Cliff Wickman b0051893fd x86, kdump: Change copy_oldmem_page() to use cached addressing ...

commit 37a2f9f30a upstream.

The copy of /proc/vmcore to a user buffer proceeds much faster
if the kernel addresses memory as cached.

With this patch we have seen an increase in transfer rate from
less than 15MB/s to 80-460MB/s, depending on size of the
transfer. This makes a big difference in time needed to save a
system dump.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: kexec@lists.infradead.org
LKML-Reference: <E1OtMLz-0001yp-Ia@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2010-11-22 10:47:33 -08:00

..

acpi

ACPI: Unconditionally set SCI_EN on resume

2010-08-02 10:21:25 -07:00

apic

x86, intr-remap: Set redirection hint in the IRTE

2010-11-22 10:47:32 -08:00

cpu

x86, mtrr: Assume SYS_CFG[Tom2ForceMemTypeWB] exists on all future AMD CPUs

2010-11-22 10:47:32 -08:00

.gitignore

…

alternative.c

Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-14 07:57:32 -07:00

amd_iommu_init.c

x86/amd-iommu: Work around S3 BIOS bug

2010-10-28 21:43:57 -07:00

amd_iommu.c

x86/amd-iommu: Fix rounding-bug in __unmap_single

2010-10-28 21:43:56 -07:00

aperture_64.c

x86/gart: Disable GART explicitly before initialization

2010-04-26 07:41:38 -07:00

apm_32.c

Merge commit 'origin/x86/urgent' into x86/asm

2009-08-25 15:40:29 -07:00

asm-offsets_32.c

lguest: optimize by coding restore_flags and irq_enable in assembler.

2009-06-12 22:27:03 +09:30

asm-offsets_64.c

tracing: Define NR_syscalls for x86_64

2009-08-26 21:29:58 +02:00

asm-offsets.c

…

audit_64.c

…

bios_uv.c

x86, UV: system table in bios accessed after unmap

2009-04-03 19:25:57 +02:00

bootflag.c

…

check.c

x86: fix 64k corruption-check

2009-03-15 07:03:15 +01:00

cpuid.c

x86, msr/cpuid: Pass the number of minors when unregistering MSR and CPUID drivers.

2010-01-28 15:03:02 -08:00

crash_dump_32.c

x86: crash_dump: Fix non-pae kdump kernel memory accesses

2009-10-26 12:38:59 +01:00

crash_dump_64.c

x86, kdump: Change copy_oldmem_page() to use cached addressing

2010-11-22 10:47:33 -08:00

crash.c

Revert "x86: disable IOMMUs on kernel crash"

2010-04-26 07:41:27 -07:00

doublefault_32.c

x86: Use get_desc_base()

2009-07-19 18:27:51 +02:00

ds_selftest.c

x86, ds: fix buffer alignment in debug store selftest

2009-04-24 10:18:51 +02:00

ds_selftest.h

x86, bts: cleanups

2009-03-13 11:57:22 +01:00

ds.c

x86: ds.c fix invalid assignment

2009-06-20 17:53:13 +02:00

dumpstack_32.c

headers: utsname.h redux

2009-09-23 18:13:10 -07:00

dumpstack_64.c

headers: utsname.h redux

2009-09-23 18:13:10 -07:00

dumpstack.c

x86: Remove duplicated #include

2009-07-11 10:17:08 +02:00

dumpstack.h

x86: avoid multiple declaration of kstack_depth_to_print

2009-04-14 11:45:33 +02:00

e820.c

pci: increase alignment to make more space for hidden code

2009-10-11 14:43:36 -07:00

early_printk.c

x86: earlyprintk: Fix regression to handle serial,ttySn as 1 arg

2009-10-01 10:34:16 +02:00

early-quirks.c

x86 early quirks: eliminate unused function

2009-04-08 14:16:32 +02:00

efi_32.c

…

efi_64.c

x86: Make 64-bit efi_ioremap use ioremap on MMIO regions

2009-08-03 13:34:25 -07:00

efi_stub_32.S

Merge branch 'x86/asm' into x86/mm

2009-02-25 08:27:46 +01:00

efi_stub_64.S

x86: efi_stub_32,64 - add missing ENDPROCs

2009-02-24 18:08:40 +01:00

efi.c

x86: Make EFI RTC function depend on 32bit again

2009-10-27 12:35:48 +01:00

entry_32.S

Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-06-20 10:56:46 -07:00

entry_64.S

x86: ptrace: sysret path should reach syscall_trace_leave

2009-09-22 20:33:42 -07:00

ftrace.c

tracing: Convert event tracing code to use NR_syscalls

2009-08-26 21:30:02 +02:00

geode_32.c

…

head32.c

x86: Add Moorestown early detection

2009-08-31 11:09:40 +02:00

head64.c

x86: Add early platform detection

2009-08-31 11:09:40 +02:00

head_32.S

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-26 10:13:35 -07:00

head_64.S

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-26 10:13:35 -07:00

head.c

…

hpet.c

x86, hpet: Fix bogus error check in hpet_assign_irq()

2010-10-28 21:43:59 -07:00

i386_ksyms_32.c

x86: Don't generate cmpxchg8b_emu if CONFIG_X86_CMPXCHG64=y

2009-10-01 08:42:24 +02:00

i387.c

x86, math-emu: fix init_fpu for task != current

2009-03-04 20:33:16 +01:00

i8237.c

i8327: fix outb() parameter order

2009-02-10 13:13:23 +01:00

i8253.c

x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown

2009-08-21 21:13:37 +02:00

i8259.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

init_task.c

Use new __init_task_data macro in arch init_task.c files.

2009-09-21 06:27:08 +02:00

io_delay.c

x86: io_delay.c cleanup

2009-03-21 16:57:04 +05:30

ioport.c

x86-32: use non-lazy io bitmap context switching

2009-03-02 12:07:48 +01:00

irq_32.c

x86: Use printk_once()

2009-08-09 22:28:34 +02:00

irq_64.c

x86: unify do_IRQ()

2009-02-09 12:16:05 +01:00

irq.c

Merge branch 'linus' into x86/urgent

2009-10-15 08:07:30 +02:00

irqinit.c

perf: Do the big rename: Performance Counters -> Performance Events

2009-09-21 14:28:04 +02:00

k8.c

x86, k8 nb: Fix boot crash: enable k8_northbridges unconditionally on AMD systems

2010-05-12 14:57:06 -07:00

kdebugfs.c

x86: kdebugfs.c cleanup

2009-03-21 16:55:45 +05:30

kgdb.c

Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-06-10 15:49:10 -07:00

kprobes.c

Merge branch 'tracing/core-v2' into tracing-for-linus

2009-04-02 00:49:02 +02:00

kvm.c

KVM guest: do not batch pte updates from interrupt context

2009-09-10 18:10:50 +03:00

kvmclock.c

Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-18 14:05:47 -07:00

ldt.c

cpumask: use mm_cpumask() wrapper: x86

2009-09-24 09:34:52 +09:30

machine_kexec_32.c

x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP

2009-05-07 22:01:05 -07:00

machine_kexec_64.c

x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP

2009-05-07 22:01:05 -07:00

Makefile

tracing/x86: Don't use mcount in kvmclock.c

2010-10-28 21:43:57 -07:00

mca_32.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

mfgpt_32.c

x86: geode: Mark mfgpt irq IRQF_TIMER to prevent resume failure

2009-07-24 08:42:52 +02:00

microcode_amd.c

x86, amd-ucode: Check UCODE_MAGIC before loading the container file

2009-11-10 05:46:09 +01:00

microcode_core.c

mm: replace various uses of num_physpages by totalram_pages

2009-09-22 07:17:38 -07:00

microcode_intel.c

x86: microcode: use smp_call_function_single instead of set_cpus_allowed, cleanup of synchronization logic

2009-05-12 10:36:44 +02:00

mmconf-fam10h_64.c

x86: move various CPU initialization objects into .cpuinit.rodata

2009-03-12 13:13:07 +01:00

module.c

module: cleanup FIXME comments about trimming exception table entries.

2009-06-12 21:47:05 +09:30

mpparse.c

x86, apic: Don't use logical-flat mode when CPU hotplug may exceed 8 CPUs

2010-04-01 15:58:14 -07:00

mrst.c

x86: Add Moorestown early detection

2009-08-31 11:09:40 +02:00

msr.c

x86, msr/cpuid: Pass the number of minors when unregistering MSR and CPUID drivers.

2010-01-28 15:03:02 -08:00

olpc.c

x86, olpc: Don't retry EC commands forever

2010-11-22 10:47:32 -08:00

paravirt_patch_32.c

x86/pvops: add a paravirt_ident functions to allow special patching

2009-01-30 14:51:44 -08:00

paravirt_patch_64.c

x86/pvops: add a paravirt_ident functions to allow special patching

2009-01-30 14:51:44 -08:00

paravirt-spinlocks.c

x86: remove byte locks

2009-01-20 17:14:28 +01:00

paravirt.c

Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-18 14:05:47 -07:00

pci-calgary_64.c

x86, Calgary: Limit the max PHB number to 256

2010-08-02 10:20:51 -07:00

pci-dma.c

x86: Fix iommu=nodac parameter handling

2009-12-18 14:03:19 -08:00

pci-gart_64.c

x86, k8 nb: Fix boot crash: enable k8_northbridges unconditionally on AMD systems

2010-05-12 14:57:06 -07:00

pci-nommu.c

dma-ops: Remove flush_write_buffers() in dma-mapping-common.h

2009-08-10 09:34:57 +02:00

pci-swiotlb.c

Merge git://git.infradead.org/iommu-2.6

2009-09-23 10:06:10 -07:00

pcspeaker.c

…

pmtimer_64.c

…

probe_roms_32.c

x86: move mach-default/*.h files to asm/

2009-01-29 14:16:51 +01:00

process_32.c

Merge branch 'x86-percpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-14 08:01:28 -07:00

process_64.c

x86-64: Clear a 64-bit FS/GS base on fork if selector is nonzero

2010-05-12 14:57:06 -07:00

process.c

x86, amd: Check X86_FEATURE_OSVW bit before accessing OSVW MSRs

2010-05-26 14:29:18 -07:00

ptrace.c

x86/ptrace: make genregs[32]_get/set more robust

2010-01-06 15:04:35 -08:00

pvclock.c

x86, paravirt: Add a global synchronization point for pvclock

2010-07-05 11:11:17 -07:00

quirks.c

x86: Disable HPET MSI on ATI SB700/SB800

2010-02-09 04:50:51 -08:00

reboot_fixups_32.c

…

reboot.c

x86, kexec: Make sure to stop all CPUs before exiting the kernel

2010-11-22 10:47:31 -08:00

relocate_kernel_32.S

x86, kexec: fix kexec x86 coding style

2009-03-10 18:13:25 -07:00

relocate_kernel_64.S

x86, kexec: x86_64: add kexec jump support for x86_64

2009-03-10 18:13:25 -07:00

rtc.c

Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-18 14:05:47 -07:00

scx200_32.c

…

setup_percpu.c

x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA

2009-08-14 15:00:52 +09:00

setup.c

x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012

2010-07-05 11:10:58 -07:00

sfi.c

SFI: remove unneeded includes

2009-09-15 15:08:40 -04:00

signal.c

Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-17 21:07:08 -07:00

smp.c

x86, kexec: Make sure to stop all CPUs before exiting the kernel

2010-11-22 10:47:31 -08:00

smpboot.c

x86, hotplug: Serialize CPU hotplug to avoid bringup concurrency issues

2010-08-26 16:41:38 -07:00

stacktrace.c

x86: add save_stack_trace_bp() for tracing from a specific stack frame

2009-06-12 23:01:05 +02:00

step.c

x86: Use get_desc_base()

2009-07-19 18:27:51 +02:00

sys_i386_32.c

untangle the do_mremap() mess

2010-01-18 10:19:11 -08:00

sys_x86_64.c

untangle the do_mremap() mess

2010-01-18 10:19:11 -08:00

syscall_64.c

…

syscall_table_32.S

untangle the do_mremap() mess

2010-01-18 10:19:11 -08:00

tboot.c

KVM: VMX: enable VMXON check with SMX enabled (Intel TXT)

2010-07-05 11:11:18 -07:00

tce_64.c

…

test_nx.c

…

test_rodata.c

…

time.c

x86: fix kernel panic on 32 bits when profiling

2009-10-12 11:53:51 -07:00

tlb_uv.c

x86: SGI UV: Fix BAU initialization

2009-12-18 14:03:44 -08:00

tls.c

…

tls.h

…

topology.c

x86: topology.c cleanup

2009-03-21 16:55:24 +05:30

trampoline_32.S

x86: cpuinit-annotate SMP boot trampolines properly

2009-09-20 20:23:37 +02:00

trampoline_64.S

x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop

2009-10-12 18:06:48 +02:00

trampoline.c

x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop

2009-10-12 18:06:48 +02:00

traps.c

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-09-26 10:13:35 -07:00

tsc_sync.c

x86: Reduce verbosity of "TSC is reliable" message

2009-09-24 11:35:19 +02:00

tsc.c

x86, tsc: Fix a preemption leak in restore_sched_clock_state()

2010-09-20 13:17:56 -07:00

uv_irq.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

uv_sysfs.c

x86: prevent /sys/firmware/sgi_uv from being created on non-uv systems

2009-04-08 14:58:10 +02:00

uv_time.c

uv_time: add parameter to uv_read_rtc()

2009-04-22 17:41:25 +02:00

verify_cpu_64.S

…

visws_quirks.c

x86: Add timer_init to x86_init_ops

2009-08-31 09:35:46 +02:00

vm86_32.c

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-06-10 16:15:14 -07:00

vmi_32.c

x86, vmi: Mark VMI deprecated and schedule it for removal

2009-10-08 22:27:55 +02:00

vmiclock_32.c

x86: Move tsc_calibration to x86_init_ops

2009-08-31 09:35:47 +02:00

vmlinux.lds.S

x86: Document linker script ASSERT() quirk

2009-10-16 07:18:46 +02:00

vsmp_64.c

Revert "x86: don't compile vsmp_64 for 32bit"

2009-03-25 21:34:28 +01:00

vsyscall_64.c

timekeeping: Fix clock_gettime vsyscall time warp

2010-08-13 13:20:13 -07:00

x86_init.c

x86: Move get/set_wallclock to x86_platform_ops

2009-09-16 14:34:50 +02:00

x8664_ksyms_64.c

x86: convert pda ops to wrappers around x86 percpu accessors

2009-01-16 14:20:22 +01:00

xsave.c

x86-64: fix FPU corruption with signals and preemption

2009-04-20 14:33:00 -07:00