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Message-ID: <4D69154F.8090000@gmail.com>
Date: Sat, 26 Feb 2011 15:59:27 +0100
From: Marco Stornelli <marco.stornelli@gmail.com>
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To: Linux Kernel <linux-kernel@vger.kernel.org>
CC: linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org,
        cluster-devel@redhat.com, xfs@oss.sgi.com,
        Linux FS Devel <linux-fsdevel@vger.kernel.org>
Subject: Re: [PATCH] Check for immutable flag in fallocate path
References: <4D6221B8.9040303@gmail.com>
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Il 21/02/2011 09:26, Marco Stornelli ha scritto:
> From: Marco Stornelli <marco.stornelli@gmail.com>
> 
> All fs must check for the immutable flag in their fallocate callback.
> It's possible to have a race condition in this scenario: an application
> open a file in read/write and it does something, meanwhile root set the
> immutable flag on the file, the application at that point can call
> fallocate with success. Only Ocfs2 check for the immutable flag at the
> moment.
> 
> Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>

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