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b=L8uYt53unxDNYKZf7Y4vZciAiITXax9htmtSv1B4ko/+NkYHyUbMm0k5xmYw1ZYdH YqkRH5UIFvAgYNQoEP4uPERhPI/U51PDU9guJRPq6Kca952s44iw+urk585F4CRKBo aZ7nZStIdXiRi5G9bl6AwbzLR22FTBeEjeBZJM6YNgQLammNOWmM//TBTENdgWHJDC 81Lei3albKFQ0oz7bl33i9TnaalK+oIcrFpkNzY1k32Tr3D7NZDzOLIIbhyHB56StK BI+s8Eoew/r1tq2WdAiNb1ViXqj+17CuoPbXi+h/w4a2jm9NqX/h8M2AeheHRwwkU9 pAUbkqAm/AY4g== Date: Thu, 3 Sep 2026 17:56:38 +0300 From: Mike Rapoport To: "Vlastimil Babka (SUSE)" Cc: Eli Billauer , David Laight , Arnd Bergmann , Brad Warrum , Greg Kroah-Hartman , Michal Simek , Ritu Agarwal , Andrew Morton , David Hildenbrand , Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 2/4] char: xillybus: replace __get_free_pages() with kmalloc() Message-ID: References: <20260830-char-misc-v1-2-05e2ce44f291@kernel.org> <20260831123937.32255a49@pumpkin> <1729fb06-6beb-f8ef-3e71-47fc3f00345d@outbound.gmail.com> <9a3d6a08-339c-3315-cc81-46907d0836ad@outbound.gmail.com> <1d7f8806-f4a0-fda0-a361-a011460ef308@outbound.gmail.com> <3c19c24f-5036-4bbe-b3af-e5eae102f34a@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3c19c24f-5036-4bbe-b3af-e5eae102f34a@kernel.org> X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: A775340008 X-Stat-Signature: ustynqms4k5apdxyy9npss3zsdwr9uzm X-HE-Tag: 1788447407-374881 X-HE-Meta: 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 6QvxQTQd skBm+Z2cXdMi8znlehig0dseVXlLxYU+coDhvenxo/00JJfbTSZp+ItFlQPYKl3xME3LO1jPBGZ9jrl9nRWVgup1/oZw7h2C75tdbuZWTHVW27Z7RHcviyKsDULJp+Cg+phX9RAjYWOq5jEffja+lW4Iu/3GlmYPlZN+830uEqBcgTArYynQuIOsPPht8MksLhtmwWdw2zbEcSeZ3mZvg8dH5JMnfSKzwyLD8EW9yS5ac9Qb4T2loM1syOQlN5CVnV2Uiy7sfmvlYfhQU9Ys9itZfj4+pW1qxcfZWoeSG/S/IfjA6N12mG9kwKddjLpdgjco4/lkL/y1A451+r/yXG/+7T9mnmyH8hvjkHhSYZXFAJdc4Xn094dwUfUSMRsaHiWUk Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Sep 03, 2026 at 04:28:48PM +0200, Vlastimil Babka (SUSE) wrote: > On 9/3/26 14:30, Eli Billauer wrote: > > On 02/09/2026 14:09, Mike Rapoport wrote: > > > in this case. So we actually want __get_free_pages(), but call kmalloc() Just to add to what Vlastimil said, if you want a buffer you want kmalloc(). -- Sincerely yours, Mike.