Commit 1c696b97 authored by David Miller's avatar David Miller Committed by Greg Kroah-Hartman

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: default avatarDavid S. Miller <>
Cc: Jiri Olsa <>
Cc: Kan Liang <>
Fixes: 6c872901 ("perf cpu_map: Add cpu_map event synthesize function")
Link: default avatarArnaldo Carvalho de Melo <>
Signed-off-by: default avatarSasha Levin <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent 2530be54
......@@ -839,6 +839,7 @@ void *cpu_map_data__alloc(struct cpu_map *map, size_t *size, u16 *type, int *max
*size += sizeof(struct cpu_map_data);
*size = PERF_ALIGN(*size, sizeof(u64));
return zalloc(*size);
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