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Tsirkin" To: Pasha Tatashin Cc: akpm@linux-foundation.org, alex.williamson@redhat.com, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jasowang@redhat.com, jernej.skrabec@gmail.com, jgg@ziepe.ca, jonathanh@nvidia.com, joro@8bytes.org, kevin.tian@intel.com, krzysztof.kozlowski@linaro.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, m.szyprowski@samsung.com, netdev@vger.kernel.org, paulmck@kernel.org, rdunlap@infradead.org, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, virtualization@lists.linux.dev, wens@csie.org, will@kernel.org, yu-cheng.yu@intel.com Subject: Re: [PATCH 15/16] vhost-vdpa: account iommu allocations Message-ID: <20231225110930-mutt-send-email-mst@kernel.org> References: <20231128204938.1453583-1-pasha.tatashin@soleen.com> <20231128204938.1453583-16-pasha.tatashin@soleen.com> MIME-Version: 1.0 In-Reply-To: <20231128204938.1453583-16-pasha.tatashin@soleen.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: 3D94940019 X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: 4rg5mj9u4fpd3qpmeq5f7m3mk34m9msb X-HE-Tag: 1703520586-417568 X-HE-Meta: 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 udjry50p 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Nov 28, 2023 at 08:49:37PM +0000, Pasha Tatashin wrote: > iommu allocations should be accounted in order to allow admins to > monitor and limit the amount of iommu memory. > > Signed-off-by: Pasha Tatashin Acked-by: Michael S. Tsirkin > --- > drivers/vhost/vdpa.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c > index da7ec77cdaff..a51c69c078d9 100644 > --- a/drivers/vhost/vdpa.c > +++ b/drivers/vhost/vdpa.c > @@ -968,7 +968,8 @@ static int vhost_vdpa_map(struct vhost_vdpa *v, struct vhost_iotlb *iotlb, > r = ops->set_map(vdpa, asid, iotlb); > } else { > r = iommu_map(v->domain, iova, pa, size, > - perm_to_iommu_flags(perm), GFP_KERNEL); > + perm_to_iommu_flags(perm), > + GFP_KERNEL_ACCOUNT); > } > if (r) { > vhost_iotlb_del_range(iotlb, iova, iova + size - 1); > -- > 2.43.0.rc2.451.g8631bc7472-goog