linux-kernel - Re: [PATCH 2/3] mm: introduce fincore()

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Date:	Sun, 1 Jun 2014 23:42:26 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Konstantin Khlebnikov <koct9i@...il.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	"Kirill A. Shutemov" <kirill@...temov.name>,
	Johannes Weiner <hannes@...xchg.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	David Miller <davem@...emloft.net>,
	Andres Freund <andres@...quadrant.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-man@...r.kernel.org
Subject: Re: [PATCH 2/3] mm: introduce fincore()

Please also provide a man page for the system call.

I'm also very unhappy about the crazy different interpretation of the
return value depending on flags, which probably becomes more obvious if
you try to document it.

That being said I think fincore is useful, but why not stick to the
same simple interface as mincore?

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