Boris Ostrovsky 511ba86e1d x86, mm: Patch out arch_flush_lazy_mmu_mode() when running on bare metal ... Invoking arch_flush_lazy_mmu_mode() results in calls to preempt_enable()/disable() which may have performance impact. Since lazy MMU is not used on bare metal we can patch away arch_flush_lazy_mmu_mode() so that it is never called in such environment. [ hpa: the previous patch "Fix vmalloc_fault oops during lazy MMU updates" may cause a minor performance regression on bare metal. This patch resolves that performance regression. It is somewhat unclear to me if this is a good -stable candidate. ] Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: http://lkml.kernel.org/r/1364045796-10720-2-git-send-email-konrad.wilk@oracle.com Tested-by: Josh Boyer <jwboyer@redhat.com> Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org> SEE NOTE ABOVE		2013-04-10 11:25:10 -07:00
..
acpi	cpu_hotplug: clear apicid to node when the cpu is hotremoved	2013-02-23 17:50:13 -08:00
apic	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-26 19:45:29 -08:00
cpu	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-03-21 08:29:11 -07:00
kprobes	kprobes/x86: Check Interrupt Flag modifier when registering probe	2013-03-18 10:21:23 +01:00
.gitignore
alternative.c	Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-10-01 10:47:45 -07:00
amd_gart_64.c	x86, mm: use pfn_range_is_mapped() with gart	2012-11-17 11:59:10 -08:00
amd_nb.c	Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-07-22 16:07:45 -07:00
apb_timer.c	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-19 20:11:07 -08:00
aperture_64.c	x86/gart: Fix kmemleak warning	2012-06-06 11:58:38 +02:00
apm_32.c	ACPI and power management updates for 3.9-rc1	2013-02-20 11:26:56 -08:00
asm-offsets_32.c
asm-offsets_64.c
asm-offsets.c	x86, um/x86: switch to generic sys_execve and kernel_execve	2012-09-30 22:53:32 -04:00
audit_64.c
bootflag.c
check.c
cpuid.c	new helper: file_inode(file)	2013-02-22 23:31:31 -05:00
crash_dump_32.c
crash_dump_64.c
crash.c	x86/kexec: crash_vmclear_local_vmcss needs __rcu	2012-12-11 19:55:23 -02:00
devicetree.c	x86: dt: Use linear irq domain for ioapic(s)	2012-08-21 22:16:57 +02:00
doublefault_32.c
dumpstack_32.c	x86: Move call to print_modules() out of show_regs()	2012-06-20 14:33:48 +02:00
dumpstack_64.c	x86: Move call to print_modules() out of show_regs()	2012-06-20 14:33:48 +02:00
dumpstack.c	taint: add explicit flag to show whether lock dep is still OK.	2013-01-21 17:17:57 +10:30
e820.c	x86, mm: Let "memmap=" take more entries one time	2012-11-17 11:59:51 -08:00
early_printk.c	Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()"	2012-07-22 15:47:52 +02:00
early-quirks.c
entry_32.S	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-02-23 18:50:11 -08:00
entry_64.S	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-02-23 18:50:11 -08:00
ftrace.c	x86/ftrace: Use __pa_symbol instead of __pa on C visible symbols	2012-11-16 16:42:09 -08:00
head32.c	x86: Merge early kernel reserve for 32bit and 64bit	2013-01-29 19:32:58 -08:00
head64.c	Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-22 19:22:52 -08:00
head_32.S	Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-22 19:22:52 -08:00
head_64.S	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-27 16:16:39 -08:00
head.c	x86: Make sure we can boot in the case the BDA contains pure garbage	2013-02-27 13:38:57 -08:00
hpet.c	x86, hpet: Introduce x86_msi_ops.setup_hpet_msi	2013-01-28 10:48:30 +01:00
hw_breakpoint.c
i386_ksyms_32.c	x86-32: Add support for 64bit get_user()	2013-02-07 15:07:28 -08:00
i387.c	x86/i387.c: Initialize thread xstate only on CPU0 only once	2012-11-14 15:28:11 -08:00
i8237.c
i8253.c
i8259.c	x86/irq/i8259: Fix incorrect comment	2012-08-22 09:34:24 +02:00
io_delay.c
ioport.c	x86: get rid of pt_regs argument of iopl(2)	2013-02-03 18:16:24 -05:00
irq_32.c
irq_64.c
irq_work.c
irq.c	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-10-01 11:13:33 -07:00
irqinit.c	x86, 386 removal: Remove support for IRQ 13 FPU error reporting	2012-12-17 11:42:40 -08:00
jump_label.c
kdebugfs.c	arch/x86/kernel/kdebugfs.c: Ensure a consistent return value in error case	2012-07-26 15:07:20 +02:00
kgdb.c	kgdb,x86: fix warning about unused variable	2012-10-12 06:37:34 -05:00
kvm.c	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-21 18:06:55 -08:00
kvmclock.c	Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2013-02-24 13:07:18 -08:00
ldt.c
machine_kexec_32.c
machine_kexec_64.c	x86, kexec, 64bit: Only set ident mapping for ram.	2013-01-29 15:26:35 -08:00
Makefile	Merge branch 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-22 19:22:52 -08:00
microcode_amd.c	x86, microcode, AMD: Add support for family 16h processors	2012-11-20 22:23:28 -08:00
microcode_core_early.c	x86/microcode_core_early.c: Define interfaces for early loading ucode	2013-01-31 13:19:12 -08:00
microcode_core.c	x86/microcode_intel.h: Define functions and macros for early loading ucode	2013-01-31 13:18:50 -08:00
microcode_intel_early.c	x86, microcode_intel_early: Mark apply_microcode_early() as cpuinit	2013-03-21 17:32:36 -07:00
microcode_intel_lib.c	x86/microcode_intel_lib.c: Early update ucode on Intel's CPU	2013-01-31 13:19:14 -08:00
microcode_intel.c	x86/microcode_intel.h: Define functions and macros for early loading ucode	2013-01-31 13:18:50 -08:00
mmconf-fam10h_64.c
module.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-07-24 13:34:56 -07:00
mpparse.c	Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-29 20:14:53 -07:00
msr.c	more file_inode() open-coded instances	2013-02-27 16:59:05 -05:00
nmi_selftest.c	x86/nmi: Clean up register_nmi_handler() usage	2012-06-20 14:23:17 +02:00
nmi.c	x86/nmi: export local_touch_nmi() symbol for modules	2013-01-17 22:25:57 +08:00
paravirt_patch_32.c
paravirt_patch_64.c
paravirt-spinlocks.c
paravirt.c	x86, mm: Patch out arch_flush_lazy_mmu_mode() when running on bare metal	2013-04-10 11:25:10 -07:00
pci-calgary_64.c	x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>	2012-06-06 09:17:22 +02:00
pci-dma.c	x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES	2013-01-24 17:34:18 +01:00
pci-iommu_table.c
pci-nommu.c
pci-swiotlb.c
pcspeaker.c
perf_regs.c	perf: Fix off by one test in perf_reg_value()	2012-09-19 17:08:40 +02:00
probe_roms.c	x86/pci/probe_roms: Add missing __iomem annotation to pci_map_biosrom()	2012-09-05 10:52:25 +02:00
process_32.c	flagday: don't pass regs to copy_thread()	2012-11-28 23:43:42 -05:00
process_64.c	x86/process: Change %8s to %s for pr_warn() in release_thread()	2013-01-24 18:11:03 +01:00
process.c	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2013-02-18 22:34:11 +01:00
ptrace.c	x86: ptrace.c only needs export.h and not the full module.h	2013-02-14 12:56:12 -08:00
pvclock.c	x86/kvm: Fix pvclock vsyscall fixmap	2013-02-28 08:50:11 +02:00
quirks.c	X86: drivers: remove __dev* attributes.	2013-01-03 15:57:04 -08:00
reboot_fixups_32.c
reboot.c	efi: Make 'efi_enabled' a function to query EFI facilities	2013-01-30 11:51:59 -08:00
relocate_kernel_32.S
relocate_kernel_64.S
resource.c
rtc.c	x86/time/rtc: Don't print extended CMOS year when reading RTC	2013-01-24 14:56:35 +01:00
setup_percpu.c	x86: Add read_mostly declaration/definition to variables from smp.h	2012-06-14 12:42:11 +02:00
setup.c	x86: Fix 32-bit *_cpu_data initializers	2013-03-06 20:15:50 -08:00
signal.c	x86: convert to ksignal	2013-02-14 09:21:17 -05:00
smp.c
smpboot.c	x86, smpboot: Remove unused variable	2013-03-05 15:26:45 -08:00
stacktrace.c
step.c	ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL	2013-01-22 10:08:00 -08:00
sys_x86_64.c	x86: Fix a typo	2013-01-24 16:22:10 +01:00
syscall_32.c
syscall_64.c
tboot.c	Revert "x86-64/efi: Use EFI to deal with platform wall clock (again)"	2012-12-15 15:20:41 -08:00
tce_64.c
test_nx.c
test_rodata.c
time.c
tls.c
tls.h
topology.c	x86, topology: Debug CPU0 hotplug	2012-11-14 15:28:11 -08:00
trace_clock.c	tracing,x86: Add a TSC trace_clock	2012-11-13 15:48:27 -05:00
traps.c	x86, 64bit: Use a #PF handler to materialize early mappings on demand	2013-01-29 15:20:06 -08:00
tsc_sync.c
tsc.c	Merge branch 'fortglx/3.9/time' of git://git.linaro.org/people/jstultz/linux into timers/core	2013-02-04 11:03:03 +01:00
uprobes.c	uprobes: Change handle_swbp() to expose bp_vaddr to handler_chain()	2013-02-08 17:47:11 +01:00
verify_cpu.S
vm86_32.c	x86: get rid of pt_regs argument in vm86/vm86old	2013-02-03 18:16:24 -05:00
vmlinux.lds.S
vsmp_64.c	x86/apic/x2apic: Limit the vector reservation to the user specified mask	2012-07-06 11:00:22 +02:00
vsyscall_64.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2012-12-16 15:40:50 -08:00
vsyscall_emu_64.S
vsyscall_trace.h
x86_init.c	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-21 18:06:55 -08:00
x8664_ksyms_64.c	x86: Improve __phys_addr performance by making use of carry flags and inlining	2012-11-16 16:42:08 -08:00
xsave.c	x86, smap: Do not abuse the [f][x]rstor_checking() functions for user space	2012-09-25 15:42:18 -07:00