From: Krishna Murthy <krmurthy@cisco.com>
To: 'Christoph Hellwig' <hch@infradead.org>
Cc: linux-scsi@vger.kernel.org, davmyers@cisco.com
Subject: Re: Request for review of Linux iSCSI driver version 4.0.0.1
Date: Wed, 19 Nov 2003 18:10:30 +0530 [thread overview]
Message-ID: <200311191810.30135.krmurthy@cisco.com> (raw)
In-Reply-To: <20031111173622.A12435@infradead.org>
Hi ,
The following was one of your comments on the iSCSI driver:
"having multiple kmap() in the same process at the same time can kmap(),
you redesign iscsi_xmit_task/iscsi_xmit_data/iscsi_recv_data not to do that.
for the tx path use ->sendpage to avoid a data copy and kmapping altogether"
In the first line did you intend to say having multiple kmap() can deadlock?
Regarding usage of sendpage and avoiding kmapping altogether,
we need to access the data, to calculate data digest. If we do not use kmap
how else do we achieve it?
Please let us know.
Thanx
N.C.Krishna Murthy
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next prev parent reply other threads:[~2003-11-19 12:41 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-23 12:04 Request for review of Linux iSCSI driver version 4.0.0.1 Krishna Murthy
2003-10-27 15:39 ` Christoph Hellwig
2003-10-29 13:23 ` Surekha.PC
2003-10-29 13:45 ` 'Christoph Hellwig'
2003-10-29 17:28 ` Mike Christie
2003-10-29 18:45 ` Clay Haapala
2003-10-29 19:01 ` Mike Christie
2003-10-29 19:17 ` Clay Haapala
2003-10-29 19:33 ` Mike Christie
2003-10-30 23:42 ` Andre Hedrick
2003-10-30 13:34 ` jd
2003-11-11 11:56 ` Naveen Burmi
2003-11-11 17:36 ` 'Christoph Hellwig'
2003-11-19 12:40 ` Krishna Murthy [this message]
2003-11-19 12:49 ` Matthew Wilcox
2003-11-19 13:38 ` 'Christoph Hellwig'
2003-11-11 17:40 ` James Bottomley
2003-11-06 9:42 ` Sachin Mhatre (smhatre)
2003-11-06 10:09 ` 'Christoph Hellwig'
2003-11-07 8:55 ` Douglas Gilbert
2003-11-07 9:30 ` 'Christoph Hellwig'
2003-11-10 17:43 ` Patrick Mansfield
2003-11-06 11:10 ` Andre Hedrick
2003-11-06 11:14 ` 'Christoph Hellwig'
2003-11-13 14:30 ` Sachin Mhatre (smhatre)
2003-11-13 14:54 ` Matthew Wilcox
2003-11-19 13:04 ` Sachin Mhatre (smhatre)
2003-11-19 13:10 ` 'Christoph Hellwig'
2003-11-19 14:48 ` Naveen Burmi
2003-11-19 14:48 ` Christoph Hellwig
2003-11-19 15:19 ` Naveen Burmi
2003-11-19 15:20 ` Christoph Hellwig
2003-12-01 12:10 ` Krishna Murthy
2003-12-01 15:22 ` James Bottomley
2003-12-04 12:30 ` N.C.Krishna Murthy
2003-12-05 15:33 ` James Bottomley
2003-12-05 17:03 ` Brian King
2003-12-08 15:06 ` N.C.Krishna Murthy
2003-12-08 15:46 ` Scott M. Ferris
2003-12-10 15:01 ` N.C.Krishna Murthy
2003-12-10 16:50 ` Scott M. Ferris
2003-12-11 14:48 ` N.C.Krishna Murthy
2003-12-01 15:27 ` Christoph Hellwig
2003-12-02 5:52 ` N.C.Krishna Murthy
2003-12-02 16:59 ` Patrick Mansfield
2003-11-19 17:17 ` Patrick Mansfield
2003-11-20 13:32 ` Naveen Burmi
2003-11-20 13:34 ` Christoph Hellwig
2003-11-20 14:53 ` Naveen Burmi
2003-11-22 8:16 ` How to generate ILI condtion on a tape device Kallol Biswas
2003-11-24 8:31 ` Josef Möllers
2003-11-25 7:58 ` Kallol Biswas
2003-11-21 16:42 ` Request for review of Linux iSCSI driver version 4.0.0.1 Clay Haapala
2003-11-21 17:32 ` Matthew Wilcox
2003-11-21 18:18 ` Clay Haapala
2003-11-26 13:41 ` Christoph Hellwig
2003-11-24 6:09 ` Surekha.PC
2003-11-24 7:48 ` 'Christoph Hellwig'
2003-11-24 20:45 ` Patrick Mansfield
2003-11-26 13:45 ` 'Christoph Hellwig'
2003-12-11 12:31 ` Naveen Burmi
-- strict thread matches above, loose matches on Subject: below --
2003-11-21 11:40 Shashi Kiran T.R
2003-11-21 17:56 ` Patrick Mansfield
2003-12-01 12:30 Naveen Burmi
2003-12-01 14:08 ` Naveen Burmi
2003-12-01 18:48 ` Andre Hedrick
2003-12-01 19:23 ` Andre Hedrick
2003-12-01 16:20 ` Roman Zippel
2003-12-01 17:19 ` Scott M. Ferris
2003-12-01 20:06 ` Clay Haapala
2003-12-01 20:31 ` Andre Hedrick
2003-12-01 20:58 ` Clay Haapala
2003-12-02 3:46 ` Andre Hedrick
2003-12-02 12:02 ` Naveen Burmi
2003-12-02 13:57 ` Roman Zippel
2003-12-02 11:56 ` Naveen Burmi
2003-12-02 14:11 ` Roman Zippel
2003-12-02 16:37 ` James Bottomley
2003-12-02 17:42 ` Mike Anderson
2003-12-02 23:55 ` James Bottomley
2003-12-02 23:41 ` Clay Haapala
2003-12-03 14:06 ` Naveen Burmi
2003-12-03 15:09 ` James Bottomley
2003-12-03 17:03 ` Clay Haapala
2003-12-03 17:32 ` James Bottomley
2003-12-03 17:54 ` Mike Anderson
2003-12-03 20:31 ` Clay Haapala
2003-12-03 21:14 ` James Bottomley
2003-12-03 21:53 ` Scott M. Ferris
2003-12-03 22:57 ` Scott M. Ferris
2003-12-03 20:45 ` Clay Haapala
2003-12-03 21:19 ` James Bottomley
2003-12-11 11:21 ` Naveen Burmi
2003-12-03 22:15 ` Scott M. Ferris
2003-12-03 22:32 ` Clay Haapala
2003-12-03 23:24 ` Mike Anderson
2003-12-06 19:37 ` Andre Hedrick
2003-12-07 0:37 ` Roman Zippel
2003-12-11 0:12 Pat LaVarre
2003-12-11 15:47 N.C.Krishna Murthy
2003-12-12 12:48 ` Request " Matthew Wilcox
2003-12-12 15:29 ` N.C.Krishna Murthy
2003-12-13 2:46 ` Andre Hedrick
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