From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glauber Costa Subject: [PATCH 04/28] x86: Add flush_write_buffers in nommu functions Date: Tue, 8 Apr 2008 13:20:46 -0300 Message-ID: <12076716961715-git-send-email-gcosta@redhat.com> References: <12076716702129-git-send-email-gcosta@redhat.com> Cc: akpm@linux-foundation.org, glommer@gmail.com, mingo@elte.hu, tglx@linutronix.de, kvm-devel@lists.sourceforge.net, amit.shah@qumranet.com, avi@qumranet.com, Glauber Costa To: linux-kernel@vger.kernel.org Return-path: In-Reply-To: <12076716702129-git-send-email-gcosta@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org This patch adds flush_write_buffers() in some functions of pci-nommu_64.c They are added anywhere i386 would also have it. This is not a problem for x86_64, since flush_rite_buffers() an nop for it. Signed-off-by: Glauber Costa --- arch/x86/kernel/pci-nommu_64.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/pci-nommu_64.c b/arch/x86/kernel/pci-nommu_64.c index a4e8ccf..1da9cf9 100644 --- a/arch/x86/kernel/pci-nommu_64.c +++ b/arch/x86/kernel/pci-nommu_64.c @@ -32,6 +32,7 @@ nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, dma_addr_t bus = paddr; if (!check_addr("map_single", hwdev, bus, size)) return bad_dma_address; + flush_write_buffers(); return bus; } @@ -64,6 +65,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, return 0; s->dma_length = s->length; } + flush_write_buffers(); return nents; } -- 1.5.0.6