linux-kernel - Re: [PATCH] sys_remap_file_pages: fix ->vm

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Message-ID: <20080203182952.GB5827@tv-sign.ru>
Date:	Sun, 3 Feb 2008 21:29:52 +0300
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Miklos Szeredi <mszeredi@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	William Lee Irwin III <wli@...omorphy.com>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	stable@...nel.org, Matt Helsley <matthltc@...ibm.com>
Subject: Re: [PATCH] sys_remap_file_pages: fix ->vm_file accounting

Off-topic question to all. sys_remap_file_pages() doesn't work with
shared readonly mappings, why?

IOW, why it checks VM_SHARED but not VM_MAYSHARE?

Thanks in advance,

Oleg.

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