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Date: Tue, 17 Nov 2020 12:02:01 -0800 From: Shakeel Butt <shakeelb@...gle.com> To: Roman Gushchin <guro@...com> Cc: Mike Rapoport <rppt@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, Alexander Viro <viro@...iv.linux.org.uk>, Andy Lutomirski <luto@...nel.org>, Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>, Catalin Marinas <catalin.marinas@....com>, Christopher Lameter <cl@...ux.com>, Dan Williams <dan.j.williams@...el.com>, Dave Hansen <dave.hansen@...ux.intel.com>, David Hildenbrand <david@...hat.com>, Elena Reshetova <elena.reshetova@...el.com>, "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>, James Bottomley <jejb@...ux.ibm.com>, "Kirill A. Shutemov" <kirill@...temov.name>, Matthew Wilcox <willy@...radead.org>, Mark Rutland <mark.rutland@....com>, Mike Rapoport <rppt@...ux.ibm.com>, Michael Kerrisk <mtk.manpages@...il.com>, Palmer Dabbelt <palmer@...belt.com>, Paul Walmsley <paul.walmsley@...ive.com>, Peter Zijlstra <peterz@...radead.org>, Rick Edgecombe <rick.p.edgecombe@...el.com>, Shuah Khan <shuah@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Tycho Andersen <tycho@...ho.ws>, Will Deacon <will@...nel.org>, linux-api@...r.kernel.org, linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-fsdevel <linux-fsdevel@...r.kernel.org>, Linux MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>, linux-kselftest@...r.kernel.org, linux-nvdimm@...ts.01.org, linux-riscv@...ts.infradead.org, x86@...nel.org Subject: Re: [PATCH v9 6/9] secretmem: add memcg accounting On Tue, Nov 17, 2020 at 11:49 AM Roman Gushchin <guro@...com> wrote: > > On Tue, Nov 17, 2020 at 06:29:29PM +0200, Mike Rapoport wrote: > > From: Mike Rapoport <rppt@...ux.ibm.com> > > > > Account memory consumed by secretmem to memcg. The accounting is updated > > when the memory is actually allocated and freed. > > > > Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com> [snip] > > > > +static int secretmem_account_pages(struct page *page, gfp_t gfp, int order) > > +{ > > + int err; > > + > > + err = memcg_kmem_charge_page(page, gfp, order); I haven't looked at the whole series but it seems like these pages will be mapped into the userspace, so this patch has dependency on Roman's "mm: allow mapping accounted kernel pages to userspace" patch series.
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