKsDTq6eaomef6sZ6CIK8q9ffHhitL2LzDdHMT4gw+rvKe8EtRHEOU+PScM1I/i0unAkH5zf8znQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=T/a1lnT+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="T/a1lnT+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EA593C116C6; Mon, 16 Feb 2026 16:52:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771260746; bh=wMcKFT43k/vYiLzBdyULbl1qDqzVlZlTmTcgf1CO73s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T/a1lnT+jbhTzempmfQ9u1WAyfOCs8kHCCxzTZbqX3D3pNVmJqUIGD9CI+zq+bVuv 90yhzvjJoNgfVZn5C4Hm+XYnVNEFzdCjVKZ6WPMZvU4zTtOSzEuBOppQUvAeUIm6zl d3pdPQlOfFHuPTlLyc4VfWWPL6mhvdpX/muH/+/wAS3Q4NNkk3xQJUhaoxx+oCELea eU8e2cFibuNnRxqnU4FPVBUSA/lopAm/t2/mrh8zuUIkMvb/rUbUgiycUE/Yw5wLyV dm7VhwnBouJdGUFqMcW1K6oSdZFv8GvH5MwCsx90M9lzqiA6iL4DTtTQ08lWqE6BXG M05HTbf2018aw== From: "David Hildenbrand (Arm)" To: stable@vger.kernel.org Cc: "David Hildenbrand (Arm)" Subject: [PATCH 6.12.y 0/4] mm/hugetlb: fixes for PMD table sharing (incl. using mmu_gather) Date: Mon, 16 Feb 2026 17:52:08 +0100 Message-ID: <20260216165213.225922-1-david@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <2026012600-amusable-mutilator-97ce@gregkh> References: <2026012600-amusable-mutilator-97ce@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Backport of [1] for 6.12. While "mm/rmap: fix two comments related to huge_pmd_unshare()" was already backported, "mm/hugetlb: fix copy_hugetlb_page_range() to use ->pt_share_count" wasn't. Only contextual conflicts. Backport of "mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather" is the same as for 6.10. [1] https://lore.kernel.org/linux-mm/20251223214037.580860-1-david@kernel.org/ David Hildenbrand (Arm) (1): mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather David Hildenbrand (Red Hat) (2): mm/hugetlb: fix hugetlb_pmd_shared() mm/hugetlb: fix two comments related to huge_pmd_unshare() Jane Chu (1): mm/hugetlb: fix copy_hugetlb_page_range() to use ->pt_share_count include/asm-generic/tlb.h | 77 +++++++++++++++++++- include/linux/hugetlb.h | 17 +++-- include/linux/mm_types.h | 6 ++ mm/hugetlb.c | 146 ++++++++++++++++++++------------------ mm/mmu_gather.c | 33 +++++++++ mm/rmap.c | 25 ++++--- 6 files changed, 219 insertions(+), 85 deletions(-) -- 2.43.0