From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 D8D11153835; Wed, 3 Apr 2024 17:15:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712164514; cv=none; b=psF7slTtBKI0gtnxEPv44+i6mPkufhzaFLdnxZd/eemMiYa1SDK439mQNBQep3WK0xFd0nXOaAD5SdBHVumvm3/TCptAiNezY81txfmwWMToCPNDBTFx1XGOyYSanIT4wNfef8rX2PuAseMcFMF2e77nl5VHHtvCSpDg8s7hlPo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712164514; c=relaxed/simple; bh=H11WHqcBlIxImUk5M/UEO4V3G5vefIJgZH6ETCuIO/Y=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=gQTS6msKT+lQaWwYgDJYK5X4D6VyS7WyQgNHFy7UHlHlIK9uRXVkfzobXgUu+BmCBSnw/p/Yf2g+N6twgL3fOML1hkFbii9b4iaEuB6MG2Ck3gUF2zEij5hZaWNSKPNVNhuR05jqjy0pSIMwXeqOeyUueSRggGeAZf1fHaU21Rs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=XIiojhO5; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="XIiojhO5" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=IpFAkuK5GrANAaP4NmnY/N+aubhDpK+1vnYlU3fSkMo=; b=XIiojhO5kzKUQnO5gfy73EzYel 0j7bndeBs0u1ixlvz+U8c/CjkZKaeZcdS1Yn4d3z3Yx/vNi8C9kGdCTSPx/7zVtph/0VubBldtien voFklC2HAuIv4NW4WJr2ePYZF1CMGxWWZEt3mFtY7FTYmVhzXNT5wFpd10P5lxXXXBxTS2n9PPmHw 820AXRPRR0Z9P3JIq6bqPesLm5g3t9g34W2I5FNcfMm+B4pgPTDu0aVL7Eba5ws7ZGdW4rBjWAGpF DxibgX4J9Z8low00bBHS+ItrUewlgDzRJcxz7GMZas7v5/vpM5XxiualDuXnfDcqosJ7dNoXpYWP6 ZlyproiA==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rs4CQ-000000063wV-0ND5; Wed, 03 Apr 2024 17:14:58 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton , Christian Brauner Cc: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 0/4] Use folio APIs in procfs Date: Wed, 3 Apr 2024 18:14:51 +0100 Message-ID: <20240403171456.1445117-1-willy@infradead.org> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Not sure whether Andrew or Christian will want to take this set of fixes. We're down to very few users of the PageFoo macros, with proc being a major user. After this patchset and another patchset I have for khugepaged, we can get rid of PageActive, PageReadahead and PageSwapBacked. This patchset has the usual advantages in its own right of removing hidden calls to compound_head(). We have the page table lock, so the mapcount & refcount are stable and there can't be any races with folios suddenly becoming tail pages. Matthew Wilcox (Oracle) (4): proc: Convert gather_stats to use a folio proc: Convert smaps_page_accumulate to use a folio proc: Pass a folio to smaps_page_accumulate() proc: Convert smaps_pmd_entry to use a folio fs/proc/task_mmu.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) -- 2.43.0