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From: Rob Evers <revers@redhat.com>
To: linux-scsi@vger.kernel.org
Cc: revers@redhat.com, michaelc@cs.wisc.edu, bvanassche@acm.org,
	emilne@redhat.com
Subject: [PATCH V3 0/4] Configure number of LUs reported by 'report-luns'
Date: Thu,  7 Mar 2013 08:38:31 -0500	[thread overview]
Message-ID: <1362663515-3476-1-git-send-email-revers@redhat.com> (raw)

This patch set retrieves the number of LUs available on a target
using the report-luns command.  The initial size of the report-luns
command is 512 entries, as the previous default initial number was.
If more LUs than 511 are present on a target, the report-luns is
re-issued with the size indicated in the result of the original
report-luns, up to max_report_luns.

The default value of max_report_luns is increased to 16k-1 from 512-1.

3rd version changes from 2nd posting:

 - add a patch to use get/put_unaligned_be32() in report-luns code

2nd version changes from first posting:

 - Minor tweak added in 2nd patch to use the number of luns
   reported in the 2nd report-luns command, if it is executed.
   There is a chance that the number changed between the
   1st and 2nd report-luns.

 - Add 3rd patch changing kmalloc flag in report luns from
   GFP_ATOMIC to GFP_KERNEL, as this is more consistent with
   the allocation flag in blk_alloc_queue_node()

Rob Evers (4):
  Encapsulate scsi_do_report_luns
  Configure reported luns
  Change kmallocs in report_luns to use GFP_KERNEL
  Use set/get_unaligned_be32 in report_luns

 drivers/scsi/scsi_scan.c | 192 +++++++++++++++++++++++++++++------------------
 1 file changed, 120 insertions(+), 72 deletions(-)

-- 
1.7.11.7


             reply	other threads:[~2013-03-07 13:38 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-07 13:38 Rob Evers [this message]
2013-03-07 13:38 ` [PATCH V3 1/4] Encapsulate scsi_do_report_luns Rob Evers
2013-03-07 15:47   ` Elliott, Robert (Server Storage)
2013-03-07 16:06     ` Jeremy Linton
2013-03-07 17:01       ` Elliott, Robert (Server Storage)
2013-03-07 17:30         ` James Bottomley
2013-03-07 17:38           ` Elliott, Robert (Server Storage)
2013-03-07 17:48             ` James Bottomley
2013-03-07 17:42           ` Jeremy Linton
2013-03-07 13:38 ` [PATCH V3 2/4] Configure reported luns Rob Evers
2013-03-07 13:38 ` [PATCH V3 3/4] Change kmallocs in report_luns to use GFP_KERNEL Rob Evers
2013-03-07 13:38 ` [PATCH V3 4/4] Use set/get_unaligned_be32 in report_luns Rob Evers
2013-03-07 14:31 ` [PATCH V3 0/4] Configure number of LUs reported by 'report-luns' Ewan Milne
2013-03-07 17:01 ` Rob Evers

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