Date: Thu, 22 Jul 2010 20:45:45 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Matthew Wilcox <matthew@wil.cx>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Filesystem hints to storage
Message-ID: <20100722204545.7e245988@lxorguk.ukuu.org.uk>
In-Reply-To: <20100722180854.GB22009@parisc-linux.org>
References: <20100722180854.GB22009@parisc-linux.org>
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> I think there are some hints that are hard for the filesystem to know
> itself, never mind pass down, so it'd be good to remove them to reduce
> the complexity.  Contrariwise, there are some hints I think the filesystem
> could pass down that aren't in the spec today, such as the flags from
> madvise (random access vs sequential access) and whether the access is
> for fs metadata or application data.

Maybe I'm getting cynical with age but I'd put a beer on it being the
case that implementations ignore the fs provided hints within a few years
of it becoming regularly used 8)

Alan
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