From nobody Mon Dec 15 21:42:43 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 2FD1922ACDB for ; Wed, 5 Feb 2025 09:27:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738747664; cv=none; b=nBztgI2VXED9xNs1RP0vOVYKDh2gsH5LaN/jUjfNoiEkGqrFFTLAu2QFNmjNXOark/XVnFvoySIPWJxdS76mE7jXXpzgH/4xCFCObpTvKrzi7jMVXmif56T7xqrCSoIFI+GulTC2nnzQoq6dNr98NCd4PcSa1Gb2flgWEecWNiU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738747664; c=relaxed/simple; bh=htxj+bWHENt32tzdhENMjig1Xiq7Vr7xxUAtVgbBj+c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-type; b=ixp9VOiZ3uA3B8gNaU1B1hM+WpuXY0BfrCmBtmdVvA3JkR95wxWiUSDDh8GYZfiFGWTgwDkg5g/X+F6KuL9ZK2hU7McliLqAt1LDqu3Dy0FlFnnSuoJMuPsZxYfXiNKWA4yAnW6Y4XMM5WLJC+Zgaa3rZavfFCvk6O9BtOkGyBg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=AUm5kpmL; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="AUm5kpmL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1738747661; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PEv2tk/qqvPIGyGgURFAveF2/GO9Pp83Lj9RTkxNFck=; b=AUm5kpmLadP+EmKsRtd/OaTyC53H4X3NU/+cghB0qvfp5T6JxhmD5rPLpFv/A8N4YlGbTU dm54aCfXhIsN8F49//Aaf8LAYXjdglT4xTt+8yrocK4YrCci9XnTrGnWR7Nt9OeIqYLlDw vywjPHz7tMj8ZmB4xc3nKSs0wVzO1s4= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-502-U3GOdD5xNBmPUDlD5LmxzQ-1; Wed, 05 Feb 2025 04:27:40 -0500 X-MC-Unique: U3GOdD5xNBmPUDlD5LmxzQ-1 X-Mimecast-MFC-AGG-ID: U3GOdD5xNBmPUDlD5LmxzQ Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id DD8991956086; Wed, 5 Feb 2025 09:27:38 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.72.112.190]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 01736300018D; Wed, 5 Feb 2025 09:27:34 +0000 (UTC) From: Baoquan He To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, akpm@linux-foundation.org, ryncsn@gmail.com, chrisl@kernel.org, Baoquan He Subject: [PATCH 02/12] mm/swap_state.c: optimize the code in clear_shadow_from_swap_cache() Date: Wed, 5 Feb 2025 17:27:11 +0800 Message-ID: <20250205092721.9395-3-bhe@redhat.com> In-Reply-To: <20250205092721.9395-1-bhe@redhat.com> References: <20250205092721.9395-1-bhe@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Content-Type: text/plain; charset="utf-8" Use ALIGN to achieve the same effect and simplify the code. Signed-off-by: Baoquan He --- mm/swap_state.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/swap_state.c b/mm/swap_state.c index 59acb55174c8..d7cbf5bb2450 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -270,9 +270,7 @@ void clear_shadow_from_swap_cache(int type, unsigned lo= ng begin, xa_unlock_irq(&address_space->i_pages); =20 /* search the next swapcache until we meet end */ - curr >>=3D SWAP_ADDRESS_SPACE_SHIFT; - curr++; - curr <<=3D SWAP_ADDRESS_SPACE_SHIFT; + curr =3D ALIGN((curr + 1), SWAP_ADDRESS_SPACE_PAGES); if (curr > end) break; } --=20 2.41.0