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* Merge branch 'core/xen' into x86/urgentIngo Molnar2009-02-04
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| * Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds2009-01-31
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, ds, bts: cleanup/fix DS configuration ring-buffer: reset timestamps when ring buffer is reset trace: set max latency variable to zero on default trace: stop all recording to ring buffer on ftrace_dump trace: print ftrace_dump at KERN_EMERG log level ring_buffer: reset write when reserve buffer fail tracing/function-graph-tracer: fix a regression while suspend to disk ring-buffer: fix alignment problem
| | * x86, ds, bts: cleanup/fix DS configurationMarkus Metzger2009-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cleanup the cpuid check for DS configuration. This also fixes a Corei7 CPUID enumeration bug. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-01-31
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 setup: fix asm constraints in vesa_store_edid xen: make sysfs files behave as their names suggest x86: tone down mtrr_trim_uncached_memory() warning x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability
| * | | Documentation: move DMA-mapping.txt to Doc/PCI/Randy Dunlap2009-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move DMA-mapping.txt to Documentation/PCI/. DMA-mapping.txt was supposed to be moved from Documentation/ to Documentation/PCI/. The 00-INDEX files in those two directories were updated, along with a few other text files, but the file itself somehow escaped being moved, so move it and update more text files and source files with its new location. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds2009-01-26
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: debugobjects: add and use INIT_WORK_ON_STACK rcu: remove duplicate CONFIG_RCU_CPU_STALL_DETECTOR relay: fix lock imbalance in relay_late_setup_files oprofile: fix uninitialized use of struct op_entry rcu: move Kconfig menu softlock: fix false panic which can occur if softlockup_thresh is reduced rcu: add __cpuinit to rcu_init_percpu_data()
| | * | | debugobjects: add and use INIT_WORK_ON_STACKThomas Gleixner2009-01-22
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Fix debugobjects warning debugobject enabled kernels spit out a warning in hpet code due to a workqueue which is initialized on stack. Add INIT_WORK_ON_STACK() which calls init_timer_on_stack() and use it in hpet. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds2009-01-26
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: hrtimers: fix inconsistent lock state on resume in hres_timers_resume time-sched.c: tick_nohz_update_jiffies should be static locking, hpet: annotate false positive warning kernel/fork.c: unused variable 'ret' itimers: remove the per-cpu-ish-ness
| | * | | locking, hpet: annotate false positive warningPeter Zijlstra2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Alexander Beregalov reported that this warning is caused by the HPET code: > hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 > hpet0: 3 comparators, 64-bit 14.318180 MHz counter > ODEBUG: object is on stack, but not annotated > ------------[ cut here ]------------ > WARNING: at lib/debugobjects.c:251 __debug_object_init+0x2a4/0x352() > Bisected down to 26afe5f2fbf06ea0765aaa316640c4dd472310c0 > (x86: HPET_MSI Initialise per-cpu HPET timers) The commit is fine - but the on-stack workqueue entry needs annotation. Reported-and-bisected-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Tested-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-01-26
| |\ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (29 commits) xen: unitialised return value in xenbus_write_transaction x86: fix section mismatch warning x86: unmask CPUID levels on Intel CPUs, fix x86: work around PAGE_KERNEL_WC not getting WC in iomap_atomic_prot_pfn. x86: use standard PIT frequency xen: handle highmem pages correctly when shrinking a domain x86, mm: fix pte_free() xen: actually release memory when shrinking domain x86: unmask CPUID levels on Intel CPUs x86: add MSR_IA32_MISC_ENABLE bits to <asm/msr-index.h> x86: fix PTE corruption issue while mapping RAM using /dev/mem x86: mtrr fix debug boot parameter x86: fix page attribute corruption with cpa() Revert "x86: signal: change type of paramter for sys_rt_sigreturn()" x86: use early clobbers in usercopy*.c x86: remove kernel_physical_mapping_init() from init section fix: crash: IP: __bitmap_intersects+0x48/0x73 cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write work_on_cpu: Use our own workqueue. work_on_cpu: don't try to get_online_cpus() in work_on_cpu. ...
| * | | | Merge branch 'misc' into releaseLen Brown2009-01-16
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| | * | | | kprobes: check CONFIG_FREEZER instead of CONFIG_PMMasami Hiramatsu2009-01-16
| | | |/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check CONFIG_FREEZER instead of CONFIG_PM because kprobe booster depends on freeze_processes() and thaw_processes() when CONFIG_PREEMPT=y. This fixes a linkage error which occurs when CONFIG_PREEMPT=y, CONFIG_PM=y and CONFIG_FREEZER=n. Reported-by: Cheng Renquan <crquan@gmail.com> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | [CVE-2009-0029] Rename old_readdir to sys_old_readdirHeiko Carstens2009-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This way it matches the generic system call name convention. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
* | | | | x86: APIC: enable workaround on AMD Fam10h CPUsBorislav Petkov2009-02-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix to enable APIC for AMD Fam10h on chipsets with a missing/b0rked ACPI MP table (MADT) Booting a 32bit kernel on an AMD Fam10h CPU running on chipsets with missing/b0rked MP table leads to a hang pretty early in the boot process due to the APIC not being initialized. Fix that by falling back to the default APIC base address in 32bit code, as it is done in the 64bit codepath. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | | | x86: push old stack address on irqstack for unwinderMartin Hicks2009-02-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Fixes dumpstack and KDB on 64 bits This re-adds the old stack pointer to the top of the irqstack to help with unwinding. It was removed in commit d99015b1abbad743aa049b439c1e1dede6d0fa49 as part of the save_args out-of-line work. Both dumpstack and KDB require this information. Signed-off-by: Martin Hicks <mort@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | | | irq, x86: fix lock status with numa_migrate_irq_descYinghai Lu2009-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eric Paris reported: > I have an hp dl785g5 which is unable to successfully run > 2.6.29-0.66.rc3.fc11.x86_64 or 2.6.29-rc2-next-20090126. During bootup > (early in userspace daemons starting) I get the below BUG, which quickly > renders the machine dead. I assume it is because sparse_irq_lock never > gets released when the BUG kills that task. Adjust lock sequence when migrating a descriptor with CONFIG_NUMA_MIGRATE_IRQ_DESC enabled. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | x86: add cache descriptors for Intel Core i7Dave Jones2009-02-01
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | x86/Voyager: make it build and bootJames Bottomley2009-01-31
| |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ mingo@elte.hu: these fixes are a subset of changes cherry-picked from: git://git.kernel.org:/pub/scm/linux/kernel/git/jejb/voyager-2.6.git They fix various problems that recent x86 changes caused in the Voyager subarchitecture: both APIC changes and cpumask changes and certain cleanups caused subarch assumptions to break. Most of these changes are obsolete as the subarch code has been removed from the x86 development tree - but we merge them upstream to make Voyager build and boot. ] Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | x86: tone down mtrr_trim_uncached_memory() warningIngo Molnar2009-01-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kerneloops.org is reporting a lot of these warnings that come due to vmware not setting up any MTRRs for emulated CPUs: | Reported 709 times (14696 total reports) | BIOS bug (often in VMWare) where the MTRR's are set up incorrectly | or not at all | | This warning was last seen in version 2.6.29-rc2-git1, and first | seen in 2.6.24. | | More info: | http://www.kerneloops.org/searchweek.php?search=mtrr_trim_uncached_memory Keep a one-liner KERN_INFO about it - so that we have so notice if empty MTRRs are caused by native hardware/BIOS weirdness. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availabilityH. Peter Anvin2009-01-26
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: re-enable CPUID unmasking on affected processors As far as I am capable of discerning from the documentation, MSR_IA32_MISC_ENABLE should be available for all family 0xf CPUs, as well as family 6 for model >= 0xd (newer Pentium M). The documentation on this isn't ideal, so we need to be on the lookout for errors, still. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | x86: fix section mismatch warningRakib Mullick2009-01-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here function vmi_activate calls a init function activate_vmi , which causes the following section mismatch warnings: LD arch/x86/kernel/built-in.o WARNING: arch/x86/kernel/built-in.o(.text+0x13ba9): Section mismatch in reference from the function vmi_activate() to the function .init.text:vmi_time_init() The function vmi_activate() references the function __init vmi_time_init(). This is often because vmi_activate lacks a __init annotation or the annotation of vmi_time_init is wrong. WARNING: arch/x86/kernel/built-in.o(.text+0x13bd1): Section mismatch in reference from the function vmi_activate() to the function .devinit.text:vmi_time_bsp_init() The function vmi_activate() references the function __devinit vmi_time_bsp_init(). This is often because vmi_activate lacks a __devinit annotation or the annotation of vmi_time_bsp_init is wrong. WARNING: arch/x86/kernel/built-in.o(.text+0x13bdb): Section mismatch in reference from the function vmi_activate() to the function .devinit.text:vmi_time_ap_init() The function vmi_activate() references the function __devinit vmi_time_ap_init(). This is often because vmi_activate lacks a __devinit annotation or the annotation of vmi_time_ap_init is wrong. Fix it by marking vmi_activate() as __init too. Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: unmask CPUID levels on Intel CPUs, fixIngo Molnar2009-01-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix boot hang on pre-model-15 Intel CPUs rdmsrl_safe() does not work in very early bootup code yet, because we dont have the pagefault handler installed yet so exception section does not get parsed. rdmsr_safe() will just crash and hang the bootup. So limit the MSR_IA32_MISC_ENABLE MSR read to those CPU types that support it. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: unmask CPUID levels on Intel CPUsH. Peter Anvin2009-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Fixes crashes with misconfigured BIOSes on XSAVE hardware Avuton Olrich reported early boot crashes with v2.6.28 and bisected it down to dc1e35c6e95e8923cf1d3510438b63c600fee1e2 ("x86, xsave: enable xsave/xrstor on cpus with xsave support"). If the CPUID limit bit in MSR_IA32_MISC_ENABLE is set, clear it to make all CPUID information available. This is required for some features to work, in particular XSAVE. Reported-and-bisected-by: Avuton Olrich <avuton@gmail.com> Tested-by: Avuton Olrich <avuton@gmail.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | x86: mtrr fix debug boot parameterThomas Renninger2009-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | while looking at: http://bugzilla.kernel.org/show_bug.cgi?id=11541 I realized that the mtrr.show param cannot work, because the code is processed much too early. This patch: - Declares mtrr.show as early_param - Stays consistent with the previous param (which I doubt that it ever worked), so mtrr.show=1 would still work - Declares mtrr_show as initdata Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Revert "x86: signal: change type of paramter for sys_rt_sigreturn()"Ingo Molnar2009-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 4217458dafaa57d8e26a46f5d05ab8c53cf64191. Justin Madru bisected this commit, it was causing weird Firefox crashes. The reason is that GCC mis-optimizes (re-uses) the on-stack parameters of the calling frame, which corrupts the syscall return pt_regs state and thus corrupts user-space register state. So we go back to the slightly less clean but more optimization-safe method of getting to pt_regs. Also add a comment to explain this. Resolves: http://bugzilla.kernel.org/show_bug.cgi?id=12505 Reported-and-bisected-by: Justin Madru <jdm64@gawab.com> Tested-by: Justin Madru <jdm64@gawab.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | fix: crash: IP: __bitmap_intersects+0x48/0x73Ingo Molnar2009-01-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | -tip testing found this crash: > [ 35.258515] calling acpi_cpufreq_init+0x0/0x127 @ 1 > [ 35.264127] BUG: unable to handle kernel NULL pointer dereference at (null) > [ 35.267554] IP: [<ffffffff80478092>] __bitmap_intersects+0x48/0x73 > [ 35.267554] PGD 0 > [ 35.267554] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c is still broken: there's no allocation of the variable mask, so we pass in an uninitialized cmd.mask field to drv_read(), which then passes it to the scheduler which then crashes ... Switch it over to the much simpler constant-cpumask-pointers approach. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_writeMike Travis2009-01-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: use new work_on_cpu function to reduce stack usage Replace the saving of current->cpus_allowed and set_cpus_allowed_ptr() with a work_on_cpu function for drv_read() and drv_write(). Basically converts do_drv_{read,write} into "work_on_cpu" functions that are now called by drv_read and drv_write. Note: This patch basically reverts 50c668d6 which reverted 7503bfba, now that the work_on_cpu() function is more stable. Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Tested-by: Dieter Ries <clip2@gmx.de> Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com> Cc: Dave Jones <davej@redhat.com> Cc: <cpufreq@vger.kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: fix section mismatch warnings in kernel/setup_percpu.cLeonardo Potenza2009-01-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function setup_cpu_local_masks() has been marked __init, in order to remove the following section mismatch messages: WARNING: vmlinux.o(.text+0x3c2c7): Section mismatch in reference from the function setup_cpu_local_masks() to the function .init.text:alloc_bootmem_cpumask_var() The function setup_cpu_local_masks() references the function __init alloc_bootmem_cpumask_var(). This is often because setup_cpu_local_masks lacks a __init annotation or the annotation of alloc_bootmem_cpumask_var is wrong. WARNING: vmlinux.o(.text+0x3c2d3): Section mismatch in reference from the function setup_cpu_local_masks() to the function .init.text:alloc_bootmem_cpumask_var() The function setup_cpu_local_masks() references the function __init alloc_bootmem_cpumask_var(). This is often because setup_cpu_local_masks lacks a __init annotation or the annotation of alloc_bootmem_cpumask_var is wrong. WARNING: vmlinux.o(.text+0x3c2df): Section mismatch in reference from the function setup_cpu_local_masks() to the function .init.text:alloc_bootmem_cpumask_var() The function setup_cpu_local_masks() references the function __init alloc_bootmem_cpumask_var(). This is often because setup_cpu_local_masks lacks a __init annotation or the annotation of alloc_bootmem_cpumask_var is wrong. WARNING: vmlinux.o(.text+0x3c2eb): Section mismatch in reference from the function setup_cpu_local_masks() to the function .init.text:alloc_bootmem_cpumask_var() The function setup_cpu_local_masks() references the function __init alloc_bootmem_cpumask_var(). This is often because setup_cpu_local_masks lacks a __init annotation or the annotation of alloc_bootmem_cpumask_var is wrong. Signed-off-by: Leonardo Potenza <lpotenza@inwind.it> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: put trigger in to detect mismatched apic versionsMike Travis2009-01-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add debug warning Fire off one message if two apic's discovered with different apic versions. (this code is only called during CPU init) The goal of this is to pave the way of the removal of the apic_version[] array. We dont expect any apic version incompatibilities in the x86 landscape of systems [if so we dont handle them very well and probably never will handle deep apic version assymetries well], but it's prudent to have a debug check for one kernel cycle nevertheless. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86, UV: cpu_relax in uv_wait_completionCliff Wickman2009-01-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function uv_wait_completion() spins on reads of a memory-mapped register, waiting for completion of BAU hardware replies. It should call "cpu_relax()" between those reads to improve performance on hyperthreaded configurations. Signed-off-by: Cliff Wickman <cpw@sgi.com> Acked-by: Jack Steiner <steiner@sgi.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86: avoid early crash in disable_local_APIC()Jan Beulich2009-01-15
| | | | | | | | | | | | | | | | | | | | | E.g. when called due to an early panic. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | x86, cpufreq: remove leftover copymask_copy()Ingo Molnar2009-01-13
|/ / | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix potential boot crash on MAXSMP Remove code left over by: 50c668d: Revert "cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read That cmd.cpumask is not allocated anymore. No impact on default !MAXSMP kernels. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Revert "i386: add TRACE_IRQS_OFF for the nmi"Ingo Molnar2009-01-12
| | | | | | | | | | | | | | | | | | | | This reverts commit e0c7317557c8fc8eacf611e30c2a80f4e24e47a3. This patch was wrong, as lockdep (and thus the irq state tracer) aren't nmi safe. People are already seeing lockdep warnings due to this. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Revert "cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write"Ingo Molnar2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 7503bfbae89eba07b46441a5d1594647f6b8ab7d. Dieter Ries reported bootup soft-hangs and bisected it back to this commit, and reverting this commit gave him a working system. The commit introduces work_on_cpu() use into the cpufreq code, but that is subtly problematic from a lock hierarchy POV: the hotplug-cpu lock is an highlevel lock that is taken before lowlevel locks, and in this codepath we are called with the policy lock taken. Dieter did not have lockdep enabled so we dont have a nice stack trace proof for this, but using work_on_cpu() in such a lowlevel place certainly looks wrong, so we revert the patch. work_on_cpu() needs to be reworked to be more generally usable. Reported-by: Dieter Ries <clip2@gmx.de> Tested-by: Dieter Ries <clip2@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | x86: fix apic.c build error on latest gitJaswinder Singh Rajput2009-01-12
| | | | | | | | | | | | | | | | | | | | Fix this by reintroducing asm/smp.h include in apic.c - later on I will fix this by removing non-smp data from smp.h Also fix the __inquire_remote_apic() prototype/inline. Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | x86: fix mpparse.c build error on latest gitJaswinder Singh Rajput2009-01-12
|/ | | | | | | | | Fix this by reintroducing asm/smp.h include in mpparse.c - later on I will fix this by removing non-smp data from smp.h. Reported-by: Petr Titera <P.Titera@century.cz> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-01-10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (36 commits) x86: fix section mismatch warnings in mcheck/mce_amd_64.c x86: offer frame pointers in all build modes x86: remove duplicated #include's x86: k8 numa register active regions later x86: update Alan Cox's email addresses x86: rename all fields of mpc_table mpc_X to X x86: rename all fields of mpc_oemtable oem_X to X x86: rename all fields of mpc_bus mpc_X to X x86: rename all fields of mpc_cpu mpc_X to X x86: rename all fields of mpc_intsrc mpc_X to X x86: rename all fields of mpc_lintsrc mpc_X to X x86: rename all fields of mpc_iopic mpc_X to X x86: irqinit_64.c init_ISA_irqs should be static Documentation/x86/boot.txt: payload length was changed to payload_length x86: setup_percpu.c fix style problems x86: irqinit_64.c fix style problems x86: irqinit_32.c fix style problems x86: i8259.c fix style problems x86: irq_32.c fix style problems x86: ioport.c fix style problems ...
| * x86: fix section mismatch warnings in mcheck/mce_amd_64.cLeonardo Potenza2009-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mark the function local_allocate_threshold_blocks() with __cpuinit, in order to remove the following section mismatch messages: WARNING: arch/x86/kernel/cpu/mcheck/built-in.o(.text+0x1363): Section mismatch in reference from the function local_allocate_threshold_blocks() to the function .cpuinit.text:allocate_threshold_blocks() The function local_allocate_threshold_blocks() references the function __cpuinit allocate_threshold_blocks(). This is often because local_allocate_threshold_blocks lacks a __cpuinit annotation or the annotation of allocate_threshold_blocks is wrong. WARNING: arch/x86/kernel/cpu/built-in.o(.text+0x1def): Section mismatch in reference from the function local_allocate_threshold_blocks() to the function .cpuinit.text:allocate_threshold_blocks() The function local_allocate_threshold_blocks() references the function __cpuinit allocate_threshold_blocks(). This is often because local_allocate_threshold_blocks lacks a __cpuinit annotation or the annotation of allocate_threshold_blocks is wrong. WARNING: arch/x86/kernel/built-in.o(.text+0xef2b): Section mismatch in reference from the function local_allocate_threshold_blocks() to the function .cpuinit.text:allocate_threshold_blocks() The function local_allocate_threshold_blocks() references the function __cpuinit allocate_threshold_blocks(). This is often because local_allocate_threshold_blocks lacks a __cpuinit annotation or the annotation of allocate_threshold_blocks is wrong. All the callsites of this function are __cpuinit already, and all the functions it calls are __cpuinit as well. Signed-off-by: Leonardo Potenza <lpotenza@inwind.it> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| *-. Merge branches 'x86/cleanups', 'x86/mpparse', 'x86/numa' and 'x86/uv' into ↵Ingo Molnar2009-01-06
| |\ \ | | | | | | | | | | | | x86/urgent
| | * | x86: remove duplicated #include'sHuang Weiyi2009-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed duplicated #include's in: arch/x86/kernel/mpparse.c arch/x86/kernel/nmi.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_table mpc_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->mpc_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'mpc' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_oemtable oem_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->oem_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'oem' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_bus mpc_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->mpc_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'mpc' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_cpu mpc_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->mpc_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'mpc' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_intsrc mpc_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->mpc_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'mpc' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_lintsrc mpc_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->mpc_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'mpc' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: rename all fields of mpc_iopic mpc_X to XJaswinder Singh Rajput2009-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, solve 80 columns wrap problems It would be cleaner to rename all the mpc->mpc_X fields to mpc->X - that alone would give 4 characters per usage site. (we already know that it's an 'mpc' entity - no need to duplicate that in the field too) Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: irqinit_64.c init_ISA_irqs should be staticJaswinder Singh Rajput2009-01-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Jaswinder Singh <jaswinder@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: setup_percpu.c fix style problemsJaswinder Singh Rajput2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup Fix: WARNING: Use #include <linux/smp.h> instead of <asm/smp.h> WARNING: Use #include <linux/percpu.h> instead of <asm/percpu.h> WARNING: Use #include <linux/topology.h> instead of <asm/topology.h> WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable ERROR: spaces required around that '?' (ctx:VxW) ERROR: spaces required around that ':' (ctx:VxV) total: 2 errors, 4 warnings Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * | x86: irqinit_64.c fix style problemsJaswinder Singh Rajput2009-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, fix style problems Fix: WARNING: Use #include <linux/acpi.h> instead of <asm/acpi.h> WARNING: Use #include <linux/io.h> instead of <asm/io.h> WARNING: Use #include <linux/delay.h> instead of <asm/delay.h> total: 0 errors, 3 warnings Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>