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linux/arch/x86/kernel
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Peter Zijlstra 3bbfafb77a x86, tsc, locking/static_keys: Employ static_branch_likely() 
Because of the static_key restrictions we had to take an unconditional
jump for the most likely case, causing $I bloat.

Rewrite to use the new primitives.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-03 11:34:16 +02:00
..
acpi
Power management and ACPI material for v4.2-rc1
2015-06-23 14:18:07 -07:00
apic
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
cpu
x86/ldt: Make modify_ldt() optional
2015-07-31 13:30:45 +02:00
fpu
x86/fpu: Disable dependent CPU features on "noxsave"
2015-07-21 08:20:42 +02:00
kprobes
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-14 14:37:47 -07:00
.gitignore
…
alternative.c
Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-06-22 17:59:09 -07:00
amd_gart_64.c
x86: enable DMA CMA with swiotlb
2014-06-04 16:53:57 -07:00
amd_nb.c
x86/gart: Check for GART support before accessing GART registers
2015-05-06 11:15:53 +02:00
apb_timer.c
x86/asm/tsc: Rename native_read_tsc() to rdtsc()
2015-07-06 15:23:28 +02:00
aperture_64.c
x86/gart: Check for GART support before accessing GART registers
2015-05-06 11:15:53 +02:00
apm_32.c
cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logic
2014-11-12 21:17:27 +01:00
asm-offsets_32.c
x86: Remove unused TI_cpu
2015-05-05 20:48:02 +02:00
asm-offsets_64.c
x86/asm/entry: (Re-)rename __NR_entry_INT80_compat_max to __NR_syscall_compat_max
2015-06-08 23:43:38 +02:00
asm-offsets.c
x86: Merge common 32-bit values in asm-offsets.c
2015-05-05 20:48:02 +02:00
audit_64.c
x86: hook up execveat system call
2014-12-13 12:42:51 -08:00
bootflag.c
x86: don't use module_init for non-modular core bootflag code
2015-06-16 14:12:34 -04:00
check.c
mm/memblock: add extra "flags" to memblock to allow selection of memory based on attribute
2015-06-24 17:49:44 -07:00
cpuid.c
x86, cpuid: Use PTR_ERR_OR_ZERO
2014-10-17 13:40:51 -07:00
crash_dump_32.c
…
crash_dump_64.c
…
crash.c
x86/mm: Decouple <linux/vmalloc.h> from <asm/io.h>
2015-06-03 12:02:00 +02:00
devicetree.c
Replace module_init with equivalent device_initcall in non modules.
2015-07-02 10:30:48 -07:00
doublefault.c
…
dumpstack_32.c
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 13:23:34 -07:00
dumpstack_64.c
x86/kernel: Use kstack_end() in dumpstack_64.c
2015-02-23 18:37:13 +01:00
dumpstack.c
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 13:23:34 -07:00
e820.c
The libnvdimm sub-system introduces, in addition to the libnvdimm-core,
2015-06-29 10:34:42 -07:00
early_printk.c
x86/earlyprintk: Allow early_printk() to use console style parameters like '115200n8'
2015-07-06 17:33:47 +02:00
early-quirks.c
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2015-06-26 13:18:51 -07:00
espfix_64.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
ftrace.c
module: remove mod arg from module_free, rename module_memfree().
2015-01-20 11:38:33 +10:30
head32.c
x86: Store a per-cpu shadow copy of CR4
2015-02-04 12:10:42 +01:00
head64.c
x86/kasan: Fix KASAN shadow region page tables
2015-07-06 14:53:13 +02:00
head_32.S
Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-06-22 17:59:09 -07:00
head_64.S
x86/kasan: Fix KASAN shadow region page tables
2015-07-06 14:53:13 +02:00
head.c
…
hpet.c
x86/asm/tsc: Rename native_read_tsc() to rdtsc()
2015-07-06 15:23:28 +02:00
hw_breakpoint.c
perf/x86: Remove get_hbp_len and replace with bp_len
2014-12-03 15:14:30 +01:00
i386_ksyms_32.c
preempt: Use preempt_schedule_context() as the official tracing preemption point
2015-06-07 15:57:42 +02:00
i8237.c
…
i8253.c
…
i8259.c
x86/asm/entry/irq: Clean up IRQn_VECTOR macros
2015-05-10 12:34:28 +02:00
io_delay.c
…
ioport.c
x86/asm/entry: Rename 'init_tss' to 'cpu_tss'
2015-03-06 08:32:58 +01:00
iosf_mbi.c
x86/platform/intel/iosf: Add debugfs config option for IOSF
2014-09-19 13:08:43 +02:00
irq_32.c
x86/irq: Merge irq_regs & irq_stat
2015-05-10 12:34:27 +02:00
irq_64.c
x86/irq: Merge irq_regs & irq_stat
2015-05-10 12:34:27 +02:00
irq_work.c
x86: Consolidate irq entering inlines
2015-05-15 16:04:49 +02:00
irq.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
irqinit.c
Merge branch 'x86/ras' into x86/core, to fix conflicts
2015-06-07 15:35:27 +02:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kdebugfs.c
…
kexec-bzimage64.c
x86/kexec: prepend elfcorehdr instead of appending it to the crash-kernel command-line.
2015-06-30 19:44:57 -07:00
kgdb.c
Linux 4.0-rc7
2015-04-08 09:01:54 +02:00
ksysfs.c
…
kvm.c
The bulk of the changes here is for x86. And for once it's not
2015-06-24 09:36:49 -07:00
kvmclock.c
x86: kvmclock: set scheduler clock stable
2015-05-29 14:01:52 +02:00
ldt.c
x86/ldt: Make modify_ldt synchronous
2015-07-31 10:23:23 +02:00
livepatch.c
livepatch: kernel: add support for live patching
2014-12-22 15:40:49 +01:00
machine_kexec_32.c
x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h
2014-12-16 14:08:17 +01:00
machine_kexec_64.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
2015-06-23 14:07:26 -07:00
Makefile
x86/ldt: Make modify_ldt() optional
2015-07-31 13:30:45 +02:00
mcount_64.S
ftrace/fgraph/x86: Have prepare_ftrace_return() take ip as first parameter
2014-12-01 14:08:58 -05:00
mmconf-fam10h_64.c
…
module.c
x86/mm/KASLR: Propagate KASLR status to kernel proper
2015-04-03 15:26:15 +02:00
mpparse.c
x86: Cleanup irq_domain ops
2015-04-24 15:36:55 +02:00
msr.c
x86, msr: Use seek definitions instead of hard-coded values
2014-10-17 13:40:55 -07:00
nmi_selftest.c
…
nmi.c
Merge branch 'x86/urgent' into x86/asm, before applying dependent patches
2015-07-31 10:23:35 +02:00
paravirt_patch_32.c
x86/asm/tsc, x86/paravirt: Remove read_tsc() and read_tscp() paravirt hooks
2015-07-06 15:23:26 +02:00
paravirt_patch_64.c
Merge branch 'locking/core' into x86/core, to prepare for dependent patch
2015-06-03 10:07:35 +02:00
paravirt-spinlocks.c
locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS
2015-05-11 09:52:09 +02:00
paravirt.c
x86/asm/tsc, x86/paravirt: Remove read_tsc() and read_tscp() paravirt hooks
2015-07-06 15:23:26 +02:00
pci-calgary_64.c
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pci-dma.c
x86: Deinline dma_free_attrs()
2015-05-05 20:48:02 +02:00
pci-iommu_table.c
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pci-nommu.c
…
pci-swiotlb.c
x86/swiotlb: Try coherent allocations with __GFP_NOWARN
2015-06-11 08:28:38 +02:00
pcspeaker.c
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perf_regs.c
perf/x86/64: Report regs_user->ax too in get_regs_user()
2015-04-11 13:08:53 +02:00
pmc_atom.c
x86: pmc_atom: Expose contents of PSS
2015-01-20 12:50:14 +01:00
pmem.c
libnvdimm: Set numa_node to NVDIMM devices
2015-06-26 11:23:38 -04:00
probe_roms.c
…
process_32.c
x86/vm86: Clean up vm86.h includes
2015-07-31 13:31:10 +02:00
process_64.c
x86/ldt: Make modify_ldt() optional
2015-07-31 13:30:45 +02:00
process.c
x86/vm86: Move vm86 fields out of 'thread_struct'
2015-07-31 13:31:07 +02:00
ptrace.c
x86/entry: Move C entry and exit code to arch/x86/entry/common.c
2015-07-07 10:59:05 +02:00
pvclock.c
x86: pvclock: Really remove the sched notifier for cross-cpu migrations
2015-04-27 15:49:30 +02:00
quirks.c
x86: HPET force enable for e6xx based systems
2014-09-15 17:53:35 -07:00
reboot_fixups_32.c
…
reboot.c
x86/reboot: Add ASRock Q1900DC-ITX mainboard reboot quirk
2015-04-01 14:08:09 +02:00
relocate_kernel_32.S
x86/asm: Optimize unnecessarily wide TEST instructions
2015-03-07 11:12:43 +01:00
relocate_kernel_64.S
x86/asm: Replace "MOVQ $imm, %reg" with MOVL
2015-04-01 13:17:39 +02:00
resource.c
x86: don't exclude low BIOS area when allocating address space for non-PCI cards
2014-07-16 12:29:36 -06:00
rtc.c
kernel.h: remove ancient __FUNCTION__ hack
2015-02-12 18:54:13 -08:00
setup_percpu.c
x86: Convert a few more per-CPU items to read-mostly ones
2014-11-04 20:13:28 +01:00
setup.c
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-07-04 08:58:50 -07:00
signal_compat.c
x86/compat: Move copy_siginfo_*_user32() to signal_compat.c
2015-07-06 15:28:55 +02:00
signal.c
x86/vm86: Clean up vm86.h includes
2015-07-31 13:31:10 +02:00
smp.c
x86: Consolidate irq entering inlines
2015-05-15 16:04:49 +02:00
smpboot.c
genirq: Revert sparse irq locking around __cpu_up() and move it to x86 for now
2015-07-15 10:39:17 +02:00
stacktrace.c
…
step.c
x86/ldt: Make modify_ldt() optional
2015-07-31 13:30:45 +02:00
sys_x86_64.c
x86/mm: Improve AMD Bulldozer ASLR workaround
2015-03-31 10:01:17 +02:00
sysfb_efi.c
…
sysfb_simplefb.c
x86/simplefb: Use PTR_ERR_OR_ZERO
2014-10-17 13:40:52 -07:00
sysfb.c
x86/sysfb: Use PTR_ERR_OR_ZERO
2014-10-17 13:40:52 -07:00
tboot.c
…
tce_64.c
…
test_nx.c
…
test_rodata.c
treewide: Fix typo in printk messages
2015-03-06 23:05:39 +01:00
time.c
x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'
2015-03-23 11:14:17 +01:00
tls.c
x86, tls: Interpret an all-zero struct user_desc as "no segment"
2015-01-22 21:45:07 +01:00
tls.h
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topology.c
…
trace_clock.c
x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites
2015-07-06 15:23:29 +02:00
tracepoint.c
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traps.c
x86/vm86: Clean up vm86.h includes
2015-07-31 13:31:10 +02:00
tsc_msr.c
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tsc_sync.c
x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers
2015-07-06 15:23:29 +02:00
tsc.c
x86, tsc, locking/static_keys: Employ static_branch_likely()
2015-08-03 11:34:16 +02:00
uprobes.c
x86: Make is_64bit_mm() widely available
2015-06-09 12:24:32 +02:00
verify_cpu.S
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vm86_32.c
x86/vm86: Rename vm86->v86flags and v86mask
2015-07-31 13:31:11 +02:00
vmlinux.lds.S
x86-64: Use RIP-relative addressing for most per-CPU accesses
2014-11-04 20:43:14 +01:00
vsmp_64.c
x86: replace __init_or_module with __init in non-modular vsmp_64.c
2015-06-16 14:12:41 -04:00
x86_init.c
PCI changes for the v4.2 merge window:
2015-06-23 13:41:24 -07:00
x8664_ksyms_64.c
preempt: Use preempt_schedule_context() as the official tracing preemption point
2015-06-07 15:57:42 +02:00