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[94.245.46.49]) by smtp.gmail.com with ESMTPSA id t7sm166872ljh.22.2020.07.07.06.24.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jul 2020 06:24:44 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Tue, 7 Jul 2020 15:24:42 +0200 To: Anshuman Khandual , Tian Tao Cc: Tian Tao , akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxarm@huawei.com Subject: Re: [PATCH] vmalloc: Removing incorrect logs when vmalloc failed Message-ID: <20200707132442.GA26493@pc636> References: <1594113232-32193-1-git-send-email-tiantao6@hisilicon.com> <5e7885ef-081e-0682-7be7-40eb7712d2c7@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5e7885ef-081e-0682-7be7-40eb7712d2c7@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Queue-Id: 357DC800965D X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Jul 07, 2020 at 03:18:54PM +0530, Anshuman Khandual wrote: > > > On 07/07/2020 02:43 PM, Tian Tao wrote: > > It is not possible to increase size with vmalloc= in arm64 > > architecture and it will mislead.however vmalloc return failure > > is a rare occurrence in 'many architectures including arm64'. > > But there is a chance that vmalloc() might work on architectures > that support 'vmalloc=' command line i.e after a change and this > information here might be helpful in those cases. > Agree. At least i see a few users of it: urezki@pc638:~/data/coding/linux-next.git$ grep -rn early_param ./arch/ | grep vmalloc ./arch/arm/mm/mmu.c:1152:early_param("vmalloc", early_vmalloc); ./arch/unicore32/mm/mmu.c:276:early_param("vmalloc", early_vmalloc); ./arch/x86/mm/pgtable_32.c:86:early_param("vmalloc", parse_vmalloc); urezki@pc638:~/data/coding/linux-next.git$ Thanks! -- Vlad Rezki