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Shutemov" To: "Matthew Wilcox (Oracle)" Cc: linux-mm@kvack.org, Andrew Morton , Vlastimil Babka , John Hubbard Subject: Re: [PATCH 3/3] mm: Print hashed address of struct page Message-ID: <20200702155607.xobw3m67rsn3tpq2@box> References: <20200629151918.15537-1-willy@infradead.org> <20200629151918.15537-4-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200629151918.15537-4-willy@infradead.org> X-Rspamd-Queue-Id: C8E33800E2CF 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 Mon, Jun 29, 2020 at 04:19:18PM +0100, Matthew Wilcox (Oracle) wrote: > The actual address of the struct page isn't particularly helpful, > while the hashed address helps match with other messages elsewhere. Hashed addresses would lose useful alignment information. I found it useful more than once to check if the page is THP-aligned or not. -- Kirill A. Shutemov