linux/include
Jiri Olsa cf4957f17f perf: Add PERF_EVENT_IOC_ID ioctl to return event ID
The only way to get the event ID is by reading the event fd,
followed by parsing the ID value out of the returned data.

While this is ok for current read format used by perf tool,
it is not ok when we use PERF_FORMAT_GROUP format.

With this format the data are returned for the whole group
and there's no way to find out what ID belongs to our fd
(if we are not group leader event).

Adding a simple ioctl that returns event primary ID for given fd.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-v1bn5cto707jn0bon34afqr1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-08-07 17:35:19 -03:00
..
acpi PCI changes for the v3.11 merge window: 2013-07-03 16:31:35 -07:00
asm-generic Merge branch 'cpuinit-delete' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2013-07-07 11:01:19 -07:00
clocksource
crypto
drm drm/cma: remove GEM CMA specific dma_buf functionality 2013-07-05 15:44:54 +10:00
dt-bindings ARM: at91: dt: add header to define at_hdmac configuration 2013-07-05 11:40:53 +05:30
keys
kvm ARM: KVM: Allow host virt timer irq to be different from guest timer virt irq 2013-06-26 10:50:02 -07:00
linux sched: Implement smarter wake-affine logic 2013-07-23 12:18:41 +02:00
math-emu
media [media] exynos4-is: Correct colorspace handling at FIMC-LITE 2013-06-28 15:33:27 -03:00
memory
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-07-13 17:42:22 -07:00
pcmcia
ras
rdma Merge branches 'af_ib', 'cxgb4', 'misc', 'mlx5', 'ocrdma', 'qib' and 'srp' into for-next 2013-07-08 11:22:11 -07:00
rxrpc
scsi [SCSI] libiscsi: Added new boot entries in the session sysfs 2013-06-26 18:04:11 -07:00
sound ASoC: More updates for v3.11 2013-06-28 13:36:22 +02:00
target target: make queue_tm_rsp() return void 2013-07-07 18:36:53 -07:00
trace Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-07-11 12:57:19 -07:00
uapi perf: Add PERF_EVENT_IOC_ID ioctl to return event ID 2013-08-07 17:35:19 -03:00
video Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2013-07-09 16:04:31 -07:00
xen Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-07-09 18:24:39 -07:00
Kbuild