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Subject: Re: [PATCH] mm/mm_init: remove zone_absent_pages_in_node()
From: Mike Rapoport <rppt@kernel.org>
To: Sang-Heon Jeon <ekffu200098@gmail.com>
Cc: Mike Rapoport <rppt@kernel.org>, 
 Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org, 
 linux-mm@kvack.org
In-Reply-To: <20260827144151.486192-1-ekffu200098@gmail.com>
References: <20260827144151.486192-1-ekffu200098@gmail.com>
Date: Mon, 31 Aug 2026 10:37:17 +0300
Message-Id: <178816183737.3691663.7482057515031348878.b4-review@b4>
X-Mailer: b4 0.17-dev

> zone_absent_pages_in_node() returns 0 when the zone is empty and
> otherwise calls __absent_pages_in_range(), which already returns 0 for
> an empty range.

Right, but it loops over memblock memory for an empty zone to get that 0

-- 
Sincerely yours,
Mike.