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| 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/x86/mm/extable.c | |
| parent | 84c104ad429c8a474b93dd374815d1c238032fa8 (diff) | |
| download | op-kernel-dev-0f2c3de2ba110626515234d5d584fb1b0c0749a2.zip op-kernel-dev-0f2c3de2ba110626515234d5d584fb1b0c0749a2.tar.gz | |
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/x86/mm/extable.c')
0 files changed, 0 insertions, 0 deletions
