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b=sZxUQ0zY9ayBEAVXoVqJ/vTJLP2OWd7mOSJ+W+PPWqKLPzBpU6dWhVOGryU9Lbjow mKCiXYV+mdN8BvgFg3MbkSedN1+QeWBbRlF9X2lKQ4BWLZruBOrQ+8PDYpgZRSdk2L 76rvKXWfPkZco4WHI/fUQ/zNC6RMZckSwmKFpvbGbkMvPUzJhKbildRnpRXIm9LTf/ 3WM9gQfGVHFUdqZz9l2dkftrPpRKyclscfk0wcrwTanNFS8XEIEzqFOLZh/6JTkUgP nV4p0CQygbaYA/8wuLFGaCWgbX8mqJ73NuUjdVtifx5Ox83koL8atRdOLy8rhT497K M9F+hU8VxtNCQ== From: Mike Rapoport To: akpm@linux-foundation.org, Wei Yang Cc: Mike Rapoport , linux-mm@kvack.org, Paul Mackerras , Tejun Heo Subject: Re: [Patch v3] mm/memblock: remove empty dummy entry Date: Tue, 9 Apr 2024 08:02:51 +0300 Message-ID: <171263893900.532217.7883690706896508109.b4-ty@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240405015821.13411-1-richard.weiyang@gmail.com> References: <20240405015821.13411-1-richard.weiyang@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Stat-Signature: 1bwu3ukrqbdsbd4t7hzb717j77nkoyks X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 6A2B04000E X-Rspam-User: X-HE-Tag: 1712638995-611208 X-HE-Meta: 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 Pw3a9nwX 2szOb3rfeqDjQPF+IwxpXyv6PZktKOP18UvSfSQqUvmsWQU6RhIm0ogRzMQ2yZ84KWy1fjac4QUqfPWLKhzH1NUWqRpRubuoliQk8h5WPI2OGbeWSPAqTEfz5Sbapy4Lt9ULND3b4tfElvF+U1TnqdhXs8XXPbwMSjvhgLiz75Usufvo53eAJnlexiT8zSpSysm8LYp6KqVospMO4xk7uZy1Cb9gfNhg0XU6zVW+uI9+aTABUyUXGDMcTiqrWrXOa5p60hWZkStX2X0z2yMjeW7oVZUGCg7ydW1A48GU8UG6bQ+GQyvLU2hCo53/LiKdmgrhJ 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: From: Mike Rapoport (IBM) On Fri, 05 Apr 2024 01:58:21 +0000, Wei Yang wrote: > The dummy entry is introduced in the initial implementation of lmb in > commit 7c8c6b9776fb ("powerpc: Merge lmb.c and make MM initialization > use it."). > > As the comment says the empty dummy entry is to simplify the code. > > /* Create a dummy zero size LMB which will get coalesced away later. > * This simplifies the lmb_add() code below... > */ > > [...] Applied to for-next branch of memblock.git tree, thanks! [1/1] mm/memblock: remove empty dummy entry commit: e5d1fdecfaf8470bad3874d00c7921e3883495b7 tree: https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock branch: for-next -- Sincerely yours, Mike.