kernel_optimize_test/tools
Alexander Yarygin 673d659f5c perf kvm stat live: Enable events copying
Process of analyzing events caused by 2 functions: mmap_read() and
finished_round().

During mmap_read(), perf receives events from shared memory, queues
their pointers for further processing in finished_round() and notifies
the kernel that the events have been processed.

By the time when finished_round() is invoked, queued events can be
overwritten by the kernel, so the finished_round() occurs on potentially
corrupted memory.

Since there is no place where the event can be safely consumed, let's
copy events when queueing.

Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1412347212-28237-3-git-send-email-yarygin@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-15 17:39:03 -03:00
..
cgroup
firewire
hv Tools: hv: fix file overwriting of hv_fcopy_daemon 2014-07-09 14:21:26 -07:00
include tools: add more endian.h macros 2014-09-26 11:03:01 +02:00
lguest
lib tools lib fd array: Allow associating an integer cookie with each entry 2014-09-25 16:46:55 -03:00
net tools: bpf_jit_disasm: increase image buffer size 2014-05-16 16:44:08 -04:00
nfsd
perf perf kvm stat live: Enable events copying 2014-10-15 17:39:03 -03:00
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2014-08-16 09:25:34 -06:00
scripts
testing Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 15:44:12 +02:00
thermal/tmon tmon: set umask to a reasonable value 2014-07-01 22:00:51 +08:00
time tools: add script to test udelay 2014-07-23 10:16:38 -07:00
usb Linux 3.17-rc5 2014-09-16 09:53:59 -05:00
virtio tools: Consolidate types.h 2014-05-01 21:22:39 +02:00
vm mm/balloon_compaction: add vmstat counters and kpageflags bit 2014-10-09 22:26:01 -04:00
Makefile tools/liblockdep: Build liblockdep from tools/Makefile 2014-05-08 13:34:45 -04:00