From: Jens Axboe <jens.axboe@oracle.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Gerry.Houlder@seagate.com, dougg@torque.net, "Knight,
Frederick" <Frederick.Knight@netapp.com>,
linux-scsi@vger.kernel.org, t10@t10.org,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: Alternative TRIM proposal
Date: Tue, 7 Oct 2008 13:39:31 +0200 [thread overview]
Message-ID: <20081007113931.GU19428@kernel.dk> (raw)
In-Reply-To: <20081003154237.GT13822@parisc-linux.org>
On Fri, Oct 03 2008, Matthew Wilcox wrote:
> It is today the case in Linux that each extent will be sent from the
> filesystem to the block layer individually. I can't speak to other
> operating systems, maybe some of them allow filesystems to send a list
> of extents to the SCSI layer, maybe their SCSI layer can take extents
> out of the queue and bundle them together into a single command.
We do that for lots of regular IO as well, but still support merging
them into a single command - the same could be done for trim, basically
making any of them mergable into a single command.
--
Jens Axboe
next prev parent reply other threads:[~2008-10-07 11:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200810021732.m92HW7qL015836@coles02.co.lsil.com>
2008-10-02 19:37 ` Alternative TRIM proposal Kevin_Marks
2008-10-02 20:07 ` Gerry.Houlder
2008-10-02 22:39 ` Kevin_Marks
2008-10-03 15:42 ` Matthew Wilcox
2008-10-07 11:39 ` Jens Axboe [this message]
2008-10-02 15:24 Matthew Wilcox
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