From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 412F525A2A7 for ; Tue, 7 Oct 2025 22:14:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759875282; cv=none; b=SsfeNuZFATaQGQkPcHFUol/OJcVqlZuXkgXP+PBy9HSofMFfL0D4E9xdqROJKwZgADe4wsZMtUOjpXLDQyA+aUF1QnSVwPyQWQiPW31xOywwiKV509g2ypLgV9pXSn/qpeAlwPoDlCajn1jraunrhIUDtUouxj+hGlrR9y9M1eI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759875282; c=relaxed/simple; bh=D88a6T3cHwEivrt11hcB7FfmUSn6F2rkXBumHlnlYb0=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Nxr4rPHdrouZWtLKXg5A+CeLSxL33GKvPLfgrh9V57bKRdKDDYA1Q3JqNa4Zy0m0GWmmxu8ghG4YfmXoZmpv4S21NDMa+K7zxymrelpNkaN19ARH0/7n03S60zhbJg6Jvl2JBoPgCDoPfrbS1YFZCexRJLh8tksijmPWlxL6HKA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=4xSXaeVQ; arc=none smtp.client-ip=209.85.216.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="4xSXaeVQ" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-32eb18b5500so9332177a91.2 for ; Tue, 07 Oct 2025 15:14:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1759875281; x=1760480081; darn=lists.linux.dev; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=5dmbXUVSLKd9bSlEnT0VG6XHvP3bFxOE7VRW3AC7JgU=; b=4xSXaeVQ2LUC5LS6yK3NOR0pVxLxfRrpx1TwoMuEfnePkfK+rdwShN9QTpn7Yti8Np osNGl/awjDBiy5Vn2Lsj3lNBSIOibs05EIiwT5SyY2IpYqWL35PPCWhVrZezWImUhQ4u Ad1Rbqe3rYm8xlTuvJCMYIook+FphVgWD7vcG2tqXmc1es47HfNpiRJXL9r5VnAtuRim rqFwBkIuLHImPeFFguxyRDMyDvhjua8BZ6NPhnPdkJo8EmC4WvXhlwfaM3UCCg6o48E5 jl9S67oZhlF0eHwk4+zETx2/FY+UB85auEooYJW4eMI9ZmfTD3HmrmysuQJV4RlmoJyf 4vlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759875281; x=1760480081; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=5dmbXUVSLKd9bSlEnT0VG6XHvP3bFxOE7VRW3AC7JgU=; b=NZlwtqeh4J/5idxxj5O/C/WxHnNfn/84Uxk0qGyGkBYFgI2nYioLkcAVc4PmuDkNRY TUlljmCmwozVXN4UqyozOGfZ+PDZ9JWCP/DGElfKnUse56/u3DxTqZuvajytSNTq1jbd PMC/nAQ8NnmUWBN9kOhqTOL+DIpPkw9CP68bBDTVANprYVeVyCdTzHMyKzLMgHdWtFPT xwfMvZicr63aTbZxjGX8UTX2gKk3D0rhU21cT5Z2PQK+hOMYrXMs/CGhFHdiSEhlVqGk SqU/Dxz8q1CGCcAcjVzpL0z5V6p0G6bBye8a3jbQHpMVJgjpO5Rb2/rgfNavlsqRA9ps 9XlQ== X-Forwarded-Encrypted: i=1; AJvYcCV7Wk3wCU/kjcrYA2x5YnLbIJWTAR87SwasQlWbJfRFCM+/V/XzKcc87an/BMmywMUNGNX5wfM=@lists.linux.dev X-Gm-Message-State: AOJu0YzWVI9no7F+LHayXfwLfpzBHDdNotSnbrRIV+uX5uPq0CB5l6y/ aGoDwCAasJ7i6SKFEyjcVHThy8U6jxWwkBEg99GL53zjtZVQwDXNMkIJV6YSXiBZQdiYZOpNIXO llqd7yw== X-Google-Smtp-Source: AGHT+IFtELfPuC1E9Gi/gZ0IIwRTquQz/eR0bBtgh0yn3iXudV5xJa4KSH0/8AxoiBoCF/S9YIizGIBH2jI= X-Received: from plow6.prod.google.com ([2002:a17:903:1b06:b0:290:28e2:ce51]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:f602:b0:274:9dae:6a6d with SMTP id d9443c01a7336-290272c1a67mr16678315ad.34.1759875280674; Tue, 07 Oct 2025 15:14:40 -0700 (PDT) Reply-To: Sean Christopherson Date: Tue, 7 Oct 2025 15:14:10 -0700 In-Reply-To: <20251007221420.344669-1-seanjc@google.com> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251007221420.344669-1-seanjc@google.com> X-Mailer: git-send-email 2.51.0.710.ga91ca5db03-goog Message-ID: <20251007221420.344669-3-seanjc@google.com> Subject: [PATCH v12 02/12] KVM: guest_memfd: Add macro to iterate over gmem_files for a mapping/inode From: Sean Christopherson To: Marc Zyngier , Oliver Upton , Paolo Bonzini , Sean Christopherson Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, David Hildenbrand , Fuad Tabba , Ackerley Tng , Shivank Garg , Ashish Kalra , Vlastimil Babka Content-Type: text/plain; charset="UTF-8" Add a kvm_gmem_for_each_file() to make it more obvious that KVM is iterating over guest_memfd _files_, not guest_memfd instances, as could be assumed given the name "gmem_list". No functional change intended. Signed-off-by: Sean Christopherson --- virt/kvm/guest_memfd.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c index 3c57fb42f12c..9b9e239b3073 100644 --- a/virt/kvm/guest_memfd.c +++ b/virt/kvm/guest_memfd.c @@ -22,6 +22,9 @@ struct gmem_file { struct list_head entry; }; +#define kvm_gmem_for_each_file(f, mapping) \ + list_for_each_entry(f, &(mapping)->i_private_list, entry) + /** * folio_file_pfn - like folio_file_page, but return a pfn. * @folio: The folio which contains this index. @@ -159,13 +162,12 @@ static void __kvm_gmem_invalidate_begin(struct gmem_file *f, pgoff_t start, static void kvm_gmem_invalidate_begin(struct inode *inode, pgoff_t start, pgoff_t end) { - struct list_head *gmem_list = &inode->i_mapping->i_private_list; enum kvm_gfn_range_filter attr_filter; struct gmem_file *f; attr_filter = kvm_gmem_get_invalidate_filter(inode); - list_for_each_entry(f, gmem_list, entry) + kvm_gmem_for_each_file(f, inode->i_mapping) __kvm_gmem_invalidate_begin(f, start, end, attr_filter); } @@ -184,10 +186,9 @@ static void __kvm_gmem_invalidate_end(struct gmem_file *f, pgoff_t start, static void kvm_gmem_invalidate_end(struct inode *inode, pgoff_t start, pgoff_t end) { - struct list_head *gmem_list = &inode->i_mapping->i_private_list; struct gmem_file *f; - list_for_each_entry(f, gmem_list, entry) + kvm_gmem_for_each_file(f, inode->i_mapping) __kvm_gmem_invalidate_end(f, start, end); } -- 2.51.0.710.ga91ca5db03-goog