From: Jeff Garzik <jeff@garzik.org>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: Alok kataria <alokkataria1@gmail.com>, linux-ide@vger.kernel.org
Subject: Re: use_clustering (sht) bit set to 0 in AHCI ?
Date: Mon, 21 May 2007 17:17:28 -0400 [thread overview]
Message-ID: <46520C68.7090105@garzik.org> (raw)
In-Reply-To: <20070521121726.GT14746@kernel.dk>
Jens Axboe wrote:
> ahci has always had clustering disabled, perhaps Jeff can expand on why?
Just historical reasons. libata had clustering disabled by default in
the beginning, for all drivers. Then we enabled it globally by changing
the value of ATA_SHT_USE_CLUSTERING... but apparently forgot to change
drivers which use their own value rather than ATA_SHT_USE_CLUSTERING.
Feel free to submit a patch turning it on...
Jeff
next prev parent reply other threads:[~2007-05-21 21:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-26 5:49 use_clustering (sht) bit set to 0 in AHCI ? Alok kataria
2007-05-21 12:17 ` Jens Axboe
2007-05-21 21:17 ` Jeff Garzik [this message]
2007-05-22 7:45 ` Jens Axboe
2007-05-25 3:06 ` Jeff Garzik
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