From patchwork Wed Apr 18 19:19:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Souptick Joarder X-Patchwork-Id: 900315 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="ZpEBJfzF"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40RBjW1TWPz9s1j for ; Thu, 19 Apr 2018 05:18:23 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752241AbeDRTSH (ORCPT ); Wed, 18 Apr 2018 15:18:07 -0400 Received: from mail-pg0-f66.google.com ([74.125.83.66]:44246 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752166AbeDRTSG (ORCPT ); Wed, 18 Apr 2018 15:18:06 -0400 Received: by mail-pg0-f66.google.com with SMTP id l12so1302512pgp.11; Wed, 18 Apr 2018 12:18:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=qPtHleo46erNMBaBUgS9OFeBPEQXjyhU5n1oXAAF5ts=; b=ZpEBJfzF1idN+Yin1ff8cicuuq/APHUPCpm/da3gtl5huoLm7WnvJlGOamNNZwroqG 4VuUO6TdYwc7mK+TzzYw+h2efZ5Ce3QtdSYnqKRkQbg4VPndpj7KMFwGjIhdUGH/doaZ karjepdNWzIvw146Vt9UIW39h8ASQLhGPRW2Kw3NtYW8hilpb1pOEsrAN5U3fDOcWgeJ hon947d64JeMhh2BNr940N+vLY5+Nl5jtUEr+SP107pmfaqLiUCbgfB357yo+YNgHjAM OLEJWBU1EgOgeQZxpayhYVTAvBzcm9aJ/BqlU30cMMQC10I8DNTJYFYDEdoEzEc+bJzJ NNTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=qPtHleo46erNMBaBUgS9OFeBPEQXjyhU5n1oXAAF5ts=; b=m8VC+XUhDDd6N0YXm9DAHHzpegtR02YaruPmhzfegziL4w/PEq0vdokBc4VDXZPgPJ OqUICKCKwCjh/wN61jcTvnA61aaDuMjL+4MT+bzl+CDRGIFTDNSMxljkYaICBLb4ix6k LOebcFIiv8I1zMNbyzLQgc2pTf7FS6WdaqgrznNHz9O1G9eZZPVV9TQ4Epa6b4k0fDgE inaEeA1ziXmYLicwENeV9+NFjMElgWXjpqnE6d8qwg4KtWatlOZdGjh1NweSPvWS/97T QoE9f9Dvinx2ft5gLlkekcgJrKA6P9JJ3olGpqR7u8lWffXIi/J6vqZ/+ErupxaZepZE LBOg== X-Gm-Message-State: ALQs6tDqtyFsIUe2ajIErGgxVYVwRRnLv7znaCubXK8c4y5/OWT8prPJ LyNk0xJ9uTqZYNkPKCPJSPc= X-Google-Smtp-Source: AIpwx48dX2ZRzHspdQAU2kuOSg1uldhsK0KzPFdqDl3zBQ/GavQwU8frhi+DKsv62gIIrwEgNbZc6A== X-Received: by 10.99.175.68 with SMTP id s4mr2605197pgo.295.1524079084750; Wed, 18 Apr 2018 12:18:04 -0700 (PDT) Received: from jordon-HP-15-Notebook-PC ([183.82.19.82]) by smtp.gmail.com with ESMTPSA id y6sm2998256pgr.44.2018.04.18.12.18.02 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 18 Apr 2018 12:18:03 -0700 (PDT) Date: Thu, 19 Apr 2018 00:49:58 +0530 From: Souptick Joarder To: jhogan@kernel.org, ralf@linux-mips.org, paulus@ozlabs.org, benh@kernel.crashing.org, mpe@ellerman.id.au, borntraeger@de.ibm.com, frankja@linux.vnet.ibm.com, david@redhat.com, cohuck@redhat.com, schwidefsky@de.ibm.com, pbonzini@redhat.com, tglx@linutronix.de, mingo@redhat.com, christoffer.dall@linaro.org, marc.zyngier@arm.com Cc: linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, willy@infradead.org Subject: [PATCH] kvm: Change return type to vm_fault_t Message-ID: <20180418191958.GA25806@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. commit 1c8f422059ae ("mm: change return type to vm_fault_t") Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Reviewed-by: Cornelia Huck --- arch/mips/kvm/mips.c | 2 +- arch/powerpc/kvm/powerpc.c | 2 +- arch/s390/kvm/kvm-s390.c | 2 +- arch/x86/kvm/x86.c | 2 +- include/linux/kvm_host.h | 2 +- virt/kvm/arm/arm.c | 2 +- virt/kvm/kvm_main.c | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 2549fdd..03e0e0f 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1076,7 +1076,7 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) return -ENOIOCTLCMD; } -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) { return VM_FAULT_SIGBUS; } diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 403e642..3099dee 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -1825,7 +1825,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, return r; } -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) { return VM_FAULT_SIGBUS; } diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ba4c709..24af487 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -3941,7 +3941,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, return r; } -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) { #ifdef CONFIG_KVM_S390_UCONTROL if ((vmf->pgoff == KVM_S390_SIE_PAGE_OFFSET) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c8a0b54..95d8102 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3827,7 +3827,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, return r; } -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) { return VM_FAULT_SIGBUS; } diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ac0062b..8eeb062 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -736,7 +736,7 @@ long kvm_arch_dev_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); long kvm_arch_vcpu_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf); int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext); diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index 86941f6..6c8cc31 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -163,7 +163,7 @@ int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) return 0; } -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) { return VM_FAULT_SIGBUS; } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 4501e65..45eb54b 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2341,7 +2341,7 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode) } EXPORT_SYMBOL_GPL(kvm_vcpu_on_spin); -static int kvm_vcpu_fault(struct vm_fault *vmf) +static vm_fault_t kvm_vcpu_fault(struct vm_fault *vmf) { struct kvm_vcpu *vcpu = vmf->vma->vm_file->private_data; struct page *page;