From: Parav Pandit <paravpandit@yahoo.com>
To: linux-scsi <linux-scsi@vger.kernel.org>
Subject: state of the I/O memory when arrives at low level HBA driver
Date: Tue, 4 Sep 2007 04:50:19 -0700 (PDT) [thread overview]
Message-ID: <547218.81228.qm@web30103.mail.mud.yahoo.com> (raw)
Hi,
This may be petty question, but I am not really sure
about this.
When a I/O comes to the low level SCSI HBA driver
through enqueue() interface,
can it happen that I/O data memory is paged out or can
be paged out?
I mean, doing DMA mapping such as pci_map_single()
provides, just physical addresses or it also (page-in
if requires) followed by locking the page(s) in the
system?
Regards,
Parav Pandit
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next reply other threads:[~2007-09-04 11:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-04 11:50 Parav Pandit [this message]
2007-09-04 12:02 ` state of the I/O memory when arrives at low level HBA driver Parav Pandit
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