From patchwork Thu Feb 6 07:21:00 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchana P Sridhar X-Patchwork-Id: 862655 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (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 E57CA22653E; Thu, 6 Feb 2025 07:21:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738826480; cv=none; b=ZNxQsK0hJg/oebUEPklWv01Ss/S+lCLrfLwIhF3WjcPlxV75dEKfUFBjUy0Teyie6hGV7Z/oPp3P5A6bBBFZNcUvpRa7j5d6MCnhIL95PbzYYMB+AnnKvyxDsye0yTG39/nVIoYGnIC2tqQSXwZ5hoQ4HdAloolLeVeqrNpov44= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738826480; c=relaxed/simple; bh=iqZv8rJXdWI52EmscIRZweGSd8xTWCD0Rr/EovMHLuY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=XMXOs87u/SjyOMJRfNTq3GEBV6TgJrPhPq/kX0zYFN6mXjh/J1CeyEExT5ZDrQ2aTt1nZrgEES70Uf15irT9FYSSAc3F7UGhGOgCRKG4IyIopv7DbAgNkPk6n/GtNsPbK7fBHiHpILA0FwpE8fkWIm1zonAd5M4kNMgU5l/3r1Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eess9Iex; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eess9Iex" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1738826479; x=1770362479; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=iqZv8rJXdWI52EmscIRZweGSd8xTWCD0Rr/EovMHLuY=; b=eess9IexY9pUhwNnzWs41PRhnBZIipSIrnNB9kG6280M/tvM9YwCGI08 HrfDJgliSanxtGy6Mr8OnCQm34GFa5Yz4qpfzxqULOlpkMGGxUK7HDD1J 4tdlAa2ADarkexk/agX4Su9kTtgGP+fROPxScvf4QUKP1Y55PWihMUKyT ihyU88YiiPFTwGO+oyKr0FlkCzskD0Z1q9IaBJSwLwZPzZLznehIbAvly yw3pVDLti5mA5sS6EzZ5XiYT3LUJ2fpUPv+N9qV2NcT0iA1CnWofgn+Oz QzSOvseNzNrJT/LYprTVM9aSIILZHukkW4XXA9mK8E4Va6X105tMilI1a w==; X-CSE-ConnectionGUID: C+mUYK7ZTQyQYKKjjd77dQ== X-CSE-MsgGUID: swCcEsNBQ96kk12qjLy0pA== X-IronPort-AV: E=McAfee;i="6700,10204,11336"; a="56962734" X-IronPort-AV: E=Sophos;i="6.13,263,1732608000"; d="scan'208";a="56962734" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Feb 2025 23:21:06 -0800 X-CSE-ConnectionGUID: ILym3snHR9yvBXAi4N76GQ== X-CSE-MsgGUID: LTcU3nkoQeadkuMSgJpNTQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="112022646" Received: from jf5300-b11a338t.jf.intel.com ([10.242.51.115]) by orviesa008.jf.intel.com with ESMTP; 05 Feb 2025 23:21:06 -0800 From: Kanchana P Sridhar To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, usamaarif642@gmail.com, ryan.roberts@arm.com, 21cnbao@gmail.com, akpm@linux-foundation.org, linux-crypto@vger.kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, clabbe@baylibre.com, ardb@kernel.org, ebiggers@google.com, surenb@google.com, kristen.c.accardi@intel.com Cc: wajdi.k.feghali@intel.com, vinodh.gopal@intel.com, kanchana.p.sridhar@intel.com Subject: [PATCH v6 14/16] mm: zswap: Introduce zswap_compress_folio() to compress all pages in a folio. Date: Wed, 5 Feb 2025 23:21:00 -0800 Message-Id: <20250206072102.29045-15-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20250206072102.29045-1-kanchana.p.sridhar@intel.com> References: <20250206072102.29045-1-kanchana.p.sridhar@intel.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch encapsulates away the computes for compressing the pages in a folio and storing the compressed memory in zpool, into a distinct zswap_compress_folio() procedure. For now, zswap_compress_folio() simply calls zswap_compress() for each page in the folio it is called with. This facilitates adding compress batching in subsequent patches. Signed-off-by: Kanchana P Sridhar --- mm/zswap.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/mm/zswap.c b/mm/zswap.c index af682bf0f690..6563d12e907b 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -1509,6 +1509,22 @@ static void shrink_worker(struct work_struct *w) * main API **********************************/ +static bool zswap_compress_folio(struct folio *folio, + struct zswap_entry *entries[], + struct zswap_pool *pool) +{ + long index, nr_pages = folio_nr_pages(folio); + + for (index = 0; index < nr_pages; ++index) { + struct page *page = folio_page(folio, index); + + if (!zswap_compress(page, entries[index], pool)) + return false; + } + + return true; +} + /* * Store all pages in a folio. * @@ -1542,12 +1558,8 @@ static bool zswap_store_folio(struct folio *folio, entries[index]->handle = (unsigned long)ERR_PTR(-EINVAL); } - for (index = 0; index < nr_pages; ++index) { - struct page *page = folio_page(folio, index); - - if (!zswap_compress(page, entries[index], pool)) - goto store_folio_failed; - } + if (!zswap_compress_folio(folio, entries, pool)) + goto store_folio_failed; for (index = 0; index < nr_pages; ++index) { swp_entry_t page_swpentry = page_swap_entry(folio_page(folio, index));