linux-kernel - Re: [RFC PATCH] tmpfs: support user quotas

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Message-ID: <20111107073127.GA7410@infradead.org>
Date:	Mon, 7 Nov 2011 02:31:27 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Davidlohr Bueso <dave@....org>
Cc:	Hugh Dickins <hughd@...gle.com>,
	Lennart Poettering <lennart@...ttering.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	lkml <linux-kernel@...r.kernel.org>, linux-mm@...ck.org
Subject: Re: [RFC PATCH] tmpfs: support user quotas

On Sun, Nov 06, 2011 at 06:15:01PM -0300, Davidlohr Bueso wrote:
> From: Davidlohr Bueso <dave@....org>
> 
> This patch adds a new RLIMIT_TMPFSQUOTA resource limit to restrict an individual user's quota across all mounted tmpfs filesystems.
> It's well known that a user can easily fill up commonly used directories (like /tmp, /dev/shm) causing programs to break through DoS.

Please jyst implement the normal user/group quota interfaces we use for other
filesystem.  

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