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From: Andrew Morton <akpm@linux-foundation.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: 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>,
	Dan Williams <dan.j.williams@intel.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 Deacon <will@kernel.org>,
	linux-api@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
	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 v8 6/9] secretmem: add memcg accounting
Date: Thu, 12 Nov 2020 17:35:00 -0800
Message-ID: <20201112173500.2556342ceefdbe0d66347ecd@linux-foundation.org> (raw)
In-Reply-To: <20201110151444.20662-7-rppt@kernel.org>

On Tue, 10 Nov 2020 17:14:41 +0200 Mike Rapoport <rppt@kernel.org> wrote:

> Account memory consumed by secretmem to memcg. The accounting is updated
> when the memory is actually allocated and freed.

From: Andrew Morton <akpm@linux-foundation.org>
Subject: secretmem-add-memcg-accounting-fix

fix CONFIG_MEMCG=n build

Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/filemap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/filemap.c~secretmem-add-memcg-accounting-fix
+++ a/mm/filemap.c
@@ -844,7 +844,7 @@ static noinline int __add_to_page_cache_
 	page->mapping = mapping;
 	page->index = offset;
 
-	if (!huge && !page->memcg_data) {
+	if (!huge && !page_memcg(page)) {
 		error = mem_cgroup_charge(page, current->mm, gfp);
 		if (error)
 			goto error;
_


  reply index

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-10 15:14 [PATCH v8 0/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 1/9] mm: add definition of PMD_PAGE_ORDER Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 2/9] mmap: make mlock_future_check() global Mike Rapoport
2020-11-10 17:17   ` David Hildenbrand
2020-11-10 18:06     ` Mike Rapoport
2020-11-12 16:22       ` David Hildenbrand
2020-11-12 19:08         ` Mike Rapoport
2020-11-12 20:15           ` David Hildenbrand
2020-11-15  8:26             ` Mike Rapoport
2020-11-17 15:09               ` David Hildenbrand
2020-11-17 15:58                 ` Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 3/9] set_memory: allow set_direct_map_*_noflush() for multiple pages Mike Rapoport
2020-11-13 12:26   ` Catalin Marinas
2020-11-10 15:14 ` [PATCH v8 4/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-11-13 13:58   ` Matthew Wilcox
2020-11-15  8:53     ` Mike Rapoport
2020-11-13 14:06   ` Matthew Wilcox
2020-11-15  8:45     ` Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 5/9] secretmem: use PMD-size pages to amortize direct map fragmentation Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 6/9] secretmem: add memcg accounting Mike Rapoport
2020-11-13  1:35   ` Andrew Morton [this message]
2020-11-13 23:42   ` Roman Gushchin
2020-11-15  9:17     ` Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 7/9] PM: hibernate: disable when there are active secretmem users Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 8/9] arch, mm: wire up memfd_secret system call were relevant Mike Rapoport
2020-11-13 12:25   ` Catalin Marinas
2020-11-15  8:56     ` Mike Rapoport
2020-11-10 15:14 ` [PATCH v8 9/9] secretmem: test: add basic selftest for memfd_secret(2) Mike Rapoport
2020-11-12 14:56 ` [PATCH v8 0/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport

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