linux-kernel - Re: [patch 1/1] Drop CAP_SYS_RAWIO requirement for FIBMAP

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Message-ID: <20071026014325.14f5fe1c@the-village.bc.nu>
Date:	Fri, 26 Oct 2007 01:43:25 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Mike Waychison <mikew@...gle.com>
Cc:	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [patch 1/1] Drop CAP_SYS_RAWIO requirement for FIBMAP

> I found Chris's comment about negative block numbers, I'll send a patch 
> out for that.
> 
> You mentioned back in 99 about racing with ftruncate.  Is it sufficient 
> to mutex_lock(i_mutex) and down_read(i_alloc_sem)?

One for the fs guys. That code has changed far beyond anything I
understand any more 8)

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