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Young Xiao 37515df6b4 sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD 
[ Upstream commit 56cd0aefa475079e9613085b14a0f05037518fed ]

The PERF_EVENT_IOC_PERIOD ioctl command can be used to change the
sample period of a running perf_event. Consequently, when calculating
the next event period, the new period will only be considered after the
previous one has overflowed.

This patch changes the calculation of the remaining event ticks so that
they are offset if the period has changed.

See commit 3581fe0ef3 ("ARM: 7556/1: perf: fix updated event period in
response to PERF_EVENT_IOC_PERIOD") for details.

Signed-off-by: Young Xiao <92siuyang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-10 09:56:32 +02:00
..
.gitignore
apc.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
asm-offsets.c
audit.c sparc64: fix sparse warnings in compat_audit.c 2014-05-18 19:01:34 -07:00
auxio_32.c sparc32: fix sparse warning in auxio_32.c 2014-05-18 19:01:27 -07:00
auxio_64.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
btext.c sparc64: fix sparse warning in btext.c 2014-05-18 19:01:30 -07:00
central.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
cherrs.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
chmc.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
compat_audit.c sparc64: fix sparse warnings in compat_audit.c 2014-05-18 19:01:34 -07:00
cpu.c sparc64: correctly recognise M6 and M7 cpu type 2014-09-09 15:24:10 -07:00
cpumap.c sparc64: support M6 and M7 for building CPU distribution map 2014-09-09 15:24:10 -07:00
cpumap.h sparc: drop use of extern for prototypes in arch/sparc/* 2014-05-18 19:01:29 -07:00
devices.c sparc32: drop tadpole specific code 2014-05-18 19:01:29 -07:00
dma.c
ds.c sparc64: Fix build warnings with gcc 7. 2018-06-06 16:46:23 +02:00
dtlb_miss.S
dtlb_prot.S sparc: Don't leak context bits into thread->fault_address 2016-11-21 10:06:40 +01:00
ebus.c sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
entry.h sparc: Resolve conflict between sparc v9 and M7 on usage of bit 9 of TTE 2015-05-31 22:15:01 -07:00
entry.S sparc: Fix system call tracing register handling. 2016-06-24 10:18:21 -07:00
etrap_32.S
etrap_64.S
fpu_traps.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
ftrace.c ftrace: Do not pass data to ftrace_dyn_arch_init 2014-03-07 10:06:14 -05:00
getsetcc.S
head_32.S
head_64.S sparc64: Delete now unused user copy assembler helpers. 2016-11-21 10:06:42 +01:00
helpers.S
hvapi.c sparc: perf: Add support M7 processor 2015-03-19 18:54:49 -07:00
hvcalls.S sparc: perf: Add support M7 processor 2015-03-19 18:54:49 -07:00
hvtramp.S sparc64: Fix register corruption in top-most kernel stack frame during boot. 2014-10-24 09:52:49 -07:00
idprom.c
iommu.c iommu-common: Fix error code used in iommu_tbl_range_{alloc,free}(). 2015-11-04 11:30:57 -08:00
iommu_common.h remove <asm/scatterlist.h> 2015-05-05 13:35:39 -06:00
ioport.c sparc32: dma_alloc_coherent must honour gfp flags 2014-09-10 14:03:28 -07:00
irq.h sparc: drop use of extern for prototypes in arch/sparc/* 2014-05-18 19:01:29 -07:00
irq_32.c sparc32: fix sparse warnings in irq_32.c 2014-04-29 01:12:25 -04:00
irq_64.c arch/sparc: support NR_CPUS = 4096 2017-06-14 13:16:20 +02:00
itlb_miss.S
ivec.S
jump_label.c sparc: Handle negative offsets in arch_jump_label_transform 2016-11-21 10:06:41 +01:00
kernel.h sparc64: delete old wrap code 2017-06-14 13:16:20 +02:00
kgdb_32.c
kgdb_64.c sparc64: fix sparse warning in kgdb_64.c 2014-05-18 19:01:34 -07:00
kprobes.c sparc: Replace __get_cpu_var uses 2014-08-26 13:45:55 -04:00
kstack.h
ktlb.S sparc: Don't leak context bits into thread->fault_address 2016-11-21 10:06:40 +01:00
ldc.c sparc64: ldc abort during vds iso boot 2018-04-13 19:50:20 +02:00
led.c
leon_kernel.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
leon_pci.c PCI: Cleanup control flow 2015-03-19 10:17:22 -05:00
leon_pci_grpci1.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
leon_pci_grpci2.c genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
leon_pmc.c sparc32: fix sparse warnings in leon_pmc.c 2014-04-29 01:12:27 -04:00
leon_smp.c sparc32, leon: Align ccall_info to prevent unaligned traps on crosscall 2014-12-11 18:51:56 -08:00
Makefile sparc64: Fix return from trap window fill crashes. 2016-06-24 10:18:21 -07:00
mdesc.c sparc64: Setup sysfs to mark LDOM sockets, cores and threads correctly 2015-04-22 15:42:56 -04:00
misctrap.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
module.c mm: vmalloc: pass additional vm_flags to __vmalloc_node_range() 2015-02-13 21:21:42 -08:00
nmi.c sparc: Replace __get_cpu_var uses 2014-08-26 13:45:55 -04:00
of_device_32.c
of_device_64.c
of_device_common.c sparc: fix sparse warnings in of_device_common.c 2014-04-29 01:12:27 -04:00
of_device_common.h
pci.c sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata 2018-11-10 07:41:37 -08:00
pci_common.c sparc/PCI: Add mem64 resource parsing for root bus 2015-10-29 17:35:46 -05:00
pci_fire.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
pci_impl.h sparc/PCI: Add mem64 resource parsing for root bus 2015-10-29 17:35:46 -05:00
pci_msi.c PCI/MSI: Rename mask/unmask_msi_irq treewide 2014-11-23 13:01:45 +01:00
pci_psycho.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
pci_sabre.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
pci_schizo.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
pci_sun4v.c iommu-common: Fix error code used in iommu_tbl_range_{alloc,free}(). 2015-11-04 11:30:57 -08:00
pci_sun4v.h sparc: drop use of extern for prototypes in arch/sparc/* 2014-05-18 19:01:29 -07:00
pci_sun4v_asm.S
pcic.c PCI: Assign resources before drivers claim devices (pci_scan_bus()) 2015-03-12 15:04:01 -05:00
pcr.c sparc: perf: Add support M7 processor 2015-03-19 18:54:49 -07:00
perf_event.c sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD 2019-07-10 09:56:32 +02:00
pmc.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
power.c sparc: kernel: drop owner assignment from platform_drivers 2014-10-20 16:20:15 +02:00
process_32.c sched, sparc32: Update scheduler comments in copy_thread() 2015-08-04 09:48:12 +02:00
process_64.c sparc: Touch NMI watchdog when walking cpus and calling printk 2015-03-19 18:54:50 -07:00
prom.h sparc: drop use of extern for prototypes in arch/sparc/* 2014-05-18 19:01:29 -07:00
prom_32.c
prom_64.c sparc64: fix sparse warning in prom_64.c 2014-05-18 19:01:31 -07:00
prom_common.c
prom_irqtrans.c
psycho_common.c
psycho_common.h sparc: drop use of extern for prototypes in arch/sparc/* 2014-05-18 19:01:29 -07:00
ptrace_32.c sparc32: fix sparse warning in ptrace_32.c 2014-04-29 01:12:26 -04:00
ptrace_64.c sparc/ptrace: Preserve previous registers for short regset write 2017-03-31 09:49:54 +02:00
reboot.c
rtrap_32.S
rtrap_64.S sparc64: Fix return from trap window fill crashes. 2016-06-24 10:18:21 -07:00
sbus.c
setup_32.c sparc32: fix sparse warnings in setup_32.c 2014-04-29 01:12:25 -04:00
setup_64.c sparc64: Add ADI capability to cpu capabilities 2015-12-24 12:05:06 -05:00
signal32.c sparc: Harden signal return frame checks. 2016-06-24 10:18:21 -07:00
signal_32.c sparc32: Fix inverted invalid_frame_pointer checks on sigreturns 2016-12-10 19:07:25 +01:00
signal_64.c sparc: Harden signal return frame checks. 2016-06-24 10:18:21 -07:00
sigutil.h
sigutil_32.c sparc: Harden signal return frame checks. 2016-06-24 10:18:21 -07:00
sigutil_64.c sparc: Harden signal return frame checks. 2016-06-24 10:18:21 -07:00
smp_32.c sparc: fix decimal printf format specifiers prefixed with 0x 2014-08-06 14:41:10 -07:00
smp_64.c sparc64: Migrate hvcons irq to panicked cpu 2017-10-21 17:09:05 +02:00
sparc_ksyms_32.c sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
sparc_ksyms_64.c sparc64: Delete __ret_efault. 2016-11-21 10:06:41 +01:00
spiterrs.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
sstate.c
stacktrace.c
starfire.c arch: sparc: kernel: starfire.c: Remove unused function 2015-03-01 21:33:58 -08:00
sun4d_irq.c sparc/irq: Use helper irq_data_get_irq_handler_data() 2015-07-31 22:20:05 +02:00
sun4d_smp.c sparc: Replace __get_cpu_var uses 2014-08-26 13:45:55 -04:00
sun4m_irq.c sparc/irq: Use helper irq_data_get_irq_handler_data() 2015-07-31 22:20:05 +02:00
sun4m_smp.c sparc/time: Migrate to new 'set-state' interface 2015-08-10 11:41:05 +02:00
sun4v_ivec.S sparc64: Measure receiver forward progress to avoid send mondo timeout 2017-08-11 09:08:56 -07:00
sun4v_tlb_miss.S sparc64: sun4v TLB error power off events 2014-09-16 17:46:44 -07:00
sys32.S sparc: Hook up renameat2 syscall. 2014-07-21 22:27:56 -07:00
sys_sparc32.c sparc64: fix sparse warnings in sys_sparc32.c 2014-05-18 19:01:31 -07:00
sys_sparc_32.c sys: don't hold uts_sem while accessing userspace memory 2018-09-09 20:04:35 +02:00
sys_sparc_64.c sys: don't hold uts_sem while accessing userspace memory 2018-09-09 20:04:35 +02:00
syscalls.S sparc: Fix system call tracing register handling. 2016-06-24 10:18:21 -07:00
sysfs.c sparc64: fix format string mismatch in arch/sparc/kernel/sysfs.c 2014-05-21 12:54:42 -07:00
systbls.h sparc64: fix sparse warnings in sys_sparc32.c 2014-05-18 19:01:31 -07:00
systbls_32.S sparc: Wire up mlock2 system call. 2015-12-31 15:38:56 -05:00
systbls_64.S sparc: Wire up mlock2 system call. 2015-12-31 15:38:56 -05:00
time_32.c sparc/time: Migrate to new 'set-state' interface 2015-08-10 11:41:05 +02:00
time_64.c sparc/time: Migrate to new 'set-state' interface 2015-08-10 11:41:05 +02:00
trampoline_32.S sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
trampoline_64.S sparc64: Fix register corruption in top-most kernel stack frame during boot. 2014-10-24 09:52:49 -07:00
traps_32.c sparc: Remove signal translation and exec_domain 2015-04-12 21:03:21 +02:00
traps_64.c sparc64: Measure receiver forward progress to avoid send mondo timeout 2017-08-11 09:08:56 -07:00
tsb.S sparc64: Prevent perf from running during super critical sections 2017-08-12 19:29:09 -07:00
ttable_32.S
ttable_64.S sparc64: delete old wrap code 2017-06-14 13:16:20 +02:00
una_asm_32.S
una_asm_64.S
unaligned_32.c sparc: use %s for unaligned panic 2014-07-21 21:37:06 -07:00
unaligned_64.c sparc64: Don't restrict fp regs for no-fault loads 2015-11-04 15:00:49 -05:00
urtt_fill.S sparc64: Fix return from trap window fill crashes. 2016-06-24 10:18:21 -07:00
utrap.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
vio.c sparc: Machine description indices can vary 2017-06-14 13:16:20 +02:00
viohs.c sparc: VIO protocol version 1.6 2014-09-30 14:17:08 -07:00
visemul.c
vmlinux.lds.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
windows.c sparc32: fix sparse warnings in windows.c 2014-04-29 01:12:25 -04:00
winfixup.S sparc64: Fix bootup regressions on some Kconfig combinations. 2016-06-24 10:18:21 -07:00
wof.S
wuf.S