From nobody Sun Feb 8 01:32:32 2026 Received: from out30-118.freemail.mail.aliyun.com (out30-118.freemail.mail.aliyun.com [115.124.30.118]) (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 C9DFE1C9DFB for ; Wed, 7 Aug 2024 07:31:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.118 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723015901; cv=none; b=t/ZNLp/hk5jdsvx8VBv51ueibYE1tYFS7rn87rsc1B2oZJstO2dAA+BP792sHmBfM9196q4yG3rAwd1VQoXXMdUvkhBkbHVEzGvLFCH4TjsWuzU0N+M2aNzMM2nXKgbJidQn5pp0eY+As93QK72v8q15HDa5RqGerhlNPGt7WP8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723015901; c=relaxed/simple; bh=dSE5A1i/0Mslp7rR8GV63PP8IIVhz1+IlrL/SE1zme0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ukbyjQAaCO9vp1vxrbkTpdfMSGzrOGb75MgIOfqoy7jj3zG3xLhSnhVpmtlOWXftlvrMEs79eGDoWKmsW/B5aPsJGRtOH2OgeU8poChUixthMJ7BMyU5m+EjdJqMEMsVYh8iKguKQOuvDQ7IwGHThMVhpV4rqKHAcJHd7e/u1IU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=uhltO+8+; arc=none smtp.client-ip=115.124.30.118 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="uhltO+8+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1723015892; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=2cIcVzSoLVgPRYlybE3t8RKibMfrcxZj8JgqApi1OSo=; b=uhltO+8+NVKmhasLJD9G+lf0M8NGTlTNfyyRqb5yiJAwaPGAIhzV1PkDzsHyF0tR5O2uvxsc4sYSgXTo6mIuXunS/7NHbcWKeLR0pR7rkrew9HdLR5v4ryG5wGch6Qt7T9zkwmez1OU47BsmTU44fI2T0jxIjBK071+q3ZWfC2w= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R751e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037067110;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=17;SR=0;TI=SMTPD_---0WCI1Szl_1723015889; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0WCI1Szl_1723015889) by smtp.aliyun-inc.com; Wed, 07 Aug 2024 15:31:30 +0800 From: Baolin Wang To: akpm@linux-foundation.org, hughd@google.com Cc: willy@infradead.org, david@redhat.com, wangkefeng.wang@huawei.com, chrisl@kernel.org, ying.huang@intel.com, 21cnbao@gmail.com, ryan.roberts@arm.com, shy828301@gmail.com, ziy@nvidia.com, ioworker0@gmail.com, da.gomez@samsung.com, p.raghav@samsung.com, baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 03/10] mm: shmem: extend shmem_partial_swap_usage() to support large folio swap Date: Wed, 7 Aug 2024 15:31:08 +0800 Message-Id: <2e0b4bc7877784348409900f81cb4b8bdafd7b57.1723012159.git.baolin.wang@linux.alibaba.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: References: 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 Content-Type: text/plain; charset="utf-8" To support shmem large folio swapout in the following patches, using xa_get_order() to get the order of the swap entry to calculate the swap usage of shmem. Signed-off-by: Baolin Wang --- mm/shmem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/shmem.c b/mm/shmem.c index 22cdc10f27ea..02fb188d627f 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -890,7 +890,7 @@ unsigned long shmem_partial_swap_usage(struct address_s= pace *mapping, if (xas_retry(&xas, page)) continue; if (xa_is_value(page)) - swapped++; + swapped +=3D 1 << xa_get_order(xas.xa, xas.xa_index); if (xas.xa_index =3D=3D max) break; if (need_resched()) { --=20 2.39.3