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2008-11-12Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dmaengine: struct device - replace bus_id with dev_name(), dev_set_name() iop-adma: use iop_paranoia() for debug BUG_ONs iop-adma: add a dummy read to flush next descriptor update
2008-11-12MN10300: Don't do misalignment handling for userspaceDavid Howells
Don't do misalignment handling for userspace misalignment faults: just generate an appropriate SIGBUS instead. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Don't handle misaligned loading and storing of SPDavid Howells
Don't handle the misaligned loading and storing of the SP register as in C code that's most certainly a compiler bug. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Handle misaligned SP-based operandsDavid Howells
Support misalignment handling for instructions that have kernel SP-based address operands, including fixing those that include IMM8 or IMM16 displacements. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Fix misaligned index-register addressing handlingDavid Howells
Fix misalignment handling for an address calculated from the sum of two registers. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Handle misaligned postinc-with-imm addressing mode correctlyDavid Howells
Correctly handle misalignment in MOV instructions with postinc-with-immediate addressing mode operands. In these, the immediate value is the increment to be applied the address register, not the displacement to the address. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Perform misalignment fixups of MOV_LccDavid Howells
Perform misalignment fixups of the MOV_Lcc instructions (move postinc memory to register and conditionally loop). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Allow misalignment fixup in interrupt handlingDavid Howells
Allow misalignment fixup in interrupt handling in the MN10300 arch. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Fix register-postinc addressing misalignment handlingDavid Howells
Fix misalignment handling of operands with register postincrement addressing. The flag to indicate that postincrement is required should not be interpreted as an specification of a value to be added to the address. Also add BUGs to catch unimplemented parameter markings in the opcodes table. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Extract the displacement from an insn correctly in misalignment fixupDavid Howells
Extract the displacement from an MN10300 instruction correctly in the misalignment fixup handler. The code should extract the displacement in LSB order, not MSB order. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Add further misalignment fixupsDavid Howells
Add further misalignment fixup support to the MN10300 arch, notably for ABS32 and SP+disp addressing. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Add built-in testing for misalignment handlerDavid Howells
Add configurable built-in testing for the MN10300 misalignment handler. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12MN10300: Clean up the misalignment handler a littleDavid Howells
Clean up the MN10300 misalignment handler a little by: (1) Use ilog2() rather than doing implementing log2() locally. (2) Make format_tbl[] const and static. (3) Making the debugging prints more consistent. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-12Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: Fix pit memory leak if unable to allocate irq source id KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP KVM: VMX: Set IGMT bit in EPT entry KVM: Require the PCI subsystem x86: KVM guest: fix section mismatch warning in kvmclock.c KVM: ia64: Use guest signal mask when blocking KVM: MMU: increase per-vcpu rmap cache alloc size
2008-11-12Merge branch 'release' of ↵Linus Torvalds
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: (47 commits) ACPI: pci_link: remove acpi_irq_balance_set() interface fujitsu-laptop: Add DMI callback for Lifebook S6420 ACPI: EC: Don't do transaction from GPE handler in poll mode. ACPI: EC: lower interrupt storm treshold ACPICA: Use spinlock for acpi_{en|dis}able_gpe ACPI: EC: restart failed command ACPI: EC: wait for last write gpe ACPI: EC: make kernel messages more useful when GPE storm is detected ACPI: EC: revert msleep patch thinkpad_acpi: fingers off backlight if video.ko is serving this functionality sony-laptop: fingers off backlight if video.ko is serving this functionality msi-laptop: fingers off backlight if video.ko is serving this functionality fujitsu-laptop: fingers off backlight if video.ko is serving this functionality eeepc-laptop: fingers off backlight if video.ko is serving this functionality compal: fingers off backlight if video.ko is serving this functionality asus-acpi: fingers off backlight if video.ko is serving this functionality Acer-WMI: fingers off backlight if video.ko is serving this functionality ACPI video: if no ACPI backlight support, use vendor drivers ACPI: video: Ignore devices that aren't present in hardware Delete an unwanted return statement at evgpe.c ...
2008-11-11Merge branch 'misc' into releaseLen Brown
2008-11-11ACPI: pci_link: remove acpi_irq_balance_set() interfaceBjorn Helgaas
This removes the acpi_irq_balance_set() interface from the PCI interrupt link driver. x86 used acpi_irq_balance_set() to tell the PCI interrupt link driver to configure links to minimize IRQ sharing. But the link driver can easily figure out whether to turn on IRQ balancing based on the IRQ model (PIC/IOAPIC/etc), so we can get rid of that external interface. It's better for the driver to figure this out at init-time. If we set it externally via the x86 code, the interface reduces modularity, and we depend on the fact that acpi_process_madt() happens before we process the kernel command line. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-11iop-adma: use iop_paranoia() for debug BUG_ONsDan Williams
Now that the critical read back to flush the next descriptor address is fixed we can downgrade some BUG_ONs that need only be enabled when testing changes to the driver. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-11-11KVM: Fix pit memory leak if unable to allocate irq source idAvi Kivity
Reported-By: Daniel Marjamäki <danielm77@spray.se> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-11-11KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMPXiantao Zhang
In the case of !CONFIG_SMP, raw_spinlock_t is empty and the spinlock functions don't build. Fix by defining spinlock functions for the uniprocessor case. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11KVM: VMX: Set IGMT bit in EPT entrySheng Yang
There is a potential issue that, when guest using pagetable without vmexit when EPT enabled, guest would use PAT/PCD/PWT bits to index PAT msr for it's memory, which would be inconsistent with host side and would cause host MCE due to inconsistent cache attribute. The patch set IGMT bit in EPT entry to ignore guest PAT and use WB as default memory type to protect host (notice that all memory mapped by KVM should be WB). Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11KVM: Require the PCI subsystemAvi Kivity
PCI device assignment makes calls to pci code, so require it to be built into the kernel. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-11-11x86: KVM guest: fix section mismatch warning in kvmclock.cRakib Mullick
WARNING: arch/x86/kernel/built-in.o(.text+0x1722c): Section mismatch in reference from the function kvm_setup_secondary_clock() to the function .devinit.text:setup_secondary_APIC_clock() The function kvm_setup_secondary_clock() references the function __devinit setup_secondary_APIC_clock(). This is often because kvm_setup_secondary_clock lacks a __devinit annotation or the annotation of setup_secondary_APIC_clock is wrong. Signed-off-by: Md.Rakib H. Mullick <rakib.mullick@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timers: handle HRTIMER_CB_IRQSAFE_UNLOCKED correctly from softirq context nohz: disable tick_nohz_kick_tick() for now irq: call __irq_enter() before calling the tick_idle_check x86: HPET: enter hpet_interrupt_handler with interrupts disabled x86: HPET: read from HPET_Tn_CMP() not HPET_T0_CMP x86: HPET: convert WARN_ON to WARN_ON_ONCE
2008-11-11KVM: ia64: Use guest signal mask when blockingXiantao Zhang
Before a vcpu blocks, it should switch to the guest signal mask to allow signals to unblock it. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11KVM: MMU: increase per-vcpu rmap cache alloc sizeMarcelo Tosatti
The page fault path can use two rmap_desc structures, if: - walk_addr's dirty pte update allocates one rmap_desc. - mmu_lock is dropped, sptes are zapped resulting in rmap_desc being freed. - fetch->mmu_set_spte allocates another rmap_desc. Increase to 4 for safety. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-11Merge branch 'merge' of ↵Linus Torvalds
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: Update desktop/server defconfigs powerpc: Fix msr check in compat_sys_swapcontext powerpc: Repair device bindings documentation powerpc: Updated Freescale PPC related defconfigs powerpc: Update QE/CPM2 usb_ctlr structures for USB support powerpc/86xx: Correct SOC bus-frequency in GE Fanuc SBC610 DTS powerpc: Fix Book-E watchdog timer interval setting powerpc/fsl-booke: Fix synchronization bug w/local tlb invalidates
2008-11-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Update defconfig. Revert "sparc: correct section of current_pc()"
2008-11-11powerpc: Update desktop/server defconfigsPaul Mackerras
Turned off CONFIG_PCI_LEGACY and turned on EXT4, and otherwise mostly took the defaults. This also updates ppc6xx_defconfig, which covers the 6xx/7xx/7xxx-based embedded boards. Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-11-11powerpc: Fix msr check in compat_sys_swapcontextAndreas Schwab
The new context may not be 16-byte aligned, so the real address of the mcontext structure should be read from the uc_regs pointer instead of directly using the (unaligned) uc_mcontext field. Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-11-10x86: Make NUMA on 32-bit depend on BROKENRafael J. Wysocki
While investigating the failure of hibernation on 32-bit x86 with CONFIG_NUMA set, as described in this message http://marc.info/?l=linux-kernel&m=122634118116226&w=4 I asked some people for help and I was told that it wasn't really worth the effort, because CONFIG_NUMA was generally broken on 32-bit x86 systems and it shouldn't be used in such configs. For this reason, make CONFIG_NUMA depend on BROKEN instead of EXPERIMENTAL on x86-32. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Andi Kleen <andi@firstfloor.org> Cc: Pavel Machek <pavel@suse.cz> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-10sparc64: Update defconfig.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-10Revert "sparc: correct section of current_pc()"David S. Miller
This reverts commit 8dd9453737822469837d48d5da3785ce70fb2118. This fixes a boot failure reported by Robert Reif. The code above the section change expects to fallthrough, so we can't make such a section change here.
2008-11-10x86: HPET: enter hpet_interrupt_handler with interrupts disabledMatt Fleming
Some functions that may be called from this handler require that interrupts are disabled. Also, combining IRQF_DISABLED and IRQF_SHARED does not reliably disable interrupts in a handler, so remove IRQF_SHARED from the irq flags (this irq is not shared anyway). Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Cc: "Will Newton" <will.newton@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-11-10x86: HPET: read from HPET_Tn_CMP() not HPET_T0_CMPMatt Fleming
In hpet_next_event() we check that the value we just wrote to HPET_Tn_CMP(timer) has reached the chip. Currently, we're checking that the value we wrote to HPET_Tn_CMP(timer) is in HPET_T0_CMP, which, if timer is anything other than timer 0, is likely to fail. Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-11-10x86: HPET: convert WARN_ON to WARN_ON_ONCEMatt Fleming
It is possible to flood the console with call traces if the WARN_ON condition is true because of the frequency with which this function is called. Signed-off-by: Matt Fleming <mjf@gentoo.org> Cc: mingo@elte.hu Cc: venkatesh.pallipadi@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-11-08powerpc: Updated Freescale PPC related defconfigsKumar Gala
unset CONFIG_PCI_LEGACY in the defconfigs as none of them enable ISDN drivers which seem to be the only place we are using pci_find_device Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-11-08powerpc: Update QE/CPM2 usb_ctlr structures for USB supportLi Yang
Fixes following build error: CC drivers/usb/gadget/fsl_qe_udc.o drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eprx_stall_change': drivers/usb/gadget/fsl_qe_udc.c:156: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:163: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eptx_stall_change': drivers/usb/gadget/fsl_qe_udc.c:173: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:180: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eprx_nack': drivers/usb/gadget/fsl_qe_udc.c:201: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:201: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_eprx_normal': drivers/usb/gadget/fsl_qe_udc.c:218: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:218: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_ep_reset': drivers/usb/gadget/fsl_qe_udc.c:325: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c:342: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'qe_ep_register_init': drivers/usb/gadget/fsl_qe_udc.c:515: error: 'struct usb_ctlr' has no member named 'usb_usep' drivers/usb/gadget/fsl_qe_udc.c: In function 'ch9getstatus': drivers/usb/gadget/fsl_qe_udc.c:1981: error: 'struct usb_ctlr' has no member named 'usb_usep' make[2]: *** [drivers/usb/gadget/fsl_qe_udc.o] Error 1 Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-11-08powerpc/86xx: Correct SOC bus-frequency in GE Fanuc SBC610 DTSMartyn Welch
This patch corrects the bus-frequency value provided in the SBC610's dts. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-11-08powerpc/fsl-booke: Fix synchronization bug w/local tlb invalidatesKumar Gala
The implemetation of _tlbil_pid() on Freescale Book-E cores needs an msync & isync after we flash invalidate the TLBs. This was causing the following oops reported by Sebastian Andrzej Siewior: VFS: Mounted root (nfs filesystem) readonly. Freeing unused kernel memory: 148k init BUG: sleeping function called from invalid context at /home/bigeasy/git/linux-2.6-powerpc/mm/mmap.c:234 in_atomic():1, irqs_disabled():0 Call Trace: [df189df0] [c0007160] show_stack+0x48/0x148 (unreliable) [df189e30] [c0029480] __might_sleep+0xf0/0x100 [df189e40] [c0070ac0] remove_vma+0x28/0x98 [df189e50] [c0070c1c] exit_mmap+0xec/0x128 [df189e80] [c002d2f4] mmput+0x54/0xec [df189ea0] [c0030b6c] exit_mm+0x10c/0x120 [df189ed0] [c003288c] do_exit+0x1ac/0x6e8 [df189f20] [c0032e48] do_group_exit+0x80/0xac [df189f40] [c000e9dc] ret_from_syscall+0x0/0x3c BUG: scheduling while atomic: udevd/956/0x10000002 Modules linked in: Call Trace: [df189df0] [c0007160] show_stack+0x48/0x148 (unreliable) [df189e30] [c002ac88] __schedule_bug+0x58/0x6c [df189e40] [c023e6cc] schedule+0xa8/0x4a8 [df189e90] [c002ad6c] __cond_resched+0x38/0x64 [df189ea0] [c023ebc8] _cond_resched+0x3c/0x58 [df189eb0] [c0030e70] put_files_struct+0x90/0xec [df189ed0] [c00328a8] do_exit+0x1c8/0x6e8 [df189f20] [c0032e48] do_group_exit+0x80/0xac [df189f40] [c000e9dc] ret_from_syscall+0x0/0x3c Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-11-08Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: optimize sched_clock() a bit sched: improve sched_clock() performance
2008-11-08sched: optimize sched_clock() a bitIngo Molnar
sched_clock() uses cycles_2_ns() needlessly - which is an irq-disabling variant of __cycles_2_ns(). Most of the time sched_clock() is called with irqs disabled already. The few places that call it with irqs enabled need to be updated. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-08sched: improve sched_clock() performanceIngo Molnar
in scheduler-intense workloads native_read_tsc() overhead accounts for 20% of the system overhead: 659567 system_call 41222.9375 686796 schedule 435.7843 718382 __switch_to 665.1685 823875 switch_mm 4526.7857 1883122 native_read_tsc 55385.9412 9761990 total 2.8468 this is large part due to the rdtsc_barrier() that is done before and after reading the TSC. But sched_clock() is not a precise clock in the GTOD sense, using such barriers is completely pointless. So remove the barriers and only use them in vget_cycles(). This improves lat_ctx performance by about 5%. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-07Merge branch 'oprofile-for-tip' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
2008-11-07Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMP [IA64] fix boot panic caused by offline CPUs [IA64] reorder Kconfig options to match x86 [IA64] Build VT-D iommu support into generic kernel [IA64] remove dead BIO_VMERGE_BOUNDARY definition [IA64] remove duplicated #include from pci-dma.c [IA64] use common header for software IO/TLB [IA64] fix the difference between node_mem_map and node_start_pfn [IA64] Add error_recovery_info field to SAL section header [IA64] Add UV watchlist support. [IA64] Simplify SGI uv vs. sn2 driver issues
2008-11-07[IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMPJay Lan
IA64 kdump kernel failed to initialize /proc/vmcore in 2.6.28-rc2. A bug was introduced in this patch commit: d9a9855d0b06ca6d6cc92596fedcc03f8512e062 always reserve elfcore header memory in crash kernel The problem was that the call to reserve_elfcorehdr() should be placed in CONFIG_CRASH_DUMP rather than in CONFIG_CRASH_KERNEL, which does not exist. Signed-off-by: Jay Lan <jlan@sgi.com> Acked-by: Simon Hormon <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-11-07Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, xen: fix use of pgd_page now that it really does return a page
2008-11-07oprofile: Fix p6 counter overflow checkAndi Kleen
Fix the counter overflow check for CPUs with counter width > 32 I had a similar change in a different patch that I didn't submit and I didn't notice the problem earlier because it was always tested together. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
2008-11-07xen: make sure stray alias mappings are gone before pinningJeremy Fitzhardinge
Xen requires that all mappings of pagetable pages are read-only, so that they can't be updated illegally. As a result, if a page is being turned into a pagetable page, we need to make sure all its mappings are RO. If the page had been used for ioremap or vmalloc, it may still have left over mappings as a result of not having been lazily unmapped. This change makes sure we explicitly mop them all up before pinning the page. Unlike aliases created by kmap, the there can be vmalloc aliases even for non-high pages, so we must do the flush unconditionally. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Linux Memory Management List <linux-mm@kvack.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-06Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: Revert "x86: default to reboot via ACPI" x86: align DirectMap in /proc/meminfo AMD IOMMU: fix lazy IO/TLB flushing in unmap path x86: add smp_mb() before sending INVALIDATE_TLB_VECTOR x86: remove VISWS and PARAVIRT around NR_IRQS puzzle x86: mention ACPI in top-level Kconfig menu x86: size NR_IRQS on 32-bit systems the same way as 64-bit x86: don't allow nr_irqs > NR_IRQS x86/docs: remove noirqbalance param docs x86: don't use tsc_khz to calculate lpj if notsc is passed x86, voyager: fix smp_intr_init() compile breakage AMD IOMMU: fix detection of NP capable IOMMUs
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