Thomas Gleixner dd86e373e0 perf/x86/intel/rapl: Make package handling more robust ... The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>		2017-02-01 08:37:27 +01:00
..
acpi	More ACPI updates for v4.10-rc1	2016-12-22 10:19:32 -08:00
asm-generic	asm-prototypes: Clear any CPP defines before declaring the functions	2017-01-05 12:57:42 +01:00
clocksource
crypto	This pull contains one set of changes: a conversion of the crypto DocBook	2016-12-17 16:00:34 -08:00
drm	Merge tag 'drm-misc-fixes-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes	2017-01-27 10:16:56 +10:00
dt-bindings	dt-bindings: mfd: Remove TPS65217 interrupts	2016-12-27 10:06:00 -08:00
keys
kvm	KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems	2017-01-13 11:19:25 +00:00
linux	perf/x86/intel/rapl: Make package handling more robust	2017-02-01 08:37:27 +01:00
math-emu
media
memory
misc
net	tcp: don't annotate mark on control socket from tcp_v6_send_response()	2017-01-27 10:33:56 -05:00
pcmcia
ras
rdma	RDMA/core: Add the function ib_mtu_int_to_enum	2017-01-24 15:34:22 -05:00
rxrpc
scsi	Merge remote-tracking branch 'mkp-scsi/fixes' into fixes	2017-01-17 17:32:54 -05:00
soc	ARCv2: MCIP: update the BCR per current changes	2017-01-24 11:05:59 -08:00
sound	Merge remote-tracking branches 'asoc/fix/arizona', 'asoc/fix/dpcm', 'asoc/fix/dwc', 'asoc/fix/fsl-ssi' and 'asoc/fix/hdmi-codec' into asoc-linus	2017-01-10 10:47:50 +00:00
target	target: add XCOPY target/segment desc sense codes	2017-01-10 08:40:32 -08:00
trace	Merge branch 'for-linus-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-01-13 17:40:22 -08:00
uapi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-01-27 12:54:16 -08:00
video
xen	xen: features and fixes for 4.10 rc0	2016-12-13 16:07:55 -08:00
Kbuild