From: Mike Rapoport <rppt@kernel.org>
To: Shakeel Butt <shakeelb@google.com>
Cc: Roman Gushchin <guro@fb.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andy Lutomirski <luto@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Borislav Petkov <bp@alien8.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Christopher Lameter <cl@linux.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
David Hildenbrand <david@redhat.com>,
Elena Reshetova <elena.reshetova@intel.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
James Bottomley <jejb@linux.ibm.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Matthew Wilcox <willy@infradead.org>,
Mark Rutland <mark.rutland@arm.com>,
Mike Rapoport <rppt@linux.ibm.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Peter Zijlstra <peterz@infradead.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Shuah Khan <shuah@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Tycho Andersen <tycho@tycho.ws>, Will Deac on <will@kernel.org>,
linux-api@vger.kernel.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux MM <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org,
linux-riscv@lists.infradead.org, x86@kernel.org
Subject: Re: [PATCH v9 6/9] secretmem: add memcg accounting
Date: Wed, 18 Nov 2020 08:55:09 +0200 [thread overview]
Message-ID: <20201118065509.GK370813@kernel.org> (raw)
In-Reply-To: <CALvZod5mJnR2DXoYTbp9RX4uR7zVyqAPfD+XKpqXKgxaNyJ1VA@mail.gmail.com>
On Tue, Nov 17, 2020 at 12:02:01PM -0800, Shakeel Butt wrote:
> On Tue, Nov 17, 2020 at 11:49 AM Roman Gushchin <guro@fb.com> wrote:
> >
> > On Tue, Nov 17, 2020 at 06:29:29PM +0200, Mike Rapoport wrote:
> > > From: Mike Rapoport <rppt@linux.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@linux.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.
Yes, that's why I rebased the patches on top of mmotm.
--
Sincerely yours,
Mike.
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next prev parent reply other threads:[~2020-11-18 6:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 16:29 [PATCH v9 0/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 1/9] mm: add definition of PMD_PAGE_ORDER Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 2/9] mmap: make mlock_future_check() global Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 3/9] set_memory: allow set_direct_map_*_noflush() for multiple pages Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 4/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 5/9] secretmem: use PMD-size pages to amortize direct map fragmentation Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 6/9] secretmem: add memcg accounting Mike Rapoport
2020-11-17 19:33 ` Roman Gushchin
2020-11-17 20:02 ` Shakeel Butt
2020-11-18 6:55 ` Mike Rapoport [this message]
2020-11-17 16:29 ` [PATCH v9 7/9] PM: hibernate: disable when there are active secretmem users Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 8/9] arch, mm: wire up memfd_secret system call were relevant Mike Rapoport
2020-11-17 17:15 ` Catalin Marinas
2020-11-18 6:57 ` Mike Rapoport
2020-11-17 16:29 ` [PATCH v9 9/9] secretmem: test: add basic selftest for memfd_secret(2) Mike Rapoport
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