perf kmem: Support legacy tracepoints
authorLeo Yan <leo.yan@linaro.org>
Sun, 8 Jan 2023 06:23:59 +0000 (14:23 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Jan 2023 10:58:31 +0000 (11:58 +0100)
commit4e81a8a47dc667574afe2d1ee825b9a130b9fe0f
tree4861361522b7e35e9d2a99dc3dc8439c894fa6c8
parentd4bc9f017f3163348bfa7c2f76b2ab2058d12e72
perf kmem: Support legacy tracepoints

[ Upstream commit b3719108ae60169eda5c941ca5e1be1faa371c57 ]

Commit 11e9734bcb6a7361 ("mm/slab_common: unify NUMA and UMA version of
tracepoints") removed tracepoints 'kmalloc_node' and
'kmem_cache_alloc_node', we need to consider the tool should be backward
compatible.

If it detect the tracepoint "kmem:kmalloc_node", this patch enables the
legacy tracepoints, otherwise, it will ignore them.

Fixes: 11e9734bcb6a7361 ("mm/slab_common: unify NUMA and UMA version of tracepoints")
Reported-by: Ravi Bangoria <ravi.bangoria@amd.com>
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/r/20230108062400.250690-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/perf/builtin-kmem.c