From nobody Sun Feb 8 20:29:22 2026 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 4126125A2A5 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=kr1F9q8GBcTlDPJB9Lby4AQ6ttBlqsEZ53nEBK6a6cPX8KPvXzwxEe0HgbMoHCLLmTBzAk/iAJc5qGONqeQ70Mj99dKqTYwcW6jOzNxpCh8lnCBgLSt67PLIZU5Zp/5XfLRxUwgd1s17gt9WJng8YRU+mMU5o4hNEUacQCQXm94= 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=KNfUiqfu; 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="KNfUiqfu" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-33428befd39so12941521a91.0 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=vger.kernel.org; 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=KNfUiqfuB58nFu9qPb2P7wotXj46X72vhz+mYAy7yez0izig2Jd2gIBwSP+1G+imcI 80a6yPjWfCz11jgNha11Hhge8j9ABRCTL3tbq5YNNUG6ytsvtSANOqbCTBj6zK/hIbgE 2vsRSBQkaprW9vkcJqF2Q6wn/gQ2wjWJ66aGErNtN4/8bSTvvdyaXVipJSs2WaS4kdA3 wzZvF3q6zIW58SWnG+ry4sNKk2f9UnGQK+tMty2A2dPmLwWFZE1cEkzoLTvY16BrxQy3 2FoaDWVB5sOScOH2gjzVcF7SGF3emRGev2Dvt3RStJl/7rEucq1Thkkr1Hy6Dlh4qHWT 0T2g== 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=knDNY5WV4QYnUkCJvtWjKHKX0i3Ob+0aAftE5naXK9X6k2BXBwlo7QW2KsslDG8cpe MJGOKlYMOC6pbL3b13UbguEIUwmxPtVE4nkx0JPgdmYp13HdOEozPvPcR4o4m3UNTp1e PGIsZ/54snCLPmVbqRFSRfOqFcjhCzwzAsOU58176j93b45sQc4w/hTCNV7AHH9wa97F +cCMB/hNVbyQMhtyCnxZGKp2OoI9bzheKY2uwQMT3zx967vj3P7MLquWXtXdYYhoUWgx eueoBzmANuT5G7CWD+OEalGVhDBGAJDzTLKWSc02NqXKFUZ5Q0IFAcTWhzuK2CP96Mw8 mJrA== X-Forwarded-Encrypted: i=1; AJvYcCXCKMsWnIxIe75tSshuyhPrMrYqK262WrBAFaDiptfJExG1XP5xz5kevZTAbmmGUwqtBLipH+oieW77H00=@vger.kernel.org X-Gm-Message-State: AOJu0Yyp3k2jb91musy4B+JyNZa8+Fiq4omedwx/VDXWYLz6xPmsgzQV AKLHphBquDn7wjuwd/e3BFjz7HLkmiVQhaOWpCfW1tmm/bwmO27SB0OoaJkhuR/PGTOAtr2AfQ/ EDgfZLw== 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: linux-kernel@vger.kernel.org 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-Transfer-Encoding: quoted-printable 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 Reviewed-by: Ackerley Tng Reviewed-by: Shivank Garg Tested-by: Ackerley Tng --- 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; }; =20 +#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_f= ile *f, pgoff_t start, static void kvm_gmem_invalidate_begin(struct inode *inode, pgoff_t start, pgoff_t end) { - struct list_head *gmem_list =3D &inode->i_mapping->i_private_list; enum kvm_gfn_range_filter attr_filter; struct gmem_file *f; =20 attr_filter =3D kvm_gmem_get_invalidate_filter(inode); =20 - 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); } =20 @@ -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 =3D &inode->i_mapping->i_private_list; struct gmem_file *f; =20 - list_for_each_entry(f, gmem_list, entry) + kvm_gmem_for_each_file(f, inode->i_mapping) __kvm_gmem_invalidate_end(f, start, end); } =20 --=20 2.51.0.710.ga91ca5db03-goog