kernel_optimize_test/tools
Yann Droneaud 57480d2cd9 perf tools: Enable close-on-exec flag on perf file descriptor
In commit a21b0b354d ('perf: Introduce a flag to enable
close-on-exec in perf_event_open()'), flag PERF_FLAG_FD_CLOEXEC
was added to perf_event_open(2) syscall to allows userspace
to atomically enable close-on-exec behavor when creating
the file descriptor.

This patch makes perf tools use the new flag if supported
by the kernel, so that the event file descriptors got
automatically closed if perf tool exec a sub-command.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/1404160127-7475-1-git-send-email-ydroneaud@opteya.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
2014-07-18 09:09:34 +02:00
..
cgroup
firewire
hv Tools: hv: Handle the case when the target file exists correctly 2014-04-16 14:10:36 -07:00
include perf tools: Move ACCESS_ONCE from perf.h header 2014-05-05 17:49:07 +02:00
lguest
lib tools lib traceevent: Fix a risk for doing free on uninitialized pointer 2014-06-27 11:14:47 +02:00
net tools: bpf_jit_disasm: increase image buffer size 2014-05-16 16:44:08 -04:00
nfsd
perf perf tools: Enable close-on-exec flag on perf file descriptor 2014-07-18 09:09:34 +02:00
power Merge branches 'acpi-tools' and 'pm-tools' 2014-06-03 23:13:34 +02:00
scripts
testing Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-06-12 20:11:38 -07:00
thermal/tmon
usb tools: usb: aio example applications 2014-05-14 09:23:24 -05:00
virtio tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
vm tools/vm/page-types.c: catch sigbus if raced with truncate 2014-06-04 16:53:51 -07:00
Makefile tools/liblockdep: Build liblockdep from tools/Makefile 2014-05-08 13:34:45 -04:00