diff options
| author | Tom Zanussi <tzanussi@gmail.com> | 2010-05-04 23:02:10 -0500 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-05-20 08:37:17 +0200 |
| commit | cbb5cf7ff6b298beacfe23db3386335b0b9c0a2d (patch) | |
| tree | 153901937a7ce3acffc536c48652e0d87a52685b /kernel/perf_event.c | |
| parent | 537b60d17894b7c19a6060feae40299d7109d6e7 (diff) | |
perf: Use read() instead of lseek() in trace_event_read.c:skip()
This is a small fix for a problem affecting live-mode, introduced
recently:
root@tropicana:~# perf trace rwtop
perf trace started with Perl
script /root/libexec/perf-core/scripts/perl/rwtop.pl
Fatal: did not read header event
commit d00a47cce569a3e660a8c9de5d57af28d6a9f0f7 added a skip()
function to skip over e.g. header_page, but this doesn't work for
live mode. This patch re-implements skip() to use read() instead of
lseek() to fix that.
Signed-off-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1273032130.6383.28.camel@tropicana>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/perf_event.c')
0 files changed, 0 insertions, 0 deletions