On Thu, Jan 4, 2024 at 10:31 AM Michal Koutný <mkoutny@xxxxxxxx> wrote: > > Hello. > > On Tue, Dec 26, 2023 at 08:01:55PM +0000, Pasha Tatashin <pasha.tatashin@xxxxxxxxxx> wrote: > > This patch series solves this problem by adding both observability to > > all pages that are allocated by IOMMU, and also accountability, so > > admins can limit the amount if via cgroups. > > Maybe this is a mismatch in vocabulary what you mean by the verb > "limit". But I don't see in the patchset that the offending pages would > be allocated with GFP_ACCOUNT. So the result is that the pages are > accounted (you can view the amount in memory.stat) but they are not > subject to memcg limits. > > Is that what you intend? Hi Michal, Thank you for taking a look at this. The two patches [1] [2] which add GFP_KERNEL_ACCOUNT were sent separate from this series at request of reviewers: Pasha [1] https://lore.kernel.org/linux-mm/20231226182827.294158-1-pasha.tatashin@xxxxxxxxxx [2] https://lore.kernel.org/linux-mm/20231130200900.2320829-1-pasha.tatashin@xxxxxxxxxx > > > Regards, > Michal
