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Sun, 11 Aug 2024 13:23:51 -0700 (PDT) Received: from [2620:0:1008:15:49ba:9fa:21c6:8a73] ([2620:0:1008:15:49ba:9fa:21c6:8a73]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-200bb7eddedsm25974795ad.49.2024.08.11.13.23.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Aug 2024 13:23:50 -0700 (PDT) Date: Sun, 11 Aug 2024 13:23:49 -0700 (PDT) From: David Rientjes To: Pasha Tatashin cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-cxl@vger.kernel.org, cerasuolodomenico@gmail.com, hannes@cmpxchg.org, j.granados@samsung.com, lizhijian@fujitsu.com, muchun.song@linux.dev, nphamcs@gmail.com, rppt@kernel.org, souravpanda@google.com, vbabka@suse.cz, willy@infradead.org, dan.j.williams@intel.com, yi.zhang@redhat.com, alison.schofield@intel.com, david@redhat.com, yosryahmed@google.com Subject: Re: [PATCH v5 1/3] mm: don't account memmap on failure In-Reply-To: <20240809191020.1142142-2-pasha.tatashin@soleen.com> Message-ID: <511c4828-cee9-72a8-8e47-ccdf80011a44@google.com> References: <20240809191020.1142142-1-pasha.tatashin@soleen.com> <20240809191020.1142142-2-pasha.tatashin@soleen.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Fri, 9 Aug 2024, Pasha Tatashin wrote: > When we fail to allocate the mmemmap in alloc_vmemmap_page_list(), do > not account any already-allocated pages: we're going to free all them > before we return from the function. > > Fixes: 15995a352474 ("mm: report per-page metadata information") > Signed-off-by: Pasha Tatashin > Reviewed-by: Fan Ni > Reviewed-by: Yosry Ahmed > Acked-by: David Hildenbrand Acked-by: David Rientjes