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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> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231128204938.1453583-16-pasha.tatashin@soleen.com> 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