perf cpu_map: Align cpu map synthesized events properly.
authorDavid Miller <davem@davemloft.net>
Fri, 12 Oct 2018 05:46:55 +0000 (22:46 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 13 Nov 2018 19:16:48 +0000 (11:16 -0800)
commit1c696b9797fb97d4540c9f7ac035722ad560622b
treeb83a5a826246a5dc0afc720e628a60d501c49c63
parent2530be5401885114c0b0b634ba218b2e963063b3
perf cpu_map: Align cpu map synthesized events properly.

[ Upstream commit 0ed149cf5239cc6e7e65bf00f769e8f1e91076c0 ]

The size of the resulting cpu map can be smaller than a multiple of
sizeof(u64), resulting in SIGBUS on cpus like Sparc as the next event
will not be aligned properly.

Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Fixes: 6c872901af07 ("perf cpu_map: Add cpu_map event synthesize function")
Link: http://lkml.kernel.org/r/20181011.224655.716771175766946817.davem@davemloft.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tools/perf/util/event.c