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We want to generate the rport queue event (from the logoff)
before flushing the queue otherwise the event may still be
in the queue when we logoff.
Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Rogue ports are currently not tracked on any list. The only reference
to them is through any outstanding exchanges pending on the rogue ports.
If the module is removed while a retry is set on a rogue port
(say a Plogi retry for instance), this retry is not cancelled because there
is no reference to the rogue port in the discovery rports list. Thus the
local port can clean itself up, delete the exchange pool, and then the
rogue port timeout can fire and try to start up another exchange.
This patch tracks the rogue ports in a new list disc->rogue_rports. Creating
a new list instead of using the disc->rports list keeps remote port code
change to a minimum.
1) Whenever a rogue port is created, it is immediately added to the
disc->rogue_rports list.
2) When the rogues port goes to ready, it is removed from the rogue list
and the real remote port is added to the disc->rports list
3) The removal of the rogue from the disc->rogue_rports list is done in
the context of the fc_rport_work() workQ thread in discovery callback.
4) Real rports are removed from the disc->rports list like before. Lookup
is done only in the real rports list. This avoids making large changes
to the remote port code.
5) In fc_disc_stop_rports, the rogues list is traversed in addition to the
real list to stop the rogue ports and issue logoffs on them. This way, rogue
ports get cleaned up when the local port goes away.
6) rogue remote ports are not removed from the list right away, but
removed late in fc_rport_work() context, multiple threads can find the same
remote port in the list and call rport_logoff(). Rport_logoff() only
continues with the logoff if port is not in NONE state, thus preventing
multiple logoffs and multiple list deletions.
7) Since the rport is removed from the disc list at a later stage
(in the disc callback), incoming frames can find the rport even if
rport_logoff() has been called on the rport. When rport_logoff() is called,
the rport state is set to NONE, and we are trying to cancel all exchanges
and retries on that port. While in this state, if an incoming
Plogi/Prli/Logo or other frames match the rport, we should not reply
because the rport is in the NONE state. Just drop the frame, since the
rport will be deleted soon in the disc callback (fc_rport_work)
8) In fc_disc_single(), remove rport lookup and call to fc_disc_del_target.
fc_disc_single() is called from recv_rscn_req() where rport lookup
and rport_logoff is already done.
Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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For instance, if there is a Plogi pending (remote port is in Plogi state),
and the state changes to say NONE (because the port is being logged off),
then when the Plogi resp times out, do not start a retry.
This patch partially reverts an earlier patch (libfc: check for err when
recv and state is incorrect), by moving the state check back to before
checking for error. However, if the state does not match, then there is
an additional check to see if its an error ptr or a real frame before
jumping to err or out respectively.
Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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gpn_ft_resp processing currently does not hold the discovery lock.
disc_done() thus gets called from gpn_ft_resp or from gpn_ft_parse
without the lock held. This then sets disc->pending to zero or calls
gpn_ft_req() without disc_lock held.
- Hold disc mutex during gpn_ft resp processing
- In disc_done, release the disc mutex while calling lport callback
Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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(version 2)
Fixed a bug in calculating ddp map range when search for free entries:
it was going beyond the end by one, thus corrupting gl_skb[0].
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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When doing a lot (128) of large writes (256K) we can hit the cxgb3_snd_win
check pretty easily. The driver's xmit thread then takes 100% of the cpu.
The driver should not be returning -EAGAIN for this problem. It should
be returing -ENOBUFS, then when the window is opened again it should
queue the xmit thread (it already wakes the xmit thread).
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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cxgb3i was setting can_queue to only 128 commands, and was
setting the can_queue and cmd_per_lun to the same value.
This sets the can_queue to 1024 commands, and sets the cmd_per_lun
to a safer default of 32.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Set target can queue limit to the number of preallocated
session tasks we have.
This along with the cxgb3i can_queue patch will fix a throughput
problem where it could only queue one LU worth of data at a time.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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If a command's scsi cmd pdu setup fails then we can just fail
the IO to the scsi layer. If a DATA_OUT for a R2T fails then
we will want to drop the session, because it means we got a
bad request from the target (iscsi protocol error).
This patch has us propogate the error upwards so libiscsi_tcp
or libiscsi can decide what the best action is to take. It
also fixes a bug where we could try to grab the session lock
while holding it, because if iscsi_tcp drops the session in the
pdu setup callout the session lock is held when setting up the
scsi cmd pdu.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The zfcp_port might have been removed, while the FC fast_io_fail timer
is still running and could trigger the terminate_rport_io callback.
Set the pointer to the zfcp_port to NULL and check accordingly
before using it.
Reviewed-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Before dropping the reference count with zfcp_adapter_put, increase it
with zfcp_adapter_get when issuing cfdc requests.
Reviewed-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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If this problem appears zfcp ports cannot be de-queued since it is
checked for a zero refcount. The port reference counting is wrong for
existing zfcp ports when e.g. an adapter gets on-line again. During
port scanning the reference counting for existing ports should not be
changed.
Signed-off-by: Martin Petermann <martin.petermann@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The current sbal counting can be wrong if a fsf request is
waiting for free sbals and at the same time qdio request queue
is shutdown and re-opened. Revering a previous patch fixes this
issue.
Signed-off-by: Martin Petermann <martin.petermann@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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When the abort handler cannot find a pending FSF request, the request
completion could just be running. This means we cannot return SUCCESS,
since this would lead to call to scsi_done after exiting the SCSI
error handler which is not allowed.
Reviewed-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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A remote port remains in error state even if we receive a RSCN
stating that the connection is re-established. The port recovery
is not started due to a flag which is not reset.
The solution is to clear the flag in question before we trigger a ERP.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Error codes specific to the control file requests are evaluated by the
actcli tool, so don't report -ENXIO for those. Generic problems are
still checked for outside the command specific handler.
Reviewed-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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On some hardware it can take some time to add a unit. If
some remove this unit during this process the remove will
fail.
Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The remote port remains in error state even if the connection
is re-established. A wrong precondition check was performed on
the port status leading to a cancellation of the port reopen.
Remove the pre-req check because it's not required and better
handled within the ERP.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The ERP thread is performing a task before it is executing the
corresponding down on the semaphore. The response handler of the
just started exchange config should wait for the completion by
performing a down on this semaphore. Since this semaphore is still
positive from the ERP enqueue the handler won't wait and therefore
the exchange config will always fail leaving the adapter in error.
The problem can be solved by performing the down on the semaphore
before starting an ERP task. This is the logically correct order.
Only walk the ERP loop if there is a task to perform.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The nameserver port might be in state online when the adapter is
offlined. On adapter reactivation the nameserver port is not
re-opened due to the PORT_ONLINE status. This results in an
unsuccessful recovery. In forcing the nameserver port status
to offline on all adapter offline events this issue is prevented.
Waiting for the reference count to drop to zero in
zfcp_wka_port_offline is not required, so remove it.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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When running the scsi_scan from the zfcp workqueue and the target
device does not respond, the zfcp workqueue can block until the
scsi_scan hits a timeout. Move the work to the scsi host workqueue,
since this one is also used for the scan from the SCSI midlayer.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Fix problem that zfcp_fsf_exchange_config_data_sync and
zfcp_fsf_exchange_config_data_sync could try to call zfcp_fsf_req_free
with a NULL pointer.
Reviewed-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Since we're setting the host port type now to FC_PORTTYPE_NPIV
for adapters running in NPIV mode we should allow this port type
for auto-port scanning as well.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Avoid referencing a fsf request after sending it in fcp_fsf_req_send,
it might have already completed and deallocated.
Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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We cannot call blk_plug_device from scsi_target_queue_ready
because the q lock is not held. And we do not need to call
it from there because when we return 0, the scsi_request_fn
not_ready handling will plug the queue for us if needed.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Update driver version to 8.3.1
Also update copyright end year for driver.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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8.3.1 Fixes/Changes :
- Fix incorrect byte-swapping on word 4 of IOCB (data length) which
caused LUNs to not be discovered on big-endian (e.g. PPC)
- Remove a bad cast of MBslimaddr which loses the __iomem (sparse)
- Make lpfc_debugfs_mask_disc_trc static (sparse)
- Correct misspelled word BlockGuard in lpfc_logmsg.h comment
- Replaced repeated code segment for canceling IOCBs from a list with
a function call, lpfc_sli_cancel_iocbs().
- Increased HBQ buffers to support 40KB SSC sequences.
- Added sysfs interface to update speed and topology parameter without
link bounce.
- Fixed bug with sysfs fc_host WWNs not being updated after changing
the WWNs.
- Check if the active mailbox is NULL in the beginning of the mailbox
timeout handler - fixes panic in the mailbox timeout handler while
running IO stress test
- Fixed system panic in lpfc_pci_remove_one() due to ndlp indirect
reference to phba through vport
- Removed de-reference of scsi device after call to scsi_done() to fix
panic in scsi completion path while accessing scsi device after
scsi_done is called.
- Fixed "Nodelist not empty" message when unloading the driver after
target reboot test
- Added LP2105 HBA model description
- Added code to print all 16 words of unrecognized ASYNC events
- Fixed memory leak in vport create + delete loop
- Added support for handling dual error bit from HBA
- Fixed a driver NULL pointer dereference in lpfc_sli_process_sol_iocb
- Fixed a discovery bug with FC switch reboot in lpfc_setup_disc_node
- Take NULL termintator into account when calculating available buffer space
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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blk_rq_unmap_user() returns EFAULT if a program passes an invalid
address to kernel (the kernel fails to copy data to user space). sg
needs to pass the returned value to user space instead of ignoring
it. Before the block layer conversion, sg returns EFAULT
properly. This restores the old behavior.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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So, what's happening here is that the drive is reporting a sense of
2/4/1 ("logical unit is becoming ready") from sr_test_unit_ready(), and
then we ask for the media event notification before checking that result
at all. The check_media_event_descriptor() call isn't getting a check
condition, but it's also reporting that the tray is closed and that
there's no media. In actuality it doesn't yet know if there's media or
not, but there's no way to express that in the media event status field.
My current thought is that if it told us the device isn't yet ready, we
should return that immediately, since there's nothing that'll tell us
any more data than that reliably:
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The virtio-rng drivers checks for spurious callbacks. Since
callbacks can be implemented via shared interrupts (e.g. PCI) this
could lead to guest kernel oopses with lots of virtio devices.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
ACPI, i915: Register ACPI video even when not modesetting
Revert "ACPICA: delete check for AML access to port 0x81-83"
I/O port protection: update for windows compatibility.
sony-laptop: always try to unblock rfkill on load
sony-laptop: fix bogus error message display on resume
ACPI: EC: Fix ACPI EC resume non-query interrupt message
sony-laptop: SNC input event 38 fix
sony-laptop: SNC 127 Initialization Fix
sony-laptop: Duplicate SNC 127 Event Fix
ACPI: prevent processor.max_cstate=0 boot crash
ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
ACPI: delete obsolete "bus master activity" proc field
ACPI: idle: mark_tsc_unstable() at init-time, not run-time
ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
ACPI video: fix an error when the brightness levels on AC and on Battery are same
acpi-cpufreq: Do not let get_measured perf depend on internal variable
acpi-cpufreq: style-only: add parens to math expression
acpi-cpufreq: Cleanup: Use printk_once
x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf
thinkpad-acpi: bump up version to 0.23
...
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5460/1: Orion: reduce namespace pollution
[ARM] 5458/1: pcmcia: pxa2xx-sharpsl: check if we do have Scoop config
[ARM] 5457/1: mach-imx gpio buildfix
[ARM] 5456/1: add sys_preadv and sys_pwritev
[ARM] pxa/pcm990: start external GPIOs immediately after built-in ones
[ARM] pxa/palm27x: General fix for Palm27x aSoC driver
[ARM] pxa/mioa701: use GPIO95 as AC97 reset line
[ARM] pxa: merge AC97 platform data structures
[ARM] pxa/magician: remove un-necessary #include of pxa-regs.h and hardware.h
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: pwc : do not pass stack allocated buffers to USB core.
USB: otg: Fix bug on remove path without transceiver
USB: correct error handling in cdc-wdm
USB: removal of tty->low_latency hack dating back to the old serial code
USB: serial: sierra driver bug fix for composite interface
USB: gadget: omap_udc uses platform_driver_probe()
USB: ci13xxx_udc: fix build error
USB: musb: Prevent multiple includes of musb.h
USB: pass mem_flags to dma_alloc_coherent
USB: g_file_storage: fix use-after-free bug when closing files
USB: ehci-sched.c: EHCI SITD scheduling bugfix
USB: fix mos7840 problem with minor numbers
USB: mos7840: add new device id
USB: musb: fix build when !CONFIG_PM
USB: musb: Remove my email address from few musb related drivers
USB: Gadget: MIPS CI13xxx UDC bugfixes
USB: Unusual Device support for Gold MP3 Player Energy
USB: serial: fix lifetime and locking problems
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Update defconfigs for 2.6.30-rc3
m68k,m68knommu: Wire up preadv and pwritev
scsi: a4000 - Correct driver unregistration in case of failure
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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] update default configuration.
[S390] omit frame pointers on s390 when possible
[S390] Use tape_generic_offline directly.
[S390] /proc/stat idle field for idle cpus
[S390] appldata: avoid deadlock with appldata_mem
[S390] ipl: fix compile breakage
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
MAINTAINERS: update IDE entry
palm_bk3710: palm_bk3710_udmatimings[] CodingStyle fixup
palm_bk3710: those registers/bitfields don't exist
mediabay: fix build for CONFIG_BLOCK=n
ide: Stop disks on reboot for laptop which cuts power
ide-cd: fix kernel crash on hppa regression
palm_bk3710: UDMA performance fix
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The release path for a disconnected device frees the object then unlocks
the mutex in the freed object...
Found by Dan Carpenter using Smatch
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove my name and emailaddress from note in the source. Wincor Nixdorf
only has some ITE-chips on their mainboards, other chips are not
available for me for testing.
Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Wrong types on IRQ handler
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cfq-iosched: cache prio_tree root in cfqq->p_root
cfq-iosched: fix bug with aliased request and cooperation detection
cfq-iosched: clear ->prio_trees[] on cfqd alloc
block: fix intermittent dm timeout based oops
umem: fix request_queue lock warning
block: simplify I/O stat accounting
pktcdvd.h should include mempool.h
cfq-iosched: use the default seek distance when there aren't enough seek samples
cfq-iosched: make seek_mean converge more quickly
block: make blk_abort_queue() ignore non-request based devices
block: include empty disks in /proc/diskstats
bio: use bio_kmalloc() in copy/map functions
bio: fix bio_kmalloc()
block: fix queue bounce limit setting
block: fix SG_IO vector request data length handling
scatterlist: make sure sg_miter_next() doesn't return 0 sized mappings
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits)
netfilter: ctnetlink: fix gcc warning during compilation
net/netrom: Fix socket locking
netlabel: Always remove the correct address selector
ucc_geth.c: Fix upsmr setting in RMII mode
8139too: fix HW initial flow
af_iucv: Fix race when queuing incoming iucv messages
af_iucv: Test additional sk states in iucv_sock_shutdown
af_iucv: Reject incoming msgs if RECV_SHUTDOWN is set
af_iucv: fix oops in iucv_sock_recvmsg() for MSG_PEEK flag
af_iucv: consider state IUCV_CLOSING when closing a socket
iwlwifi: DMA fixes
iwlwifi: add debugging for TX path
mwl8: fix build warning.
mac80211: fix alignment calculation bug
mac80211: do not print WARN if config interface
iwl3945: use cancel_delayed_work_sync to cancel rfkill_poll
iwlwifi: fix EEPROM validation mask to include OTP only devices
atmel: fix netdev ops conversion
pcnet_cs: add cis(firmware) of the Allied Telesis LA-PCM
mlx4_en: Fix cleanup if workqueue create in mlx4_en_add() fails
...
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc: Fix modular build of ide-pmac when mediabay is built in
powerpc/pasemi: Fix build error on UP
powerpc: Make macintosh/mediabay driver depend on CONFIG_BLOCK
maintainers: Fix PS3 patterns
powerpc/ps3: Fix CONFIG_PS3_FLASH=n build warning
powerpc/32: Don't clobber personality flags on exec
powerpc: Fix crash on CPU hotplug
powerpc/85xx: Remove defconfigs that mpc85xx_{smp_}defconfig cover
powerpc/85xx: Added SMP defconfig
powerpc/85xx: Enabled a bunch of FSL specific drivers/options
powerpc/85xx: Updated generic mpc85xx_defconfig
powerpc: don't disable SATA interrupts on Freescale MPC8610 HPCD
fsl_rio: Pass the proper device to dma mapping routines
powerpc: Fix of_node_put() exit path in of_irq_map_one()
powerpc/5200: defconfig updates
powerpc/5200: Add FLASH nodes to lite5200 device tree
powerpc/device-tree: Document MTD nodes with multiple "reg" tuples
powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-of
powerpc/5200: Bring the legacy fsl_spi_platform_data hooks back
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The umem driver issues two warnings on boot, due to blk_plug_device() and
blk_remove_plug() being called without q->queue_lock held. Starting with
e48ec690 (block: extend queue_flag bitops), the queue_flag_* functions
warn if q->queue_lock doesn't appear to be locked. In fact, q->queue_lock
is NULL (though that apparently isn't otherwise a problem as the driver is
using card->lock for everything).
Although blk_init_queue() with take a request_fn_proc and spinlock_t*,
there isn't a corresponding init helper that takes a make_request_fn.
Setting queue_lock to &card->lock explicitly seems to work fine for me.
The warning goes away and the device appears to behave.
[ 1.531881] v2.3 : Micro Memory(tm) PCI memory board block driver
[ 1.538136] umem 0000:02:01.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[ 1.545018] umem 0000:02:01.0: Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))
[ 1.554176] umem 0000:02:01.0: CSR 0xfc9ffc00 -> 0xffffc200013d0c00 (0x100)
[ 1.561279] umem 0000:02:01.0: Size 1048576 KB, Battery 1 Disabled (FAILURE), Battery 2 Disabled (FAILURE)
[ 1.571114] umem 0000:02:01.0: Window size 16777216 bytes, IRQ 20
[ 1.577304] umem 0000:02:01.0: memory NOT initialized. Consider over-writing whole device.
[ 1.585989] umema:<4>------------[ cut here ]------------
[ 1.591775] WARNING: at include/linux/blkdev.h:492 blk_plug_device+0x6d/0x106()
[ 1.592025] Hardware name: H8SSL
[ 1.592025] Modules linked in:
[ 1.592025] Pid: 1, comm: swapper Not tainted 2.6.29 #8
[ 1.592025] Call Trace:
[ 1.592025] [<ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[ 1.592025] [<ffffffff8025a5b5>] ? save_trace+0x3f/0x9b
[ 1.592025] [<ffffffff8025a68b>] ? add_lock_to_list+0x7a/0xba
[ 1.592025] [<ffffffff8025e609>] ? validate_chain+0xb3b/0xce8
[ 1.592025] [<ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<ffffffff8025ef04>] ? __lock_acquire+0x74e/0x7b9
[ 1.592025] [<ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[ 1.592025] [<ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[ 1.592025] [<ffffffff80441556>] ? mm_make_request+0x27/0x59
[ 1.592025] [<ffffffff803ad165>] blk_plug_device+0x6d/0x106
[ 1.592025] [<ffffffff80441575>] mm_make_request+0x46/0x59
[ 1.592025] [<ffffffff803ac2d9>] generic_make_request+0x335/0x3cf
[ 1.592025] [<ffffffff8027fcc7>] ? mempool_alloc_slab+0x11/0x13
[ 1.592025] [<ffffffff8027fdce>] ? mempool_alloc+0x45/0x101
[ 1.592025] [<ffffffff8025a746>] ? put_lock_stats+0xe/0x27
[ 1.592025] [<ffffffff803adda5>] submit_bio+0x10a/0x119
[ 1.592025] [<ffffffff802c8d00>] submit_bh+0xe5/0x109
[ 1.592025] [<ffffffff802cbf43>] block_read_full_page+0x2aa/0x2cb
[ 1.592025] [<ffffffff802cf4c4>] ? blkdev_get_block+0x0/0x4c
[ 1.592025] [<ffffffff805c90a8>] ? _spin_unlock_irq+0x36/0x51
[ 1.592025] [<ffffffff80286836>] ? __lru_cache_add+0x92/0xb2
[ 1.592025] [<ffffffff802cf008>] blkdev_readpage+0x13/0x15
[ 1.592025] [<ffffffff8027de06>] read_cache_page_async+0x90/0x134
[ 1.592025] [<ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[ 1.592025] [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.592025] [<ffffffff8027deb8>] read_cache_page+0xe/0x45
[ 1.592025] [<ffffffff802f5170>] read_dev_sector+0x2e/0x93
[ 1.592025] [<ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[ 1.592025] [<ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[ 1.592025] [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.592025] [<ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[ 1.592025] [<ffffffff802ceae9>] __blkdev_get+0x259/0x336
[ 1.592025] [<ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[ 1.592025] [<ffffffff802cebd1>] blkdev_get+0xb/0xd
[ 1.592025] [<ffffffff802f5773>] register_disk+0xc4/0x12b
[ 1.592025] [<ffffffff803b2a7b>] add_disk+0xc3/0x12d
[ 1.592025] [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.592025] [<ffffffff808a1e73>] mm_init+0x129/0x1a5
[ 1.592025] [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.592025] [<ffffffff80209056>] _stext+0x56/0x130
[ 1.592025] [<ffffffff80274932>] ? register_irq_proc+0xae/0xca
[ 1.592025] [<ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[ 1.592025] [<ffffffff8087f975>] kernel_init+0x132/0x18b
[ 1.592025] [<ffffffff8020d17a>] child_rip+0xa/0x20
[ 1.592025] [<ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.592025] [<ffffffff8087f843>] ? kernel_init+0x0/0x18b
[ 1.592025] [<ffffffff8020d170>] ? child_rip+0x0/0x20
[ 1.592025] ---[ end trace 7150b3b86da74e1e ]---
[ 1.889858] ------------[ cut here ]------------[ve_plug+0x5f/0x91()
[ 1.893848] Hardware name: H8SSL
[ 1.893848] Modules linked in:
[ 1.893848] Pid: 1, comm: swapper Tainted: G W 2.6.29 #8
[ 1.893848] Call Trace:
[ 1.893848] [<ffffffff8023c994>] warn_slowpath+0xd3/0xf2
[ 1.893848] [<ffffffff805c8411>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 1.893848] [<ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.893848] [<ffffffff80254245>] ? __atomic_notifier_call_chain+0x0/0xb2
[ 1.893848] [<ffffffff805c90a3>] ? _spin_unlock_irq+0x31/0x51
[ 1.893848] [<ffffffff805c90bf>] ? _spin_unlock_irq+0x4d/0x51
[ 1.893848] [<ffffffff8044157d>] ? mm_make_request+0x4e/0x59
[ 1.893848] [<ffffffff8025a70e>] ? get_lock_stats+0x34/0x5e
[ 1.893848] [<ffffffff8025a75d>] ? put_lock_stats+0x25/0x27
[ 1.893848] [<ffffffff80441504>] ? mm_unplug_device+0x25/0x50
[ 1.893848] [<ffffffff803acf23>] blk_remove_plug+0x5f/0x91
[ 1.893848] [<ffffffff8044150f>] mm_unplug_device+0x30/0x50
[ 1.893848] [<ffffffff803ab74a>] blk_unplug+0x78/0x7d
[ 1.893848] [<ffffffff803ab75c>] blk_backing_dev_unplug+0xd/0xf
[ 1.893848] [<ffffffff802c853c>] block_sync_page+0x4a/0x4c
[ 1.893848] [<ffffffff8027da1c>] sync_page+0x44/0x4d
[ 1.893848] [<ffffffff805c66fd>] __wait_on_bit_lock+0x42/0x8a
[ 1.893848] [<ffffffff8027d9d8>] ? sync_page+0x0/0x4d
[ 1.893848] [<ffffffff8027d9c4>] __lock_page+0x64/0x6b
[ 1.893848] [<ffffffff802508db>] ? wake_bit_function+0x0/0x2a
[ 1.893848] [<ffffffff8027de4a>] read_cache_page_async+0xd4/0x134
[ 1.893848] [<ffffffff802ceff5>] ? blkdev_readpage+0x0/0x15
[ 1.893848] [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.893848] [<ffffffff8027deb8>] read_cache_page+0xe/0x45
[ 1.893848] [<ffffffff802f5170>] read_dev_sector+0x2e/0x93
[ 1.893848] [<ffffffff802f5f44>] adfspart_check_ICS+0x28/0x16c
[ 1.893848] [<ffffffff8025d427>] ? trace_hardirqs_on+0xd/0xf
[ 1.893848] [<ffffffff802f5f1c>] ? adfspart_check_ICS+0x0/0x16c
[ 1.893848] [<ffffffff802f59c5>] rescan_partitions+0x168/0x2fb
[ 1.893848] [<ffffffff802ceae9>] __blkdev_get+0x259/0x336
[ 1.893848] [<ffffffff803ca1e2>] ? kobject_put+0x47/0x4b
[ 1.893848] [<ffffffff802cebd1>] blkdev_get+0xb/0xd
[ 1.893848] [<ffffffff802f5773>] register_disk+0xc4/0x12b
[ 1.893848] [<ffffffff803b2a7b>] add_disk+0xc3/0x12d
[ 1.893848] [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.893848] [<ffffffff808a1e73>] mm_init+0x129/0x1a5
[ 1.893848] [<ffffffff808a1d4a>] ? mm_init+0x0/0x1a5
[ 1.893848] [<ffffffff80209056>] _stext+0x56/0x130
[ 1.893848] [<ffffffff80274932>] ? register_irq_proc+0xae/0xca
[ 1.893848] [<ffffffff802f0000>] ? proc_pid_lookup+0xb4/0x18b
[ 1.893848] [<ffffffff8087f975>] kernel_init+0x132/0x18b
[ 1.893848] [<ffffffff8020d17a>] child_rip+0xa/0x20
[ 1.893848] [<ffffffff8020cb40>] ? restore_args+0x0/0x30
[ 1.893848] [<ffffffff8087f843>] ? kernel_init+0x0/0x18b
[ 1.893848] [<ffffffff8020d170>] ? child_rip+0x0/0x20
[ 1.893848] ---[ end trace 7150b3b86da74e1f ]---
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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