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* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] powernow-k8.c: fix a check-after-use
[CPUFREQ] Remove duplicate check in powernow-k8
[CPUFREQ] drivers/cpufreq/cpufreq.c: static functions mustn't be exported
[CPUFREQ] If max_freq got reduced (e.g. by _PPC) a write to sysfs scaling_governor let cpufreq core stuck at low max_freq for ever
[CPUFREQ] x86_64: Proper null pointer check in powernow_k8_get
[CPUFREQ] x86_64: Revert earlier powernow-k8 change
[CPUFREQ] Update LART site URL
[CPUFREQ] Remove pointless check in conservative governor.
[CPUFREQ] trailing whitespace removal de-jour.
[CPUFREQ] extra debugging in cpufreq_add_dev()
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This patch removes the EXPORT_SYMBOL_GPL of the static function cpufreq_parse_governor().
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Jones <davej@redhat.com>
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scaling_governor let cpufreq core stuck at low max_freq for ever
The previous patch had bugs (locking and refcount).
This one could also be related to the latest DELL reports.
But they only slip into this if a user prog (e.g. powersave daemon does when
AC got (un) plugged due to a scheme change) echos something to
/sys/../cpufreq/scaling_governor
while the frequencies got limited by BIOS.
This one works:
Subject: Max freq stucks at low freq if reduced by _PPC and sysfs gov access
The problem is reproducable by(if machine is limiting freqs via BIOS):
- Unplugging AC -> max freq gets limited
- echo ${governor} >/sys/.../cpufreq/scaling_governor (policy->user_data.max
gets overridden with policy->max and will never come up again.)
This patch exchanged the cpufreq_set_policy call to __cpufreq_set_policy and
duplicated it's functionality but did not override user_data.max.
The same happens with overridding min/max values. If freqs are limited and
you override the min freq value, the max freq global value will also get
stuck to the limited freq, even if BIOS allows all freqs again.
Last scenario does only happen if BIOS does not reduce the frequency
to the lowest value (should never happen, just for correctness...)
drivers/cpufreq/cpufreq.c | 17 +++++++++++++++--
1 files changed, 15 insertions(+), 2 deletions(-)
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Update LART site URL.
The LART website moved to http://www.lartmaker.nl/. This patch
updates the URL in CpuFreq specific files.
Signed-off-by: Erik Mouw <erik@bitwizard.nl>
Signed-off-by: Dave Jones <davej@redhat.com>
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< 0 checks on unsigned variables are pointless.
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Dave Jones <davej@redhat.com>
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Snipped from an otherwise rejected patch by Jan Beulich <jbeulich@novell.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3479/1: Corgi SSP: Fix potential concurrent access problem
[ARM] 3478/1: SharpSL SCOOP: Fix potenial build failure
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Patch from Richard Purdie
Move platform_scoop_config from the SharpSL scoop PCMCIA driver to
the SCOOP driver. This avoids build failures when PCMCIA is not built
or is modular (scoop.c itself cannot be modular).
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: Fix further issues in drivers/char/drm/via_irq.c
drivers/char/drm/drm_memory.c: possible cleanups
drm: deline a few large inlines in DRM code
drm: remove master setting from add/remove context
drm: drm_pci needs dma-mapping.h
[PATCH] drm: Fix issue reported by Coverity in drivers/char/drm/via_irq.c
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Fix de-reference of 'dev_priv' before NULL check.
Signed-off-by: Jayachandran C. <c.jayachandran@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@osdl.org>
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- #if 0 the following unused global function:
- drm_ioremap_nocache()
- make the following needlessly global functions static:
- agp_remap()
- drm_lookup_map()
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@osdl.org>
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This patch moves a few large functions from drm_memory.h
to drm_memory.c, with the following effect:
text data bss dec hex filename
46305 1304 20 47629 ba0d new/drm.ko
46367 1304 20 47691 ba4b org/drm.ko
12969 1372 0 14341 3805 new/i810.ko
14712 1372 0 16084 3ed4 org/i810.ko
16447 1364 0 17811 4593 new/i830.ko
18198 1364 0 19562 4c6a org/i830.ko
11875 1324 0 13199 338f new/i915.ko
13025 1324 0 14349 380d org/i915.ko
23936 29288 0 53224 cfe8 new/mga.ko
27280 29288 0 56568 dcf8 org/mga.ko
Please apply.
Signed-off-by: Denis Vlasenko <vda@ilport.com.ua>
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Clients can do this in the miniglx setups.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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On alpha:
WARNING: "dma_free_coherent" [drivers/char/drm/drm.ko] undefined!
WARNING: "dma_alloc_coherent" [drivers/char/drm/drm.ko] undefined!
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
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This patch tries to fix an issue reported in drivers/char/drm/via_irq.c by
Coverity, please review and apply if correct.
Error reported:
CID: 3444 Checker: REVERSE_INULL (help)
File: /export2/p4-coverity/mc2/linux26/drivers/char/drm/via_irq.c
Function: via_driver_irq_wait
Description: Pointer "dev_priv" dereferenced before NULL check
Patch Description:
Move de-referencing dev_priv to after the NULL check.
Signed-off-by: Jayachandran C. <c.jayachandran at gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Fix a crash when running hpacucli with multiple logical volumes on a cciss
controller. We were not properly initializing the disk->queue and causing
a fault.
Thanks to Hasso Tepper for reporting the problem. Thanks to Steve Cameron
for root causing the problem. Most of the patch just moves things around.
The fix is a one-liner.
Signed-off-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Stephen Cameron <steve.cameron@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Limit USB_STORAGE_ISD200 to whatever BLK_DEV_IDE and USB_STORAGE
are set to (y, m) since isd200 calls ide_fix_driveid() in the
BLK_DEV_IDE code.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The at91_cf driver got out of sync with certain changes in the PCMCIA
layer, notably getting rid of some duplication of data ... causing the
version merged to kernel.org to fail compiling.
This patch gives the at91_cf platform device a new iomem resource, using
it so this new pcmcia scheme works. It also cleans up some whitepsace
bugs that have accumulated over time (mostly too-long lines).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Original patch by Benjamin Herrenschmidt after debugging by Brian Hinz.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brian Hinz <bphinz@hotmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (170 commits)
commit 3d9dd7564d5d7c28eb87b14c13a23806484667f3
Author: Zach Brown <zach.brown@oracle.com>
Date: Fri Apr 14 16:04:18 2006 -0700
[PATCH] ip_output: account for fraggap when checking to add trailer_len
During other work I noticed that ip_append_data() seemed to be forgetting to
include the frag gap in its calculation of a fragment that consumes the rest of
the payload. Herbert confirmed that this was a bug that snuck in during a
previous rework.
Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 08d099974a09faf4cb11ffc46da87073fa132fc0
Author: Linus Walleij <triad@df.lth.se>
Date: Fri Apr 14 16:03:33 2006 -0700
[IRDA]: smsc-ircc2, smcinit support for ALi ISA bridges
...
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From: Linus Walleij <triad@df.lth.se>
This patch enables support for ALi ISA bridges when we run the smcinit
code. It is needed to properly configure some Toshiba laptops.
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the STIR421x case, when the firmware upload fails, we need to
unregister_netdev. Otherwise we hit a BUG on free_netdev(), if sysfs
is enabled.
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (679 commits)
commit 7676f83aeb774e7a3abe6af06ec92b29488b5b79
Author: James Bottomley <James.Bottomley@steeleye.com>
Date: Fri Apr 14 09:47:59 2006 -0500
[SCSI] scsi_transport_sas: don't scan a non-existent end device
Any end device that can't support any of the scanning protocols
shouldn't be scanned, so set its id to -1 to prevent
scsi_scan_target() being called for it.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
commit 3c0c25b97c7d020ef07f6366cf1d668a8e980c7c
Author: Moore, Eric <Eric.Moore@lsil.com>
Date: Thu Apr 13 16:08:17 2006 -0600
[SCSI] mptfusion - fix panic in mptsas_slave_configure
Driver panic when RAID logical volume was present when driver
loaded, or when a RAID logical volume was created on the fly.
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Any end device that can't support any of the scanning protocols
shouldn't be scanned, so set its id to -1 to prevent
scsi_scan_target() being called for it.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Driver panic when RAID logical volume was present when driver
loaded, or when a RAID logical volume was created on the fly.
This issue was created in due to recent scsi_transport_sas change,
when sas_read_port_mode_page was added into the mptsas drivers
slave_config entry point.
This new API expects that all sdev's to be assocated to an rphy, however
that is not the case for logical volumes, as they are created using
scsi_add_device, instead of sas_rphy_add().
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Equivalent of the same patch for the 3w-xxxx driver.
Signed-off-by: Adam Radford <linuxraid@amcc.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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scsi_kill_request() completes requests via normal SCSI completion path
which decrements busy counts; however, requests which get passed to
scsi_kill_request() aren't holding busy counts and scsi_kill_request()
don't increment them before invoking completion path resulting in
incorrect busy counts. Bump up busy counts before invoking completion
path.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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As previously reported via Michael Reed, the FC transport took a hit
in 2.6.15 (perhaps a little earlier) when we solved a recursion error.
There are 2 deadlocks occurring:
- With scan and the delete items sharing the same workq, flushing the
workq for the delete code was getting it stalled behind a very long
running scan code path.
- There's a deadlock where scsi_remove_target() has to sit behind
scsi_scan_target() due to contention over the scan_lock().
This patch resolves the 1st deadlock and significantly reduces the
odds of the second. So far, we have only replicated the 2nd deadlock
on a highly-parallel SMP system. More on the 2nd deadlock in a following
email.
This patch reworks the transport to:
- Only use the scsi host workq for scanning
- Use 2 other workq's internally. One for deletions, the other for
scheduled deletions. Originally, we tried this with a single workq,
but the occassional flushes of the scheduled queues was hitting the
second deadlock with a slightly higher frequency. In the future, we'll
look at the LLDD's and the transport to see if we can get rid of this
extra overhead.
- When moving to the other workq's we tightened up some object states
and some lock handling.
- Properly syncs adds/deletes
- minor code cleanups
- directly reference fc_host_attrs, rather than through attribute
macros
- flush the right workq on delayed work cancel failures.
Large kudos to Michael Reed who has been working this issue for the last
month.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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When a target is added aic79xx tries to be overly clever: it changes
the command on the fly to TEST UNIT READY and tries to requeue the
original command. Sadly this breaks SCSI compability and of course
the midlayer is getting a bit confused by it.
So we're just removing that bit of code and let the midlayer deal with
it. It's clever enough by now. And the driver code is getting simpler.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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It's no longer needed after the convrsion to use the linux srp.h file.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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As James B. correctly noted, ahd_reset_channel() in
ahd_linux_bus_reset() should be protected by ahd_lock(). However, the
main reason for not doing so was a deadlock with the interesting
polling mechanism to detect the end a bus reset.
This patch replaces the polling mechanism with a saner signalling via
flags; it also gives us the benefit of detecting any multiple calls to
ahd_reset_channel().
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Original From: Ingo Flaschberger <if@xip.at>
To support the RA4100 array from Compaq.
This patch now correctly handles SCSI_UNKNOWN types with regard to
BLIST_REPORTLUNS2 (allow it) and cdb[1] LUN inclusion (don't).
It also allows a BLIST_MAX_512 flag to restrict the maximum transfer
length to 512 blocks (apparently this is an RA4100 problem).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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When spinlock debugging is turned on, a struct completion grows beyond the
size allowed for the scsi_pointer. So move the struct completion back onto
the stack. The additional memory barriers are to keep us from completing
a random piece of kernel stack if the command happens to complete after
the error handling has finished.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Bump ipr driver version to 2.1.3
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Encapsulate some more of the device reset processing in
preparation for SATA support.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Remove some unused printk macros, make some more robust, and
convert some to use standard printk macros when possible.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Simplify the dumping of the command status area by
removing some device specific information that has proven
to not be worthwhile.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Fixup a check used by the ipr driver to determine if a given
device is a SCSI disk. Due to the addition of support for
attaching SATA devices, this check needs to be more robust.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Instead of NULLing the resource entry pointer when a disk
goes away to prevent any new commands being sent to it,
set the adapter resource handle to an invalid value so
new ops getting sent to it will fail with a selection timeout
response. This patch is needed for future SATA patches.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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when the sg driver is unable to setup direct IO, free that scatter
gather list prior to falling back to indirect IO
Further to this thread started by Bryan Holty:
http://marc.theaimsgroup.com/?l=linux-scsi&m=114306885116728&w=2
Here is the reworked patch again. This time it has been
tested with a program provided by Bryan.
Signed-off-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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necessary to make the domain class use the internal structures
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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for_each_cpu() actually iterates across all possible CPUs. We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs. This is inefficient and
possibly buggy.
We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.
This patch replaces for_each_cpu with for_each_possible_cpu.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This patch enables clustering and sets max_sectors to 0xffff to enable
reading and writing of large blocks with tapes (and large transfers with
sg). This change is needed after the sg and st drivers started using
chained bios through scsi_request_async() in 2.6.16.
Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Use wait_for_completion_timeout() instead of using a timer (as
Christoph Hellwig did for aic7xxx).
That lets me eliminate the sym_eh_wait structure; the struct completion,
the old_done pointer and the to_do flag can be folded into the sym_ucmd
(which overrides the scsi_pointer in scsi_cmnd).
The sym_eh_done() function becomes much simpler as the timeout handling
is done in sym_eh_handler() directly.
The host_lock can be unlocked earlier, and I cache the host in
a local variable to make accesses to it quicker.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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The PDC code can set the bus mode, but we were ignoring that setting.
Also move the code that determines bus mode into its own function.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Now sym2 is using spi_print_msg, we don't need to have our own messages
for IGNORE WIDE RESIDUE and MODIFY DATA POINTER, so provide the option
of passing NULL for the label.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Undef SYM_OPT_HANDLE_DEVICE_QUEUEING.
Call sym_put_start_queue instead of sym_start_next_ccbs.
Turn asserts into checks that we can send the command to the adapter,
and return busy from queuecommand if we can't.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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