diff options
| author |   Andy Isaacson <adi@hexapodia.org> | 2010-06-11 20:36:15 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-06-17 13:55:54 -0300 |
| commit | 0f2c3de2ba110626515234d5d584fb1b0c0749a2 (patch) | |
| tree | e03dfb35a8cade9258f72d097f48ef49ac1a14c4 /arch/s390 | |
| parent | perf debug: fix hex dump partial final line (diff) | |
| download | linux-dev-0f2c3de2ba110626515234d5d584fb1b0c0749a2.tar.xz linux-dev-0f2c3de2ba110626515234d5d584fb1b0c0749a2.zip | |
perf session: fix error message on failure to open perf.data
If we cannot open our data file, print strerror(errno) for a more
comprehensible error message; and only suggest 'perf record' on ENOENT.
In particular, this fixes the nonsensical advice when:
% sudo perf record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.009 MB perf.data (~381 samples) ]
% perf trace
failed to open file: perf.data (try 'perf record' first)
%
Cc: Ingo Molnar <mingo@elte.hu>
LPU-Reference: <20100612033615.GA24731@hexapodia.org>
Signed-off-by: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions