Ingo Molnar 95108fa34a x86: usercopy: check for total size when deciding non-temporal cutoff ... Impact: make more types of copies non-temporal This change makes the following simple fix: 30d697f: x86: fix performance regression in write() syscall A bit more sophisticated: we check the 'total' number of bytes written to decide whether to copy in a cached or a non-temporal way. This will for example cause the tail (modulo 4096 bytes) chunk of a large write() to be non-temporal too - not just the page-sized chunks. Cc: Salman Qazi <sqazi@google.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2009-02-25 10:20:05 +01:00
..
mach-voyager
uv	x86: UV: fix header struct usage	2009-02-11 17:17:29 -08:00
visws
xen	x86, xen: short-circuit tests for dom0	2009-02-16 08:55:50 +01:00
a.out-core.h	x86: add %gs accessors for x86_32	2009-02-10 00:41:58 +01:00
a.out.h
acpi.h	x86: use early_ioremap in __acpi_map_table	2009-02-09 13:33:51 +01:00
agp.h
alternative-asm.h
alternative.h
amd_iommu.h
amd_iommu_types.h	AMD IOMMU: add init code for statistic collection	2009-01-03 14:11:58 +01:00
apic.h	x86, apic: rename 'genapic' to 'apic'	2009-02-17 17:53:57 +01:00
apicdef.h	cpumask, irq: non-x86 build failures	2009-01-11 19:13:45 +01:00
apicnum.h	irq: initialize nr_irqs based on nr_cpu_ids	2009-01-11 19:13:38 +01:00
apm.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
arch_hooks.h
asm.h
atomic.h
atomic_32.h	atomic_t: unify all arch definitions	2009-01-06 15:59:10 -08:00
atomic_64.h	atomic_t: unify all arch definitions	2009-01-06 15:59:10 -08:00
auxvec.h
bios_ebda.h
bitops.h	x86, generic: mark complex bitops.h inlines as __always_inline	2009-01-13 18:56:30 +01:00
boot.h
bootparam.h
bug.h
bugs.h
byteorder.h	byteorder: make swab.h include asm/swab.h like a regular header	2009-01-14 19:56:50 -08:00
cache.h
cacheflush.h
calgary.h
calling.h	x86: document 64-bit and 32-bit function call convention ABI	2009-02-03 19:48:18 +01:00
checksum.h
checksum_32.h
checksum_64.h
cmpxchg.h
cmpxchg_32.h
cmpxchg_64.h
compat.h
cpu.h	x86: generalize boot_cpu_id	2009-01-29 14:17:01 +01:00
cpufeature.h	x86: add clflush before monitor for Intel 7400 series	2009-02-09 11:15:15 +01:00
cpumask.h	x86: move setup_cpu_local_masks()	2009-01-27 12:56:47 +09:00
cputime.h
current.h	x86-64: Move current task from PDA to per-cpu and consolidate with 32-bit.	2009-01-19 00:38:58 +09:00
debugreg.h
delay.h
desc.h
desc_defs.h
device.h
div64.h
dma-mapping.h	Documentation: move DMA-mapping.txt to Doc/PCI/	2009-01-29 18:19:29 -08:00
dma.h
dmi.h
do_timer.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
ds.h
dwarf2.h
e820.h	headers_check fix: x86, e820.h	2009-01-31 00:16:22 +05:30
edac.h
efi.h
elf.h	x86: make lazy %gs optional on x86_32	2009-02-10 00:42:00 +01:00
emergency-restart.h
entry_arch.h	x86: replace CONFIG_X86_SMP with CONFIG_SMP	2009-01-29 14:17:00 +01:00
errno.h
fb.h
fcntl.h
fixmap.h
fixmap_32.h	x86: use early_ioremap in __acpi_map_table	2009-02-09 13:33:51 +01:00
fixmap_64.h	x86: use early_ioremap in __acpi_map_table	2009-02-09 13:33:51 +01:00
floppy.h
frame.h
ftrace.h
futex.h
gart.h
genapic.h	x86, apic: merge genapic.h into apic.h	2009-02-17 17:52:43 +01:00
geode.h
gpio.h
hardirq.h	x86: make irq_cpustat_t fields conditional	2009-01-23 11:03:32 +09:00
highmem.h
hpet.h
hugetlb.h
hw_irq.h	xen: expose enable_IO_APIC for 32-bit	2009-02-09 14:04:56 -08:00
hypertransport.h
hypervisor.h
i387.h
i8253.h
i8259.h
ia32.h
ia32_unistd.h
idle.h
intel_arch_perfmon.h
io.h	x86: truncate ISA addresses to unsigned int	2009-02-17 13:01:51 -08:00
io_32.h	Merge branches 'x86/acpi', 'x86/asm', 'x86/cpudetect', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/header-fixes', 'x86/headers' and 'x86/minor-fixes' into x86/core	2009-02-13 09:46:36 +01:00
io_64.h	Merge branches 'x86/acpi', 'x86/asm', 'x86/cpudetect', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/header-fixes', 'x86/headers' and 'x86/minor-fixes' into x86/core	2009-02-13 09:46:36 +01:00
io_apic.h	x86: unstatic ioapic entry funcs	2009-02-09 14:04:31 -08:00
ioctl.h
ioctls.h
iomap.h
iommu.h
ipcbuf.h
ipi.h	x86, apic: remove duplicate asm/apic.h inclusions	2009-02-17 17:52:44 +01:00
irq.h	x86: unify do_IRQ()	2009-02-09 12:16:05 +01:00
irq_regs.h	x86: merge irq_regs.h	2009-01-21 17:26:06 +09:00
irq_remapping.h
irq_vectors.h	x86: invalid_vm86_irq -- use predefined macros	2009-02-24 18:08:39 +01:00
irqflags.h
ist.h
k8.h
Kbuild	byteorder: make swab.h include asm/swab.h like a regular header	2009-01-14 19:56:50 -08:00
kdebug.h
kexec.h	x86: kexec: Use one page table in x86_64 machine_kexec	2009-02-03 18:29:18 -08:00
kgdb.h
kmap_types.h
kprobes.h
kvm.h	KVM: Avoid using CONFIG_ in userspace visible headers	2009-02-15 02:47:35 +02:00
kvm_host.h	KVM: change KVM to use IOMMU API	2009-01-03 14:11:07 +01:00
kvm_para.h
kvm_x86_emulate.h	KVM: x86 emulator: add Src2 decode set	2008-12-31 16:55:42 +02:00
ldt.h
lguest.h	x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids	2009-01-03 19:00:55 +01:00
lguest_hcall.h
linkage.h	x86: linkage - get rid of _X86 macros	2009-02-19 17:12:59 +01:00
local.h
mach_timer.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
mach_traps.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
math_emu.h	x86: fix math_emu register frame access	2009-02-10 00:39:14 +01:00
mc146818rtc.h
mca.h
mca_dma.h
mce.h	headers_check fix: x86, mce.h	2009-01-31 00:17:13 +05:30
microcode.h
mman.h
mmconfig.h
mmu.h
mmu_context.h	x86: make lazy %gs optional on x86_32	2009-02-10 00:42:00 +01:00
mmx.h
mmzone.h
mmzone_32.h	mm: clean up for early_pfn_to_nid()	2009-02-18 15:37:55 -08:00
mmzone_64.h	mm: clean up for early_pfn_to_nid()	2009-02-18 15:37:55 -08:00
module.h
mpspec.h	x86, numaq_32: clean up, misc	2009-02-17 17:53:54 +01:00
mpspec_def.h	x86: rename all fields of mpf_intel mpf_X to X	2009-01-08 15:37:37 +01:00
msgbuf.h
msidef.h
msr-index.h	x86: add MSR_IA32_MISC_ENABLE bits to <asm/msr-index.h>	2009-01-21 15:13:53 -08:00
msr.h
mtrr.h	headers_check fix: x86, mtrr.h	2009-01-31 00:17:39 +05:30
mutex.h
mutex_32.h
mutex_64.h
nmi.h
nops.h
numa.h
numa_32.h
numa_64.h
numaq.h	x86, numaq: cleanups	2009-02-05 22:30:14 +01:00
olpc.h
page.h	x86 headers: include linux/types.h	2009-02-13 13:23:02 +01:00
page_32.h	x86 headers: protect page_32.h via __ASSEMBLY__	2009-02-13 13:36:47 +01:00
page_32_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
page_64.h	x86: create _types.h counterparts for page*.h	2009-02-11 14:54:09 -08:00
page_64_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
page_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
param.h
paravirt.h	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-02-17 14:27:39 -08:00
parport.h
pat.h	x86: handle PAT more like other CPU features	2009-01-23 18:07:45 -08:00
pci-direct.h
pci-functions.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
pci.h
pci_32.h
pci_64.h
pci_x86.h
percpu.h	x86: use linker to offset symbols by __per_cpu_load	2009-02-09 10:30:30 +01:00
pgalloc.h	x86, mm: fix pte_free()	2009-01-23 18:42:06 +01:00
pgtable-2level.h	x86: unify pte_none	2009-02-06 12:26:08 -08:00
pgtable-2level_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
pgtable-3level.h	x86: unify pud_none	2009-02-06 12:31:51 -08:00
pgtable-3level_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
pgtable.h	x86 headers: remove duplicate pud_large() definition	2009-02-13 13:15:55 +01:00
pgtable_32.h	x86: Split pgtable_32.h into pgtable_32.h and pgtable_32_types.h	2009-02-11 14:54:09 -08:00
pgtable_32_types.h	x86: Split pgtable_32.h into pgtable_32.h and pgtable_32_types.h	2009-02-11 14:54:09 -08:00
pgtable_64.h	Merge branches 'x86/acpi', 'x86/asm', 'x86/cpudetect', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/header-fixes', 'x86/headers' and 'x86/minor-fixes' into x86/core	2009-02-13 09:46:36 +01:00
pgtable_64_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
pgtable_types.h	x86: move more pagetable-related definitions into pgtable*.h	2009-02-13 11:35:01 -08:00
poll.h
posix_types.h
posix_types_32.h
posix_types_64.h
prctl.h	headers_check fix: x86, prctl.h	2009-02-02 23:27:09 +05:30
processor-cyrix.h
processor-flags.h
processor.h	x86, mm: rename TASK_SIZE64 => TASK_SIZE_MAX	2009-02-21 00:09:44 +01:00
proto.h	x86/Voyager: remove X86_BIOS_REBOOT Kconfig quirk	2009-01-29 14:17:03 +01:00
ptrace-abi.h	headers_check fix: x86, ptrace-abi.h	2009-01-31 00:18:03 +05:30
ptrace.h	x86: make lazy %gs optional on x86_32	2009-02-10 00:42:00 +01:00
pvclock-abi.h
pvclock.h
rdc321x_defs.h	x86, rdc321x: remove/move leftover files	2009-01-18 19:39:18 +01:00
reboot.h
reboot_fixups.h
required-features.h
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h
scatterlist.h
seccomp.h
seccomp_32.h
seccomp_64.h
sections.h
segment.h	x86: implement x86_32 stack protector	2009-02-10 00:42:01 +01:00
sembuf.h
serial.h
setup.h	x86, apic: rename 'genapic' to 'apic'	2009-02-17 17:53:57 +01:00
setup_arch.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
shmbuf.h
shmparam.h
sigcontext.h	headers_check fix: x86, sigcontext.h	2009-01-31 00:18:30 +05:30
sigcontext32.h	headers_check fix: x86, sigcontext32.h	2009-01-31 00:18:58 +05:30
sigframe.h
siginfo.h
signal.h
smp.h	x86: remove mach_apic.h	2009-01-29 14:16:42 +01:00
smpboot_hooks.h	x86: move mach-default/*.h files to asm/	2009-01-29 14:16:51 +01:00
socket.h
sockios.h
sparsemem.h
spinlock.h	Merge branch 'linus' into x86/apic	2009-02-13 09:44:22 +01:00
spinlock_types.h
srat.h
stackprotector.h	x86: fix x86_32 stack protector bugs	2009-02-11 11:33:49 +01:00
stacktrace.h
stat.h
statfs.h
string.h
string_32.h
string_64.h
suspend.h
suspend_32.h
suspend_64.h
svm.h	KVM: SVM: move svm.h to include/asm	2008-12-31 16:52:28 +02:00
swab.h	headers_check fix: x86, swab.h	2009-01-31 00:19:32 +05:30
swiotlb.h
sync_bitops.h
sys_ia32.h
syscall.h
syscalls.h	x86: syscalls.h: remove asmlinkage from declaration of sys_rt_sigreturn()	2009-02-19 12:18:54 +01:00
system.h	Merge branch 'core/percpu' into x86/core	2009-02-13 09:45:09 +01:00
system_64.h
tce.h
termbits.h
termios.h
therm_throt.h
thread_info.h	Merge branch 'x86/uaccess' into core/percpu	2009-02-10 00:40:48 +01:00
time.h
timer.h
timex.h	x86: use standard PIT frequency	2009-01-25 16:57:47 +01:00
tlb.h
tlbflush.h	x86-64: Move TLB state from PDA to per-cpu and consolidate with 32-bit.	2009-01-19 00:38:57 +09:00
topology.h	x86: move 64-bit NUMA code	2009-01-27 12:56:47 +09:00
trampoline.h	x86: load pointer to pda into %gs while brining up a CPU	2009-01-16 14:19:26 +01:00
traps.h	x86: use pt_regs pointer in do_device_not_available()	2009-02-11 12:40:44 +01:00
tsc.h
types.h
uaccess.h	x86: uaccess: use errret as error value in __put_user_size()	2009-02-04 17:28:21 -08:00
uaccess_32.h	x86, mm: pass in 'total' to __copy_from_user_*nocache()	2009-02-25 10:20:03 +01:00
uaccess_64.h	x86: usercopy: check for total size when deciding non-temporal cutoff	2009-02-25 10:20:05 +01:00
ucontext.h
unaligned.h
unistd.h
unistd_32.h
unistd_64.h
user.h
user32.h
user_32.h
user_64.h
vdso.h
vga.h
vgtod.h
vic.h
virtext.h	x86: cpu_emergency_svm_disable() function	2008-12-31 16:52:30 +02:00
vm86.h
vmi.h
vmi_time.h
vmware.h
vmx.h	KVM: VMX: move ASM_VMX_* definitions from asm/kvm_host.h to asm/vmx.h	2008-12-31 16:52:28 +02:00
voyager.h	x86, voyager: move Voyager-specific defines to voyager.h	2009-01-31 04:21:21 +01:00
vsyscall.h
xcr.h
xor.h
xor_32.h
xor_64.h
xsave.h