Hosts the 0x221E linux distro kernel. https://git.0xinfinity.dev/distro/kernel.git/atom?h=master 2020-04-03T12:37:55Z 2020-04-03T12:37:55Z Namhyung Kim 2020-04-02T01:52:49Z urn:sha1:49f550ea87c73671ee4d5e08820e0976894dd610 The file handle (FHANDLE) support is configurable so some systems might not have it. So add a config feature item to check it on build time so that we don't add the cgroup tracking feature based on that. Committer notes: Had to make the test use the same construct as its later use in synthetic-events.c, in the next patch in this series. i.e. make it be: struct { struct file_handle fh; uint64_t cgroup_id; } handle; To cope with: CC /tmp/build/perf/util/cloexec.o util/synthetic-events.c:428:22: error: field 'fh' with CC /tmp/build/perf/util/call-path.o variable sized type 'struct file_handle' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct file_handle fh; ^ 1 error generated. Deal with this at some point, i.e. investigate if the right thing is to remove that -Wgnu-variable-sized-type-not-at-end from our CFLAGS, for now do the test the same way as it is used looks more sensible. Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200402015249.3800462-1-namhyung@kernel.org [ split from a larger patch, removed blank line at EOF ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>