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| author |   Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2010-02-03 11:53:14 +0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2010-02-03 09:03:59 +0100 |
| commit | b8f46c5a34fa64fd456295388d18f50ae69d9f37 (patch) | |
| tree | cba5da0bb3e4ca5c450df8aaa53fc74945c6fd28 /tools/perf/util/trace-event-read.c | |
| parent | perf lock: Clean up various details (diff) | |
| download | linux-dev-b8f46c5a34fa64fd456295388d18f50ae69d9f37.tar.xz linux-dev-b8f46c5a34fa64fd456295388d18f50ae69d9f37.zip | |
perf tools: Use O_LARGEFILE to open perf data file
Open perf data file with O_LARGEFILE flag since its size is
easily larger that 2G.
For example:
# rm -rf perf.data
# ./perf kmem record sleep 300
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 3142.147 MB perf.data
(~137282513 samples) ]
# ll -h perf.data
-rw------- 1 root root 3.1G .....
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: <4B68F32A.9040203@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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c index 1744422cafcb..ca3c26d466f3 100644 --- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -83,7 +83,7 @@ static char *read_string(void) char *str = NULL; int size = 0; int i; - int r; + s64 r; for (;;) { r = read(input_fd, buf, BUFSIZ); @@ -117,7 +117,7 @@ static char *read_string(void) i++; /* move the file descriptor to the end of the string */ - r = lseek(input_fd, -(r - i), SEEK_CUR); + r = lseek64(input_fd, -(r - i), SEEK_CUR); if (r < 0) die("lseek"); |