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b=nziDWrxfNfD1eMXTOJu+nT1tjve0RD4XhiJSvWDxO/3X2n4X1z/5AzsGZopm6RMNn Bb+k6UgtxiO8OmA25GcIvKyo+WVZttIyGmD9BB95X6FaGlZvuuG6SMgRFTVqvAUwcD FV1WRKTTt6SWYQ+s9E/lXuhNBkGZ8r40m3NZrtVY= Date: Fri, 24 May 2024 10:32:12 -0700 From: Andrew Morton To: Andrii Nakryiko Cc: linux-fsdevel@vger.kernel.org, brauner@kernel.org, viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, gregkh@linuxfoundation.org, linux-mm@kvack.org, liam.howlett@oracle.com, surenb@google.com, rppt@kernel.org Subject: Re: [PATCH v2 0/9] ioctl()-based API to query VMAs from /proc//maps Message-Id: <20240524103212.382d10aed85f2e843e86febb@linux-foundation.org> In-Reply-To: <20240524041032.1048094-1-andrii@kernel.org> References: <20240524041032.1048094-1-andrii@kernel.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 8EA4B100025 X-Stat-Signature: uhtignqnr9aqbkhax8z75fxmxsxfjyg7 X-HE-Tag: 1716571937-755599 X-HE-Meta: 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 qr99wne1 hNcqjaqeIz8r1KBr2NEWbC00Fm/tXGwdgWryiJIGg7ZlJbyZ+5QT5u0Z2Wbax9rdwgsg3rlpFpLMzNpV65gwzjr+61xcc3JA5p1uMOs0GaGBOLmzb5p7aJGrI8f4xKiEb3eCoR8XqIHI5P0d5zZUpW5IttTtKayOUwmfUHPPvW9V2++iGp8KArmha8XMwRbRSSZArH1+oi5auhzF2R0yvXX4/pjfS0PNbGbIwEAab2+rrGjf/TTOTmKRYipcNxdV08RIbV0EzJt67vTNXh2wvS1qljZzjuLFEAQ+mQ6SADjl7uJp7iZmTxYD/Fg== 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: List-Subscribe: List-Unsubscribe: On Thu, 23 May 2024 21:10:22 -0700 Andrii Nakryiko wrote: > Implement binary ioctl()-based interface to /proc//maps file Why an ioctl rather than a read() of (say) a sysfs file?