From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jamie Lokier <jamie@shareable.org>
Subject: Re: [PATCH 0/7] Discard requests, v2
Date: Tue, 12 Aug 2008 19:04:23 +0100
Message-ID: <20080812180422.GA21341@shareable.org>
References: <1218299181.26926.88.camel@pmac.infradead.org> <20080812091446.GF20055@kernel.dk> <1218535205.2977.131.camel@pmac.infradead.org> <20080812105428.GG20055@kernel.dk> <1218539797.2977.147.camel@pmac.infradead.org> <1218543544.2977.158.camel@pmac.infradead.org> <20080812125315.GH20055@kernel.dk> <1218546257.2977.167.camel@pmac.infradead.org> <1218556054.2977.188.camel@pmac.infradead.org>
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Cc: Jens Axboe <jens.axboe@oracle.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ric Wheeler <ricwheeler@gmail.com>,
	linux-fsdevel@vger.kernel.org, gilad@codefidence.com,
	matthew@wil.cx
To: David Woodhouse <dwmw2@infradead.org>
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David Woodhouse wrote:
> Anything else I need to address before you pull the tree? Any comment on
> the BLKDISCARD ioctl? I've left that one using the non-barrier version
> since it's waiting for it anyway, and shouldn't be happening
> concurrently with anything else.

What makes you think a userspace filesystem or database wouldn't call
BLKDISCARD concurrently with anything else?

-- Jamie