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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-23 20:13:11 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-25 21:39:07 +0200 |
| commit | 38b200d67636a30cb8dc1508137908e7a649b5c9 (patch) | |
| tree | 74f88d57a7f55075d4cd0b46690ff4b319dca642 /fs/nilfs2 | |
| parent | 194002b274e9169a04beb1b23dcc132159bb566c (diff) | |
| download | linux-38b200d67636a30cb8dc1508137908e7a649b5c9.tar.gz linux-38b200d67636a30cb8dc1508137908e7a649b5c9.tar.bz2 linux-38b200d67636a30cb8dc1508137908e7a649b5c9.zip | |
perf_counter: Add PERF_EVENT_READ
Provide a read() like event which can be used to log the
counter value at specific sites such as child->parent
folding on exit.
In order to be useful, we log the counter parent ID, not the
actual counter ID, since userspace can only relate parent
IDs to perf_counter_attr constructs.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/nilfs2')
0 files changed, 0 insertions, 0 deletions