diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2009-12-15 19:43:11 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-15 20:12:20 +0100 |
| commit | f13c12c634e124d5d31f912b969d542a016d6105 (patch) | |
| tree | bbb5796189ba8c2755cc14880c2216862c2fc540 | |
| parent | cdccc69003388665e1463003f0488cf8ce9cf9e8 (diff) | |
perf_events: Fix perf_event_attr layout
The miss-alignment of bp_addr created a 32bit hole, causing
different structure packings on 32 and 64 bit machines.
Fix that by moving __reserve_2 into that hole.
Further, remove the useless struct and redundant __bp_reserve
muck.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1260902591.8023.781.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | include/linux/perf_event.h | 12 | ||||
| -rw-r--r-- | kernel/perf_event.c | 2 |
2 files changed, 4 insertions, 10 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 64a53f74c9a..5fcbf7d2712 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -211,17 +211,11 @@ struct perf_event_attr { __u32 wakeup_watermark; /* bytes before wakeup */ }; - struct { /* Hardware breakpoint info */ - __u64 bp_addr; - __u32 bp_type; - __u32 bp_len; - __u64 __bp_reserved_1; - __u64 __bp_reserved_2; - }; - __u32 __reserved_2; - __u64 __reserved_3; + __u64 bp_addr; + __u32 bp_type; + __u32 bp_len; }; /* diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 8823b088518..0dd8e5d02c6 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -4564,7 +4564,7 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr, if (attr->type >= PERF_TYPE_MAX) return -EINVAL; - if (attr->__reserved_1 || attr->__reserved_2 || attr->__reserved_3) + if (attr->__reserved_1 || attr->__reserved_2) return -EINVAL; if (attr->sample_type & ~(PERF_SAMPLE_MAX-1)) |