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authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>2010-02-04 16:46:42 +0800
committerIngo Molnar <mingo@elte.hu>2010-02-04 10:03:03 +0100
commitf887f3019e56389a73617f4e70f512e82cc89adb (patch)
tree176b13e6d9713715d1b4eef75e702b47e6923606 /tools/perf/util/trace-event-read.c
parent447a194b393f32699607fd99617a40abd6a95114 (diff)
downloadlinux-f887f3019e56389a73617f4e70f512e82cc89adb.tar.bz2
perf tools: Clean up O_LARGEFILE et al usage
Setting _FILE_OFFSET_BITS and using O_LARGEFILE, lseek64, etc, is redundant. Thanks H. Peter Anvin for pointing it out. So, this patch removes O_LARGEFILE, lseek64, etc. Suggested-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <4B6A8972.3070605@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/trace-event-read.c')
-rw-r--r--tools/perf/util/trace-event-read.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index ca3c26d466f3..7cd1193918c7 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -18,7 +18,7 @@
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#define _LARGEFILE64_SOURCE
+#define _FILE_OFFSET_BITS 64
#include <dirent.h>
#include <stdio.h>
@@ -83,7 +83,7 @@ static char *read_string(void)
char *str = NULL;
int size = 0;
int i;
- s64 r;
+ off_t r;
for (;;) {
r = read(input_fd, buf, BUFSIZ);
@@ -117,8 +117,8 @@ static char *read_string(void)
i++;
/* move the file descriptor to the end of the string */
- r = lseek64(input_fd, -(r - i), SEEK_CUR);
- if (r < 0)
+ r = lseek(input_fd, -(r - i), SEEK_CUR);
+ if (r == (off_t)-1)
die("lseek");
if (str) {
@@ -282,8 +282,8 @@ static void update_cpu_data_index(int cpu)
static void get_next_page(int cpu)
{
- off64_t save_seek;
- off64_t ret;
+ off_t save_seek;
+ off_t ret;
if (!cpu_data[cpu].page)
return;
@@ -298,17 +298,17 @@ static void get_next_page(int cpu)
update_cpu_data_index(cpu);
/* other parts of the code may expect the pointer to not move */
- save_seek = lseek64(input_fd, 0, SEEK_CUR);
+ save_seek = lseek(input_fd, 0, SEEK_CUR);
- ret = lseek64(input_fd, cpu_data[cpu].offset, SEEK_SET);
- if (ret < 0)
+ ret = lseek(input_fd, cpu_data[cpu].offset, SEEK_SET);
+ if (ret == (off_t)-1)
die("failed to lseek");
ret = read(input_fd, cpu_data[cpu].page, page_size);
if (ret < 0)
die("failed to read page");
/* reset the file pointer back */
- lseek64(input_fd, save_seek, SEEK_SET);
+ lseek(input_fd, save_seek, SEEK_SET);
return;
}