diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-20 19:07:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-05-21 11:37:59 +0200 |
| commit | 3cafa9fbb5c1d564b7b8e7224f493effbf04ffee (patch) | |
| tree | c046895789900e8a031b241e79e7f0d45d7e39f0 /include/linux/perf_event.h | |
| parent | 5d967a8be636a4f301a8daad642bd1007299d9ec (diff) | |
| download | linux-3cafa9fbb5c1d564b7b8e7224f493effbf04ffee.tar.gz linux-3cafa9fbb5c1d564b7b8e7224f493effbf04ffee.tar.bz2 linux-3cafa9fbb5c1d564b7b8e7224f493effbf04ffee.zip | |
perf: Optimize the !vmalloc backed buffer
Reduce code and data by using the knowledge that for
!PERF_USE_VMALLOC data_order is always 0.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20100521090710.795019386@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 7bd17f0488f8..09cd9c1abfda 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -588,8 +588,8 @@ struct perf_mmap_data { struct rcu_head rcu_head; #ifdef CONFIG_PERF_USE_VMALLOC struct work_struct work; + int page_order; /* allocation order */ #endif - int data_order; /* allocation order */ int nr_pages; /* nr of data pages */ int writable; /* are we writable */ int nr_locked; /* nr pages mlocked */ |