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Avi Kivity 4dc0da8696 perf: Add context field to perf_event 
The perf_event overflow handler does not receive any caller-derived
argument, so many callers need to resort to looking up the perf_event
in their local data structure.  This is ugly and doesn't scale if a
single callback services many perf_events.

Fix by adding a context parameter to perf_event_create_kernel_counter()
(and derived hardware breakpoints APIs) and storing it in the perf_event.
The field can be accessed from the callback as event->overflow_handler_context.
All callers are updated.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1309362157-6596-2-git-send-email-avi@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 		2011-07-01 11:06:38 +02:00
..
cpu perf, arch: Add generic NODE cache events 2011-07-01 11:06:38 +02:00
vsyscall mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm 2011-03-23 16:36:55 -04:00
.gitignore sh: Add an arch/sh/kernel/.gitignore 2008-07-29 08:29:32 +09:00
Makefile Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-01-06 16:50:35 -08:00
asm-offsets.c sh: Add R-standby sleep mode support 2009-10-30 14:38:45 +09:00
cpufreq.c arch/sh/kernel: Use set_cpus_allowed_ptr 2010-03-29 11:40:37 +09:00
crash_dump.c crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn 2011-03-23 19:47:19 -07:00
debugtraps.S sh: kgdb: Rework breakpoint handling on top of notifier chain. 2009-12-22 12:44:14 +09:00
disassemble.c sh: Add a simple code dumper for SUPERH32 show_regs(). 2008-12-22 18:43:49 +09:00
dma-nommu.c sh: Revamp PCI DMA coherence Kconfig bits. 2009-10-27 10:35:02 +09:00
dumpstack.c sh: remove warning and warning_symbol from struct stacktrace_ops 2011-05-23 14:42:15 +09:00
dwarf.c sh: handle early calls to return_address() when using dwarf unwinder. 2010-05-25 16:16:40 +09:00
entry-common.S sh: Correct the offset of the return address in ret_from_exception 2010-02-08 10:46:46 +09:00
ftrace.c tracing: Unify arch_syscall_addr() implementations 2010-02-17 13:07:21 +01:00
head_32.S sh: boot kernel with SR.BL set 2010-09-30 09:43:32 +09:00
head_64.S sh64: Fix up early serial fixmap. 2010-01-12 15:22:26 +09:00
hw_breakpoint.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2010-05-19 11:36:03 -07:00
idle.c sh: CPU hotplug support. 2010-04-26 19:08:55 +09:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io.c sh: support for platforms without PIO. 2010-06-02 16:31:42 +09:00
io_trapped.c sh: wire up perf alignment and emulation faults. 2010-10-13 06:55:26 +09:00
iomap.c sh: machvec IO death. 2010-11-01 09:49:04 -04:00
ioport.c sh: machvec IO death. 2010-11-01 09:49:04 -04:00
irq.c Fix common misspellings 2011-03-31 11:26:23 -03:00
irq_32.c Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
irq_64.c sh64: update for IRQ flag handling naming changes. 2010-10-27 15:34:51 +09:00
kdebugfs.c sh: provide generic arch_debugfs_dir. 2010-09-24 04:04:26 +09:00
kgdb.c kgdb,sh: update superh kgdb exception handling 2010-05-20 21:04:20 -05:00
kprobes.c sh: kprobes SMP support. 2010-06-14 17:06:10 +09:00
localtimer.c sh: CPU hotplug support. 2010-04-26 19:08:55 +09:00
machine_kexec.c lmb: rename to memblock 2010-07-14 17:14:00 +10:00
machvec.c sh: machvec IO death. 2010-11-01 09:49:04 -04:00
module.c sh: Ignore R_SH_NONE module relocations. 2011-05-23 17:09:30 +09:00
nmi_debug.c sh: nmi_debug support. 2009-09-01 17:38:32 +09:00
perf_callchain.c sh: remove warning and warning_symbol from struct stacktrace_ops 2011-05-23 14:42:15 +09:00
perf_event.c perf: Dynamic pmu types 2010-12-16 11:36:43 +01:00
process.c sh: Fix build alloc_thread_info_node function 2011-03-24 15:19:14 +09:00
process_32.c sh, exec: remove redundant set_fs(USER_DS) 2011-06-14 15:15:58 +09:00
process_64.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
ptrace.c sh: Add kprobe-based event tracer. 2010-06-14 15:16:53 +09:00
ptrace_32.c perf: Add context field to perf_event 2011-07-01 11:06:38 +02:00
ptrace_64.c sh: Fix ptrace fpu state initialisation 2011-03-23 22:17:52 +09:00
reboot.c sh: Provide a global TLB flush for U/I-TLB clear. 2010-07-02 15:44:09 +09:00
relocate_kernel.S sh: add kexec jump support 2009-03-18 18:57:43 +09:00
return_address.c sh: handle early calls to return_address() when using dwarf unwinder. 2010-05-25 16:16:40 +09:00
setup.c Fix common misspellings 2011-03-31 11:26:23 -03:00
sh_bios.c sh: sh_bios detection. 2010-01-12 18:42:52 +09:00
sh_ksyms_32.c sh: Clean up more superfluous symbol exports. 2009-10-27 11:51:19 +09:00
sh_ksyms_64.c sh: Clean up more superfluous symbol exports. 2009-10-27 11:51:19 +09:00
signal_32.c sh: Mass ctrl_in/outX to __raw_read/writeX conversion. 2010-01-26 12:58:40 +09:00
signal_64.c Merge branch 'sh/stable-updates' 2010-02-15 14:49:37 +09:00
smp.c sched: Provide scheduler_ipi() callback in response to smp_send_reschedule() 2011-04-14 08:52:32 +02:00
stacktrace.c sh: remove warning and warning_symbol from struct stacktrace_ops 2011-05-23 14:42:15 +09:00
swsusp.c sh: hibernation support 2009-03-10 12:55:40 +09:00
sys_sh.c sh: avoid to flush all cache in sys_cacheflush 2010-11-17 17:55:30 +09:00
sys_sh32.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
sys_sh64.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
syscalls_32.S ns: Wire up the setns system call 2011-05-28 10:48:39 -07:00
syscalls_64.S ns: Wire up the setns system call 2011-05-28 10:48:39 -07:00
time.c sh: Convert sh to use read/update_persistent_clock 2010-03-05 02:04:38 +09:00
topology.c sh: Fix sh build failure when CONFIG_SFC=m 2011-01-19 12:16:55 +09:00
traps.c sh: Mass ctrl_in/outX to __raw_read/writeX conversion. 2010-01-26 12:58:40 +09:00
traps_32.c perf: Remove the nmi parameter from the swevent and overflow interface 2011-07-01 11:06:35 +02:00
traps_64.c perf: Remove the nmi parameter from the swevent and overflow interface 2011-07-01 11:06:35 +02:00
unwinder.c sh: unwinder: Use a special bug flag for unwinder traps. 2009-08-22 05:28:25 +09:00
vmlinux.lds.S percpu: Always align percpu output section to PAGE_SIZE 2011-03-24 18:50:09 +01:00