- 28 3月, 2008 3 次提交
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由 Rusty Russell 提交于
Took some cycles to re-read the Lguest Journey end-to-end, fix some rot and tighten some phrases. Only comments change. No new jokes, but a couple of recycled old jokes. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Tim Ansell 提交于
lguest doesn't have features, it has puppies! Signed-off-by: NTimothy R Ansell <mithro@mithis.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Anthony Liguori 提交于
Make sure to call unregister_virtio_device() when a virtio device is removed. Otherwise, virtio_pci.ko cannot be rmmod'd. This was spotted by Marcelo Tosatti. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 27 3月, 2008 3 次提交
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由 Julia Lawall 提交于
The function thermal_cooling_device_register always returns either a valid pointer or a value made with ERR_PTR, so a test for non-zero on the result will always succeed. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) //<smpl> @a@ expression E, E1; statement S,S1; position p; @@ E = thermal_cooling_device_register(...) ... when != E = E1 if@p (E) S else S1 @n@ position a.p; expression E,E1; statement S,S1; @@ E = NULL ... when != E = E1 if@p (E) S else S1 @depends on !n@ expression E; statement S,S1; position a.p; @@ * if@p (E) S else S1 //</smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Linus Torvalds 提交于
This reverts commit 8fa5913d, which caused various interesting problems for people, including wrong resource allocations. See for example bugzilla entry "2.6.25-rc2: ohci1394 problem (MMIO broken)" at http://bugzilla.kernel.org/show_bug.cgi?id=10080 And Gary Hade says: "The same change had also exposed an issue reported by Paul Martin that has been causing an Oops while hotplugging ThinkPads to a ThinkPad Dock II. See http://lkml.org/lkml/2008/2/19/405 http://bugzilla.kernel.org/show_bug.cgi?id=9961 I have a fix for the ThinkPad docking Oops but if the issue being discussed here is caused by the transparent bridge sizing removal change I totally agree that it should be reverted." The transparent bridge sizing removal change was motivated by insufficient PCI memory resource for a transparent bridge window that was being created as a result of expansion ROM(s) being included in the transparent bridge sizing calculations. A later "PCI: Remove default PCI expansion ROM memory allocation" change ( re: http://lkml.org/lkml/2007/12/11/361 ) removes the expansion ROM(s) from the transparent bridge sizing calculations which actually resolves the original issue in a different manner. So, even if the "PCI: remove transparent bridge sizing" is not problematic it is no longer needed anyway." Identified-by: NIvan Kokshaysky <ink@jurassic.park.msu.ru> Tested-by: NThomas Meyer <thomas@m3y3r.de> Acked-by: NGary Hade <garyhade@us.ibm.com> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Len Brown 提交于
We have been printing these messages at KERN_ERR since 2.6.24, per http://bugzilla.kernel.org/show_bug.cgi?id=9535 But KERN_ERR pops up on a console booted with "quiet" and causes users to get alarmed and file bugs about the message itself: https://bugzilla.redhat.com/show_bug.cgi?id=436589 So reduce the severity of these messages to KERN_WARNING, which is not printed by "quiet". This message will still be seen without "quiet", but a lot of messages are printed in that mode and it will be less likely to cause undue alarm. We could go all the way to KERN_DEBUG, but this is a real warning after all, so it seems prudent not to require "debug" to see it. Signed-off-by: NLen Brown <len.brown@intel.com>
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- 26 3月, 2008 30 次提交
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由 Venki Pallipadi 提交于
commit 9b12e18c 'ACPI: cpuidle: Support C1 idle time accounting' was implicated in a 100% C0 idle regression. http://bugzilla.kernel.org/show_bug.cgi?id=10076 It pointed out a potential problem where the menu governor may get confused by the C-state residency time from poll idle or C1 idle, where this timing info is not accurate. This inaccuracy is due to interrupts being handled before we account for C-state exit. Do not mark TIME_VALID for CO poll state. Mark C1 time as valid only with the MWAIT (CSTATE_FFH) entry method. This makes governors use the timing information only when it is correct and eliminates any wrong policy decisions that may result from invalid timing information. Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Yi Yang 提交于
cpuidle C-state sysfs node time and usage are very easy to overflow because they are all of unsigned int type, time will overflow within about two hours, usage will take longer time to overflow, but they are increasing for ever. This patch will convert them to unsigned long long. Signed-off-by: NYi Yang <yi.y.yang@intel.com> Acked-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Venki Pallipadi 提交于
This original patch http://ussg.iu.edu/hypermail/linux/kernel/0712.2/1451.html was intending to add acpi_unlazy_tlb() to acpi_idle_enter_bm(), which is used for C3 entry. But it was merged incorrectly as commmit bde6f5f5 'x86: voluntary leave_mm before entering ACPI C3' so the call was instead added to acpi_idle_enter_simple() (which is C2 entry routine), probably due to identical context in that function. Move the call back to acpi_idle_enter_bm(). Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Jeff Garzik 提交于
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Sreenivasa Honnur 提交于
- Handling TX completions on the same cpu as the sender. Signed-off-by: NSurjit Reang <surjit.reang@neterion.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Michael Buesch 提交于
Some ROMs on embedded devices store incorrect values for the PHY address of the ethernet device. It looks like the number is sign-extended. Truncate the value by applying the PHY-address mask to it. The patch was tested on a bcm47xx embedded system (where the bug triggers) and a bcm4400 PCI card. Signed-off-by: NMichael Buesch <mb@bu3sch.de> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Marin Mitov 提交于
According to: Documentation/networking/netdevices.txt: <cite> napi->poll: .......... Context: softirq will be called with interrupts disabled by netconsole. </cite> napi->poll() could be called either with interrupts enabled (in softirq context) or disabled (by netconsole), so the irq flag should be preserved. Inspired by Ingo's resent forcedeth patch :-) Signed-off-by: NMarin Mitov <mitov@issp.bas.bg> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jussi Kivilinna 提交于
When query for OID_GEN_PHYSICAL_MEDIUM fails, uninitialized pointer 'phym' is being accessed in generic_rndis_bind(), resulting OOPS. Patch fixes phym to be initialized and setup correctly when rndis_query() for physical medium fails. Bug was introduced by following commit: commit 039ee17d Author: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Date: Sun Jan 27 23:34:33 2008 +0200 Reported-by: NDmitri Monakhov <dmonakhov@openvz.org> Signed-off-by: NJussi Kivilinna <jussi.kivilinna@mbnet.fi> Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Roland Dreier 提交于
Using iWARP with a Chelsio T3 NIC generates the following lockdep warning: ================================= [ INFO: inconsistent lock state ] 2.6.25-rc6 #50 --------------------------------- inconsistent {softirq-on-W} -> {in-softirq-W} usage. swapper/0 [HC0[0]:SC1[1]:HE0:SE0] takes: (&adap->sge.reg_lock){-+..}, at: [<ffffffff880e5ee2>] cxgb_offload_ctl+0x3af/0x507 [cxgb3] The problem is that reg_lock is used with plain spin_lock() in drivers/net/cxgb3/sge.c but is used with spin_lock_irqsave() in drivers/net/cxgb3/cxgb3_offload.c. This is technically a false positive, since the uses in sge.c are only in the initialization and cleanup paths and cannot overlap with any use in interrupt context. The best fix is probably just to use spin_lock_irq() with reg_lock in sge.c. Even though it's not strictly required for correctness, it avoids triggering lockdep and the extra overhead of disabling interrupts is not important at all in the initialization and cleanup slow paths. Signed-off-by: NRoland Dreier <rolandd@cisco.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Thomas Klein 提交于
Indicate that HEA calculates IPv4 checksums only Signed-off-by: NThomas Klein <tklein@de.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Peter Korsgaard 提交于
Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Peter Korsgaard 提交于
Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Peter Korsgaard 提交于
The Hirose USB-100 adapter uses a dm9601 chip. Reported by Robert Brockway. Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alexandr Smirnov 提交于
Marvell PHY m88e1111 (not sure about other models, but think they too) works in two modes: fiber and copper. In Marvell PHY driver (that we have in current community kernels) code supported only copper mode, and this is not configurable, bits for copper mode are simply written in registers during PHY initialization. This patch adds support for both modes. Signed-off-by: NAlexandr Smirnov <asmirnov@ru.mvista.com> Acked-by: NAndy Fleming <afleming@freescale.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Dhananjay Phadke 提交于
Don't count rx dropped packets based on return value of netif_receive_skb(), which is misleading. Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com> Tested-by: NVernon Mauery <mauery@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Dhananjay Phadke 提交于
o eliminate tx lock in netxen adapter struct, instead pound on netdev tx lock appropriately. o remove old "concurrent transmit" code that unnecessarily drops and reacquires tx lock in hard_xmit_frame(), this is already serialized the netdev xmit lock. o reduce scope of tx lock in tx cleanup. tx cleanup operates on different section of the ring than transmitting cpus and is guarded by producer and consumer indices. This fixes a race caused by rx softirq preemption on realtime kernels. Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com> Tested-by: NVernon Mauery <mauery@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Dhananjay Phadke 提交于
o separate and simpler irq handler for msi interrupts, avoids few checks than legacy mode. o avoid redudant tx_has_work() and rx_has_work() checks in interrupt and napi, which can uncork irq based on racy (lockless) access to tx and rx ring indices. If we get interrupt, there's sufficient reason to schedule napi. o replenish rx ring more often, remove self-imposed threshold rcv_free that prevents posting rx desc to card. This improves performance in low memory. Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com> Tested-by: NVernon Mauery <mauery@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Dhananjay Phadke 提交于
Recent netxen firmware has new scheme of generating MSI interrupts, it raises interrupt and blocks itself, waiting for driver to unmask. This reduces chance of spurious interrupts. The driver will be able to deal with older firmware as well. Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com> Tested-by: NVernon Mauery <mauery@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Bryan Wu 提交于
Cc: Jeff Garzik <jeff@garzik.org> Cc: Deepak Saxena <dsaxena@plexity.net> Cc: Nicolas Pitre <nico@cam.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Julia Lawall 提交于
The variable num_group_tail_writes is initialized but never used otherwise. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; identifier i; constant C; @@ ( extern T i; | - T i; <+... when != i - i = C; ...+> ) // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NAuke Kok <auke-jan.h.kok@intel.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Al Viro 提交于
le16_to_cpu() should be done before mask and shift... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Vosburgh 提交于
Update version to 3.2.5. Signed-off-by: NJay Vosburgh <fubar@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Libor Pechacek 提交于
For bonding interfaces any attempt to read the sysfs directory contents after module removal results in an oops. The fix is to release sysfs attributes for the interfaces upon module unload. Signed-off-by: NLibor Pechacek <lpechacek@suse.cz> Acked-by: NJay Vosburgh <fubar@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Vosburgh 提交于
Fix two compiler warnings that are new with recent versions of gcc (apparently 4.2 and up). One is fixed by refactoring; this change was supplied by Stephen Hemminger. The other was fixed by labelling the variable as uninitialized_var() after confirming via inspection that it cannot actually be used uninitialized. Signed-off-by: NJay Vosburgh <fubar@us.ibm.com> Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Vosburgh 提交于
The 802.3ad state machine lock can be acquired in both softirq and not softirq context, but was not held at _bh to prevent a deadlock (which could occur if a LACPDU arrived and was processed while the lock was held). Corrected this, now hold the state machine lock at _bh to prevent deadlock. Bug reported by Todd Fleisher <todd@fleish.org>. Signed-off-by: NJay Vosburgh <fubar@us.ibm.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Jay Schulist 提交于
This patch to drivers/net/tokenring/smctr.c fixes a "bitwise vs logical" or error. Signed-off-by: NJay Schulist <jjschlst@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Zhang Rui 提交于
commit 3620f2f2 sets the cid of ACPI video/dock/bay device and leaves the hid empty. As a result, "modalias" should export the cid for devices which don't have a hid. ACPI Video driver is not autoloaded with commit 3620f2f2 applied. "cat /sys/.../device:03(acpi video bus)/modalias" shows nothing. ACPI Video driver is autoloaded after revert that commit. "cat /sys/.../LNXVIDEO:0x/modalias" shows "acpi:LNXVIDEO:" ACPI Video driver is autoloaded with commit 3620f2f2 and this patch applied. "cat /sys/.../device:03(acpi video bus)/modalias" shows "acpi:LNXVIDEO:" Signed-off-by: NZhang Rui <rui.zhang@intel.com> Acked-by: NThomas Renninger <trenn@suse.de> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Bjorn Helgaas 提交于
This fixes the builtin RTL8139 NIC on the Medion MD9580-F laptop. The BIOS reports the interrupt routing incorrectly. I recently added a quirk to work around this, and this patch fixes a typo in the quirk. We pad every ACPI pathname component to four characters, so ".ISA." will never match anything. We need ".ISA_." instead. Thank you Johann-Nikolaus Andreae <johann-nikolaus.andreae@nacs.de> for patiently testing this patch. See http://bugzilla.kernel.org/show_bug.cgi?id=4773Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 25 3月, 2008 4 次提交
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由 Andrew Morton 提交于
Revert as it is reported to cause problems for people. commit 4348a2dc Author: Shaohua Li <shaohua.li@intel.com> Date: Wed Oct 24 10:45:08 2007 +0800 pcie: utilize pcie transaction pending bit PCIE has a mechanism to wait for Non-Posted request to complete. I think pci_disable_device is a good place to do this. Signed-off-by: NShaohua Li <shaohua.li@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de> Due to the regression reported at http://bugzilla.kernel.org/show_bug.cgi?id=10065 Cc: Shaohua Li <shaohua.li@intel.com> Cc: Soeren Sonnenburg <kernel@nn7.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Mark Gross 提交于
lockdep goes off on the iova copy_reserved_iova() because it and a function it calls grabs locks in the from, and the to of the copy operation. The function grab locks of the same lock classes triggering the warning. The first lock grabbed is for the constant reserved areas that is never accessed after early boot. Technically you could do without grabbing the locks for the "from" structure its copying reserved areas from. But dropping the from locks to me looks wrong, even though it would be ok. The affected code only runs in early boot as its setting up the DMAR engines. This patch gives the reserved_ioval_list locks special lockdep classes. Signed-off-by: NMark Gross <mgross@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Andrew Morton 提交于
Try to find the culprit who caused http://bugzilla.kernel.org/show_bug.cgi?id=10150 Cc: <balajirrao@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Jean-Samuel Chenard 提交于
Mapping of physical memory in UIO needs pgprot_noncached() to ensure that IO memory is not cached. Without pgprot_noncached(), it (accidentally) works on x86 and arm, but fails on PPC. Signed-off-by: NJean-Samuel Chenard <jsamch@gmail.com> Signed-off-by: NHans J Koch <hjk@linutronix.de> Cc: stable <stable@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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