lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

perf tools: Use DECLARE_BITMAP instead of an open-coded array

Browse Source 
Use DECLARE_BITMAP instead of an open coded array for our bitmap
of featured sections.

This makes the array an unsigned long instead of a u64 but since
we use a 256 bits bitmap, the array size shouldn't vary between
different boxes.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1255795038-13751-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frederic Weisbecker
2009-10-17 17:57:18 +02:00
committed by Ingo Molnar
parent 2ba0825075
commit db9f11e36d
4 changed files with 20 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
tools/perf/util/header.h
View File

@ -5,6 +5,8 @@
#include <sys/types.h>
#include "types.h"
#include <linux/bitmap.h>
struct perf_header_attr {
struct perf_event_attr attr;
int ids, size;
@ -16,8 +18,6 @@ struct perf_header_attr {
#define HEADER_FEAT_BITS 256
typedef typeof(u64[HEADER_FEAT_BITS / 8]) feat_mask_t;
struct perf_header {
int frozen;
int attrs, size;
@ -27,14 +27,9 @@ struct perf_header {
u64 data_size;
u64 event_offset;
u64 event_size;
feat_mask_t adds_features;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};
static inline unsigned long *perf_header__adds_mask(struct perf_header *self)
{
return (unsigned long *)(void *)&self->adds_features;
}
struct perf_header *perf_header__read(int fd);
void perf_header__write(struct perf_header *self, int fd);