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Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qaxt4-006XZk-T3; Tue, 29 Aug 2023 12:32:02 +0000 Date: Tue, 29 Aug 2023 13:32:02 +0100 From: Matthew Wilcox To: Anshuman Khandual Cc: linux-mm@kvack.org, Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/mmap: Define DEFAULT_STACK_GUARD_GAP Message-ID: References: <20230828035248.678960-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230828035248.678960-1-anshuman.khandual@arm.com> X-Rspamd-Queue-Id: 8D0DB180028 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: 6tr1thfeedwskoznst4bhyr7jgzhywhk X-HE-Tag: 1693312327-903136 X-HE-Meta: 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 QgBnPjmS 2dKz84eo5LrNSry82erNauwLs5yTDVwelVTDWp+32GHNWjlPl2TdPfK3pOSTGxGc+cq5iY5e25QjLE/CPC2LX5f8XZhtCOsA5UQFetyhYRjI4saSUcmqb5YORznkHPDmnNrySAODtqC6WW5qHzD3/v68K0UiGzkjEA1da8SbI8l5k2ELnGQP0DnsRNQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.010996, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Aug 28, 2023 at 09:22:48AM +0530, Anshuman Khandual wrote: > This just defines a macro constant i.e DEFAULT_STACK_GUARD_GAP representing > the default gap, guarding the stack mapping. This does not cause functional > changes. But why have you done it at all?