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Peter Zijlstra 6809b6ea73 perf, x86: Less disastrous PEBS/BTS buffer allocation failure 
Currently PEBS/BTS buffers are allocated when we instantiate the first
event, when this fails everything fails.

This is a problem because esp. BTS tries to allocate a rather large
buffer (64K), which can easily fail.

This patch changes the logic such that when either buffer allocation
fails, we simply don't allow events that would use these facilities,
but continue functioning for all other events.

This logic comes from a much larger patch proposed by Stephane.

Suggested-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Stephane Eranian <eranian@google.com>
LKML-Reference: <20101019134808.354429461@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-10-22 14:18:26 +02:00
..
acpi
Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 18:52:11 -07:00
apic
Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 18:52:11 -07:00
cpu
perf, x86: Less disastrous PEBS/BTS buffer allocation failure
2010-10-22 14:18:26 +02:00
.gitignore
…
alternative.c
x86: Use __stop_machine() in text_poke_smp()
2010-10-14 08:55:28 +02:00
amd_iommu_init.c
Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:23:48 -07:00
amd_iommu.c
x86/amd-iommu: Update copyright headers
2010-10-13 11:13:21 +02:00
amd_nb.c
x86, amd_nb: Enable GART support for AMD family 0x15 CPUs
2010-10-01 16:18:32 -07:00
apb_timer.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
aperture_64.c
Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:23:48 -07:00
apm_32.c
update email address
2010-07-19 10:56:54 +02:00
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
Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 11:00:55 -08:00
bootflag.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
check.c
x86: Use memblock to replace early_res
2010-08-27 11:12:29 -07:00
cpuid.c
x86: convert cpu notifier to return encapsulate errno value
2010-05-27 09:12:48 -07:00
crash_dump_32.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
crash_dump_64.c
mm, x86: Saving vmcore with non-lazy freeing of vmas
2010-09-17 09:11:56 +02:00
crash.c
x86, UV: Make kdump avoid stack dumps
2010-07-21 11:33:27 -07:00
doublefault_32.c
x86: Use get_desc_base()
2009-07-19 18:27:51 +02:00
dumpstack_32.c
x86: Unify dumpstack.h and stacktrace.h
2010-06-08 23:29:52 +02:00
dumpstack_64.c
x86: Unify dumpstack.h and stacktrace.h
2010-06-08 23:29:52 +02:00
dumpstack.c
x86: Unify dumpstack.h and stacktrace.h
2010-06-08 23:29:52 +02:00
e820.c
x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
2010-08-27 11:13:54 -07:00
early_printk_mrst.c
x86, earlyprintk: Add hsu early console for Intel Medfield platform
2010-10-08 10:01:47 +02:00
early_printk.c
x86, earlyprintk: Add hsu early console for Intel Medfield platform
2010-10-08 10:01:47 +02:00
early-quirks.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:18:06 -07:00
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
…
efi_stub_64.S
…
efi.c
x86, memblock: Replace e820_/_early string with memblock_
2010-08-27 11:13:47 -07:00
entry_32.S
x86: Use {push,pop}{l,q}_cfi in more places
2010-09-03 08:14:11 +02:00
entry_64.S
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:20:32 -07:00
ftrace.c
jump label: Make dynamic no-op selection available outside of ftrace
2010-09-20 18:19:39 -04:00
head32.c
Merge commit 'v2.6.36-rc3' into x86/memblock
2010-08-31 09:45:46 +02:00
head64.c
x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S
2010-10-14 09:06:49 +02:00
head_32.S
x86-32: Separate 1:1 pagetables from swapper_pg_dir
2010-08-18 09:17:20 -07:00
head_64.S
x86-64: Simplify loading initial_gs
2010-07-21 21:23:51 -07:00
head.c
x86: Use memblock to replace early_res
2010-08-27 11:12:29 -07:00
hpet.c
x86: ioapic/hpet: Convert to new chip functions
2010-10-12 16:53:37 +02:00
hw_breakpoint.c
x86: Fix instruction breakpoint encoding
2010-09-17 03:24:13 +02:00
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
Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:34:32 -07:00
i8237.c
…
i8253.c
i8253: Convert i8253_lock to raw_spinlock
2010-03-02 10:28:38 +01:00
i8259.c
x86: i8259: Convert to new irq_chip functions
2010-10-12 16:53:36 +02:00
init_task.c
Rename .data.cacheline_aligned to .data..cacheline_aligned.
2010-03-03 11:25:58 +01:00
io_delay.c
…
ioport.c
x86-64, paravirt: Call set_iopl_mask() on 64 bits
2009-12-09 16:54:08 -08:00
irq_32.c
x86: Unify fixup_irqs() for 32-bit and 64-bit kernels
2009-11-02 15:56:34 +01:00
irq_64.c
x86: Unify fixup_irqs() for 32-bit and 64-bit kernels
2009-11-02 15:56:34 +01:00
irq_work.c
irq_work: Add generic hardirq context callbacks
2010-10-18 19:58:50 +02:00
irq.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
irqinit.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
jump_label.c
jump label: x86 support
2010-09-22 16:33:03 -04:00
kdebugfs.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
kgdb.c
kgdb: add missing __percpu markup in arch/x86/kernel/kgdb.c
2010-08-16 15:58:30 -05:00
kprobes.c
jump label: Add jump_label_text_reserved() to reserve jump points
2010-09-22 16:30:46 -04:00
kvm.c
KVM guest: do not batch pte updates from interrupt context
2009-09-10 18:10:50 +03:00
kvmclock.c
x86, paravirt: don't compute pvclock adjustments if we trust the tsc
2010-05-19 11:41:05 +03:00
ldt.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
machine_kexec_32.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-08 13:27:33 -08:00
machine_kexec_64.c
x86, cleanups: Use clear_page/copy_page rather than memset/memcpy
2010-09-22 15:36:49 -07:00
Makefile
Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:23:48 -07:00
mca_32.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
microcode_amd.c
Revert "x86: ucode-amd: Load ucode-patches once ..."
2010-01-23 06:21:59 +01:00
microcode_core.c
driver core: add devname module aliases to allow module on-demand auto-loading
2010-05-25 15:08:26 -07:00
microcode_intel.c
x86: Improve Intel microcode loader performance
2010-03-11 13:49:06 +01:00
mmconf-fam10h_64.c
x86: Move range related operation to one file
2010-02-10 17:47:17 -08:00
module.c
Merge commit 'v2.6.36-rc7' into perf/core
2010-10-08 10:46:27 +02:00
mpparse.c
Merge commit 'v2.6.36-rc3' into x86/memblock
2010-08-31 09:45:46 +02:00
mrst.c
Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 10:06:28 -07:00
msr.c
x86: convert cpu notifier to return encapsulate errno value
2010-05-27 09:12:48 -07:00
olpc_ofw.c
x86, olpc: Rework BIOS signature check
2010-09-23 11:15:00 -07:00
olpc-xo1.c
x86, olpc: Add XO-1 poweroff support
2010-10-12 17:31:15 -07:00
olpc.c
x86, olpc: Register XO-1 platform devices
2010-10-13 11:51:25 -07:00
paravirt_patch_32.c
…
paravirt_patch_64.c
…
paravirt-spinlocks.c
locking: Convert __raw_spin* functions to arch_spin*
2009-12-14 23:55:32 +01:00
paravirt.c
x86, paravirt: Remove alloc_pmd_clone hook, only used by VMI
2010-08-23 17:09:44 -07:00
pci-calgary_64.c
x86, calgary: Make Calgary IOMMU use IOMMU_INIT_* macros.
2010-08-26 15:14:15 -07:00
pci-dma.c
x86, iommu: Utilize the IOMMU_INIT macros functionality.
2010-08-26 15:14:52 -07:00
pci-gart_64.c
Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:23:48 -07:00
pci-iommu_table.c
x86, iommu: Add proper dependency sort routine (and sanity check).
2010-08-26 15:13:19 -07:00
pci-nommu.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
pci-swiotlb.c
x86, swiotlb: Make SWIOTLB use IOMMU_INIT_* macros.
2010-08-26 15:13:37 -07:00
pcspeaker.c
…
probe_roms_32.c
…
process_32.c
x86, perf: Add power_end event to process_*.c cpu_idle routine
2010-06-18 11:35:10 +02:00
process_64.c
x86-64, fpu: Disable preemption when using TS_USEDFPU
2010-09-09 14:16:45 -07:00
process.c
Make do_execve() take a const filename pointer
2010-08-17 18:07:43 -07:00
ptrace.c
hw-breakpoints: Tag ptrace breakpoint as exclude_kernel
2010-05-01 04:32:07 +02:00
pvclock.c
x86, paravirt: don't compute pvclock adjustments if we trust the tsc
2010-05-19 11:41:05 +03:00
quirks.c
x86: Force HPET readback_cmp for all ATI chipsets
2010-07-15 17:10:02 +02:00
reboot_fixups_32.c
cs5535: move the DIVIL MSR definition into linux/cs5535.h
2009-12-15 08:53:28 -08:00
reboot.c
x86, cleanup: Remove obsolete boot_cpu_id variable
2010-08-12 14:01:38 -07:00
relocate_kernel_32.S
…
relocate_kernel_64.S
…
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
Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 18:52:11 -07:00
setup.c
Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 18:52:11 -07:00
sfi.c
x86: sfi: Make local functions static
2010-10-15 19:37:39 +02:00
signal.c
x86: Merge sys_sigaltstack
2009-12-09 16:28:59 -08:00
smp.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
smpboot.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 14:11:46 -07:00
stacktrace.c
x86: Unify save_stack_address() and save_stack_address_nosched()
2010-06-09 17:32:19 +02:00
step.c
x86, ptrace: Fix block-step
2010-03-26 11:33:57 +01:00
sys_i386_32.c
i386: Make kernel_execve() suitable for stack unwinding
2010-09-03 08:16:02 +02:00
sys_x86_64.c
improve sys_newuname() for compat architectures
2010-03-12 15:52:32 -08:00
syscall_64.c
…
syscall_table_32.S
x86: fix up system call numbering nit
2010-08-10 15:35:10 -07:00
tboot.c
Merge branch 'kvm-updates/2.6.35' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2010-05-21 17:16:21 -07:00
tce_64.c
…
test_nx.c
…
test_rodata.c
…
time.c
x86: Convert i8259_lock to raw_spinlock
2010-02-16 18:21:32 +01:00
tlb_uv.c
x86, UV: Initialize BAU hub map
2010-08-01 09:18:41 +02:00
tls.c
…
tls.h
…
topology.c
…
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
Merge commit 'v2.6.36-rc7' into core/memblock
2010-10-08 09:15:00 +02:00
traps.c
x86-32, fpu: Remove math_emulate stub
2010-09-09 14:17:11 -07:00
tsc_sync.c
locking: Convert __raw_spin* functions to arch_spin*
2009-12-14 23:55:32 +01:00
tsc.c
Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-10-21 13:01:08 -07:00
uv_irq.c
x86: uv: Clean up the direct access to irq_desc
2010-10-12 16:53:43 +02:00
uv_sysfs.c
x86: Remove trailing spaces in messages
2010-02-07 17:47:51 +01:00
uv_time.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
verify_cpu_64.S
x86: Use symbolic MSR names
2010-07-21 21:23:40 -07:00
visws_quirks.c
x86: Cleanup visws interrupt handling
2010-10-12 16:53:35 +02:00
vm86_32.c
x86, 32-bit: Convert sys_vm86 & sys_vm86old
2009-12-09 16:29:23 -08:00
vmlinux.lds.S
x86, iommu: Fix IOMMU_INIT alignment rules
2010-08-31 08:06:10 +02:00
vsmp_64.c
…
vsyscall_64.c
timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset
2010-07-27 12:40:54 +02:00
x86_init.c
x86: Add i8042 pre-detection hook to x86_platform_ops
2010-07-07 17:05:06 -07:00
x8664_ksyms_64.c
x86-64: Don't export init_level4_pgt
2010-04-28 17:25:47 -07:00
xsave.c
Merge branch 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 16:25:13 -07:00