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| author | Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2009-12-09 11:29:44 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-09 09:56:27 +0100 |
| commit | b93f7978ad6b46133e9453b90ccc057dc2429e75 (patch) | |
| tree | f3420ebd5fa80ddb1a4c3e302a64861146104385 /kernel/sysctl.c | |
| parent | aa5452d70c0d559310598b243b8b1033c10056e7 (diff) | |
| download | kernel_samsung_espresso10-b93f7978ad6b46133e9453b90ccc057dc2429e75.zip kernel_samsung_espresso10-b93f7978ad6b46133e9453b90ccc057dc2429e75.tar.gz kernel_samsung_espresso10-b93f7978ad6b46133e9453b90ccc057dc2429e75.tar.bz2 | |
perf_event: Allocate children's perf_event_ctxp at the right time
In current code, children task will allocate memory for
'child->perf_event_ctxp' if the parent is counted, we can
do it only if the parent allowed children inherit it.
It can save memory and reduce overhead.
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <4B1F19A8.5040805@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sysctl.c')
0 files changed, 0 insertions, 0 deletions