| Commit message (Collapse) | Author | Age | Files | Lines |
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This reverts commit e51af6630848406fc97adbd71443818cdcda297b, which was
wrongly hoovered up and submitted about a month after a better fix had
already been merged.
The better fix is commit cbda1ba898647aeb4ee770b803c922f595e97731
("PCI/iommu: blacklist DMAR on Intel G31/G33 chipsets"), where we do
this blacklisting based on the DMI identification for the offending
motherboard, since sometimes this chipset (or at least a chipset with
the same PCI ID) apparently _does_ actually have an IOMMU.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hugh Dickins reported show_page_path() is buggy and unsafe because
- lack dput() against d_find_alias()
- don't concern vma->vm_mm->owner == NULL
- lack lock_page()
it was only for debugging, so rather than trying to fix it, just remove
it now.
Reported-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
CC: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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m68k allmodconfig:
| drivers/misc/c2port/core.c: In function 'c2port_reset':
| drivers/misc/c2port/core.c:73: error: dereferencing pointer to incomplete type
| drivers/misc/c2port/core.c: In function 'c2port_strobe_ck':
| drivers/misc/c2port/core.c:91: error: dereferencing pointer to incomplete type
Include <linux/sched.h> to fix it, as m68k's local_irq_enable() needs to know
about struct task_struct.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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commit 69961c375288bdab7604e0bb1c8d22999bb8a347 ("[PATCH] m68k/Atari:
Interrupt updates") added a BUG_ON() with an incorrect upper bound
comparison, which causes an early crash on VME boards, where IRQ_USER is
8, cnt is 192 and NR_IRQS is 200.
Reported-by: Stephen N Chivers <schivers@csc.com.au>
Tested-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: improve phantom device detection
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Currently libata uses four methods to detect device presence.
1. PHY status if available.
2. TF register R/W test (only promotes presence, never demotes)
3. device signature after reset
4. IDENTIFY failure detection in SFF state machine
Combination of the above works well in most cases but recently there
have been a few reports where a phantom device causes unnecessary
delay during probe. In both cases, PHY status wasn't available. In
one case, it passed #2 and #3 and failed IDENTIFY with ATA_ERR which
didn't qualify as #4. The other failed #2 but as it passed #3 and #4,
it still caused failure.
In both cases, phantom device reported diagnostic failure, so these
cases can be safely worked around by considering any !ATA_DRQ IDENTIFY
failure as NODEV_HINT if diagnostic failure is set.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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We don't want to get rid of the futexes just at exit() time, we want to
drop them when doing an execve() too, since that gets rid of the
previous VM image too.
Doing it at mm_release() time means that we automatically always do it
when we disassociate a VM map from the task.
Reported-by: pageexec@freemail.hu
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Brad Spengler <spender@grsecurity.net>
Cc: Alex Efros <powerman@powerman.name>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (25 commits)
USB: net: asix: add support for Cables-to-Go USB Ethernet adapter
USB: gadget: cdc-acm deadlock fix
USB: EHCI: fix divide-by-zero bug
USB: EHCI: fix handling of dead controllers
usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB
ub: stub pre_reset and post_reset to fix oops
USB: SISUSB2VGA driver: add 0x0711, 0x0903
usb: unusual devs patch for Nokia 7610 Supernova
USB: remove optional bus bindings in isp1760, fixing runtime warning
+ usb-serial-cp2101-add-enfora-gsm2228.patch added to -mm tree
USB: storage: adjust comment in Kconfig
USB: Fix PS3 USB shutdown problems
USB: unusual_devs entry for Argosy USB mass-storage interface
USB: cdc-acm.c: fix recursive lock in acm_start_wb error path
USB: CP2101 Add device ID for AMB2560
USB: mention URB_FREE_BUFFER in usb_free_urb documentation
USB: Add YISO u893 usb modem vendor and product IDs to option driver
usb: musb: fix BULK request on different available endpoints
usb: musb: fix debug global variable name
usb: musb: Removes compilation warning in gadget mode
...
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Add support to drivers/net/usb/asix.c for the Cables-to-Go "USB 2.0 to
10/100 Ethernet Adapter". USB id 0b95:772a.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a deadlock appearing with some USB peripheral drivers
when running CDC ACM gadget code.
The newish (2.6.27) CDC ACM event notification mechanism sends
messages (IN to the host) which are short enough to fit in most
FIFOs. That means that with some peripheral controller drivers
(evidently not the ones used to verify the notification code!!)
the completion callback can be issued before queue() returns.
The deadlock would come because the completion callback and the
event-issuing code shared a spinlock. Fix is trivial: drop
that lock while queueing the message.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1164) fixes a bug in the EHCI scheduler. The interval
value it uses is already in linear format, not logarithmically coded.
The existing code can sometimes crash the system by trying to divide
by zero.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1165) makes a few small changes in the logic used by
ehci-hcd when it encounters a controller error:
Instead of printing out the masked status, it prints the
original status as read directly from the hardware.
It doesn't check for the STS_HALT status bit before taking
action. The mere fact that the STS_FATAL bit is set means
that something bad has happened and the controller needs to
be reset. With the old code this test could never succeed
because the STS_HALT bit was masked out from the status.
I anticipate that this will prevent the occasional "irq X: nobody cared"
problem people encounter when their EHCI controllers die.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When I used SuperH on-chip USB, there was the problem that accessed
r8a66597_root_hub which was not allocated.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Due to recent changes to usb_reset_device, the following hang occurs:
events/0 D 0000000000000000 0 6 2
ffff880037477cc0 0000000000000046 ffff880037477c50 ffffffff80237434
ffffffff80574c80 00000001000a015c 0000000000000286 ffff8800374757d0
ffff88002a31c860 ffff880037475a00 0000000036779140 ffff880037475a00
Call Trace:
[<ffffffff80237434>] try_to_del_timer_sync+0x52/0x5b
[<ffffffff8026f86c>] dma_pool_free+0x1a7/0x1ec
[<ffffffffa02a928a>] ub_disconnect+0x8e/0x1ad [ub]
[<ffffffff802407c9>] autoremove_wake_function+0x0/0x2e
[<ffffffff80378959>] usb_unbind_interface+0x5c/0xb7
[<ffffffff8036ab70>] __device_release_driver+0x95/0xbd
[<ffffffff8036ac70>] device_release_driver+0x21/0x2d
[<ffffffff803789f8>] usb_driver_release_interface+0x44/0x83
[<ffffffff80378ab9>] usb_forced_unbind_intf+0x17/0x1d
[<ffffffff80371ba4>] usb_reset_device+0x7d/0x114
[<ffffffffa02aaffd>] ub_reset_task+0x0/0x293 [ub]
[<ffffffffa02ab1c1>] ub_reset_task+0x1c4/0x293 [ub]
[<ffffffff8033dd1e>] flush_to_ldisc+0x0/0x1cd
[<ffffffffa02aaffd>] ub_reset_task+0x0/0x293 [ub]
[<ffffffff8023d302>] run_workqueue+0x87/0x114
[<ffffffff8023d467>] worker_thread+0xd8/0xe7
[<ffffffff802407c9>] autoremove_wake_function+0x0/0x2e
[<ffffffff8023d38f>] worker_thread+0x0/0xe7
[<ffffffff802404c1>] kthread+0x47/0x73
[<ffffffff8022c8dd>] schedule_tail+0x27/0x60
[<ffffffff8020c249>] child_rip+0xa/0x11
[<ffffffff8024047a>] kthread+0x0/0x73
[<ffffffff8020c23f>] child_rip+0x0/0x11
This is because usb_reset_device now unbinds, and that calls disconnect,
which in case of ub waits until the reset completes... which deadlocks.
Worse, this deadlocks keventd and this takes whole box down.
I'm going to fix this properly later, but let's unbreak the driver
quickly for non-composite devices at least.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Albert Comerma <albert.comerma@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Additional sectors were reported by the Nokia 7610 Supernova phone in
usb storage mode. The following patch rectifies the aforementioned
problem.
Signed-off-by: Ricky Wong Yung Fei <evilbladewarrior@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Roland Reported the following:
| kmem_cache_create: duplicate cache isp1760_qtd
| Pid: 461, comm: modprobe Tainted: G W 2.6.28-rc2-git3-default #4
| Call Trace:
| [<c017540e>] kmem_cache_create+0xc9/0x3a3
| [<c0159a8d>] free_pages_bulk+0x16c/0x1c9
| [<f165c05f>] isp1760_init+0x0/0xb [isp1760]
| [<f165c018>] init_kmem_once+0x18/0x5f [isp1760]
| [<f165c064>] isp1760_init+0x5/0xb [isp1760]
| [<c010113d>] _stext+0x4d/0x148
| [<c0142936>] load_module+0x12cd/0x142e
| [<c01743c4>] kmem_cache_destroy+0x0/0xd7
| [<c0142b1e>] sys_init_module+0x87/0x176
| [<c01039eb>] sysenter_do_call+0x12/0x2f
The reason, is that ret is initialized with ENODEV instead of 0 _or_
the kmem cache is not freed in error case with no bus binding.
The difference between OF+PCI and OF only is
| 15148 804 32 15984 3e70 isp1760-of-pci.o
| 13748 676 8 14432 3860 isp1760-of.o
about 1.5 KiB.
Until there is a checkbox where the user *must* select atleast one item,
and may select multiple entries I don't make it selectable anymore.
Having a driver which can't be used under any circumstances is broken
anyway and I've seen distros shipping it that way.
Reported-by: Roland Kletzing <devzero@web.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>a
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Enfora GSM2228 based on Cygnal Integrated Products chip uses the same
cp2101 driver.
Signed-off-by: Damir N Abdullin <damir@mimas.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Since commit 65934a9 ("Make USB storage depend on SCSI rather than selecting
it [try #6]") the comment at the top of drivers/usb/storage/Kconfig is
incorrect. Adjust it to the current situation.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add ehci_shutdown() or ohci_shutdown() calls to the USB
PS3 bus glue. ehci_shutdown() and ohci_shutdown() do some
controller specific cleanups not done by usb_remove_hcd().
Fixes errors on shutdown or reboot similar to these:
ps3-ehci-driver sb_07: HC died; cleaning up
irq 51: nobody cared (try booting with the "irqpoll" option)
Related bugzilla reports:
http://bugzilla.kernel.org/show_bug.cgi?id=11819
http://bugzilla.terrasoftsolutions.com/show_bug.cgi?id=317
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1162) adds an unusual_devs entry for Argosy's USB-IDE
interface. This fixes Bugzilla #11843.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Luciano Rocha <luciano@eurotux.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes an obvious bug in cdc-acm by avoiding a recursive lock on
acm_start_wb()'s error path. Should apply towards 2.6.27 stable and
2.6.28.
=============================================
[ INFO: possible recursive locking detected ]
2.6.27-2-pae #109
---------------------------------------------
python/31449 is trying to acquire lock:
(&acm->write_lock){++..}, at: [<f89a0348>] acm_start_wb+0x5c/0x7b [cdc_acm]
but task is already holding lock:
(&acm->write_lock){++..}, at: [<f89a04fb>] acm_tty_write+0xe1/0x167 [cdc_acm]
other info that might help us debug this:
2 locks held by python/31449:
#0: (&tty->atomic_write_lock){--..}, at: [<c0260fae>] tty_write_lock+0x14/0x3b
#1: (&acm->write_lock){++..}, at: [<f89a04fb>] acm_tty_write+0xe1/0x167 [cdc_acm]
stack backtrace:
Pid: 31449, comm: python Not tainted 2.6.27-2-pae #109
[<c030f42f>] ? printk+0xf/0x18
[<c0149f33>] __lock_acquire+0xc7b/0x1316
[<c014a63e>] lock_acquire+0x70/0x97
[<f89a0348>] ? acm_start_wb+0x5c/0x7b [cdc_acm]
[<c0312109>] _spin_lock_irqsave+0x37/0x47
[<f89a0348>] ? acm_start_wb+0x5c/0x7b [cdc_acm]
[<f89a0348>] acm_start_wb+0x5c/0x7b [cdc_acm]
[<f89a055d>] acm_tty_write+0x143/0x167 [cdc_acm]
[<c0262a98>] write_chan+0x1cd/0x297
[<c012527e>] ? default_wake_function+0x0/0xd
[<c026111e>] tty_write+0x149/0x1b9
[<c02628cb>] ? write_chan+0x0/0x297
[<c01912c5>] ? rw_verify_area+0x76/0x98
[<c0260fd5>] ? tty_write+0x0/0x1b9
[<c01919ba>] vfs_write+0x8c/0x136
[<c0191afd>] sys_write+0x3b/0x60
[<c0103beb>] sysenter_do_call+0x12/0x3f
=======================
Signed-off-by: Brandon Philips <bphilips@suse.de>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds the device vendor and product IDs for Amber Wireless AMB2560
Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The usb_free_urb comment says that the transfer buffer will not be
freed, but this is not the case when URB_FREE_BUFFER is set.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds YISO u893 usb modem vendor and product ID to option.c.
I had a better experience using this modification and the same system.
Signed-off-by: Leslie Harlley Watter <leslie@watter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes co-working issue of usb serial device with usb/net devices while
oter endpoints are free and can be used.This patch implements the policy
that if endpoint resources are available then different BULK request goes
to different endpoint otherwise they are multiplexed to one reserved
endpoint as currently done.
Switch statement case is reordered in musb_giveback() to take care of
bulk request both in multiplex scenario and otherwise.
NAK limit scheme has to be added for multiplexed BULK request scenario
to avoid endpoint starvation due to usb/net devices.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In order to avoid namespace conflicts, add a prefix
to our kernel-wise symbol.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes compilation warning when musb is configured in gadget mode.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add an errno to failing case.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes blurred capture images in dma mode. Isochronous error field in
urb and source data buffer pointer were not updated properly in dma
mode.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1155) fixes a bug in usbcore. When interfaces are
deleted, either because the device was disconnected or because of a
configuration change, the extra attribute files and child endpoint
devices may get left behind. This is because the core removes them
before calling device_del(). But during device_del(), after the
driver is unbound the core will reinstall altsetting 0 and recreate
those extra attributes and children.
The patch prevents this by adding a flag to record when the interface
is in the midst of being unregistered. When the flag is set, the
attribute files and child devices will not be created.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org> [2.6.27, 2.6.26, 2.6.25]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11685
When A Nikon D300 camera is connected to a system it is seen in
/proc/bus/pci/devices but is not accessible.
This is seen in the above file:
T: Bus=01 Lev=01 Prnt=01 Port=05 Cnt=03 Dev#= 11 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=04b0 ProdID=041a Rev= 1.03
S: Manufacturer=NIKON
S: Product=NIKON DSC D300
S: SerialNumber=000008014379
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=06(still) Sub=01 Prot=01 Driver=usbfs
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a reported compiler warning.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
dm: avoid destroying table in dm_any_congested
dm: move pending queue wake_up end_io_acct
dm mpath: warn if args ignored
dm mpath: avoid attempting to activate null path
dm stripe: fix init failure
dm raid1: flush workqueue before destruction
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dm_any_congested() just checks for the DMF_BLOCK_IO and has no
code to make sure that suspend waits for dm_any_congested() to
complete. This patch adds such a check.
Without it, a race can occur with dm_table_put() attempting to
destroying the table in the wrong thread, the one running
dm_any_congested() which is meant to be quick and return
immediately.
Two examples of problems:
1. Sleeping functions called from congested code, the caller
of which holds a spin lock.
2. An ABBA deadlock between pdflush and multipathd. The two locks
in contention are inode lock and kernel lock.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This doesn't fix any bug, just moves wake_up immediately after decrementing
md->pending, for better code readability.
It must be clear to anyone manipulating md->pending to wake up
the queue if md->pending reaches zero, so move the wakeup as close to
the decrementing as possible.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Currently dm ignores the parameters provided to hardware handlers
without providing any notifications to the user.
This patch just prints a warning message so that the user knows that
the arguments are ignored.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Path activation code is called even when the pgpath is NULL. This could
lead to a panic in activate_path(). Such a panic is seen in -rt kernel.
This problem has been there before the pg_init() was moved to a
workqueue.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Don't proceed if dm_stripe_init() fails to register itself as a dm target.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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We queue work on keventd queue --- so this queue must be flushed in the
destructor. Otherwise, keventd could access mirror_set after it was freed.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: ignore bit0 of _OSC return code
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Currently acpi_run_osc() checks all the bits in _OSC result code (the
first DWORD in the capabilities buffer) to see error condition. But the
bit 0, which doesn't indicate any error, must be ignored.
The bit 0 is used as the query flag at _OSC invocation time. Some
platforms clear it during _OSC evaluation, but the others don't. On
latter platforms, current acpi_run_osc() mis-detects error when _OSC is
evaluated with query flag set because it doesn't ignore the bit 0.
Because of this, the __acpi_query_osc() always fails on such platforms.
And this is the cause of the problem that pci_osc_control_set() doesn't
work since the commit 4e39432f4df544d3dfe4fc90a22d87de64d15815 which
changed pci_osc_control_set() to use __acpi_query_osc().
Tested-by:"Tomasz Czernecki <czernecki@gmail.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: fix shutdown cleanup
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Fixes a regression from commit 0f8e0d9a317406612700426fad3efab0b7bbc467,
"dlm: allow multiple lockspace creates".
An extraneous 'else' slipped into a code fragment being moved from
release_lockspace() to dlm_release_lockspace(). The result of the
unwanted 'else' is that dlm threads and structures are not stopped
and cleaned up when the final dlm lockspace is removed. Trying to
create a new lockspace again afterward will fail with
"kmem_cache_create: duplicate cache dlm_conn" because the cache
was not previously destroyed.
Signed-off-by: David Teigland <teigland@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
slab: document SLAB_DESTROY_BY_RCU
Kconfig: SLUB is the default slab allocator
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Explain this SLAB_DESTROY_BY_RCU thing...
[hugh@veritas.com: add a pointer to comment in mm/slab.c]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
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In 2007, a0acd820807680d2ccc4ef3448387fcdbf152c73 changed the default
slab allocator to SLUB, but the SLAB help text still says SLAB is the
default. This change fixes that.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants
[ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants
[ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constants
[ARM] dma-mapping: fix compiler warning
[ARM] iop: iop3xx needs registers mapped uncached+unbuffered
[ARM] versatile: correct MMC clock rate
[ARM] realview: correct MMC clock rate
[ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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