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2011-01-21acpi_pm: Clear pmtmr_ioport if acpi_pm initialization failsKonrad Rzeszutek Wilk1-1/+5
If the acpi pm timer throws invalid data, clear pmtmr_ioport so the pm timer won't accidentally be used. This was found when using Xen where there is a acpi pm reported, but gives bogus values, and other code was continuing to try to use the pm timer after the initialization failed. [jstultz: Catch additional failure and reword changelog message. ] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: John Stultz <johnstul@us.ibm.com> LKML-Reference: <1295027246-11110-1-git-send-email-johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-01-21rtc: Cleanup removed UIE emulation declarationJohn Stultz1-2/+0
rtc_dev_update_irq_enable_emul was removed in commit 042620a018afcfba1d678062b62e463b9e43a68d (UIE emulation is now handled via hrtimer), but the declaration was missed. This patch cleans it up. Signed-off-by: John Stultz <john.stultz@linaro.org> LKML-Reference: <1294939849-20608-1-git-send-email-john.stultz@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-01-21xen: p2m: correctly initialize partial p2m leafStefan Bader1-1/+19
After changing the p2m mapping to a tree by commit 58e05027b530ff081ecea68e38de8d59db8f87e0 xen: convert p2m to a 3 level tree and trying to boot a DomU with 615MB of memory, the following crash was observed in the dump: kernel direct mapping tables up to 26f00000 @ 1ec4000-1fff000 BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<c0107397>] xen_set_pte+0x27/0x60 *pdpt = 0000000000000000 *pde = 0000000000000000 Adding further debug statements showed that when trying to set up pfn=0x26700 the returned mapping was invalid. pfn=0x266ff calling set_pte(0xc1fe77f8, 0x6b3003) pfn=0x26700 calling set_pte(0xc1fe7800, 0x3) Although the last_pfn obtained from the startup info is 0x26700, which should in turn not be hit, the additional 8MB which are added as extra memory normally seem to be ok. This lead to looking into the initial p2m tree construction, which uses the smaller value and assuming that there is other code handling the extra memory. When the p2m tree is set up, the leaves are directly pointed to the array which the domain builder set up. But if the mapping is not on a boundary that fits into one p2m page, this will result in the last leaf being only partially valid. And as the invalid entries are not initialized in that case, things go badly wrong. I am trying to fix that by checking whether the current leaf is a complete map and if not, allocate a completely new page and copy only the valid pointers there. This may not be the most efficient or elegant solution, but at least it seems to allow me booting DomUs with memory assignments all over the range. BugLink: http://bugs.launchpad.net/bugs/686692 [v2: Redid a bit of commit wording and fixed a compile warning] Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-01-21perf: Annotate cpuctx->ctx.mutex to avoid a lockdep splatPeter Zijlstra1-0/+3
Lockdep spotted: loop_1b_instruc/1899 is trying to acquire lock: (event_mutex){+.+.+.}, at: [<ffffffff810e1908>] perf_trace_init+0x3b/0x2f7 but task is already holding lock: (&ctx->mutex){+.+.+.}, at: [<ffffffff810eb45b>] perf_event_init_context+0xc0/0x218 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ctx->mutex){+.+.+.}: -> #2 (cpu_hotplug.lock){+.+.+.}: -> #1 (module_mutex){+.+...}: -> #0 (event_mutex){+.+.+.}: But because the deadlock would be cpuhotplug (cpu-event) vs fork (task-event) it cannot, in fact, happen. We can annotate this by giving the perf_event_context used for the cpuctx a different lock class from those used by tasks. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-21x86, mcheck, therm_throt.c: Export symbol platform_thermal_notify to allow coretemp to handler intrFenghua Yu1-0/+1
In therm_throt.c, commit 9e76a97efd31a08cb19d0ba12013b8fb4ad3e474 patch doesn't export the symbol platform_thermal_notify. Other drivers (e.g. drivers/hwmon/coretemp.c) can not find the symbol platform_thermal_notify when defining threshould interrupt handler. Please apply this patch to allow threshold interrupt handler in coretemp. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Cc: R Durgadoss <durgadoss.r@intel.com> Cc: khali@linux-fr.org <khali@linux-fr.org> Cc: lm-sensors@lm-sensors.org <lm-sensors@lm-sensors.org> Cc: Guenter Roeck <guenter.roeck@ericsson.com> LKML-Reference: <20110121041239.GB26954@linux-os.sc.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-21x86: Use asm-generic/cacheflush.hAkinobu Mita1-41/+1
The implementation of the cache flushing interfaces on the x86 is identical with the default implementation in asm-generic. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: arnd@arndb.de LKML-Reference: <1295523136-4277-2-git-send-email-akinobu.mita@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-21um: Use generic irq KconfigThomas Gleixner1-5/+1
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jeff Dike <jdike@addtoit.com>
2011-01-21tile: Use generic irq KconfigThomas Gleixner1-29/+21
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Chris Metcalf <cmetcalf@tilera.com>
2011-01-21sparc: Use generic irq KconfigThomas Gleixner1-4/+1
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: "David S. Miller" <davem@davemloft.net>
2011-01-21score: Use generic irq KconfigThomas Gleixner1-3/+4
No functional change Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Chen Liqin <liqin.chen@sunplusct.com>
2011-01-21powerpc: Use generic irq KconfigThomas Gleixner1-21/+3
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-01-21parisc: Use generic irq KconfigThomas Gleixner1-10/+4
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2011-01-21mn10300: Use generic irq KconfigThomas Gleixner1-4/+1
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Howells <dhowells@redhat.com>
2011-01-21microblaze: Use generic irq KconfigThomas Gleixner1-6/+2
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michal Simek <monstr@monstr.eu>
2011-01-21m68knommu: Use generic irq KconfigThomas Gleixner1-4/+1
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Greg Ungerer <gerg@uclinux.org>
2011-01-21ia64: Use generic irq KconfigThomas Gleixner1-19/+4
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Tony Luck <tony.luck@intel.com>
2011-01-21frv: Use generic irq KconfigThomas Gleixner1-4/+1
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Howells <dhowells@redhat.com>
2011-01-21blackfin: Use generic irq KconfigThomas Gleixner1-11/+3
No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mike Frysinger <vapier@gentoo.org>
2011-01-21alpha: Use generic irq KconfigThomas Gleixner1-13/+3
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net>
2011-01-21genirq: Remove __do_IRQThomas Gleixner18-183/+0
All architectures are finally converted. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Mike Frysinger <vapier@gentoo.org> Cc: David Howells <dhowells@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Michal Simek <monstr@monstr.eu> Acked-by: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com>
2011-01-21m32r: Convert to generic irq KconfigThomas Gleixner1-8/+3
Use the generic irq Kconfig. Select GENERIC_HARDIRQS_NO_DEPRECATED as we have converted all irq_chip functions. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert usrv platform irq handlingThomas Gleixner1-48/+40
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert opsput_lcdpld irq chipThomas Gleixner1-26/+16
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert opsput lanpld irq chipThomas Gleixner1-20/+12
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert opsput pld irq chipThomas Gleixner1-26/+20
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert opsput irq chipThomas Gleixner1-31/+27
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert oaks32r irq chipsThomas Gleixner1-25/+22
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert mappi3 irq chipThomas Gleixner1-31/+31
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert mappi2 irq chipThomas Gleixner1-29/+30
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert mappi irq chipsThomas Gleixner1-27/+26
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert m32700ut lcdpld irq chipThomas Gleixner1-20/+12
Convert the irq chip to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert m32700ut lanpld irq chipThomas Gleixner1-20/+12
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert m32700ut pld irq chipThomas Gleixner1-28/+20
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert m32104ut irq chipThomas Gleixner1-29/+27
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Convert m32104ut irq handlingThomas Gleixner1-25/+21
Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21m32r: Cleanup direct irq_desc accessThomas Gleixner9-307/+83
The irq descriptors are already initialized by the generic code. Remove the redundant init code and set the irq chip with the proper accessor function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21cris: Use generic irq KconfigThomas Gleixner2-5/+3
Use the generic irq Kconfig. Select GENERIC_HARDIRQS_NO_DEPRECATED as we have converted all irq_chip functions. Fix the fallout in show_interrupts(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
2011-01-21cris: Convert V32 interrupt handlingThomas Gleixner1-35/+15
Convert the irq chip functions and install handle_simple_irq for each interrupt to get rid of __do_IRQ() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
2011-01-21cris: Convert V10 interrupt handlingThomas Gleixner1-31/+10
Convert the irq_chip functions and install handle_simple_irq for each interrupt. This converts V10 to the flow handling and lets us remove __do_IRQ(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
2011-01-21cris: Use irq handling wrapperThomas Gleixner1-2/+2
Use the wrapper around __do_IRQ() so we can convert V10 and V32 seperately. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
2011-01-21h8300: Use generic irq KconfigThomas Gleixner2-5/+3
Switch to the generic irq Kconfig. h8300 has all irq chips converted to the new functions, so select the GENERIC_HARDIRQS_NO_DEPRECATED switch as well. Fixup the resulting fallout in show_interrupts(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21h8300: Convert interrupt handling to flow handlerThomas Gleixner1-12/+3
__do_IRQ is deprecated so h8300 needs to be converted to proper flow handling. The irq chip is simple and does not required any mask/ack/eoi functions, so we can use handle_simple_irq. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-21h8300: Convert to new irq_chip functionsThomas Gleixner1-17/+16
No functional change, just straight forward conversion. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Paul Mundt <lethal@linux-sh.org>
2011-01-20net_sched: accurate bytes/packets stats/ratesEric Dumazet14-33/+29
In commit 44b8288308ac9d (net_sched: pfifo_head_drop problem), we fixed a problem with pfifo_head drops that incorrectly decreased sch->bstats.bytes and sch->bstats.packets Several qdiscs (CHOKe, SFQ, pfifo_head, ...) are able to drop a previously enqueued packet, and bstats cannot be changed, so bstats/rates are not accurate (over estimated) This patch changes the qdisc_bstats updates to be done at dequeue() time instead of enqueue() time. bstats counters no longer account for dropped frames, and rates are more correct, since enqueue() bursts dont have effect on dequeue() rate. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20rtnetlink: fix link attribute validation with IFLA_GROUPPatrick McHardy1-5/+8
rtnl_group_changelink() is invoked by rtnl_newlink() before the link attributes have been validated. Additionally the group changes are performed even if NLM_F_CREATE is specified and a new link is created, while more reasonable semantics would be to set the group value on the newly created link. Fix both problems by moving the rtnl_group_changelink() invocation down to the handling of non-existant links without NLM_F_CREATE() and add a dev_set_group() call to rtnl_create_link(). Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Vlad Dogaru <ddvlad@rosedu.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20ppp: Use SKB queue abstraction interfaces in fragment processing.David S. Miller1-15/+16
No more direct references to SKB queue and list implementation details. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20net: Add safe reverse SKB queue walkers.David S. Miller1-0/+9
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-20ppp: Reconstruct fragmented packets using frag lists instead of copying.David S. Miller1-16/+23
[paulus@samba.org: fixed a couple of bugs] Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2011-01-20ppp: Clean up kernel log messages.David S. Miller1-37/+49
Use netdev_*() and pr_*(). To preserve existing semantics in cases where KERN_DEBUG is indeed appropriate, use netdev_printk(KERN_DEBUG, ...) Convert PPPIOCDETACH to pr_warn() because an unexpected file count is a serious bug and should be logged with KERN_WARN. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2011-01-21powerpc/mpic: Fix mask/unmask timeout messageScott Wood1-2/+4
Don't say that enable timed out when it was disable, and show which IRQ had the problem. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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