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Wed, 02 Apr 2025 14:51:40 -0700 (PDT) MIME-Version: 1.0 References: <20250402204416.3435994-1-nphamcs@gmail.com> <67edaef8da732_1a6d9294e4@dwillia2-xfh.jf.intel.com.notmuch> In-Reply-To: <67edaef8da732_1a6d9294e4@dwillia2-xfh.jf.intel.com.notmuch> From: Nhat Pham Date: Wed, 2 Apr 2025 14:51:28 -0700 X-Gm-Features: AQ5f1JpnbNAWmrE_n7rSW5zDGkArQI4_3QoAhEU6yCrIFbVS6YcXd-JP-CRYo6g Message-ID: Subject: Re: [PATCH v2] zsmalloc: prefer the the original page's node for compressed data To: Dan Williams Cc: akpm@linux-foundation.org, hannes@cmpxchg.org, yosry.ahmed@linux.dev, chengming.zhou@linux.dev, sj@kernel.org, linux-mm@kvack.org, kernel-team@meta.com, linux-kernel@vger.kernel.org, gourry@gourry.net, ying.huang@linux.alibaba.com, jonathan.cameron@huawei.com, linux-cxl@vger.kernel.org, minchan@kernel.org, senozhatsky@chromium.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: E9C24100005 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: d8g8h5ntjaecu89wu6e7qesj5tygurea X-HE-Tag: 1743630701-536414 X-HE-Meta: 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 IL+M17Sk 4gMuAnH5XjS1IFB1CTnLSxqEvAmCXHHpb3wounKWzgIVUeslK5InaYqI+dxHQVYVp1nfpHUYVJdQtUzfPFY1DNfwfD6fTjQDQ4KCrzJufGOhFTzy5ee6YwNpliGWfHt7wrrdMTTCandxe0966UB27e0o/JL3FDaddkT5L0IR5F1L8rWubQ2lHG8O5e5SpaCmr2c9e/7pTwSWNnnLdh74MMtwbasCLzkUpJqdj1gR+9QMd14Xbq6ClcYfMDd5QUDLVoqMcw47xJHue6LXJT6xK+QA8hLP+d3gW60PXzVbEmxZVwCgG1BrIA8wJWs2HsFawFGU+KJiHYtJ9eN6nb42B1GPwLg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.041111, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Apr 2, 2025 at 2:41=E2=80=AFPM Dan Williams wrote> > > Why do the work to pass in @nid only to hardcode 0 to > alloc_pages_node()? That 0 is the order, i.e we want a single page here :) The node id is the first argument of alloc_pages_node. I made the same mistake in one of the earlier versions of this patch series (which, fortunately I did not send out) - hopefully this time I'm correct :)