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Tue, 22 Jul 2025 12:39:41 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Tue, 22 Jul 2025 21:39:39 +0200 To: Jia He Cc: Catalin Marinas , Will Deacon , Andrew Morton , Uladzislau Rezki , Anshuman Khandual , Ryan Roberts , Peter Xu , Joey Gouly , Yicong Yang , "Matthew Wilcox (Oracle)" , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] mm: vmalloc: use VMALLOC_EARLY_START boundary for early vmap area Message-ID: References: <20250722040850.2017769-1-justin.he@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250722040850.2017769-1-justin.he@arm.com> On Tue, Jul 22, 2025 at 04:08:50AM +0000, Jia He wrote: > When VMALLOC_START is redefined to a new boundary, most subsystems > continue to function correctly. However, vm_area_register_early() > assumes the use of the global _vmlist_ structure before vmalloc_init() > is invoked. This assumption can lead to issues during early boot. > But we just should not redefine the macro. If there are such places those are should be fixed, IMO. -- Uladzislau Rezki